This instrument is used to measure the thickness of transparent and semi-transparent thin films via reflection or transmission spectroscopy. Films as thin as a few tens of nm can be measured when the UV light is turned on. An SOP will be coming soon.
This microscope can image in bright/dark fields. It can be used for simple imaging and also does Nomarski microscopy. Image capture is via a CCD camera.
This semiautomatic profilometer can be used for single and multiple scans. It provides data on a film thickness, or on a surface roughness and also allows 3D visualization of the scanned structures. It can moreover be used to measure stress of thin films.
This profilometer provides data on a film thickness or on the surface roughness/profile of the scanned structures.


Here at North Georgia Eye Care we provide extensive services to insure the health of your eyes. Eye care is more than just checking your vision. When we perform your eye exam, we also check for and monitor the following conditions: (click on a condition for a description)
North Georgia Eye Care continues to be at the leading edge of vision technology and advanced procedures. Our new Topcon Maestro helps to identify early signs of eye diseases like glaucoma and age related macular degeneration before the patient notices any changes in their vision.
This impressive technology scans both eyes in only 40 seconds to provide an OCT scan and a true color high resolution retinal image. The Maestro is just one of our many new pieces of technology added to our office in 2019 designed to gather accurate and meaningful data quickly. Call today to schedule your yearly eye health examination and add a detailed Maestro scan to aid screening for any diseases that may result in vision loss.


I think this line
How can we explain this phenomenon using ray diagrams?
is the issue. At first glance it makes it look like you are just asking for someone to make a ray diagram for you rather than asking about physics concepts here.
An easy fix could be something like
From ray diagrams it can easily be concluded that using a real object, we cannot get a real image from a plane mirror. But, if we shine a torch on the mirror we see a real image on the wall. Why does a real image form despite ray diagrams showing they do not form?
This puts the focus on understanding what constitutes a real image, and how they relate to ray diagrams.
It might also help to explain why you think it is a real image (and not just light reflecting off a surface), and maybe even your ray diagrams showing how real images do not form.


CIV ENGR 304: Remote Sensing Visual Image Interpretation and GIS Integration
- Catalog Description:
Introduction to the principles, equipment, and techniques utilized to interpret remote sensing imagery visually. Emphasis on airphoto interpretation in a range of application areas; visual analysis of non-photographic remote sensing data; introduction to computer-assisted image interpretation and GIS.
- Credits: 1
- Prerequisites: Civ Engr 301
- Engineering Moodle Courses on the Web (formerly eCOW)
- Create an Engineering Moodle Course Homepage (formerly eCOW2)


The Greenest Technology in Truck Lighting
Get all the facts on LED dock lights.
Not all LED lights are created equally. The LED Versa Light® provides Sustainability by Ensuring Quality and Performance for the Long Term – minimizing your cost of ownership.
Nothing lights up a trailer like a LED Versa Light® with our 10 LED head configuration. The LED Versa Light® effectively illuminates the ENTIRE INSIDE of an 8’ X 53’ trailer.
Other dock lights feature a 53’ beam of light with a spotlight quality; we focus on details like lighting up the sides too.
Longer Life – Our patented, fan-cooled design allows us to provide a light with superior output, 10 high intensity LED’s, and longer life LED’s – up to 85,000 hours.
Easy on the eyes – Specifically engineered to maintain the same color temperature as our halogen bulb Versa Light™
Suitable for food grade applications.
¡We will contact you!


Can you put new lenses in old frames?
In the previous article, we discussed “How long do plastic glasses frames last?”. In this article, let’s talk about “Can you put new lenses in old frames?”.
Eyes, glasses, and the frame are closely related.
In order to optimize the optical properties of the reprocessed glasses, the following alignment data will be recorded during lens matching. The distance between the center of the pupil and the center of the lens frame. The distance between the lower edge of the frame and the center of the pupil.The distance between the back surface of the lens and the most anterior point of the cornea.The angle between the surface of the lens and the vertical line of sight, and the horizontal line of the surface of the lens, and the angle of view between the two (curvature). Only in a few cases can an old custom lens be installed on the new frame. In the case of standard focusing lenses, the option of putting the old glasses in the new frame is most likely to work, as only the distance between the pupils is needed. In the case of a standard single-focus lens, the remaining alignment data is usually not needed.
Replacement of glasses frame is needed.
If we don’t want to change the lenses, but just want to change the frames, there is a very important requirement — the frames must be the same size, or the frames must be smaller. Since the size of the lens is already fixed, it is not possible to replace it with a large glass frame. So if you really don’t want to change the lenses, then at least make sure that the frame is the same, or wearing the glasses will be affected.
The state of the lens should be paid attention to.
Replacing the lenses or frames is not recommended. Try to replace the entire lens. The situation of the lens affects that whether it can continue to be used. If the new frame is really damaged, we can directly replace the frame and use the same frame, to ensure the effect at least. If the lens has serious scratches, or yellowing, oxidation, and other problems, then the lens will definitely be replaced at the same time. Lenses should not be badly scratched, since readjustment will put more strain on the surface of the lens, which will make the film of the old lens less durable.
The comfort level is not high.
The old lens is installed on the new frame, first of all, it is difficult to do. Even if they are reluctantly installed on the frame, a lot of optical systems of the lens will change, pupil distance, optical center, and so on. In addition, for people with astigmatism, it is even more impossible to change, because astigmatism has an axial position. If you polish your original lens, the axial position will change, and it will be more uncomfortable to wear. This is especially problematic if the older lens is a progressive lens. In this situation, the tolerance is even more limited because the progressive lenses have to correct nearsightedness, farsightedness, and presbyopia all at the same time, and achieving a clear vision of all distances between them. And the small error can make you uncomfortable to wear.
Thank you for your time in reading our passage “Can you put new lenses in old frames?”. For more information about sunglasses, please continue to follow post.koalaeye.com. Also, it is welcome to share and forward to Facebook and Twitter.


The VENTUS has been specially developed for sorting nuts and dried fruit, and is also ideal for frozen vegetables, berries and other small products.
This free-fall laser sorter is available in various scan widths, up to 1800 mm.
The VENTUS is a dual-sided, freefall laser sorter, especially developed for sorting nuts and dried fruit. It’s available in different scan widths up to 1800 mm, and its highly stable and reliable lasers are extremely accurate in sorting on the basis of color, shape, structure and biological characteristics. This results in optimal defect detection and an excellent good-to-bad ratio.
· widest double-sided free-fall laser sorter
· robust, advanced lasers
· excellent good-to-bad ratio
· sorting on the basis of color, shape, structure and biological characteristics
· superior resolution
· advanced sorting software using AI
· optimal flexibility and integration options
· perfect hygiene
· fast product switching
· 24/7 (remote) service


For mechanical testing instruments, a new non-contacting extensometer with integrated software is said to match or exceed the performance of traditional contacting extensometers. The Advanced Video Extensometer (AVE) from Instron Corp., Norwood, Mass., uses a high-resolution digital camera and real-time image processing to make precise strain measurements on material test samples. Because it is non-contacting, it has no influence on the specimen and eliminates the possibility of damage due to energy release at failure. Having no moving parts, it suffers no mechanical wear that could lead to unreliable results. AVE is available with three fields of view and transverse-strain measurement.
825 University Ave. Norwood, MA 02062-2643
Phone (781) 828-2500 Fax (781) 575-5725


Views: 14 Author: Site Editor Publish Time: 2023-09-29 Origin: Site
If you encounter the problem of font deformation during laser marking work, you can try the following methods to solve it:
Adjust the driven wheel. If the driven wheel on the left side of the X-axis is worn, you can try to replace it with a new driven wheel to restore it to normal.
Tighten the screws. If the fastening screws between the X-axis motor and the pulley are loose, you can tighten the screws to solve the problem.
Replace the motor. If the X-axis motor fails, consider replacing the motor to maintain normal marking work.
Adjust tension. If the belt tension on the left and right sides of the Y-axis direction is inconsistent, you can adjust the hexagonal screw at the rear end of the Y-axis until the tension is consistent to ensure the consistency of the marking font.
Product Positioning. If the product positioning is unstable (not placed smoothly or too loosely), or the product and machine are touched during the marking process, the product position can be readjusted to ensure its stability.
If the problem of font deformation still exists after trying the above methods, it is recommended to contact professional technicians for further inspection and repair.
Hot tags: fly laser, laser marker, fiber laser marking, fiber laser marking machine, fiber laser marking machine price, fiber laser marking machine 20w, fiber laser marking machine 30w, 50w fiber laser engraving machine, fiber laser engraving machine for sale, fiber laser engraving machine price, fiber laser engraver machine for metal


