A new computational system effectively mimics the natural way the human eye corrects focus, specifically while viewing objects that are closer. Anatomy and physiology of the human eye, optical illusions, eye conditions and diseases, eye surgery also light, optics, color, rods and cones, vision tests. Adjustable focal length lens (os-8494) 12 lenses retina screen pupil aperture foam lens holder human eye model without lens experiment manual. 5 days ago new research suggests the human eye and brain are capable of seeing ghosted images, a new type of visual phenomenon that scientists.
Webpage for the human eye bank at st michael's hospital, toronto, ontario, canada. Read about the first robot-assisted eye surgery on a human, proving that robotic surgery is just as effective as those performed by humans,. A tour of the eye with an explanation of how we see in normal life is followed by a real life example of divers in the moken tribe in thailand whose eyes have.
The human eye is an organ which reacts to light and pressure as a sense organ, the mammalian eye allows vision human eyes help to provide a three. The human eye is sometimes referred to as the most complex organ in our body take care of your eyes with regular eye exams call westside. To cover content standards such as explain how the human eye sees objects and colors in terms of wavelengths educators have students create models of the. Abstract depth of focus of the human eye is determined by the loss of resolving power (visual acuity) with increase in out-of-focus blurring of the retinal image. The human eye is the gateway to one of our five senses the human eye is an organ that reacts with light it allows light perception, color vision and depth.
Zoologist dan-erik nilsson demonstrates how the complex human eye could have evolved through natural selection acting on small variations starting with a . We've put together 51 facts about your eyes that will help you realise just how remarkable they truly are: 1 the human eye works just like a. Click on various parts of our human eye illustration for descriptions of the eye anatomy read an article about how vision works.
The human eye is a complex organ that comprises the tear film, conjunctiva, cornea, aqueous humor, iris, ciliary body, lens, vitreous humor, retina, choroid,. Even as he verifies the human eye's ability to detect single photons, kwiat, an experimental quantum physicist at the university of illinois at. Such variety of models reflects the fact that all models are incomplete, since the real human eye contains both cornea and lens (anatomical), works with.
Physics the human eye and the colorful world - learn physics in simple and easy steps starting from basic to advanced concepts with examples including. Darwin was baffled by it christians see it as evidence of the divine will science ever unlock the secrets of the human eye. The human eye is an amazing organ webmd explains how it works.


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A group of researchers from MIT, the University of California at Berkeley and Boston University have developed a technique for assembling on-chip optics and electronic separately, which enables the use of more modern transistor technologies.
The technique can be used by existing manufacturing processes and according to Amir Atabaki, one of the research scientists involved in the project, “The most promising thing about this work is that you can optimise your photonics independently from your electronics.”
Moving from electrical communication to optical communication is an attractive proposition for chip manufacturers because it could significantly increase chips’ speed and reduce power consumption, an increasingly important advantage as chips’ transistor count continues to rise:
The integration of optical – or “photonic” – and electronic components on the same chip reduces power consumption. The optical communications devices currently on the market tend to consume too much power and generate too much heat to be integrated into an electronic chip such as a microprocessor.
Atabaki and his colleagues have used a more space-efficient modulator design, based on a photonic device called a ring resonator.
“We have access to photonic architectures that you can’t normally use without integrated electronics,” Atabaki explains. “For example, today there is no commercial optical transceiver that uses optical resonators, because you need considerable electronics capability to control and stabilize that resonator.”
In addition to millions of transistors for executing computations, the researchers’ new chip includes all the components necessary for optical communication: modulators; waveguides, which steer light across the chip; resonators, which separate out different wavelengths of light, each of which can carry different data; and photodetectors, which translate incoming light signals back into electrical signals.
Silicon must be fabricated on top of a layer of glass to yield useful optical components. The difference between the refractive indices of the silicon and the glass is what confines light to the silicon optical components.
Earlier work on integrated photonics involved a process called wafer bonding, in which a single, large crystal of silicon is fused to a layer of glass deposited atop a separate chip. The new work, in enabling the direct deposition of silicon on top of glass, uses polysilicon, which consists of many small crystals of silicon.
Single-crystal silicon is useful for both optics and electronics, but in polysilicon, there’s a trade-off between optical and electrical efficiency. Large-crystal polysilicon is efficient at conducting electricity, but the large crystals tend to scatter light, lowering the optical efficiency. Small-crystal polysilicon scatters light less, but it’s not as good a conductor.
Using the manufacturing facilities at SUNY-Albany’s Colleges for Nanoscale Sciences and Engineering, the researchers tried out a series of recipes for polysilicon deposition, varying the type of raw silicon used, processing temperatures and times, until they found one that offered a good trade-off between electronic and optical properties.
“I think we must have gone through more than 50 silicon wafers before finding a material that was just right,” Atabaki said.


April 11, 2012
Tamron 24-70mm f2.8 with Image Stabilization
Tamron announces the world's first full-frame fast-aperture 24-70mm f2.8 zoom lens with integrated image stabilization. The SP 24-70 f2.8 Di VC USD features an entire gamut of the latest optical technology. It is equipped with the silent and fast-focusing Ultrasonic Drive, the extremely effective three-coil Vibration Compensation, moisture-resistant construction and a nine-blade diaphragm for smooth bokeh. The lens will be initially available in Canon mount in late April, with the Nikon mount to follow shortly thereafter. Hit the link for more details.
Posted by covey22 at April 11, 2012 2:38 PM


QUIM-1513 Laboratorio de Fisicoquímica II
To have students successfully interpret IR, UV, and VIS molecule spectra using basic quantum mechanics methods. Course topics include: selected basics of quantum mechanics, UV and VIS spectra of simple atoms (H and He), IR spectra of simple molecules the vibration and rotation model, graduating from two atom molecules to more complex molecules, spectroscopy and chemical reactions, aspects of symmetry, group theory, reducible and irreducible representations, UV and VIS molecule spectra, the Frank-Condon principle, Fluorescence spectroscopy, lifetime of excited states, Raman spectroscopy, laser spectroscopy, high temporal or spectral resolution.
InstructorFonseca Correa Rafael
Catalog page for this course


How to identify crystal glass cup and glass water cup?
1, By hand.
Crystal heat conduction performance is stronger than glass, so when you touch the crystal glass cup should feel cool than touching the glass cup.
2, See the hardness.
A Crystal cup up against the light rotation, you will find glass crystal clear, able to refract light. Ordinary glass no gloss, no refract.
4, Listen to the sound.
Tapping or with fingers hit utensils, Crystal glassware to make crispy metal sound, while ordinary glass muffled sound.
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VirtualLab Fusion fast physical optics design software offers solutions for the entire development cycle of optical components using advanced simulation technology.
Designing optical components and complex systems, detailed modeling and performing tolerance analyses are examples of functions in which the VirtualLab Fusion software can dramatically optimize the design and modeling process.
LightTrans International GmbH provides solutions, among others, for the following areas:
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Controlling chemistry in space and time offers offered scientists and technicians powerful tools for research and technology. developed a polymer that photochemically degrades upon absorption of one photon of visible light and shown its potential for medical SMI-4a applications. Particles formulated from this polymer launch molecular cargo and upon irradiation with blue visible light via a photoexpansile swelling mechanism. Intro Controlling chemistry in space and time with light offers verified enormously useful in biological study. For example optogenetics is considered the breakthrough of the decade and has revolutionized neuroscience.1 However current means of controlling cellular processes using light require tedious synthetic or genetic development of tools specific to each target. On the other hand light-responsive nanocarriers2 can be used to control the activity of any encapsulated bioactive molecule including proteins and nucleic acids without the need for chemical modification. Such versatile tools have enormous potential to advance fundamental understanding of SMI-4a physiological developmental and disease processes. Externally SMI-4a triggered launch of medicines from nanomaterials may also have exciting applications in the treatment of disease as it could allow precise Rabbit polyclonal to NR4A1. coordination with biological rhythms or disease activity. Since particles can be injected within the tissue of interest and remain localized inside a depot-like manner the pharmacokinetic profile of the encapsulated drug can be modified. Such an approach would minimize injections and harmful side effects while increasing therapeutic end result. Light-responsive systems useful must be highly efficient and capable of responding to electromagnetic radiation that can innocuously penetrate into cells. To date most photochemical systems do not fulfill such physiological requirements as the majority rely on UV light activation 2 3 which is both damaging to cells and does not appreciably penetrate cells. Systems making use of near-infrared (NIR) laser light by multi-photon methods which include two-photon excitation4 and upconverted UV light5 have been developed to sidestep these limitations. Unfortunately achieving adequate photocleavage of polymer to induce launch from nanoparticles by these methods currently requires prolonged irradiation at high laser powers which could lead to heat-induced damage of biological cells.6 The development of one-photon visible light-responsive carriers4c h i 7 signifies an attractive alternative to both one-photon UV- SMI-4a and two-photon NIR-responsive carriers for applications because it is several orders of magnitude more efficient than two-photon excitation 8 requiring much shorter irradiation times at lower capabilities and is less harmful to cells than UV light. Influenced by recent developments in the photo-uncaging field we synthesized a polymer that degrades upon one-photon absorption of blue visible light (polymer 1 Number 1 Plan S1) by incorporating a recently developed red-shifted photocage developed by Donato mouse model we demonstrate light-triggered drug launch from a subcutaneously implanted polymer SMI-4a 1 particle depot with blue visible light. Results and discussion Design light response and degradation mechanism In this work the propyloxy chain of the previously reported ANBP8 (2-(4��-(N N-dimethylamino)-4-nitro-[1 1 propyl carbonyl) photocage was elongated to yield the butane-diol derivative 2-(4��-N-dimethylamino-4-nitro-[1 1 butane-1 4 dicarbonyl (ANBB Number 1 ? 2 2 Plan S1). This changes facilitates polymerization and enhances the kinetics of photodegradation by placing the photolabile relationship directly in the polymer backbone (Number 1).4i 9 Like ANBP ANBB is photochemically active in hydrophobic environments. As previously reported the photochemistry of this class of photoresponsive molecules is strongly dependent on solvent and basicity.10 In water the photo-induced applications we examined the effectiveness of photochemistry after SMI-4a passage of light through hairless mouse pores and skin (thickness: ~0.45 mm) sandwiched between two glass slides (Number 4a S4). Polymer 1 solutions were irradiated with and without this cells filter in the beam path and the photoreaction kinetics were measured by UV-Vis absorption.