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[en] This paper reports the microwave hydrothermal synthesis and infrared to visible upconversion luminescence of Er3+/Yb3+ co-doped Bi2MoO6 nanopowder. Crystal structure, morphology and chemical composition were analyzed by means of X-ray Diffraction, Transmission Electron Microscopy and Raman Spectroscopy. Upconversion luminescence properties were studied in detail. The infrared to visible upconversion luminescence has been investigated in Er3+/Yb3+ doped Bi2MoO6 with different Yb3+ concentrations. Intense green and red upconversion emissions around 532, 545, and 655 nm corresponding to the 2H11/2, 4S3/2, and 4F9/2 transitions, respectively, to the 4I15/2 ground state were observed when excited by CW laser radiation at 980 nm. The effect of Yb3+ on the upconversion luminescence intensity was analyzed and the upconversion luminescence mechanism was explained in terms of the energy transfer process. From this study, it confirms that the like fluorides, and germinate glasses, metal oxide nanoparticles could also be a potential host to achieve desired upconversion luminescence. -- Highlights: • Er3+/Yb3+ co-doped bismuth molybdate nanopowder was successfully synthesized. • Infrared to visible upconversion luminescence was observed at 980 nm excitation. • Green and red emissions at 532 nm, 546 nm and 656 nm were investigated. • Bismuth molybdate could be a potential host material for upconversion luminescence
[en] Mesoporous spherical Yb–Er-doped nanoparticles were prepared by sol–gel method. The structure and morphology of the nanoparticles were characterized using Raman, Fourier transform infrared spectroscopies, transmission electron microscopy and by low-temperature adsorption. It is shown that both anatase (tetragonal) and brookite (orthorhombical) phases are present in the titania nanoparticles. Their diameter size is between 12 and 15 nm and an average surface area of 136 . Under infrared irradiation, the nanoparticles show luminescence by an upconversion process of the ytterbium and erbium ions, the green emission corresponds to transition and for the red emission, the transition energy is: –. The green and red photoluminescence intensities are highly dependent on the OH amount, which is produced during the hydrolysis and condensation processes and depends on the reaction time, nanoparticles wash and annealing temperature. The influence of synthesis parameters on the properties of porosity and luminescence was studied by the Plackett–Burman experimental design.
[en] In this work, poly(methyl methacrylate) (PMMA) thin films and a polymer optical fiber doped with pyrromethene (PM-567) were fabricated and characterized. The obtained films were uniform and homogeneous in its central zone and no aggregation of dye molecules were observed. UV–vis absorption, photoluminescence spectra, lifetime and photodegradation were measured for the fabricated films. Peak intensity and position of the photoluminescence spectra were dependent on the pyrromethene concentration. A resonant energy transfer mechanism is proposed as the main process associated with this behavior. Photodegradation results were well fitted by a gamma probability density function. While thin films were highly degraded under 405 nm excitation, the studied optical fiber displayed a much more stable behavior, presumably related with its construction design based on a transparent core and a thin PM-567 doped cladding.
[en] In this paper, we report the microwave hydrothermal synthesis of Er3+/Yb3+ co-doped Bi2MoO6 upconversion photocatalyst. Crystal structure, morphology, elemental composition, optical properties and BET surface area were analyzed in detail. Infrared to visible upconversion luminescence at 532 nm and 546 nm of the co-doped samples was investigated under excitation at 980 nm. The results revealed that the co-doping of Er3+/Yb3+ into Bi2MoO6 exhibited enhanced photocatalytic activity for the decomposition of rhodamine B under simulated solar light irradiation. Enhanced photocatalytic activity can be attributed to the energy transfer between Er3+/Yb3+ and Bi2MoO6 via infrared to visible upconversion from Er3+/Yb3+ ion and higher surface area of the Bi2MoO6 nanosheets. Therefore, this synthetic approach may exhibit a better alternative to fabricate upconversion photocatalyst for integral solar light absorption. - Graphical abstract: Schematic illustration of the upconversion photocatalysis. Display Omitted - Highlights: • Er3+/Yb3+ co-doped Bi2MoO6 upconversion photocatalyst is successfully synthesized. • We obtained the nanosheets having high surface area. • Upconversion of IR to visible light was confirmed. • Upconversion phenomena can be utilized for effective photocatalysis
[en] In this paper we report the infrared to visible upconversion luminescence properties of Er"3"+/Yb"3"+ co-doped BaMoO_4 nanocrystals synthesized via microwave assisted sol–gel processing route. Structural, morphological and upconversion luminescence properties were investigated by X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), UV–vis diffuse reflectance spectroscopy (UV–vis DRS) and Upconversion Photoluminescence spectra analysis. Results revealed that the oval shaped BaMoO_4 nanocrystals ranging in size from 40 to 60 nm having tetragonal scheelite crystal structure were obtained by sol–gel route. The infrared to visible upconversion luminescence has been investigated in Er"3"+/Yb"3"+ co-doped in BaMoO_4with different Yb"3"+ concentrations. Intense green upconversion emissions around 528, 550 nm, and red emission at 657 nm corresponding to the "2H_1_1_/_2, "4S_3_/_2, and "4F_9_/_2 transitions, respectively to the "4I_1_5_/_2 ground state were observed when excited by CW laser radiation at 980 nm. The green emissions were greatly enhanced after the addition of sensitizer (Yb"3"+ ions). The effect of Yb"3"+ on the upconversion luminescence intensity was analyzed and explained in terms of the energy transfer process based. The reported work establishes the understanding of molybdates as an alternative host material for upconversion luminescence. - Graphical abstract: Infrared to visible upconversion luminescence of Er"3"+/Yb"3"+ co-doped BaMoO_4 nanocrystals. - Highlights: • Nanocrystals were synthesized by microwave assisted sol–gel processing route. • Strong green emissions were observed in Er"3"+/Yb"3"+ co-doped BaMoO_4 nanocrystals. • Provides an insight on Upconversion luminescence properties of oxides host materials
[en] The tellurite fibers based on glasses with the composition TeO2–WO3–Nb2O5–Na2O–Al2O3–Er2O3–Yb2O3 were fabricated by the rod-in-tube technique using a Heathway drawing tower. The upconversion luminescence of Er3+/Yb3+ codoped tellurite glass fibers under 980 nm excitation were investigated. The Er3+/Yb3+co-doped tellurite fibers show an efficient up-conversion process in comparison with the Er3+-doped tellurite fibers. The pump power dependent intensities were discussed, which showed that two photons are involved in the upconversion process. - Highlights: ► We fabricate Er3+/Yb3+ codoped TeO2–WO3–Na2O–Nb2O5–Al2O3 glass fibers. ► We evaluate the upconversion luminescence of these tellurite fibers. ► The pump power dependent intensities were discussed. ► The Er3+/Yb3++co-doped tellurite fibers show an efficient upconversion process. ► We show that two photons are involved in the upconversion process.
[en] Spectroscopic characterization of Er"3"+/Yb"3"+ co-doped tellurite glasses 70.8TeO_2–5Al_2O_3–13K_2O–(11−x)–BaO–0.2Er_2O_3–xYb_2O_3, where x=0, 0.4, 0.8, 1.2 and 2 mol% has been carried out through X-ray diffraction, Raman, absorption and luminescence spectra. The Judd–Ofelt intensity parameters were calculated for 0.2 mol% Er"3"+-doped glass and are used to evaluate radiative properties such as transition probabilities, branching ratios and radiative lifetime. The emission cross-section of the "4I_1_3_/_2→"4I_1_5_/_2 transition has been calculated from the absorption data using McCumber's theory. The emission intensity of both, visible and infrared signals as a function of Yb_2O_3, have been studied under 980 nm and 375 nm laser excitation. The physical mechanisms responsible for both, visible and infrared signals in the tellurite samples have been explained in terms of the energy transfer and excited state absorption process. The FWHM of the "4I_1_3_/_2→"4I_1_5_/_2 transition as a function of Yb_2O_3 mol% and distance (δ) between the laser focusing point and the end-face of the glass has been reported. It was observed both, experimentally and numerically, a change in the FWHM with variations of δ less than 8 mm. The latter was attributed to the radiation trapping effect. - Highlights: • Er"3"+/Yb"3"+ co-doped tellurite glasses were fabricated by the melt-quenching technique. • The structural, thermal and optical properties of the tellurite glasses were studied. • The radiation trapping effect has been observed in small tellurite glass samples. • Tellurite glasses could be a potential material for fiber fabrication
[en] Both preform and polymer optical fiber with a Poly(methyl methacrylate) core and THV–Rhodamine 6G cladding were characterized. UV–vis absorbance, photoluminescence spectra and lifetime of the preform were measured. Axial and lateral photoluminescence spectra of the polymer optical fiber were studied under 404 nm excitation in order to study the illumination performance of the fiber. It was observed that the peak wavelength from the fiber photoluminescence spectra is higher than the peak wavelength from the fiber preform and that the peak wavelength from the fiber photoluminescence spectra is red shifted with the fiber length in the case of axial emission. The obtained results suggest the influence of self-absorption on the photoluminescence shape. Strong lateral emission along the fiber was observed with the naked eyes in all the cases. The lateral photoluminescence spectra show that the lateral emission is a combination between the pump laser and the Rh6G molecule photoluminescence. The results suggest that this polymer optical fiber could be a potential candidate for the development of fiber lighting systems. - Highlights: • Axial and lateral emission along the fiber was studied. • Self-absorption effect was confirmed in the case of axial photoluminescence. • The lateral emission is a combination between the laser and the RhG6 emission. • This fiber could be a potential candidate for the development of lighting systems.
[en] In this work, the photodegradation of a polymer optical fiber with Rhodamine doped cladding as a function of illumination time and excitation intensity is presented. To show the effect of photodegradation on different bulk geometries and environments, the photodegradation from a dye doped preform and a PMMA thick film is also evaluated. The reversible and the irreversible degradation of the florescent material were quantified under an established excitation scheme. To this purpose, a four-level system to model the photodegradation rates and its relation with the population of the states is presented and it is used to justify a possible underlying mechanism. The obtained results suggest an increase of one order of magnitude in the stability (lifetime) of the polymer optical fiber with respect to the preform or the thick film geometry stability.
[en] Fluorophosphate glasses of composition (P_2O_5–K_2O–Al_2O_3–CaO–CaF_2)-doped with various Nd_2O_3 concentrations were prepared by a melt quenching technique and their thermal, vibrational and optical properties were investigated. Thermal stability of the fluorophosphate glass has been determined from differential scanning calorimetric thermograph. The vibrational modes of the present glass have been studied using Raman spectrum. The intensity parameters, Ω_λ (λ=2, 4 and 6) as well as radiative properties for the "4F_3_/_2 level of Nd"3"+ ion, have been evaluated from the absorption spectra of 1.0 mol% Nd_2O_3-doped glass using the Judd–Ofelt theory. Strong near infrared emission at 1.06 =m attributed to "4F_3_/_2→"4I_1_1_/_2 transition has been obtained for all the glasses upon 806 nm diode laser excitation. Decay analysis has been carried out and found that the lifetime for the "4F_3_/_2 level of Nd"3"+ ion was found to be higher compared to the other Nd"3"+-doped glass host matrices. The quantum efficiency and saturation intensity have been determined to be 93% and 2.32×10"8 W/m"2, respectively for 1.0 mol% Nd_2O_3-doped glass. The results indicate that the present glasses could be useful for 1.06 µm laser applications. - Highlights: • Nd"3"+-doped K–Al–Ca fluorophosphate glasses were prepared and characterized. • Raman and DSC measurements have been carried out. • Strong near infrared emission at 1.06 μm ("4F_3_/_2→"4I_1_1_/_2 transition) has been found. • Optical properties have been evaluated and compared to other host matrices. • Higher lifetime and quantum efficiency have been noticed in the studied glasses


We have always adhered to the tenet of "Quality First", providing ultra-high precision measuring equipment and measuring instruments to the vast market, providing technical measurement solutions for Chinese industry. The products are mainly for medium and high-end products and services, and meet the comprehensive needs of industrial measurement. solution. The company's main business brands: British LK, Nikon Nikon, Mitutoyo Mitutoyo, British Taylor. Germany Mahr, Switzerland TESA, UK RENISHAW and other imported high-end testing equipment and measuring instruments and accessories, to provide customers with high quality, high efficiency, high precision High-end service and metering solutions.
Main high-precision: three-coordinate measuring machine, composite image measuring instrument, secondary element, industrial CT, laser scanning scanning, optical roughness meter, profiler, roughness profiler, roundness meter, non-contact optical profiler, etc.
Comprehensive metering solution
Dongguan Xinli Precision Machinery Co., Ltd. provides personalized measurement customization, comprehensive technical measurement solutions, and a complete service management system. Widely used in aerospace, automotive, general machinery, locomotive, plastics, electronics, mold, optics, medical and other fields. Especially widely used in large companies such as General Motors, Ford, Boeing, and Airbus.


AKRON—Duncan, S.C.-based Erhardt+Leimer Inc. exhibited its newest versions of its rubber guiding and handling systems at the International Tire Exhibition & Conference in Akron Sept. 11-13.
"We handle rubber reel-to-reel, in a continuous flow," said Maulik Desai, sales division manager for Erhardt+Leimer. "We guide it, we inspect it."
Among the equipment Erhardt+Leimer displayed at ITEC was its CCP camera for surface inspection and "missing skin" detection.
During calendering, blisters can develop, ruining the surface, according to Desai. The CCP camera can detect blisters, allowing customers to stop the calendering process and correct the problem before the batch is ruined, he said.
Erhardt+Leimer also exhibited the EL-Thickness calender, a non-contact thickness measurement system with point laser triangulation and eddy current sensor, according to company literature.
"It measures the distance between the sensor and the rolls, and also the senor and the rubber, and you do the math," Desai said.
The other products Erhardt+Leimer exhibited at ITEC included:
- The ELGuider + WBM, a highly accurate web guiding tool with a compact, brushless actuating drive; and
- The EL-Bob edge detection algorithm for the detection of web edges, laminated strips, noses and grooves.
Erhardt+Leimer Inc. is the U.S. division of Erhardt+Leimer GmbH, a 90-year-old company based in Stadtbergen, Germany.


Control system for detecting defects in the planarity of ceramic tiles
RedLine is a measuring tool to detect defects in the planarity of ceramic tiles.
The device is able to acquire, reconstruct, visualize and analyze the profile of the entire surface of the tile with a precision of ± 1 tenth of a millimeter.
The sophisticated camera system with laser line generators (up to 9), analyses the entire surface without contacting the tile measuring even the smallest deformation.
Measuring tool to control the tile caliber and dimensions
LINER monitors the dimensions of the tiles and makes it possible to identify those with irregular shapes (defects) and subdivides the tiles into classes (calibers) on the basis of their dimensions.
The selection criterion classifies the tiles according to shape defects (trapezium effect, cushion effect, lack of square shape) and dimensions (outside of caliber and relevant caliber).


New Lens Technology
ASK ABOUT SPECIALTY LENSES FOR YOUR NEW FRAMES.
Designer frames may help you look good, but the lenses are what allow you to see well. There are many options to make your lenses lighter weight, non-glare, bifocals without any lines, computer-use designs, PhotoFusion technology that offers sun protection when activated, and different material options that have crisper, clearer optics to give you not only the most optimal vision, but also the most cosmetically-pleasing eyewear available anywhere!
Our philosophy when prescribing glasses is to educate you on the differences in design and quality of lenses available. Superior quality lenses are typically available through large labs and cannot be made in just a couple of hours. Some commercial stores offer lenses in an hour or so, but you must understand that you are not receiving the best quality lenses available on the market. We use these larger labs to ensure the best quality lenses. You will not receive these lenses in one hour but we believe the wait is well worth it.
White Eye Care Center offers the world’s most advanced progressive lenses by Zeiss featuring Precision Technology that includes:
- Clear optics - ZEISS Precision: Excellent vision thanks to maximum precision with the advanced eye-lens system, point-by-point optimization in real time and leading-edge freeform technology.
- Dynamic optics - ZEISS Design Philosophy: Comfortable, dynamic vision with fast focusing at every distance and in every direction.
- Thin optics - ZEISS Lens Aesthetics: the optimum balance between precise optics and thin, lightweight lenses.
Zeiss DuraVision Platinum
Zeiss Progressive Lens
ZEISS DuraVision Platinum (replaces Crizal)
Lens coatings transform lenses into everyday masterpieces. They harden lenses, make them dirt-resistant, and easier to clean. But that's not the end of the story. Good anti-reflective coatings are equally essential. Try the all-in-one DuraVision Premium Coating from ZEISS: called DuraVision Platinum.
Protection, cleanability and the ultimate in eyewear fashion
- Clear and relaxed vision thanks to the lenses' improved clarity.
- Improved appearance because of fewer irritating reflections on the lens.
- The most technologically advanced anti-reflective coating from ZEISS.
- Outstanding durability for robust, scratch-resistant lenses.
- Easy-to-clean lenses thanks to the antistatic property and CleanCoat layer.
SINGLE VISION LENSES:
Are you totally satisfied with your glasses? Whether you need lenses for reading or distance vision, precisely-fitted single vision lenses are a must. ZEISS offers four levels of quality, ranging from traditional spherical up to individualized lenses. Modern ZEISS technology can produce extraordinarily flat and lightweight lenses, even for high prescriptions. Together with your eye care professional, you can tailor your new lenses to meet your own personal needs.
Single vision lenses to meet any requirement
- ZEISS single vision lenses offer four quality categories that are sharply focused on your visual needs.
- Optimization of the lens power, also for high prescriptions, for easy-to-wear, comfortable eyeglasses and an attractive appearance.
- High break resistance and therefore ideal for sports and children's glasses.
- Better night vision: you can also order ZEISS progressive lenses with i.Scription® technology – for even better contrast perception and color intensity.
- You can select additional lens coatings and extras - such as the DuraVision Platinum® premium coating, tinted lenses or self-tinting lenses with PhotoFusion® technology.
Quality Eyeglasses Take a Little Extra Time and Expertise.
If some other optical providers offer One Hour Service, why should you wait? The most common problem we encounter is a patient unhappy with their glasses made at a discounted eyeglass facility. A high quality pair of eyeglasses can't be delivered in a "fast food" style.
- White Eye Care Center uses years of experience to determine the best prescriptions for you and your lifestyle.
- Lenses and frames are then custom-measured and fit by our trained technician, who is thinking of your needs and the way you will be using your new eyewear.
- Our products are latest-generation - no "older models" or discontinued versions.
- Eyeglasses are carefully manufactured in a US facility where they don't ship unless they are just right.
Checks and balances are in place because we hold our vendors to the highest standards. Unlike many big retailers, we don't own the manufacturing or the lens labs so we are able to hold them accountable to your satisfaction.