Eye Surgery has come to be a mainstream method of vision correction, and this article will certainly describe the benefits as well as drawbacks of three various techniques being offered to the clinical customer.
Lasik Eye Surgery
LASIK is the phrase for Laser-Assisted Sitting Keratomileusis and is an eye medical system which permanently corrects vision by removing a slim layer of the cornea. This procedure functions best on clients with moderate to high degrees of nearsightedness (nearsightedness), reduced to modest degrees of hyperopia (farsightedness) and astigmatism related to nearsightedness, as well as that have thick corneas. It is the most widely known surgical vision modification approach.
People with regular eye sight see objects plainly because photos are brought into an appropriate centerpiece by the cornea as well as lens of the eye. Preferably, the cornea's curvature is evenly matched to its length in a typical eye. Individuals with astigmatism, myopia or hyperopia have irregularly shaped corneas, so the things seen are not concentrated properly. LASIK adjustments corneal shape by specific elimination of corneal cells, and by doing so corrects the eyes' focusing power.
There are, nonetheless, dangers to LASIK eye surgical treatment.
There is a remote opportunity of full loss of vision. If this takes place, it is generally due to the fact that the patient had a pre-existing problem which ought to have averted the surgical treatment in the first place, such as pregnancy, cataracts, arthritis, diabetes mellitus, glaucoma, or lupus. People with large students are also bad prospects for LASIK. Dry eye disorder will certainly be exacerbated by this treatment.
A couple of patients complain that they completely see "ghost" pictures, have obscured vision, reduced contrast and also negative evening vision. When LASIK wased initially presented, 5% of clients had post-operative complaints; nevertheless, improvements in the procedure have actually triggered this rate to go down to less compared to 1% if LASIK is executed by competent specialists and individuals are appropriately screened before surgical treatment. If troubles do happen, they can typically be resoved by a retreatment.
FDA has actually accepted LASIK laser eye surgical procedure since 1998. While there are a lot of pleased people, there are nevertheless no long term researches regarding its impacts. Understand the constraints and also the risks of LASIK eye surgical procedure before you sigh for the procedure.
Though less popular, these small implants can improve vision in patients with light to moderate myopia without the risk of irreversible eye damages intrinsic in the cells removal method of LASIK. Intacs are semi-circular disks implanted in the cornea which extend it to assume a flatter shape. Though somewhat much less precise than LASIK, they are removeable as well as changeable, so if the client has an unanticipated over- or under-correction, the dental implant can be gotten rid of and also one more of a various size inserted to obtain the desired correction. The implants are located beside the cornea, so the main aesthetic click this site location is completely undamaged and also undamaged, and the stamina of the cornea is undiminished, making it a much better choice for pilots and also those who engage in get in touch with sporting activities where eye injury is a possibility.
Intacs are unsuitable for extreme myopia as well as more than minor astigmatism (1.00 diopters), as the cornea can just be extended so far. If the Intacs are eliminated, vision go back to its preoperative degree. Apart from vision improvement, Intacs are also used to treat keratoconus.
Intacs are FDA approved as well as Ten Years researches have actually disclosed no major troubles with Intacs as well as very few patient complaints; however, since the treatment takes more training than LASIK, there are fewer eye surgery clinics supplying it. Nevertheless, the Intacs internet site gives a list of practitioners in each state, as well a couple of in Canada, Europe and also Mexico.
Since lots of people do not intend to risk LASIK and Intacs could not assist those with serious vision problems, intraocular lens implants (IOL) are a new alternative accepted by the FDA in 2004 to remedy moderate to serious nearsightedness. The Craftsmen lens, made by Ophtec, is similar to the sort of lens implant utilized to recover vision complying with cataract eye surgery.
The new IOL, called the Craftsmen, is planned for only patients who have 2.5 diopters or much less of astigmatism.
The man-made lens does not replace the all-natural lens, but is put in front of it. The main problem located with the implant was the steady loss of endothelial cells in the corneas of individuals that received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are vital in maintaining the cornea clear. A three-year study showed a constant consistent loss of endothelial cells of 1.8 percent a year. Now, nobody could forecast whether this loss will certainly proceed at the very same price forever, or perhaps its impact on corneal function.
To minimize long-lasting effects of the gadget on the corneal endothelium, the FDA is calling for that the new lenses be identified to define that they should only be implanted in people whose corneal endothelial cells are thick sufficient to withstand minor cell loss.
Extra severe issues were few: retinal detachment (0.6%), cataract growth (0.6%), and corneal swelling (0.4%). The FDA is calling for Ophtec to perform a five-year follow-up survey of its go to this website implant patients to better analyze the post-surgical occurrence of cataract growth, retinal detachment as well as other ophthalmic conditions.
The Craftsmen lens is meant to be a long-term implant.Though it could be eliminated surgically, vision might not always go back to just what it was before getting the lens. Because it does not impact astigmatism, people with this trouble might still require glasses.


Sometimes strange things happen.
I rather quickly concluded that I was not going to easily get a good picture of a flying Trumpeter Swan with a $25 800 mm manual focus, manual stop down lens. So I started to look at the local Craig’s List, eBay and other sources for a used lens that was auto focus and went out to around 300 mm. Here it is, another $25 lens.
Out of the new lens and camera combination came this interesting shot. I put the swans in the camera. Everything else got in the camera by itself. Sometimes strange things happen.


Rivbos Multifunction Sports Sunglasses are the ideal companion for various outdoor activities. Whether you're into sailing, cycling, running, or just the casual stroll in the park, you'll surely find a Rivbos lens to match your vision needs! The Dark Polarized lenses filter out unncessary glare from reflected surfaces, protecting your eyes from too much light that can cause damage to the retina. Hiking in the early morning with mist still clinging around the hiking trail? Snap on the Light Blue lens to enhance optic resolution and become safer in your walks. Cloudy weather bringing you down? Use the Rivbos transparent colourful optic lens. Cycling or driving on a very sunny day? Try the colourful optics lens which absorbs ultraviolet and infrared rays for better vision. Travelling at night? Go for the yellow lens to enhance light intensity for better visibility.


Concept cars displayed at auto shows commonly omit a standard, time honored safety feature: the rearview mirror. In high tech concept cars, digital cameras and displays meant to replace rear and side view mirrors have become a standard innovation, despite the fact that the United States government has not yet approved any such safety feature for public roadways. Safety guidelines mandated by the United States Department of Transportation and National Highway Traffic Safety Administration do not currently allow automakers to manufacture vehicles with digital displays in place of the required mirrors for use on state highways and city streets, but Audi has begun employing the technology in race cars, vehicles that are exempt from the federal safety requirements set forth for consumer passenger vehicles. The automaker’s most recent prototype for its R18 Le Mans racing car has been equipped with a digital rear facing video camera, protected by carbon fiber housing and affixed to the vehicle’s rear tail fin. The camera is linked to an active matrix organic light emitting diode (AMOLED) screen, which allows for a view of the vehicle’s rear inside of a cockpit that is completely closed off except for its windshield. The mid engined R18 Le Mans racing car does not have space to accommodate a rear window, so the new Audi prototype would offer Le Mans drivers their first glimpse of the road behind them.


· Metal frame
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· UV400 Protection Sun Glasses:Anti reflective lenses can block 100% of both UVA and UVB radiation, filtering out sunlight reflected glare and protecting your eyes against of UV400 damage.
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How to choose binoculars for hunting02.12.2019
Hunting binoculars are a necessary and very useful thing. It helps to see the remote object in conditions of poor visibility, helps to navigate the terrain, choose the route, search for game at a great distance. Binoculars for hunting thing is really indispensable. In order for binoculars to become your reliable helper in hunting, not an unnecessary burden, it must be chosen correctly.
The choice of binoculars is not an easy task, because from the large range of available binoculars you need to choose the binoculars suitable for your parameters and requirements, and on the other hand, you need to meet the budget, which you can spend on buying binoculars. Professional advice on how to choose binoculars for hunting will help you to orientate yourself in a wide range of such devices. From the very beginning, the hunter needs to decide what he needs binoculars for, what kind of hunting he needs it for, where and how he will use it. Having defined with these moments the hunter will consciously choose parameters and characteristics of his future binoculars for hunting.
Characteristics of binoculars for hunting
When we are going to buy binoculars in a store or on the site, we face a huge selection of different models, and each model of binoculars has its own characteristics, which are difficult for a simple hunter to understand. Let’s try to understand some of the features that will help you choose the best binoculars for deer hunting.
Magnification of binoculars for deer hunting
The Magnification binoculars show how much it magnifies remote objects. Many hunters, when choosing binoculars for hunting, try to buy binoculars with maximum magnification, but the pursuit of excessive magnification is a mistake. Firstly, in most situations, such binoculars are uncomfortable to use, because of the shaking hands the image shakes without giving you a look at what you need. Secondly, large magnification binoculars are usually accompanied by large size binoculars and its high weight, such binoculars you are tormented to carry around the forest, touching them by trees and bushes.
Choose magnification binoculars depending on the conditions in which you are hunting. When hunting in the woods, you will have enough magnification of 7-8 times. The distances seen in the forest are small and with 7-8x magnification you will be able to see the deer hiding in the thick foliage.
The mountainous terrain requires maximum magnification: 12 or more multiple devices are used. Mountain hunting involves huge distances and searching for hunting objects in large areas, so the multiplicity of binoculars is required. Often in mountain hunting with binoculars with high magnification are used tripods on which these binoculars are fixed, to eliminate the tremor of the image. But for deer hunting, of course, this is not the case.
Choosing binoculars for hunting, it is worth paying attention to the diameter of the lens, it is the second most important parameter of binoculars, after magnification, it affects the angle of view, the aperture of the device, the width of the field of view. The larger the diameter of the lens, the more light enters the binoculars and the brighter and more contrasting the image given by the binoculars. For hunters who anticipate that they will often have to hunt in low light conditions, at night or at dusk, choose binoculars with a large lens diameter. Such binoculars will have excellent light-aperture characteristics and will allow observing difficult lighting conditions.


Offering a feminine approach to a cat-eye style, Bask's Peggy frame is crafted from a shiny gold metal with a rounded acetate brow. Perfect for your days spent seaside, the Peggy is fitted with Bask's signature CR39 polarised lenses while the soft nose pads are adjustable for extra comfort.
Lens: 59 Bridge: 19 Arm: 145
All Bask sunglasses feature CR39 polarised lenses with 100% UV protection. Each lens has a blue anti-reflective coating found on the inside that acts as an absorbent layer and prevents glare from reflecting back into the eye, ultimately increasing user comfort and wearability.


UO physicist Michael Raymer is helping pave the way for faster, more secure Web browsing through the quirkiness of quantum mechanics, which operates on the level of single electrons of matter and single photons of light. By focusing a dual-color burst of laser light onto a fiber-optic cable, Raymer and doctoral student Hayden McGuinness were able to change the color of a single photon—a crucial step toward quantum computing.
The implications? If digital information can be stored and transmitted in a single electron and a single photon—rather than being stored in bits composed of many electrons and transmitted in light pulses containing many photons, as is currently the case—then quantum theory predicts a huge speedup of certain computer-intensive tasks, such as searching the Internet. Imagine “lightning-fast quantum Google,” said Raymer.
Right: Graduate student Hayden McGuinness in the lab. Photos: Katie Campbell
The research by Raymer and McGuinness takes advantage of the fact that, at the level of single electrons and photons, quantum strangeness reigns. Think Einstein’s “spooky action at a distance,” the Heisenberg uncertainty principle and Schrödinger’s dead-or-alive cat (see sidebar). Because of this small-scale complexity, certain types of Internet transactions, such as searches, would become unthinkably fast and utterly hacker-proof.
One aspect of that quantum strangeness is wave-particle duality, which means that a photon of light possesses the properties of both a wave and a particle at the same time. This permits quantum bits to store values of both 0 and 1 simultaneously, unlike typical computer bits, which must have a value of either 0 or 1. This feature could not only significantly increase computational speed but could also render the quantum information safe from prying eyes. That’s because even the most careful observation of the quantum system would disturb its state, revealing the intrusion—another “spooky” effect.
One roadblock, however, is that quantum systems are based on the fact that electrons emit and absorb visible light. But existing fiber-optic cables are optimized to transmit infrared light. Raymer’s work potentially overcomes this obstacle.
In the next phase of their work, “the objective is to convert a single photon from the color that a common quantum memory will deal with into an infrared photon that communication fibers can transmit,” said Raymer, Knight Professor of Liberal Arts and Sciences. “At the other end, it has to be converted back into the original color to go into the receiving memory to be read properly.”
Raymer, who is dedicated to making science accessible to nonscientists (see Science Literacy story), recently published The Silicon Web: Physics for the Internet Age (Taylor and Francis, 2009) for the curious nonscientist who has little or no mathematics or physics background. The book covers the basics of mechanics, electromagnetism, waves, optics and quantum physics as well as the science behind advanced technologies such as lasers, fiber-optic communication and semiconductors.
“One can argue that scientific thought and methods have changed the course of human history as much as or more than anything else,” Raymer writes in the book’s preface. “To have a deeper understanding of where humanity is at present, it pays to study science and technology.”
— Eric Tucker
Sidebar: Quantum Strangeness Reigns
• Physicist Albert Einstein used the phrase “spooky action at a distance” to describe the quantum-mechanical phenomenon of quantum entanglement, in which the physical properties of two particles separated by vast distances remain strangely intertwined.
• In 1935, physicist Erwin Schrödinger devised a deliberately absurd thought experiment to illustrate the strangeness of quantum entanglement. In it, an unfortunate cat, trapped inside a box with a vial of poison that is randomly released or not, is simultaneously dead and alive until someone opens the box and observes it. Similarly, in the UO experiment, under the action of the dual laser burst in an optical fiber, a single photon of light can end up being both red and green at the same time until someone observes it, at which time it must “decide” which color to be.
• Formulated by physicist Werner Heisenberg in the 1920s, the quantum uncertainty principle states that the exact velocity and position of a subatomic particle can never be known simultaneously. For instance, measurement of the velocity of a particle will displace it by an unknown amount, invalidating the simultaneous measurement of its position. For light, measurement of the color of a photon will displace it in time by an unknown amount, invalidating the simultaneous measurement of its arrival time. Using this principle, it would be possible to tell whether or not an eavesdropper has tampered with the photon in an attempt to intercept a message being sent across the Internet.


Soundlux Audio is proud to represent DS Audio
Digital Stream Corporation (DSC), with over 25 years of experience in the laser optics market, has recently expanded its portfolio by establishing DS Audio, a new audio business group. This strategic move marks a significant milestone for DSC, which has been renowned for its specialization in industrial laser optics systems. Their expertise spans across various sectors, including optical disc markets, medical testing systems, and a range of laser optical instruments.
Among their prominent offerings is the disc evaluation system, acclaimed for its absolute accuracy in optical disc error measurement. DSC’s technology ensures that any reading errors detected during tests are exclusively due to disc errors, a claim backed by their quarter-century of experience and impressive track record. This prowess is further evidenced by their dominating 95% market share in disc tester optics, a testament to the exceptional quality and performance of their laser products.
Learn more at DS Audio.
We carry the full line of products from DS Audio. Please check with us if you don’t see a particular model you’re looking for since we’re regularly updating our products.


Lightroom Journal, a blog from the Lightroom team, has new information from Tom Hogarty in Preview of Lens Correction Solution for Camera Raw 6 and Lightroom 3:
"Below is a preview of lens correction technology that will be included in Lightroom 3 and the Camera Raw 6 plug-in that's part of Photoshop CS5. This is an exciting development for our non-destructive editing technology and is designed to address lens correction via two methods: Lens Profiles and Manual Correction. The easiest application of lens correction is to apply the lens profile technology that encompasses geometric distortion(barrel and pincushion distortion), chromatic aberration and lens vignetting characteristics."
Read more... at the Lightroom blog. By the way, Photoshop CS5 will need to be updated after install for Camera Raw 6.1.
For more info, CS5 Help is live. Here's the preview of CR and LR lens correction along with a look at the Lens Correction tool in Photoshop CS5:


Is your house cold or drafty in the winter? Do you have to run the air conditioning all day in the summer? Would you like to spend less on your utility bills? Then A Thermal Imaging home inspection is just what you need. Read How a thermal imaging inspection can benefit you as a home owner.
A thermal Imaging Camera, in its most basic form, allows the user to see a two dimensional image displayed in heat. This infrared image is created with a tiny grid of infrared detectors inside the thermal imaging camera behind a lens. When all of individual temperature values are converted from a neumeric temperature value to a color associated with a temperature, you generate a thermal image. Thermal images are usefull in many industrial applications, most industrial problems will generate heat as a byproduct such as overloaded panels or failing bearings in a motor. Building inspection is also a great appliation as thermal imaging camera's can detect heat loss around windows or doors and can even detect water damage if used properly!The single most critical feature when selecting a thermal camera is the infrared detector resolution. This is the number of points the thermal imaging camera can measure at any one time and is usually refered to as horizontal x vertical pixels. If you multiply the horizontal pixels by the vertical pixels you will get the total number of infrared measurement points that the camera is capable of measureing. More temperature measurement points will give you a clearer image, better ability to see physically smaller temperature changes and the ability to print out the image at large sizes.