Oak Bay Optometry is here to help you with your eyeglass needs and to make sure you have the best vision possible.
Frames – we offer a one to two year warranty (depending on the frame collection) on manufacturing defects.
Lenses – just like our frame warranty, we offer a one to two year lens replacement on manufactures defects.
We want you to love your glasses! If you are unhappy with your frame choice, we offer a one-time frame change within 30 days.
We offer a one time remake of your lenses within a 90 day period for prescription or lens design changes.
Lenses are a custom product designed just for you. Due to this we are not able to offer refunds on lenses. Cancellations made after the lenses are in process will result in the deposit being forfeited.


Why go black or grey? With PENTAX there’s no need to follow the old colourless rules of handheld camera design – with over 40 different colour combinations, your camera can be as colourful as its photos.
There are 5 different body colours – Black, Gunmetal, Pure White, Champagne Gold, and Bright Silver. Then you can combine with varied grip colours in Charcoal Black, Cream, Carmine Red, Canary Yellow, Khaki Green, Royal Blue, Burgundy and Pale Pink. When you remember you can also choose a different colour for your lens, you realise there are 40 different colour combinations – the most vivid looking cameras ever made are yours for the taking.
So what’s the deal with the cameras most important function? As a camera PENTAX Q-S1 has been equipped with 12.4 megapixels, A1/1.1-inch back-illuminated CMOS sensor, a sensitivity range of ISO 100-12800 and ultrasonic vibrating ‘DRII’ sensor cleaner. The latter function is great if you do not want to see dust from your lens in your pictures – which is about true for everyone. When you consider all this functionality and remember that it is a very compact, easy to carry camera the Q-S1 quickly becomes a very attractive option – and that’s not just in terms of its colourful appearances.
The screen at the back is 3.0 inch LCD wide-angle back at the front you get a built-in retractable P-TTL flash. All the following optional lenses are available on the PENTAX Q-S1:
PENTAX 01 Standard PRIME 8.5mm F1.9 AL [IF]
PENTAX 02 Standard ZOOM 5-15mm F2.8-4.5
PENTAX 03 Fish-Eye 3.2mm F5.6
PENTAX 04 Toy Lens Wide 6.3mm F7.1
PENTAX 05 Toy Lens Telephoto 18mm F8
PENTAX 06 Telephoto Zoom 15-45mm F2.8
PENTAX 07 Mount Shield Lens
PENTAX 08 Wide Zoom 3.8-5.9mm F3.7-4
Adapter Q for K-mount Lenses
One drawback of the camera, as pointed out by Cnet, is the camera’s lack of wireless functionality: “The camera still doesn’t have built-in Wi-Fi, though it still supports Eye-Fi”. Eye-Fi requires the purchase of a small SD-card like attachment for the camera and allows it to communicate wirelessly with computers and storage devices, so the camera can share files without the need for it to be plugged in via USB. While this can be useful for some, it is a shame that wi-fi functionality has not been included, as Eye-Fi requires paying for the attachment, and many similar top-of-the-line cameras have Wi-Fi built in.
On the plus side the camera also includes autofocus while recording videos which allows the camera to produce much higher-quality video with less blur. The camera also includes the ability to mount a K lenses adapter, so the budding photographer can chop and change lenses quickly on-the-fly.
You can pre-order the camera at RICOCH Imagine UK for £299.99 (body only) and up to £549.99 for the camera with a 5-15mm lens and a 15-45mm lens included. Shipping will start from the 28th of August 2014.
For more details visit RICOCH Imagine UK ltd.


Take your Fujifilm GFX100 anywhere with the HPRC2500, the most durable and indestructible solution to protect your camera.
Waterproof, unbreakable and lightweight: this hard case offers maximum protection to the camera and its accessories ensuring extreme safety.
The case can feature:
Ac Power Adapter
Adjustable Lens: FUJIFILM GF 110mm f/2 R LM WR Lens, 23mm f/4 R LM WR Lens, 45mm f/2.8 RWR Lens, 32-64mm f/4 R LM WR Lens without sunshade
The images are for the sole purpose of presenting the product. The case is sold WITHOUT equipment.


Custom Dynamics® ProBEAM™ 7" LED Headlight - Black
Engineered from the ground up using the highest quality automotive LEDs for an incredibly wide optical pattern producing an ideal beam pattern with illumination down the road as well as on either side.
Low beam consists of three high-power advanced optical D lenses and a daytime running light (DRL)
High Beam keeps low beam illuminated and adds two additional advanced optical D lenses with three projector lenses for an incredibly wide optical pattern producing an ideal beam pattern with illumination down the road as well as on either side.
Made from a heavy-duty, lightweight die-cast aluminum.
Durable poly-carbonate lens for long term durability that will not crack like glass due to heat and vibrations.
The low-profile housing requires no trim ring and offers a plug and play installation.
Headlamps are SAE, DOT and ECE compliant
Fits 1981-2019 Harley Electra Glide, Ultra, Street Glide and Tri Glide Models (See fitment Below.)
Headlamps feature a True Black finish.
Lifetime LED warranty.
Made in the U.S.A..
OD - 7"
Depth - 1-1/2”
Custom Dynamics® ProBEAM® LED Headlamp is designed for plug and play installation on 1981-2019 Harley-Davidson® Electra Glide®, Ultra, Street Glide® and Tri Glide® models (including CVO™)
H4-TOUR-ADPT required for plug and play installation on 2014-2019 models). 1994-2019 Road King® models (including CVO™)
CDTB-H42H9H11 adapter required for plug and play installation on 2014-2019 models).2015-2019 Freewheeler®. 2012-2016 Dyna® Switchback. 1984-2017 FL Softail® models with OEM 7” headlight buckets.


Putting the “Science” in “Science Fiction” – Mastermind
Mastermind is a super-villain and enemy of Marvel’s X-Men who has the ability to create illusions, tricking people into seeing and experiencing things that are not actually there. He accomplishes this by projecting the images he wishes to create into the person’s mind, tricking their brain so that the target sees the image – even though it isn’t there.
By transmitting signals into a person’s brain, it would be possible to hijack the standard process that creates the sensory experiences people feel, thereby creating an illusion that would be totally indistinguishable from reality. A system that works in this manner would likely never be used, as the technology required would be extremely advanced and the potential for abuse would likely be seen as too high. However, for years, people have been trying to find a way to create truly realistic three-dimensional images that would be indistinguishable from the real thing. The technologies involved have progressed from the old red-and-blue 3D glasses that were first used in 1915 to the sophisticated techniques that led to the recent resurgence in 3D films.
Although there is no telepathy involved, 3D films and images still do their work by tricking the brain. By showing a slightly different and properly calibrated image to each eye, 3D media imitates the way the brain normally processes three-dimensional objects and creates the illusion that the two-dimensional screen shows a 3D image. Although this technology has become more advanced in recent years, it still requires a pair of glasses to be effective. Scientists and inventors are currently working to create systems that will be able to project a true 3D object, allowing people to enjoy them without the need for glasses and even be able to view them from all angles. Once this technology is mastered, it could completely replace conventional screens, as well as open the door for a new way of interacting with machines.
The projection of true 3D images, often known as holography, is a difficult field of research… since current display technology
requires a medium in order to project an image. One of the easiest and least expensive avenues of holography still uses a medium like this to create an image. In order to create a 3D image, this method uses a technique from the Victorian Age called “Pepper’s Ghost,” where a light is reflected off an object and onto a slanted area of clear film. This creates a transparent duplicate of the image on the film, and the amount of opacity can be controlled by adjusting lighting. Modern images use a projector to shine the image directly onto the film, creating a much clearer and more easily controlled image. These films can be installed on conference tables or placed on large stages and the displays can range from small to enormous and elaborate. Unfortunately, this type of holography relies on a screen and projector, limiting its applications, and is very expensive.
Scientists and inventors are working on other holography techniques in order to get around the limitation of requiring a screen, as this would greatly increase a projector’s utility and portability. Hewlett-Packard is currently examining a method of doing this that involves the use of a transparent screen with LEDs arranged around the edge. The light from the LEDs shines in towards the center, where it is reflected away from the screen at different angles. Because the light is projected outwards and is aimed in slightly different directions, the brain interprets the input it is receiving as a 3D image. Although the current model is not yet versatile enough to create a truly 3D experience, the system is compact enough that it may be possible to incorporate it into portable electronics like laptops and cell phones.
The main reason that the 3D experience is not yet convincing is because the current model only allows light to escape in 16 directions, while the next generation promises 64 possible directions. Once this technology becomes capable of true 3D projection, it is predicted to first see use in advertising signs and other large-scale applications before moving into smaller and more portable applications.
Another experimental holographic device is the Aerial 3D by Burton. This fascinating device is one of the few that does not rely on any type of optical trickery in order to function, as it creates a truly 3D image. The Aerial 3D accomplishes this by not projecting an image in the traditional sense, but rather by using a laser to create a plasma reaction in the air. These plasma reactions are carefully arranged in points of light that create an image, allowing a fully three-dimensional image to be created. The system is currently limited to creating the equivalent of 10 or 15 frames per second (thus creating choppy images), but work is underway to improve this to reach 24 to 30 frames per second. At this frame rate, the system would be operating at an equivalent speed to basic video, and by adding multiple laser arrays, the colour can be adjusted as well. Although the laser’s high power requirements will likely prevent this system from being used in portable electronics, its power and the fact that it creates true 3D images means it will be very useful in many other applications.
The use of holograms as display tools will revolutionize the creation of electronics and the entertainment industry, but another area of holography may lead to an even bigger change in how people interact with their machines. A system being worked on at the University of Tokyo tracks the user’s hand movements as they interact with a hologram and then uses an array of ultrasound projectors to create pressure on the hand in response to contact with the image. This creates sensations of touch and allows the user to not only see the hologram, but to feel as if they are interacting with it physically. Although this technology is still in its infancy and will likely not be able to mimic feelings of texture, it can certainly be used as a form of haptic feedback.
When a system like this is combined with lasers used to measure distance or a set of gloves with position sensors, it would be possible to create a computer that relies completely on holograms to display information and accept the user’s feedback, as shown in many movies and video games. If this type of technology becomes possible, it would completely change how people interact with electronics, with applications ranging from holographic keyboards to computer modelers sculpting their creations by hand without a need for a mouse or stylus.
Featured Photo: cmro.travis-starnes.com