Light follows straight lines, or rays, from a source of light to an observer unless it is reflected, by a mirror, or refracted, by a lens, on route.
Mirrors and lenses come in a variety of shapes to manipulate the light rays in various useful ways. Ray diagrams help us to understand their effects.
An image is formed at a point where the light rays from an object appear to come from, had their direction not been changed by a mirror or lens.
Speed of light: 3 x 108 m/s
Light ray: Path in which light travels. Can be parallel beam, converging beam or diverging beam.
Luminous object: Objects which give out light
Non-luminous object: those which do not give out light
Reflection of light
Incident ray: Light ray hitting the reflecting surface.
Reflected ray: Light ray reflected from the reflecting surface.
Normal: The perpendicular to the reflecting surface at the point of incidence.
Angle of incidence (i): The angle between the incident ray and the normal.
Angle of reflection (r): The angle between the reflected ray and the normal.
Law of Reflection
The incident ray, reflected ray and the normal of the reflecting surface lie on the same plane.
Angle of incidence = Angle of Reflection
Occurs at smooth surfaces.
Parallel light rays incident on the surface are reflected in one direction only (all rays have the same incident/ reflected ray).
The normals of all points of incidence are equal.
Occurs at rough surfaces (sandpaper, burnt boots).
Parallel light rays incident on the surface is reflected in all directions.
The normals are not parallel.
Characteristics of image formed by plane mirror
Same size as object
Virtual (not real, cannot be captured on screen)
The distance of the image from the mirror = distance of object from the mirror.
Applications of mirrors
Refraction of light
the bending effect of light as it passes through another medium of different density.
Refraction occurs as the speed of light varies in different media
The light must pass from one optical medium to another of different optical density
Angle of incidence more than 0°.
Laws of refraction
The incident ray, the normal and the refracted ray all lie on the same plane.
For 2 particular transparent media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant.
sin i / sin r = constant
When light travels from a less dense medium to a denser medium, the ray of light moves towards the normal.
Likewise, when light travels from a denser to a less dense medium, the ray of light moves away from the normal.
When light enter a medium perpendicularly, regardless of its density, no deviation of the ray is observed.
The value of the constant ratio sin i/sin r for a ray passing from air/vacuum to a give medium is known as the refractive index of the medium.
The greater the value of the refractive index, the greater the bending of light, the more the light is slowed down and the denser the medium is.
Dispersion of white light
This is due to different colours travelling different speeds in glass.
Red deviates (slows down) the least.
Violet deviates (slows down) the most.
Optical Centre (C): The midway point between the lens surface on the principal axis
Principal axis: The line passing symmetrically through the optical centre of the lens
Principal focus (F): Point on the principal axis where rays of light converge after passing through the lens
Focal length (f): Distance between the optical centre, C and the principal focus F.
Focal plane: Plane which passes through F and P. It is perpendicular to principal axis.
As light rays can pass through the lens from both sides, each lens has 2 principal foci and 1 focal length on each side of the lens.
A thicker lens has a shorter focal length and bends light rays to a greater extent whereas a thinner lens has a longer focal length and bends light rays to a shorter extent.
Linear magnification = height of image / height of object OR image distance / object distance
Constructing ray diagrams
Principle axis - the principle axis is defined as a line perpendicular to the curved surface of the lens at its center...ie - a line running horizontally through the center of the lens.
Principle focus - related to the focal length of the lens... ie - one focal length away from the center of the lens (therefore there are two principle foci, one on either side, usually designated F on the far side, and F' on the same side as the object.) Parallel rays of light entering the lens either converge towards the principle focus (convex lenses) or diverge from it (concave lenses).
Focal length - Focal length is the shortest distance between the principle axis and the principle focus.
Paraxial rays - Paraxial rays are those that are close to the principle axis and parallel to it.
Magnification - the magnification is usually defined as image height/object height, representing in effect how much bigger the image is. This is also be directly related to image distance/object distance
Summary: Mirrors, Lenses, Images
1. The diagram below shows a plane mirror placed at a distance of 400cm in front of a girl. If the doctor's test card is fixed at 70cm behind the eyes of the girl, what is the distance of the image from the girl?
2. The diagram shows a ray of light moving from air to plastic. Which ratio is the refractive index of plastic?
3. The image seen on the translucent screen of a pinhole camera is
a. real and inverted
b. real and upright
c. virtual and inverted
d. virtual and upright
4. An object is placed in front of a pinhole camera. An image is seen at the centre of the translucent screen when viewed from behind. If the object is now moved slightly nearer and to the observer's right, the image becomes
a. larger and moves to the observer's right
b. larger and moves to the observer's left
c. smaller and moves to the observer's right
d. smaller and moves to the observer's left
5. A light ray does not undergo refraction at a boundary between two media of different optical densities if its angle of incidence is
6. An object is placed in front of a lens at a distance less than the focal length of the lens.
The image formed will be
a. real, inverted and diminished
b. real, upright and magnified
c. virtual, inverted and magnified
d. virtual, upright and magnified
7. If the size of the image formed by a converging lens is the same as the object, the object distance is
a. less than the image distance
b. equal to the image distance
c. less than the focal length of the lens
d. equal to the focal length of the lens
8. Which of the following instruments does not contain lenses?
9. A boy walks at a speed of 5m/s towards a plane mirror. The boy and his image in the mirror are moving
a. towards each other at a speed of 5m/s
b. away from each other at a speed of 5m/s
c. towards each other at a speed of 10m/s
d. away from each other at a speed of 10m/s
10. The size of an image formed in a pinhole camera may be increased by
a. placing the object nearer to the camera
b. reducing the size of the object
c. decreasing the distance between the pinhole and the screen
d. making the pinhole bigger
11. In total internal reflection, the angle of incidence is
a. less than the critical angle
b. greater than the critical angle
c. less than the angle of reflection
d. greater than the angle of reflection
12. Total internal reflection can take place in glass and not in air because glass is
a. optically denser than air
b. less transparent than air
c. more transparent than air
d. as optically dense as air
13. The image formed by a slide projector is usually
a. real, inverted and diminished
b. real, inverted and magnified
c. virtual, upright and magnified
d. virtual, inverted and diminished
14. Red light cannot be dispersed by a glass prism because it
a. has a high frequency
b. has a long wavelength
c. does not have component colours
d. is not refracted in glass
15. White light is dispersed using a prism by means of
16. A student uses a converging lens to produce an enlarged virtual image of a scale she wishes to read accurately. The focal length of the lens is 10cm. What is a suitable distance between the scale and the lens?
17. Which of the following is/are optical device(s) that uses a lens to form a real image of an object?
(1) magnifying glass
(2) pinhole camera
(3) slide projector
a. (3) only
b. (1) and (2) only
c. (1) and (3) only
d. (2) and (3) only
Structured Questions and Solutions
1. An observer E stands near the edge of a swimming pool. He could see the image of a lamp L1 due to the reflection of light from the surface of the water, which acts like a mirror. L2 and L3 are two other lamps fixed as shown below.
a. On the diagram, mark the position of the image of L1.
b. Draw two rays to show how E is able to see the image of L1.
c. State whether this image is real or virtual.
d. How would the position of the image of L1 seen by E be affected if the water level in the pool were lowered?
e. Can observer E see the image of L3?
1a and b.
d. The image will appear further. (because the distance between the lamp and water surface (mirror) is now increased)
e. Yes, the observer can see the image.
2. Figure a and b show light rays reflected to an observer from the surface of each of two mirrors, one plane and the other curved. The normal, N, at each point of incidence has been drawn.
a. Complete both diagrams by drawing accurately the incident rays that would produce the reflected rays shown. The incident rays should start from lines PQ and XY.
b. Write down the lengths of the portion of PQ and XY which observers A and B can see in the two mirrors respectively.
c. Give one reason why the side mirrors of most cars are curved.
First measure the angle of incidence using a protractor.
Then draw the reflected ray, with the angle of reflection equal to the angle of reflection.
Another way is to make use of the images of points X and Y, using the following steps:
draw a perpendicular line from point X to the mirror, and extend the line upwards to determine the image of point X.
draw a line linking the image to the normal, and extend it so that the line touches lines PQ and XY.
b. AB: 3.3cm
c. Provide drivers with a wider field of vision
3. The diagram shows a person whose eyes are 1.6m above the ground. He looks at his reflection in a vertical plane mirror 2.5m away. The top and bottom of the mirror are 2.0m and 1.0m above the ground respectively.
a. How far behind the mirror is the image of the person's head?
b. The person holds the letters 'SET' in front of the mirror. Write down the image of these letters as seen by him.
c. By drawing light rays, indicate on the diagram which part of his body the person could not see in the mirror.
4. The diagram below is a scale drawing of a narrow road with a plane mirror mounted across the corner of a 90º bend. The point C represents a car.
a. Mark the position of the car image, formed by reflection at the mirror by a point I.
b. Draw the paths of two rays of light from C by which a man sees this image with his eye positioned as shown in the diagram.
The car travels towards the bend, along the centre line of the road, a distance represented by 10mm on the diagram.
c. Mark I' the position of the image of the car when it has travelled to this position.
d. Draw an arrow on the diagram to show the direction in which the car appears to the man to be travelling.
5. A plane mirror is inclined at 40º to the floor. An incident ray parallel to the floor strikes the plane mirror as shown.
a. What is the angle of incidence?
b. What is the angle between the incident ray and the reflected ray?
c. The plane mirror is lowered until the inclination is reduced to 20º. What is the change in angle of reflection?
5a. Angle of incidence is the angle between the normal and the incident ray.
Angle of incidence = 90º - 40º = 50º
5b. Angle of incidence = angle of reflection
Angle between the incident ray and the reflected ray = 50º + 50º = 100º
5c. Original angle of reflection = 50º
New angle of reflection = 70º
Change in angle of reflection = 70º - 50º = 20º
6. Two men, A and B, are standing in front of a plane mirror as shown.
a. When A looks into the mirror, how far does B seem to be away from him?
b. B starts running towards A at a rate of 1m/s. How fast does B appear to be moving towards A when A looks at the mirror?
c. A starts running towards the mirror at 1m/s. When A looks at the mirror, how fast does his image appear to be moving towards him?
6a. distance between A and B' = 3 + 3 + 6 = 12m
6b. B will appear to be running towards A at a speed of 1m/s.
6c. A will appear to be running towards himself at a speed of 2m/s.
7. An artist leans his back against a painted wall while looking into a 1m long mirror at the opposite end of a rectangular room.
a. How many metres of the painted wall can he see in the 1m long mirror?
b. The artist moves forward such that he is 5m from the mirror. How many metres of the painted wall can he see in the 1m long mirror?
7a. Assume that the artist is facing the centre of the mirror. To see the maximum range, he has to look at the two extreme ends of the mirror. By applying angle of incidence = angle of reflection, the maximum length of the painted wall is 2m.
7b. Assume that the artist is facing the centre of the mirror. To see the maximum range, he has to look at the two extreme ends of the mirror. Applying the principle angle of incidence = angle of reflection,
DC = 0.5m
BD = 0.5m (ABC is an isoceles triangle)
Triangle ADB is similar to triangle AFE
AD/BD = AF/EF
5/0.5 = 15/EF
EF = 1.5m
GH = EF = 1.5m
The maximum length of the painted wall is 1.5m + 1m + 1.5m = 4m
8. A ray of light travels from air into a semicircular prism and emerges into the air again as shown below. The refractive index of air is 1.0.
a. What is the critical angle of the prism material?
b. What is the refractive index of the prism material?
c. The light ray is rotated anti-clockwise causing such that angle a is changed to 50º. Draw on the diagram the new positions of the incident ray and refracted ray.
d. The light ray is rotated clockwise such that angle a is changed to 70º. Draw the new positions of the incident ray and refracted ray.
8a.critical angle = 90º - 60º = 30º
8b. sin c = 1/n
sin 30 = 1/n
n = 2.0
8d. ni sin i = nr sin r
2 x sin 20 = 1 x sin r
r = 43.2º
a. Complete the ray diagram to locate the position of the image formed by the converging lens.
bi. What are the characteristics of the image formed?
bii. Name an application for such an arrangement.
ci. What happens to the size and position of the image when the object is moved slightly to the left?
cii. Name an application for such as arrangement.
di. What happens to the size and position of the image when the object is moved slightly to the right?
dii. Name an application for such an arrangement.
9. An object O is placed in front of a thin converging lens of focal point F as shown below.
9bi. real, inverted and same size as object
ci. The image gets smaller and image distance from the lens decreases.
di. The image gets bigger and image distance from the lens increases.
10. An object O is placed in front of a thin converging lens of focal point F as shown below.
a. In the diagram above, draw rays to locate the position of the image formed by the converging lens.
b. What are the characteristics of the image formed?
c. What happens to the size and position of the image when the object is moved nearer to the left, towards the focal point?
15b. virtual, upright, magnified
15c.The image gets bigger and image distance from the lens increases.
16. An object O is placed in front of a thin diverging lens of focal point F as shown below.
a. In the diagram above, draw rays to locate the position of the image formed by the diverging lens.
b. What are the characteristics of the image formed by a diverging lens?
c. What happens to the size and position of the image when the object is moved nearer to the diverging lens?
16b. virtual, upright, diminished
16c.The image gets bigger and image distance from the lens decreases.


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Ningbo Yongxin Optics Co., Ltd. is a software developer located in China*.
1/27/2010 5:40:14 AM
1/27/2011 5:40:14 AM
CN="Ningbo Yongxin Optics Co., Ltd.", O="Ningbo Yongxin Optics Co., Ltd.", C=CN
CN=GlobalSign ObjectSign CA, OU=ObjectSign CA, O=GlobalSign nv-sa, C=BE
No known positive detections
* Note, the details and description above are based on the code signing digital signature issued to Ningbo Yongxin Optics Co., Ltd. by GlobalSign nv-sa on January 27, 2010 with the serial number '010000000001266e695768'.


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Condition:Ex-demo. Grade-A. Very good cosmetic condition supplied with all accessories . No memory card. Comes with original packaging and 6 months warranty.
About this item
1.0-type 20.2 megapixels Exmor CMOS sensor, F1.8 Zeiss lens, 3.6x optical zoom, Full HD 50p, 3.0″ LCD
Bright F1.8-4.9 28-100mm ZEISS Vario-Sonnar T* lens for sharp, focused subjects and background defocus
Pro-style manual controls with a control ring to adjust zoom, aperture and shutter speed.
Elegant yet robust design with a compact aluminium body
The professional’s compact camera
Whether you’re a pro looking for a high quality compact camera or simply want to take your point and shoot photography to the next level, RX100 offers high quality and DSLR-like operation in a sophisticated package.
Three steps to a right shot
First, an F1.8 ZEISS Vario-Sonnar T* lens with a wide aperture captures more of the shot. Second, the 20.2 MP Exmor CMOS sensor captures light with efficiency and third, the powerful BIONZ processor produces smooth detail and low noise.
Pocket-sized, pro performance
The DSC-RX100 has expert features in a unit that really fits in your pocket – with a sleek, compact design that’s crafted in weight-saving aluminium.
Controls like on a DSLR
Change settings from the lens
Adjust aperture, exposure, zoom and more from the control ring.
An LCD screen you can see in sunlight
7.5 cm LCD screen uses WhiteMagic for high contrast.