- Built-in sound absorbing microphone, your voice can be heard clearly in 10 meters. Good quality and delicate appearance.
- Two megapixels, high resolution, and true color images.
- It can rotate around 360 degrees and up and down 30 degrees, and the Angle can be adjusted as needed.
- Professional optical lens, high precision.
- Designed for laptops and desktops.
- Automatic white balance, automatic color correction.
- Manually adjustable focal length.
- Support QQ / WeChat / Win7 / Win8 / Win10 / Vista 32bit.
- Support Nailing/Facebook/YouTube/etc.
- DSP chip: computer automatic recognition driver - free
- Image sensor: CMOS
- Lens: high quality glass lens
- High definition: 2.0MP pixels
- Dynamic resolution: 1920*1080
- Frame rate: 30fps
- Focal length: 8 mm infinite
- Cable length: 150cm


- What colors absorb what colors?
- Does gray light exist?
- Which colors reflect the most heat?
- What reflects light better white or silver?
- Does Blue absorb light?
- Why does black absorb light?
- What color has the highest frequency?
- What colors does GREY reflect?
- What colors are reflected and absorbed?
- What colors absorb the most light?
- What color does not absorb light?
- What objects can absorb light?
What colors absorb what colors?
Complementary ColorsColor absorbedColor seenBlueOrangeGreenRedYellowVioletOrangeBlue1 more row.
Does gray light exist?
So, first answer: No, there ain’t no such thing as gray light. But if your arrange those white LEDs into a matrix and call that matrix a computer screen, then you can dim a portion of those white LEDs and get gray. Yes, Virginia, there is gray light, and it’s what’s coming at you when you look at the image below!
Which colors reflect the most heat?
Black – the color that absorbs all visible wavelengths of light – attracts the most heat, followed by violet, indigo, blue, green, yellow, orange and red, in descending order.
What reflects light better white or silver?
Silver reflects much more light, so you’ll use silver when you position the reflector back away from your subject. If you need to get a reflector right up close, then use white, because it doesn’t reflect nearly as much light as silver.
Does Blue absorb light?
If something is blue, that means it absorbs all frequencies of visible light except blue (450 nanometer wavelength) light which is reflected or transmitted through.
Why does black absorb light?
“A black object is black because it’s absorbing all the light; it’s not reflecting any color,” Chandrasekhar says. White objects reflect all color. … While black objects absorb the energy from all colors and become hot, the objects gradually release some of that energy back into the air around it.
What color has the highest frequency?
violetWhen it comes to visible light, the highest frequency color, which is violet, also has the most energy. The lowest frequency of visible light, which is red, has the least energy.
What colors does GREY reflect?
Objects that are white, or any shade of grey, reflect or transmit equal portions of the color spectrum. You can see the colors of the spectrum, which range from red to yellow to green and blue, with a prism or in a rainbow. When an object absorbs some colors but reflects others, we see the color that is reflected.
What colors are reflected and absorbed?
If only blue light is shone onto a red shirt, the shirt would appear black, because the blue would be absorbed and there would be no red light to be reflected. White objects appear white because they reflect all colours. Black objects absorb all colours so no light is reflected.
What colors absorb the most light?
The only color that does not attract heat is white because white objects reflect all visible wavelengths of light. Black – the color that absorbs all visible wavelengths of light – attracts the most heat, followed by violet, indigo, blue, green, yellow, orange and red, in descending order.
What color does not absorb light?
color whiteWhite light contains all the wavelengths of the visible spectrum, so when the color white is being reflected, that means all wavelengths are being reflected and none of them absorbed, making white the most reflective color.
What objects can absorb light?
In truth, all objects, living or inorganic are capable of absorbing light. In all cases, absorption depends on the electromagnetic frequency of the light being transmitted (i.e. the color) and the nature of the atoms of the object.


Explaining The Science Behind The Nobel Prize In Physics
Three scientists won this year’s Nobel prize in physics for work which led to the creation of LED light. Their breakthrough was in creating blue LEDs. Other researchers had produced red and green LEDS, but you need all three colors to make the bright white light emitted from LED light bulbs.
Two of the scientists are in Japan one is American Shuji Nakamura at the University of California Santa Barbara.
The Nobel committee cited the three scientists for triggering a fundamental transformation of lighting technology, saying that it can improve life especially for poor people around the world who do not have access to electricity.
- Brian Greene, professor of physics and mathematics at Columbia University. He’s also the co-founder of the World Science Festival. He tweets @bgreene.
Copyright 2020 NPR. To see more, visit https://www.npr.org.


Accessorising your airsoft replica is a rite of passage, and is one everyone goes through, whether it be the addition of functional items, or merely simple additions to make the gun feel more yours. Regardless, there are many options to choose from. One of the biggest choices many people face is what sort of optic, if any, to put on their gun. Some prefer the fast target acquisition benefits of a red/green dot sight, whilst others prefer the longer range approach of the magnified optics. For Red Dot sights it’s just a case of deciding on a shape/style that you like the look of, and going from there. With magnified optics it’s a little more complicated – you have to factor in eye-relief, objective lens diameter, magnification and optical clarity, as well as size and styling.
A classic rifle scope design, the 4×40 scope offers everything you need in an attractive package. You get the scope, mounts, and lens covers, and the scope itself has more than sufficient objective lens to give you a very clear sight picture, as well as having the perfect magnification for airsoft; anything over 4x is seeing further than you can hit, and is only useful for spotting targets. Due to the size of this scope, it is better suited to longer assault rifles such as the M16, or on Bolt Action rifles.
|Adjustment||Windage & Elevation|


Gentwin LED Lighting Co., Ltd
- Posted on inAuto Electrical & Light System, Aviation Safety & Warning Lights, Chandeliers & Wall Sconces, Decorative and Party Lights, Interior and Exterior Lighting, Lights & Lighting Products, Neon & Glow Signs, Optical Components & Optics, Stage, Flood and Commercial Lights, Table Lamps & Lamp Shades
COMPANY NAMEGentwin LED Lighting Co., Ltd
ADDRESS3C, Building 3, No. 2188 Jiashan Avenue, Dayun Town,Jiashan County, Zhejiang Province, China
MAIN PRODUCTSLed Heat Sink,Lamp Heat Sink,High Pole Light,High Mast Lamp
NUMBER OF EMPLOYEES:100
TOTAL ANNUAL SALES (US$)-
CONTACT NO+86 573-84662688
FAX NO+86 573-84661000
Gentwin LED Lighting Co., Ltd specializes in LED lighting R&D, Manufacture and Sales, which locates at the southeast of China, Zhejiang Province, near Shanghai. Major products are LED Light, LED heat sink, accessories, etc, and offer professional technical support, customized solution and assembly service to clients. Own factory and China invention patent ensure the product performance, quality, price and production capacity.
The company covers an area of 2600 square meters, has more than 60 employees and many China patents, including one item of China National Invention Patent, nine items of Utility Model Patent, ten items of Appearance Patent. It has passed the ISO9001:2008 quality system certification in 2010.
Most of the company products are exported abroad, such as the US, the UK, Germany, Russia, Japan, Korea, Taiwan, India, South Africa and other countries and regions. Because of the advantage of innovative technology and the invention known as heat column, the performance of Gentwin’s product is excellent, stable, and gains the competitive edge in market.
Gentwin’s advanced and core technological product is heat column, which works through phase change heat transfer principle with china invention patent, has super-fast thermal conductivity, and are especially suitable for the high-power LED light, such as LED high bay light. It also can be designed for LED flood light, LED tunnel light, LED down light, LED fishing light, explosion-proof lights and other lights.
Gentwin LED Lighting Co., Ltd is striving for excellence in quality, service to customers, build long term mutually beneficial cooperation relationship. Welcome communication and cooperation.