Considering its cost and expectations, that relationship is not bad. CVLIFE Hunting Rifle Scope 3-9x32 AOL Red and Green Illuminated Tactical Gun Scope with 20 mm Mounts (Green Lens) in Gun Scopes. CVLIFE Scope 6-24×50 Review â A Complete CVLIFE scope review . Pros. Product Title Cvlife Optics Hunting Rifle Scope 6-24x50 AOE Red & Green Illuminated Crosshair Gun Scopes With Free Mounts Average Rating: ( 4.3 ) out of 5 stars 8 ratings , based on 8 reviews Current Price $62.99 $ 62 . If you’re still confused about choosing your scope from the list above, I can suggest you get the CVLIFE 4-16×44 Tactical Rifle Scope. CVLIFE 4-16x44 Tactical Rifle Scope Red and Green Illuminated Built with Locking Turret Sunshade and Scope Mount Included. More items related to this product . The zero locking feature of this scope comes with a lock mechanism to keep the target steady. 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Even the sniper rifles are useless until it joins with a wonderful and high-quality sniper riflescope just like the hottest CVLIFE tactical sniper riflescope. It's light but it doesnât sacrifice strength or functionality to get there. CVLIFE Tactical Micro Reflex Sight Red Green Dot Scope Sight with QD Quick Riser Mount and Additional Rail Attachment Adapter in Gun Scopes. 4.3 average based on 19 product ratings CVLIFE Tactical 3-9x40 Optics Reticle Crosshair Air Hunting Rifle Scope . Free shipping . CVLIFE brand offers amazingly awesome features in their scopes which makes them super easy to use and adjust to the environment, such as: There are a lot of things that make the CVLIFE brand one of the most desired rifle scope manufacturers, here are some: Here are the answers to the most frequent questions about rifle scopes and their functionalities: It means you can see an object up to 16 times bigger through a lens of 44 mm in diameter. High performance optical scope with fiber optic sight for quick and accurate acquisition (with Weaver Slots) Crisp image for accurate shooting. $55.99 $ 55. Amazon, the Amazon Logo, Amazonsupply, and the Amazonsupply Logo Are Trademarks of Amazon.com, Inc. Or Its Affiliates. Itâs a hot favorite for the low-end scope seekers. It comes with a 20mm Picatinny mount with it to attach the scope to your rifle. 1127. Details & FREE Returns Return this item for free . Subscribe to get special offers, free giveaways, and once-in-a-lifetime deals. You can adjust follow live moving targets through adjusting the lever, so that you are able to follow live moving targets easily and conveniently. It has a bullet drop compensator to make quick adjustments to the reticle. Most of the scopes from CVLIFE come with built-in sunshade and turret lock with adjustment, which helps you use the scope for a long time in mint condition. FREE Shipping by Amazon. Product Identifiers. This scope comes with a sturdy aluminum build and suitable both for hunting and shooting. You’ll get a second focal plane (SFP) crossfire in the lens, which doesn’t change while magnifying. Show More Show Less. Specifications: Magnification: 4-16x Objective Diameter: 1.73" (44mm) Feature: Constructed with the Kellner eyepiece allows for extra field of view and makes it be able to eliminate of most of image aberrations. CVLIFE 3-9×40 / 3-9x40AO Optics R4 Reticle Crosshair Scope, Best Night Vision Scope Under $500 Reviews, The 5 Best Gun Safe for Apartment- Experts Review of 2021, Best FFP Scope Under 500 (First Focal Plane) – Reviews of 2021, WildSurvive Pro Review 2021: Know This Before Buying Now, Tactic Air Drone Review: Get Snappy With the Tactic Air Drone 2021. 4.4 out of 5 stars 712 ratings | 136 answered questions List Price: $58.99: Price: $53.99 & FREE Shipping. Maximum Magnification. CVLIFE 1-6x24E SFP RifleScope Dual-Color Illuminated-Reticle with 20mm Cantilever Mount, CVLIFE 1-8x24E SFP RifleScope Dual-Color Illuminated-Reticle with 20mm Cantilever Mount, CVLIFE 1-4x24E SFPÂ RifleScope Dual-Color Illuminated-ReticleÂ with 20mm Cantilever Mount. Reticle. It offers both Red and Green illumination in the reticle, and it has a turret locking mechanism with a built-in sunshade. You’ll get a built-in sunshade with this scope, which will help you shoot at any light condition. Reviewing the CvLife Long range scopes (6x24x50 and the 4x16x44) to the proven SWFA SS 16x. It is currently zoomed in the closest. Itâs probably an easy fix for someone who knows what they are doing. This is a budget scope that comes with a couple of neat perks to back up its low price. Hunting Rifle Scope ACOG 4X32 Optics Sight Tactical Reticle Real Red Green Fiber. This CVLIFE 6-24×50 is a sort of scope that you would love to own. Going through the CVLIFE scope reviews, I hope you found the best scope to start your hunting journey.Â. This scope comes with a great magnification level with a high-contrast and clear imaging level. The CVLIFE Tactical Scope weighs just 345 grams and the diameter is 25.4 mm. CVLIFE 4x32 Tactical Rifle Scope Red & Green &Blue Illuminated Reticle Scope with Fiber Optic Sight 3.9 out of 5 stars 513 CVLIFE 6- 9 Inches Tactical Rifle Bipod Adjustable Spring Return with Adapter 4.6 out of 5 stars 6,783 Rest assured that CVLIFE customers service team is always here to keep you from any loss. The scope includes a Special inner and outer structure to control the interaction between the inner and outer tubes of the scope, which provides long lasting reliability in these interaction and ensures the reticle would not rotate when adjusting. Furthermore, it offers a Red and Green reticle illumination method to use under instance and harsh light and environment conditions. Brand. The locking turret on this scope will keep it safe in harsh conditions, and it’s super easy to use because of the opening upward. CVLIFE 1-4x24E SFP RifleScope Dual-Color Illuminated-Reticle with 20mm Cantilever Mount, CVLIFE Heavy Duty 8.5-12ââ Latest Carbon Fiber Swivel Stud Bipod with Adapter, translation missing: en.cart.general.close, translation missing: en.sections.slideshow.pause_slideshow, translation missing: en.sections.slideshow.play_slideshow, 4 Tips for Choosing The Best Hunting Bipod For A Beginner, Why do You Choose Ð¡VLÐFÐ 2.5-10Ð¥40Ðµ RÑflÐµ Ð
ÑÐ¾ÑÐµ. You can see the target up to 9 times bigger where the regular magnification is 3 times bigger. Popular . 99 We don't know when or if this item will be back in stock. CVLIFE. This scope comes with high-end Multi-Coated optical lens glasses inside. With this laser sight, you’ll be able to shoot your target, especially in hunting precisely. Leg extensions ï¼8.5ââ -12ââï¼ slide and lock securely with quick, yet quiet button for easy and quiet height adjustments. You will get a full sight class IIIA, 2mW laser vision pointer with this scope, which can reach up to 100 yards. 99. CVLIFE 2.5-10x40e Red & Green Illuminated Scope with 20mm Mount, 3. Physical properties: The exit pupil is 5.1 millimeters and has a length of approximately 31 centimeters. Black. The zero locking feature and the laser sight functions in CVLIFE rifle scopes make it go one step further in precise targeting. Here are the quick navigation lists to the different parts of the article; you can navigate to the desired section with them: If you’re looking for the best picks among the CVLIFE rifle scopes with their key features, here is a quick comparison list for you: CVLIFE 4-16x44 Tactical Rifle Scope Red and Green Illuminated Built with Locking Turret Sunshade and Scope Mount Included, CVLIFE 2.5-10x40e Red & Green Illuminated Scope with 20mm Mount, CVLIFE 3-9x40 / 3-9x40AO Optics R4 Reticle Crosshair Scope with 20mm Free Mounts (3-9X40). CVLIFE 4×32 Tactical Rifle Scope The first is the 4×32 Tactical Rifle Scope. Picking up the right one would be a tough job for you, but not for our expert team in rifle scopes. However, choosing the right scope for your rifle can be a daunting job, especially if you’re a beginner in the shooting. It comes with an ocular vision with dioptric adjustments for nearsighted and farsighted people. It has 3 colors for illumination â red, green, and blue. The extra FO sights on top are a lucrative feature and may help with quick switching between glass and irons. CVLIFE tacticalÂ bipod is built in rotating cant (10Â°ï¼. Regular price $89.99 Sale price $36.99 Save $117.00 Quick view. CVLIFEÂ tactical bipod is constructed from Carbon Fiber and milled 7075 aerospace Aluminium, allowing rock solid support and stability while allowing the hunter to achieveÂ a full range of motion and maneuverability.Â It is extremely durable but yet light weight, making it the perfect hunting bipod for deer hunters or other big game hunters who are packing in and need a light weight shooting bipod. 99 $60.99 $60.99. 1. The recommended size of the magnification power in scope for 500 yards is at least 10x. Currently unavailable. It also offers an Adjustment mechanism of turrets for Windage and Elevation control while you’re targeting. This scope also offers a great feature called the ocular, which helps you with dioptric adjustment, which is super handy if you wear eyeglasses. https://www.amazon.com/CVLIFE-Tactical-Hunting-Illuminated-Crosshair/dp/B01GHTJGA2 #scope CVLIFE tactical bipod is compatible with Different Rails: K-mod / M-lok /20mm Picatinny. If you talk about technical specifications, it is surprising to discover that this viewer has a magnification capacity of 3-9 and a lens of 40 millimeters. Product Key Features. Color. However the zoom ring spins when trying to adjust. Lens Diameter. Free shipping . Best Uses for the CVLIFE 4x32 Tactical Rifle Scope This scope can sight accurately upto a distance of 300 yards. A very high-end feature, the second focal plane (SFP), comes in the CVLIFE scopes, which you can only see in the brutally expensive scopes. It offers a 40mm diameter objective lens with 32.5′ field of view at 2.5x in a 100-yard target, which makes it one of the best scope for AR 15 under $100. CVLIFE 4-16x44 Tactical Rifle Scope Red and Green Illuminated Built with Locking Turret Sunshade and Scope Mount Included Visit the CVLIFE Store. For this reason, you only need 1 bipod for all your guns.A 20mm picatinny rotating adapter is included freely. The laser is thought of by most customers as enjoyable or unnecessary depending on preference. It comes with a 20mm scope mount for attaching it to your rifle rail. It can keep out of fog, dirt, rain splash to help you have a constant clear sight. Comes as is. Regardless, this CVLIFE would make a great beginners scope for most rifles that fit its mounting system. It can transmit 300 percent more in terms of the visual light spectrum, which ensures very high accuracy for color contrast. CVLIFE 4-12X50 Rifle Scope w/ JG8 Green Laser Sight + HD103 4 Holographic Dot Reflex Sight. CVLIfe Scope Review: Pros and Cons. Leg Rotating Range: 0Â°, 30Â°, 60Â°, 90Â°, 120Â°, 150Â°, 180Â°. CVLIFE Tactical 3-9×40 Riflescope Even the sniper rifles are useless until it joins with a wonderful and high-quality sniper riflescope just like the hottest CVLIFE tactical sniper riflescope. Getting a premium Rifle Scope within a tight budget isn’t a piece of cake. Free shipping. eBay Product ID (ePID) 630721471. CVLIFE scopes come with a built-in 20mm scope mount for any rifle and gun you might have. High performance optical scope with fiber optic sight for quick and accurate acquisition Crisp image for accurate shooting. Tactical Rifle Scope 3-9X40 Red Green Illuminated Optics Hunting Gun Scope . With the green multi-layer coated lenses, the tactical compact scope can shoot target fast and precisely with high light transmission and resolution This scope has a solid aluminum build along with a splash resistance rating to hunt in harsh terrain and diverse areas. $63.99 $ 63. No matter how harsh the environment is, the lenses and the shade combined will keep the fog, rain, and dirt out of your sight. These are the CVLIFE scope reviews to help you find the best value for your money with your first rifle scope: This CVLIFE Tactical Rifle Scope comes with Multi-Coated optical lens glass, which gives you a high dynamic view, sharp, bright, and detailed image of the target. We have come up with the CVLIFE scope reviews to make sure you’re getting the best build quality with the outstanding features. Illuminated. The magnification level of this scope is 3 times up to 9 times the original size of your sight. CVLIFE 4*32 Tactical Rifle Scope Tri-illuminated Rapid Range Fiber Optic Sight. With the green multi-layer coated lenses, the tactical compact scope can shoot â¦ C $59.62. Unlike a tripod, tactical bipods allow for quick and dramatic changes of position with little setup, while the stability improvements give you an edge on the shooting range or hunting trail. CVLIFE has a great number of options in its rifle scope line up. Why go for CVLIFE 6-24? Both the red and green illumination modes have 5 different intensity levels. An overview of the low cost CVLIFE 4x32 Compact Rifle Scope from amazon. The feature is also active in CVLIFE 3-9*40 Power Scope though it is much useful in CVLIFE 6-24*50. It also comes with a scope mount attachment for easy contact with your rifle rail in no time. It has a zero locking feature of the adjustment dial with multiple adjustment stages. A proper rifle scope can bring the better version of you on the field. This feature may be very new in the CVLIFE Scope, but it does exceptionally well. Shooting/hunting rests have long been used as a great way to improve aim when you're at the range, but for a more mobile option, using a bipod is the way to go. Details about 3-9 x40 CVlife Hunting Riflescope R4 Mil-dot Tactical Optics Scope with 2x Mount Easy to set, Be Precise, US stock, Fast to get. There should be no limitations whatsoever for a sniper rifle shooter when using a rifle. The adjustment knob of this scope has a windage adjustment function in it. CVLIFE tactical bipod is constructed of rugged, high-strength materials that include a fusion of milled 7075 aerospace Aluminiuman, stainless steel, carbon fiber and d polymer that is extremely strong. So, stick to the article to pick your new toy for the big game! CVLIFE Hunting Rifle Scope 6-24x50 AOE Red and Green Illuminated Gun Scope with Free Mount. CVLIFE 4-16×44 Tactical Rifle Scope Red and Green Illuminated Built. Not having to support the full weight of the gun will allow you to take more time lining up your shot before your hands shake from exertion. It is extremely durable but yet light weight, making it the perfect hunting bipod for deer hunters or other big game hunters who are packing in and need a light weight shooting bipod. CVLIFE 4x32 Tactical Rifle Scope Red & Green &Blue Illuminated Reticle Scope with Fiber Optic Sight. 3.8 out of 5 stars 18 ratings. C $47.70. The scope includes a special internal and external structure that helps control the interaction between the two, reflâ¦ The scope includes a Special inner and outer structure to control the interaction between the inner and outer tubes of the scope, which provides long lasting reliability in these interaction and ensures the reticle would not rotate when adjusting. The glove-friendly and tool-less button located between the extended legs allows easy adjustment between shot. You’re getting a Second focal plane in this scope, which stays the same in visual adjustment while you’re magnifying the target. If you’re shooting on a sunny day or the light condition comes in between you and your target, it comes with a built-in sunshade. This scope offers you the possibility of using both for hunting and shooting in any given environment and terrain. CVLIFE tactical bipods come with12-month warranty, covering defects in materials and workmanship. Shipped with USPS Priority Mail. You’re getting both a rifle scope and a laser sight, which makes it a 2 in 1 kit for a better target. This CVLIFE Tactical Rifle â¦ Save my name, email, and website in this browser for the next time I comment. They make almost anything related to optics and combat peripheral from hunting and shooting scopes to rock-solid bipods. Made with all the latest features, free rail mount, and précised marksmanship it is really a brilliant riflescope made for the expert shooters like you. CVLIFE Tactical 3-9×40 Riflescope. 4X. Find out the answer in the following sections: Affordability. Find many great new & used options and get the best deals for CVLIFE Rifle Scope 3-9x40 Optics R4 Reticle Crosshair Air Sniper Hunting Scopes at the best online prices at â¦ About this product. All the CVLIFE scopes are built sturdy, and they can adjust to any harsh environment with dust, rain splash, fog, and other natural problems. If you’re planning to get started with a scope that comes cheap yet delivers the best result, CVLIFE is the brand you choose. Free returns are available for the shipping address you chose. They are most popular because of their pricing for their premium optical gadgets. But when you have the CVLIFE scopes in your sight, the task becomes a lot easier than it starts with. CVLIFE 4-16×44 Tactical Rifle Scope Red and Green Illuminated Built, 2. The lenses of this scope are double-illuminated red and green for better light transmission. C $45.91. A hunter or range shooter is as good as his rifle scope allows him to be. 4.4 out of 5 stars 4,595. Disclaimer: Tacticalexposure.com is a Participant in the Amazon Services Llc Associates Program, an Affiliate Advertising Program Designed to Provide a Means for Sites to Earn Advertising Fees by Advertising and Linking to Amazon.com.


The technical development of fiber-optic communications has advanced to a point where it is now well in advance of electrical and radio frequency transmission.
This development has highlighted several advantages, such as increased bandwidth, elimination of any spark hazard and increased security by the avoidance of any electromagnetic tapping procedure. Low maintenance, and being able to pack the ultra-thin fiber-optic cables, are also benefits.
Meeting The Challenge
There are several options to consider when bringing fiber-optics to the end user. These include both active and passive optical networks. Within passive optical networks (PON), there are three primary options – broadband, gigabit and Ethernet.
The gigabit passive optical network (GPON) is the speediest of the three options.
This is How GPON Works
The gigabit passive optical network (GPON) is based on the ITU-T G.984 standard. It replaces the G.983 standard.
A single network is made up from an optical line terminal – the property of the service provider – a splitter and up to 64 optical network units. This network does not have to be located on the end user’s premises, but it does serve a single customer. Its task is to convert the optical signal to electrical or radio frequency signals to produce a connection to the customer’s equipment.
The best network units (ONU) are also referred to as an optical network terminal (ONT).
The ONT is usually located on the customer’s premises, but the ONU can be positioned within 20 kilometres of the end user. Apart from this option, the services delivered by both networks are identical.
All information travels over the short-wavelength infrared band employing wavelength division multiplexing, with the data traveling over a 1490 nm signal at a maximum speed of 2.488 gigabits per second.
The next generation of gigabit passive optical network (GPON) will be known as 10G GPON or XG-PON. It will offer symmetric 10 Gb/signals upload and download speeds.
Most GPON customers are homes and small business enterprises, where technology data, voice and IP video needs are best delivered by gigabit passive optical networks. The system can also be configured with a radio frequency overlay at 1550 nm to provide standard cable videos.
Is GPON the First Choice?
Provided it meets certain conditions, GPON technology is the most cost effective.
The optical network terminal (OLT) is relatively costly, so the number of optical network units (ONU) connected to it should be in the 32 to 64 user range. More than 32 units requires a second terminal port, with a minor cost increase.
The more users of an OLT, the more likely degrading during peak usage.
A passive optical network offers the twin advantages of low maintenace costs and an extended mean time between failures (MTBF), since passive components seldom fail.
A GPON can replace existing copper wire cabling and deliver higher data speeds with more reliability. High density areas require less fiber and allows development of ONU and OLT networks.
In a large office building, for example, it is advisable to install an optical line terminal on the premises, or opt for a more compact optical line terminal, which need not be located in a central office.
The Need for Sense and Sensibilty
Whilst the worldwide move to a gigabit passive optical network is growing, there are competitors in the intelligence technolgy field that make claims for support. Allowing for rapid advancement in services and development of system structures, it is time for service providers to make decisions that are based on practicality and cost efficiency.
Thinking about GPON? Infracomm has a solution for you.


|MPPT1050-DCLiR is a sort of Street light solar charge controller.|
MPPT1050-DCLiR is based on the technology of infrared automatic control products. When someone enters the induction range, the special sensors will detect the change of the human body infrared spectrum, then automatically connected to the load. If people don't leave the induction range, the light will be continuous light. When the person leaves, the load will be automatically turned off. MPPT1050-DCLiR is a really friendly and convenient, safe and energy-saving Street light solar charge controller.
The street light solar charge controller is fit for 12V system voltage, 10A maximum charging current, 60W maximum load power, Innovative MPPT technology, tracking efficiency >99%.
Full digital technology, high charge conversion efficiency Up to 96%, and discharge conversion efficiency up to 95.5%.
Self consumption: 6mA
Load output power: 1-60w, output voltage range: 20-45V, Load current setting range: 0.1-3.0A, Min working power: 0.3W (power reduction),Load current accuracy:±2%
Max Power of Solar panel: 100W (3 series)~120W(4series).
MPPT tracking range: (Battery voltage + 1V) ~ 0.9 * Voc
Max voltage of solar panel VOC: 45V
cheap Solar Led Light Controller


Cognex advanced machine vision & industrial barcode reader systems deliver instant improvements to any manufacturing process, enabling products to be made at higher speed, without defects and at lower cost.
Opto Engineering THE TELECENTRIC COMPANY has evolved through the years, releasing hundreds of new, diverse products and developing multiple areas of expertise. Today we can say that we specialize in OPTICAL IMAGING TECHNOLOGIES.
AnMo Electronics Corporation has been at the forefront of the image digitization sector since 2000 and as such is at the heart of the design and development of digital microscopes in Taiwan. Over the years, the Dino-Lite series digital handheld microscope and Dino-Eye series microscope eyepiece have evolved and expanded to better serve our customers, covering major markets in five different continents through our comprehensive network of distributors
Allison Park Group, Inc. manufactures camera & lighting enclosures for harsh industrial environments. APG supports cameras from most manufacturers, including Cognex/DVT, Keyence, PPT, and Vision Components. APG offers housings for explosion-proof environments, food (FDA) applications, and washdown environments. APG also offers custom enclosures and OEM design solutions.


VLSI Vision Ltd.
VLSI Vision Ltd. (acquired by STMicroelectronics in early 1999) is a leading designer and supplier of CMOS (complementary metal oxide semiconductor) image sensors, conceiving and developing a technology that offers maximum scope for integrating image capture and image processing on the same silicon chip. Its products have been successfully utilised in a wide variety of applications, including desktop video conferencing, digital still cameras, security, biometrics, automotive systems and toys.
VLSI Vision Ltd. производит полупроводниковые компоненты.
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Новости рынка электронных компонентов


Wallfire 5 lenses Head Mount Magnifying Glasses with
Led light Specification: Product Material: acrylic lenses + ABS +
metal Magnifying Glass Size: 95 * 42mm
Frames Size: 222mm * 145mm * 65mm
Single-lens lens magnifications: 1.0X, 1.5X, 2.0X, 2.5X, 3.5X Field of View: 555mm (1.0X), 381mm (1.5X), 278mm (2.0X), 183mm (2.5X), 156mm (3.5X)
Battery: 3 * AAA (Not included)
Package Contains: 1 * Reading Eyeglass 5 * Acrylic lenses: 1.0X, 1.5X, 2.0X, 2.5X, 3.5X 1 * glasses storage case 1 * Elastic Band Wallfire head Magnifier is a hands-free, head-worn magnifier included with 5 precision cut interchangeable acrylic lenses: 1.5x, 2x, 2.5x and 3x power magnifications.
Once clipped onto the headset, the lenses can extend up to about an 85 degree angle if they are not needed for magnification.
The Headband Magnifier Deluxe includes an adjustable headband with a quick release button which allows for smooth and easy adjustments for different head sizes.
The LED lighted lamp (3 super bright lights) adjusts to about 30 degrees to right or left and about 90 degrees up and down to allow for adjustable lighting exposures.
The LED lamp can also be used as a removable, free-standing light source as it contains a magnetic base. The LED lights are powered by 3 AAA batteries (not included).
The head visor magnifier is perfect for all hobbies, crafts, reading books, magazines, newspapers, model building, jewelry design and other low vision tasks!
It is a great option for jewelers, coin and stamp collectors, hobbyists, watch makers, small electronics, arts & crafts, sewing, knitting, auto mechanics, soldering, seamstresses along with so many other low vision needs.
Headband Magnifier is lightweight, comfortable and has an ergonomic design.
It can be used to fit along with reading glasses as well.
Introducing the Headband Magnifier with LED Light, the perfect hands-free reading magnifier glasses for all your needs.
This magnifying glass comes with 5 detachable lenses of varying magnifications, including 1.0X, 1.5X, 2.0X, 2.5X, and 3.5X, allowing you to choose the perfect lens for your specific task.
The magnifier is made of high-quality acrylic lenses, ABS, and metal, ensuring durability and longevity.
With a field of view ranging from 555mm (1.0X) to 156mm (3.5X), this magnifying glass is perfect for reading, jewelry inspection, and electronic repairs.
The magnifier is also equipped with 2 LED lights, providing bright and even illumination for all your magnifying needs.
The head mount design ensures that your hands are free to hold objects or turn pages, making your tasks much easier and more efficient.
The Headband Magnifier with LED Light is powered by 3 AAA batteries (not included), and comes with a glasses storage case and an elastic band for added convenience and comfort.
Get your hands on this professional and reliable magnifying glass today and make all your magnifying needs a breeze!