The latest camera offering from Panasonic, the LUMIX S5, combines video and still photography in one small, mobile, and robust package that should appeal to bloggers and novices alike.
Blogger’s rejoice. Panasonic’s new LUMIX S5 hybrid, full frame mirrorless camera retains much of the functionality of its bulkier predecessor the LUMIX S1 but in a much more manageable package that is perfect for both novices and internet bloggers.
The new camera provides impressive video capabilities through the powerful 24.2 35mm full frame CMOS sensor that was introduced with the LUMIX S1 but in a small, robust, and highly mobile body.
Helpfully for bloggers, the viewing screen flips out through 180 degrees, making it ideal for lone bloggers doing stand-ups to camera, along with a handy 5-axis stabilisation system to help limit camera shake.
The camera combines 4K 60p 10-bit internal recording and external outputs. Additionally, the camera is compatible with Panasonic’s DMW-XLR1 microphone adaptor which allows professional audio equipment to be used in video creation.
“The hybrid S5 packs the essential capabilities of our ground-breaking flagship S Series cameras into a small, mobile and robust body,” says Panasonic’s product marketing manager James Choi. “Enthusiasts who want to take their creativity to the next level can harness the incredible image quality of a powerful full-frame sensor.Panasonic’s product marketing manager James Choi
“The S5’s compact size belies the impressive performance under the hood – this camera is class-leading in the sheer breadth of video and stills capabilities it puts in the hands of content creators.”
Inspired by the flagship S Series professional camera line-up, the S5 provides enthusiasts with a compact, durable camera designed for field use. The camera’s full magnesium alloy weather-sealed body is splash and dust resistant, essential for working in a range of environmental conditions. Dual SD card slots offer further flexibility with relay recording and backup support. A large, high-resolution OLED viewfinder delivers quick response with minimum distortion for easy and accurate framing of the scene.
Panasonic is currently developing several S Series prime and zoom lenses at popular focal lengths, designed to further expand the creative possibilities for LUMIX S Series users. These new portable and lightweight lenses include a 24mm F1.8, 35mm F1.8, 50mm F1.8, 85mm F1.8 and a 70-300mm F4.5-5.6, all of which will complement the S5 very well.
It also has an improved autofocus feature that readily adjusts focus on moving figures, perfect for bloggers who are talking as they move within the frame or pointing out features across a wide area.
LUMIX S5 Features
- 4K 10-bit video
- 5-axis stabilization
- 180-degree flip-out display
- Compact size
- Faster autofocus


In recent years, most results of CaII studies of the solar chromosphere in H and K lines have been based on observations with narrow passband filters. The Baikal Observatory’s full-disk chromospheric telescope for the K CaII line with a birefringent filter (BF) has again been included in observation programs of the Sun Service Station and scientific research. We analyze the methods of telescope and modernized birefringent filter adjustment. After many years of continuous operation, a pressing need arose to replace the damaged parts of the chromospheric telescope. Optics and mechanics of the entire telescope have been cleaned and readjusted. Wavefront interferograms of the teleobjective lens and of the whole telescope show that wavefront distortions of the entire optical path are within 0.25 λ. We present an optical scheme and discuss optical-physical characteristics of BF elements. The interference prefilter and UV polarizers have been replaced, and passbands of BF tunable stages have been adjusted. The BF spectral characteristics provide a fairly high contrast of monochromatic images of large-scale phenomena. Unfortunately, with a collimator and Sony Cyber-Shot DSC-S85 camera, mounted on the telescope, the theoretical resolution of the 180-mm telescope is not realized. We have therefore calculated two optical schemes of telescope changes for possible improvement in spatial resolution.
chromospheric telescope, birefringent filter, interferometric measurements
1. Evans J.W. The birefringent filter. J. Opt. Soc. Am. 1949, vol. 39, pp. 229–242. DOI: 10.1063/1.3066514.
2. Issledovanie vozmozhnosti uvelicheniya propuskaniya polyarizatsionnykh filtrov dlya vidimoi oblasti spektra, ispol’zuemykh v IPF [Studying the possibility of transmittance increase for polarization filters in visible spectral region used in IBF]. Report SOI, LOMO. 1984, 59 p. (In Russian).
3. Klevtsov Yu.A. Working characteristics of birefringent filter in telescope optical scheme Issledovaniya po geomagnetizmu, aeronomii i fizike Solntsa [Res. on Geomagnetism, Aeronomy and Solar Phys.]. 1984, no. 69, pp. 183–189. (In Russian).
4. Koronkevich V.P. Formirovanie izobrazheniya v opticheskikh sistemakh [Image formation in optical systems]. Tutorial. Novosibirsk, 2005. NsTU Publ., 76 p. (In Russian).
5. Reardon K.P., Uitenbroek H., Cauzzi G. The solar chromosphere at high resolution with IBIS. III. Comparison of CaII K and CaII 854.2 nm imaging // Astron. Astrophys. 2009, vol. 500, iss. 3. pp. 1239–1247. DOI: 10.1051/0004-6361/200811223.
6. Skomorovsky V.I., Kushtal G.I., Lopteva L.S., Proshin V.A., Trifonov V.D., Chuprakov S.A., Khimich V.A. Chromospheric telescope of Baikal Astrophysical Observarory. New light. Solar-Terr. Phys. 2016, vol. 2, iss. 2, pp. 82–103. DOI: 10.12737/ 17376.
7. Sotnikova R.T. Simultaneous observations of solar chromosphere in Hα and K CaII lines Solnechnye dannye [Solar Data]. 1977, no. 12, pp. 97–100. (In Russian).
8. Trifonov V.D., Skomorovsky V.I., Pipin V.V., Domyshev G.N., Grigoryev V.M. Chromospheric K SaII telescope. Issledovaniya po geomagnetizmu, aeronomii i fizike Solntsa [Res. on Geomagnetism, Aeronomy and Solar Phys.]. 1992, iss. 99, pp. 128–149. (In Russian).
9. Trifonov V.D., Golovko A.A. Skomorovsky V.I. Chromospheric observations at Baikal Astrophysical Observatory using CCD cameras. Solnechno-zemnaya fizika [Solar-Terr. Phys.]. 2004, iss 6, pp. 178–180. (In Russian).
10. URL: http://ckp-rf.ru/usu/200615 (accessed February 6, 2019).


Visian Implantable Collamer Lens (ICL)
The time has never been better if you’re considering vision correction surgery. We believe in providing our patients with the very best and latest technology available and we consider our practice a FULL SERVICE VISION CORRECTION FACILITY. Are you aware there is an incredible alternative to Lasik and PRK? The Visian Implantable Collamer Lens (ICL) was FDA approved in 2005 and over 250,000 lenses have been implanted worldwide. Many happy patients have been fortunate to learn about and ultimately have Visian ICL surgery and are now enjoying high definition vision without the hassle of contacts or glasses, a dream they never thought would come true.
The Visian ICL is an implantable Collamer lens that works with the eye to correct vision and blocks harmful UVA and UVB rays. Unlike Lasik or PRK, there is no tissue removed from the cornea (eye surface). The Visian ICL is implanted through a tiny incision that takes only minutes to complete and remains between the iris and natural lens of the eye . The lens is undetectable with the naked eye so nobody can see it after implantation and you cannot feel it in your eye. Although designed to last a lifetime, another advantage is that the lens is removable should your vision change significantly over the years. Made with Collamer, a technologically advanced material that is exclusive to STAAR Surgical, it is highly biocompatible.
The product is indicated for use in patients who are between 21-45 years of age who are nearsighted and demand the highest quality of vision for their active lifestyles. In fact, the US Military has embraced this technology and the Visian ICL has been improving the vision of the bravest people in our nation under the harshest conditions imaginable. The results are nothing short of heroic.
Your surgeon will determine if you are a good candidate for the Visian ICL and customize a vision correction plan based on your specific prescription, the health of your eyes and your lifestyle needs. To learn more about the many advantages of the Visian ICL visit www.visianinfo.com


Scientists in Switzerland have designed transparent solar panels that could make windows generate electricity.
All that natural light flowing through your windows may one day do much more than brighten your mood.
Scientists in Switzerland have reached a new efficiency record for transparent solar cells, paving the way for electricity-generating windows that could help power our homes and devices.
Also known as Grätzel cells, dye-sensitised solar cells (DSCs) are a type of low-cost solar cell that uses photosensitised dye attached to the surface of a semiconductor to convert visible light into energy.
The previous versions of DSCs were largely reliant on direct sunlight, but scientists at the École Polytechnique Fédérale de Lausanne (EPFL) have found a way to make transparent photosensitisers - molecules that can be activated by light - that can “adsorb” light across the entire visible light spectrum.
"Our findings pave the way for facile access to high-performance DSCs and offer promising prospects for applications as power supply and battery replacement for low-power electronic devices that use ambient light as their energy source," wrote the authors of the study, published in the scientific journal Nature.
Transparent solar panels
DSCs are transparent, flexible, and can be manufactured in a wide range of colours for a relatively low cost. These see-through solar panels are already being used in skylights, greenhouses, and glass facades.
In 2012, the SwissTech Convention Center became the first application of DSCs technology in a public building.
In 2017, the Copenhagen International School inaugurated its new building covered by approximately 12,000 blue-hued but transparent solar panels that use the same DSC technology.
They provide around 300 megawatt hours (MWh) of electricity per year, meeting over half of the school’s annual energy needs.
See-through solar tech with 30% efficiency
But despite the fact that energy-generating windows have been on the market for a number of years, one recurring complaint was their limited capacity for generating electricity when compared to traditional solar cells.
The new breakthrough from the team at EPFL could soon help overcome that barrier.
Thanks to a new molecule design, they have increased the power conversion efficiency of DSCs - in other words, the share of the solar energy shining on them that is converted into usable electricity - reaching beyond 15 per cent in direct sunlight and up to 30 per cent in ambient light conditions.
For reference, commercial solar panels currently have an average efficiency of around 20 per cent.
The new generation DSCs also demonstrated "long-term operational stability" of at least 500 hours.
Materials that convert sunlight into electrical energy have a huge potential to fulfil the planet’s increasing need for cost-effective renewable energy technologies.
Glass windows hold an especially massive potential: Imagine if entire skyscrapers could be turned into vertical solar farms?
Back in 2017, a team at Michigan State University that developed a new type of solar concentrator creating solar energy when placed over a window deemed that transparent solar technologies could supply around 40 per cent of energy demand in the United States.
It estimated that if combined with rooftop solar units - and the right storage technology - that share could rise to almost 100 per cent.
In Europe, solar power accounted for 12.2 per cent of the electricity generated in the EU this summer, the highest share on record.
Based on current trends, it has the potential to meet up to 20 per cent of the EU’s electricity demand by 2040, according to the European Commission.
Most of the planet’s solar energy currently goes uncaptured. What would things look like if every window around us could harvest it?


Kejako focus on early treatment to maintain visual accommodation by offering a personalized anti-aging laser treatment called ”Phakorestoration”.
A solution for presbyopia has been described as ophthalmology’s “Holy Grail”(OIS, Dec. 2018 & OFF, Sep.2019)
AN INNOVATIVE PRESBYOPIA TREATMENT
Phakorestoration has multiple key benefits :
- Treat the root causes of Presbyopia
- Real accomodation, again
- No cuts, no clear lens extraction
- Comfortable near vision for midlifers, without reading glasses.
- Tailored to patient’s vision thanks to our simulation expertise and proprietary numerical model that fits the eye’s biometry
- Maintains visual accommodation throughout the whole aging process – from the first symptoms of presbyopia until the development of cataracts.
A SURGERY THAT ADRESS THE ROOT OF PRESBYOPIA
Presbyopia is the progressive loss of visual accommodation with age. The accommodative amplitude is directly related to the ability of the crystalline lens to change its shape, that’s why it appears in midlife, as soon as the crystalline becomes stiff.
Phakorestoration focus on rejuvenating the lens material itself through a laser treatment. By softening the lens tissues through a particular pattern, the lens to deform again, allowing to retrieve a comfortable accommodation amplitude for daily life activity.
On the contrary of intra ocular implants, Phakoestoration does not need to extract surgically the lens, nor to open the cornea or create cuts. The material change are performed in situ by a femtosecond laser, the light passing through the cornea and focusing in the lens.
The laser energy is only focused inside the crystalline lens, allowing to retrieve the properties lost while aging. Everywhere else in the eye, the laser is completely defocused, ensuring no interaction with the retina or the cornea.
PERFORMANCE AND SAFETY
Phakorestoration improved lens curvature change by an average of 30% which is transpose in an increase of the available amplitude of accommodation by +1.5 diopters (+60% of the residual accommdative power).
Calibrated with pre-operative imaging, the laser energy is distributed following the biometry of the lens, whatever the size, position or shape of the lens. In addition, high-quality histology and imaging are proving that the laser interaction is locally changing crystalline lens structure as predicted by our computer model.
In vivo safety trials already demonstrate the perfect health of the cornea and retina after surgery in 100% of the cases.
CUSTOMISED BY NUMERICAL SIMULATION
Kejako has developped the most comprehensive and performant model of the accommodation process. This numerical simulation adapts to the patient biometry and state of presbyopia to predict the optimal pattern of treatment and predict the performance.
Learn more about our eye model > here <


Global Tunable Filter Market size is expected to reach US$ XXMn. by 2026 from US$ XXMn. in 2019, at a CAGR of 8.6% during the forecast period.
Global Tunable Filter Market Overview
Tunable filters are identified to deliver many advantages to any optical system that require wavelength selection and tuning and are expected to witness demand for both wireless and satellite applications. Several types of tunable filters are available that are best suited to the requirements of a wide range of applications like electronic imaging.


Speaker: Diego Thomas (JFLI & NII)
Date: 28th February 2013
Place: room 214, Faculty of Science Bldg. 7, Hongo Campus, The University of Tokyo
Recently, a significant effort has been made to develop inexpensive consumer depth cameras that allow the acquisition of depth images at a video rate, e.g., Microsoft Kinect. The video-rate depth cameras are becoming a commodity tool for depth measurement with reasonable accuracy. Such a depth camera brings a new problem setting for 3D reconstruction: how to efficiently and accurately register (i.e. align) a dense set of depth images taken from continuously varying viewpoints. We present a robust and accurate 3D registration method for a dense sequence of depth images taken from unknown viewpoints. Our method simultaneously estimates multiple extrinsic parameters of the depth images to obtain a registered full 3D model of the scanned scene. By arranging the depth measurements in a matrix form, we formulate the problem as a simultaneous estimation of multiple extrinsics and a low-rank matrix, which corresponds to the aligned depth images as well as a sparse error matrix. Unlike previous approaches that use sequential or heuristic global registration approaches, our solution method uses an advanced convex optimization technique for obtaining a robust solution via rank minimization. To achieve accurate computation, we develop a depth projection method that has minimum sensitivity to sampling by reading projected depth values in the input depth images. We demonstrate the effectiveness of the proposed method through extensive experiments and compare it with previous standard techniques.


WRLDINVSN Blackout Shades
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Thomas Lord Professor, Department of Materials Science and Engineering
Director, Microphotonics Center
Principal Investigator, Electronic Materials Group
Ph.D., Metallurgy, MIT, 1969
S.B., Metallurgy, MIT, 1965
Prof. Kimerling's research has had fundamental impact on the understanding of the chemical and electrical properties of defects in semiconductors and in the use of this knowledge in materials processing and component reliability. His research teams have enabled long-lived telecommunications lasers, produced the first 1MB DRAM, developed semiconductor diagnostic methods such as DLTS, SEM-EBIC, and RF-PCD, and pioneered silicon microphotonics. His MIT research on silicon processing has addressed integrated circuit fabrication, microphotonic materials and devices, solar energy conversion and environmentally benign integrated circuit manufacturing. Among the achievements of this research are the creation of a process simulator for wafer contamination gettering; development of a new ultrasensitive measurement for silicon surface perfection; the discovery of a surface passivation method for the reduction of cleaning steps in manufacturing; and the development of in-situ diagnostic tools for wet chemical process control.
His group's microphotonics research has produced a series of first ever achievements with the goal of monolithic integration of optical interconnection with integrated microelectronic circuit chips. A few of the legendary results in this area include the optoelectronic physics and materials processing of rare earth-doped semiconductors culminating in the first room temperature operational, erbium-doped silicon light emitting diode; the monolithic integration of MOSFET driver circuitry with Si:Er LEDs and Si/SiO2 waveguides; the process development silicon optical waveguides to yield low loss microphotonic signal distribution; the fabrication and demonstration of the first waveguide-integrated microcavity resonators based on photonic crystal designs at a wavelength of 1.54 microns; the fabrication and demonstration of optical add/drop microphotonic circuits for high capacity WDM data distribution based on microring resonator filter junctions; and the process development and testing of high performance, heteroepitaxial Ge-on-Si photodetectors for microphotonic applications.
In addition to being the Thomas Lord Professor of Materials Science and Engineering at MIT and the founding Director of the MIT Microphotonics Center, Dr. Kimerling has also served as Director of the MIT Materials Processing Center (1993-2008) and was Head of the Materials Physics Research Department at AT&T Bell Laboratories when he joined the faculty of MIT as Professor in 1990. He has authored more than 350 technical articles and holds more than 50 patents. He leads the MIT-Industry team of the Communication Technology Roadmap.
Dr. Kimerling is the recipient of the 1995 Electronics Division Award of the Electrochemical Society, the 1996 MIT Perkins Award for Excellence in Graduate Advising, the 1997 Humboldt Senior Scientist Research Award and the 1999 John Bardeen Award of TMS. He is a Fellow of the American Physical Society, the AAAS, TMS, MRS and the School of Engineering of the University of Tokyo.