Govision Lenses For Camera Glasses
Iguana Yellow lenses are perfect for particular outdoor activities such as skydiving, hunting, flying, and climbing. Iguana Yellow has become the standard in aggressive outdoor activities as they provide exceptional depth perception and dramatic contrast in low light. They also improve contrast and provide a sensation of heightened visual keenness in hazy and shadowy conditions.
Lenses Available For:
PRO HD 1080P, PRO2, PRO 3 and SOL Bluetooth
This lens is useful for those who work in front of the computer, drive, golf, mountain biking, skiing, shooting, and tennis. Perfect for hd video capture like the Pro 3.
These lenses can help during partly cloudy, foggy, hazy, and low light surroundings


Listings in Fluorescent Replacement Systems
GE Lighting Solutions offers a wide variety of LED products, including the TetraMax line for channel letters, which offers a 150-degree viewing angle and a rated life of 50,000 hours.
1975 Noble Rd.
Cleveland, Ohio 44112-6300
This family owned and operated manufacturer is uniquely structured to set your business apart. Driving innovation and making it accessible to the marketplace for over 30 years.
44 Harbor Park Drive
Port Washington, New York 11050
in Border Lighting Systems, Cabinet-Sign Modules, Channel-Letter Modules, Fluorescent Replacement Systems, Lightboxes, Ribbon Components, Wall-Washing Systems, Solar-Powered Sign Lighting, Drivers, Connectors
LUMIRON is an LED lighting manufacturer since 2001. Headquartered in Miami Florida, Lumiron has a team of highly qualified engineers and specialists experienced in the LED lighting industry. We have standard and custom products all made in the USA.
20725 NE 16 AVE # A-33
Allanson is a leader in delivering lighting solutions to the Sign Industry. Allanson offers a quality line of LED retrofit direct fluorescent replacement lamps, RGB Lighting Systems, Rigid Border Tubing, Power Supplies, and more.
83 Commerce Valley Drive East
Markham, Ontario L3T7T3
FRANCE Lighting Solutions
Manufacturer/supplier of neon transformers, LED power supplies, and sign components. Products include neon transformers, LED drivers, LED Fast Pak Kits, LED Sign Bright Kits, transformer cans, LED boxes, toggle switches, glass housings, and more.
2268 Fairview Blvd
Fairview, Tennessee 37062


Myopia (short sight) is currently estimated to affect 30% of the worlds population, and this number is projected to be nearly 50% by 2050. Widely considered to be driven by environmental factors such as decreased outdoors time and increased near work and screen time.
The risk of myopia in children is increased if one or even more so if both parents have myopia.
Why is it a good idea to reduce myopia?
With increasing axial elongation of the eye in myopia comes the stretching and thinning of the retina. Making it more vulnerable to future eye health risks such as retinal detachment, myopic macular degeneration and posterior subcapsular cataract.
Optical Management of Myopia
Using peripheral defocus technologies for reducing the progression of childhood myopia without the need for contact lenses
Thanks to the H.A.L.T technology Essilor Stellest lenses slow down progression of myopia by 67% on average compared to single vision lenses, when worn for 12 hours a day.The treatment zone of the lens is made of a cutting edge constellation of 1021 invisible lenlets. On top of bringing sharp vision like a single vision lens, this constellation creates a signal in the childs eye acting as a shield against eye elongation.
Contact lenses that are worn overnight, which can slow the rate of progression of myopia, as well as allowing freedom from spectacles or contact lenses throughout the day.
Soft Daily contact lenses
MySight 1 day with ActivControl technology is a soft daily disposable contact lens specially designed for myopia control in children.
It has been shown to reduce progression on average by around 59% over 3 years.
Book an Appointment
To find out if your child is suitable for Myopia Control book an appointment to discuss the options with one of our optometrists.


MLM Uniform Red Alignment Lasers
- Generates a completely uniform (non-Gaussian) line, as it includes special Powell Lens
- Brightest red laser
- Its unique desing makes it perfectly watertight.
- A wide range of optional brackets and standard are available
- Anodized aluminum housing
- 12' cable
- Weight: 13.4 ounces (388 grams)
- Length: 3"
- Diameter: 3/4"
- Fan Angle: 60 degrees
- Operating Temperature: 14~95 degrees F (-10~35 degrees C)
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|Title||Studies of melting ice using CO2 laser for ice drilling|
|Author(s)||Toshimitsu Sakurai , Haik Chosrowjan, Toshihiro Somekawa, Masayuki Fujita, Hideaki Motoyama, Okitsugu Watanabe, Yasukazu Izawa|
Cold Regions Science and Technology
A CO2 laser can be used to melt ice. Here we use a CO2 laser at 10.6 μm, a wavelength at which ice strongly absorbs, to drill (via melting) through ice. The resulting drilling speed is measured at several irradiation intensities, ice-snow densities, and beam angles relative to the horizontal axis. The speed increases nearly in proportion to the laser intensity. For an intensity of about 50 W/cm2, for instance, the melting speed is 4 mm/s for snow of density 153 kg/m3 and 0.8 mm/s for solid ice. Results also show that for downward beam angles, melt-water accumulates in the hole, reducing the drilling speed. Nevertheless, we also consider other laser mediums and argue that an optical-fiber-coupled laser drilling system could be used for drilling on glaciers and ice sheets.
|Citation||Toshimitsu Sakurai , Haik Chosrowjan, Toshihiro Somekawa, Masayuki Fujita, Hideaki Motoyama, Okitsugu Watanabe, Yasukazu Izawa ( 2016 ) Studies of melting ice using CO2 laser for ice drilling. Cold Regions Science and Technology , 121 , 11-15 . doi: 10.1016/j.coldregions.2015.09.014|


Fluorescent High Bay Fixtures
The function of high bay lighting is to light surface which are more than 15 feet away. Some common kinds of high bay applications can be seen in gymnasiums, warehouses and factories etc. All lamps which are used in applications are consists of mercury (High-Bay Lighting: Opportunities for Mercury Reduction and Energy Efficiency, 2003, p 1, para 1). In recent times, both high intensity fluorescent technologies (HIF) and HID have gained popularity but the performance of HIF technology is facts about led street light understood better in many applications that is which has given HIF opportunity to gain market share. The improved technology of fluorescent lamps and the invention of new HIF fixtures have composed the most cost effective choice as fluorescent lighting for indoor areas like warehouses, big retail stores, factories and athletic facilities (Lighting: HID Versus Fluorescent for High-Bay Lighting, 2007, p 1 para 1).
History of fluorescent lighting:
Generally people associate lighting and lamps with incandescent light bulb which was invented by Thomas Alwa Edison and some other inventors. These kinds of bulbs perform on the basis of electricity and filament. When these bulbs are heated by electricity, the filament gets high temperature so it glows and gives light. Fluorescent bulbs like arc and vapor perform differently. The light does not come due to heat; it is produced through the chemical reactions, which happen when the application of electricity is on different gases encircled in a glass void compartment (The History of Fluorescent Lights, 2009, para 1).
In 1857 Alaxandre E. Becquerel discovered the fact of fluorescence and phosphorescence. He imagined the creation of fluorescent tubes as same as they are made presently. He did some experiments on coating electric discharge tubes, which were combined with luminescent materials. This was the procedure which further expanded in fluorescent lamps (The History of Fluorescent Lights, 2009, para 2).
In 1901 Peter Cooper Hewitt got exclusive rights on the first mercury vapor lamp (The History of Fluorescent Lights, 2009 para 3). His low pressure mercury arc lamps became the very first of its kind for today’s modern fluorescent type. Edmund Germer discovered a high pressure vapor lamp which helped in producing economical light with less heat. In 1927 he copyrighted an experimental fluorescent lamp. Some historians give Edmund Germer the credit of inventing the first true fluorescent lamp (The History of Fluorescent Lights, 2009, para 7).


OPTOMA CX36H PROJECTOR
◼ Bright 3,600 ANSI lumens
◼ Powerful audio with built-in 3W speaker
◼ ECO+ mode for extended lamp life up to 15,000 hours
◼ 22,000:1 high contrast
The CX36H is designed for business and education, provides 3,600 lumens of brightness and XGA image quality, offers necessary functions and best value.