EasyScan for medical professionals aim to highlight the advantages of retinal screening in a world of an increasingly aging population and chronic diseases. Access to care becomes progressively difficult and waiting times rise. By employing EasyScan in your practice, the throughput-rate of patients can be drastically increased due to the fact that the test only takes 3 minutes and no dilation is needed.
Benefits of superior retinal imaging with EasyScan
- Enjoy the benefits of SLO technology and capture high-quality images easily for accurate diagnosis.
- Reduce examination time, capture images through small pupils and increase patient satisfaction with the fact that no dilation is ever needed.
- EasyScan is a compact, light-weight device that will fit every office space and enable it to be easily transported between locations.
- EasyScan can be used in single practices, mobile workstations and with multiple review stations.
EasyScan dual color cSLO technology
EasyScan is a dual color cSLO retina camera: it scans with and infrared (785 nm) and pure green (532 nm) laser beam. The different colors are related to different penetration depth of the retina. The green image is reflected at the RNFL (retinal nerve fiber layer) showing the microvascular structure up to the 4th bifurcation. The infrared light is reaching the choroidal vessel layer.
Find out more about the SLO technology in the EasyScan studies


Joakim Lindblad received his Ph.D. at the Centre for Image Analysis,
Uppsala University, Uppsala, Sweden in January 2003. He got his
M.Sc. degree in Engineering Physics from the University of Uppsala,
Sweden in 1997.
His research interests include finding general methods for segmentation
of images, feature extraction and classification, possibly with feedback
to the segmentation step. Presently working with segmentation of
fluorescence microscopy images of cells in 2D and 3D.
Centre for Image Analysis
SE-751 05 Uppsala, Sweden
Phone: +46 18 4713460


TU Dresden’s PRUUVE project wins Photonics21 In
On June 30, 2022, Photonics21 hosted the “Photonics Partnership Annual Meeting”, the most important event of the European photonics industry, in Brussels. Over 300 guests, including CEOs, heads of research institutes and representatives of the European Commission and EU Member States, attended the event. In this context, Dresden physicist Tim Achenbach represented the PRUUVE team and was awarded a very special honor: the Photonics21 Innovation Award, which aims to encourage more entrepreneurship in the field of photonics. “We are very happy to have been able to present our idea to the European photonics community and convince the jury with our new UV sensor. This award is a great honor for us and we would like to sincerely thank Photonics21 and the award committee,” says Tim Achenbach.
In their PRUUVE project (Phosphorescent response under UV excitation), the three physicists are developing UV sensor sheets for the precise measurement of UV dose in industrial applications, such as the sterilization of air, water and surfaces or for the rapid curing of coated surfaces. , printing inks, paints or adhesives. The foils are attached directly to the surfaces or components to be irradiated, where they allow optical control of the UV dose. The new technology thus offers fast and reliable monitoring of the success of UV drying and UV disinfection, thus avoiding unnecessary waiting times and overdosing.
“We are convinced of our versatile PRUUVE technology and will develop new applications and products in the years to come”, adds Dr. Philipp Wellmann. After all, in addition to being used as optical sensors, films can also be used as rewritable labels and much more.
For more information: www.pruuve.de
Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of press releases posted on EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.


So you are looking to buy a Sony Camcorder 4K for a cheap price? If so then we have great news as we have found the absolute cheapest deals on Sony Camcorder 4K and displayed them below so that you can save a lot of money when buying online.
So the cheapest deals we could find on Sony Camcorder 4K are as follows:
- Newly developed Exmor R CMOS sensor has 1.6x larger pixels than its predecessor, giving better low light quality
- HD 5 Axis Stabilization - combining Sony's incredible Balanced Optical Steady Shot with Intelligent Active Mode delivers stable movies even while running and zooming
- The new Zeiss lens features a 20x optical zoom and a wide angle of 26.8mm giving you greater flexibility in your shooting.This product is compatible with Final Cut Pro X and iMovie
- A new microphone structure reproduces sound in the most faithful way in both stereo and 5.1ch surround sound.Battery type : InfoLITHIUM with AccuPower meter system (V Series)
- FDRAX53 Handy cameraRechargeable Battery Pack NPFV70AC AdaptorPower CordHDMI Micro CableMicro USB CableOperating Guide
- 4K image quality - shoot 4K footage that contains about four times more detail than Full HD (3840 x 2160 pixels vs 1920 x 1080) footage
- Extra-light, extra-compact body - the FDR-AX33 is over 30% smaller and over 20% lighter than current model the FDR-AX100, making it the mobile 4K camcorder
- Balanced Optical SteadyShot - enhanced image stabilisation enables blur-free footage even when the recording circumstances are shaky or bumpy
- Enjoy total customisation with ergonomic manual controls, use the intuitive multi-purpose manual ring to adjust zoom, focus, exposure, IRIS, shutter speed, AE shift, or white balance shift mode after using the manual button to select the mode
- Dual Video Recording - record two movies at the same time, one in the maximum-quality XAVC S or AVCHD format and another in MP4 format
- Image quality is assured with a 1.0 type Exmor R sensor and Zeiss lens, NFC and Wi-Fi make it easy to share your work
- Cinema-quality 4K Ultra HD recording
- 1.0 inch type Exmor R CMOS sensor
- ZEISS Sonnar T* lens with 12x optical zoom
- Sensor:1 / 3.95 inch Exmor R CMOS sensor with 6.59 MP.
- Integrated LED light and Sony G lens with 12x optical zoom, 24x clear, 200x digital, servo / manual.
- Dots:1 cm (0.39 inches), OLED 1.44 million, LCD monitor 7.5 cm (3 inches), 0.921 million.
- --In the event that this product is sold and dispatched by a private seller, the respective seller's own terms and conditions apply.
- Contains:Sony HXR-MC2500E NXCAM AVCHD shoulder camcorder, black, lens hood, lens flap, shoe cover, viewfinder eyecup, microphone, windscreen, video treble filter, USB cable, rechargeable battery (NP-F570), power adapter AC-L100C.
- Optical SteadyShot with Intelligent Active Mode
- XAVC S (HD 50 Mbps) and AVCHD recording
- Exmor R CMOS sensor. 60x clear image zoom
- 26.8 mm wide-angle ZEISS lens with 30x optical zoom
- LCD angle adjustment-Maximum opening angle is 90 degree and maximum turning angle is 270 degree
- Keep your footage steady and reduce image blur with Sony's Optical SteadyShot
- A 26.8mm wide-angle high quality Carl Zeiss Vario Tessar Lens offers you more creative freedom - whether you're shooting cramped interiors, sprawling cityscapes or vast open spaces.
- Let the scene come to you with powerful 30x optical zoom and 60x Clear Image Zoom.
- Share your movies anywhere thanks to the Built-In Projector
- The fast BIONZ X image processor in combination with the detailed Exmor R CMOS sensor allows to faithfully reproduce every aspect of the scene in precise, natural detail.
- Ultra-HD 4K images, pro-quality sound, and a full range of manual controls. Create truly life-like footage
- Cinema-quality 4K Ultra HD recording
- Precision Sony G Lens with 20x zoom
- Extensive manual control for creativity
- 4K Ultra HD (3840 x 2160) recording
- Balanced Optical SteadyShotTM
- 29.8mm ZEISS Vario-Sonnar T* lens
- 10x optical zoom with 15x Clear Image Zoom (4K)
- Versatile manual settings
A Guide to Buying a Sony Camcorder 4K
So buying a Sony Camcorder 4K is a very popular option as they are just brilliant but we have some useful information below that can help with your purchase.The term “4k” comes from Hollywood. The UHD specifications used in Hollywood films are slightly different (4,096 pixels wide).
So with so many confusing names and manufacturer’s not adhering to set terminology, how in the world can you find a cheap TV with this new exciting technology? Luckily, it doesn’t take much to get the best from your new shiny 4k TV.
Size of the BesselBe aware your set may be left in Vivid mode by default!
Most TVs arrive with at least one preset picture mode that delivers remarkably accurate colors and contrast and will suffice for the average viewing situation. Although the general idea 4K TVs is amazing i.e. the whole idea of having a better experience when you buy one of these TVs. Virtually anyone who have seen a 4K TV on display would want one for themselves. The sad truth however is that these TVs don’t come cheap. The can be quite expensive, which is why most people don’t really bother themselves about buying one just yet.


Improved Registration for Vehicular AR using Auto-Harmonization
Author: Eric Foxlin, Thomas Calloway, Hongsheng Zhang, Thales
Published: IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, VOL. 21, NO. 12, DECEMBER 2015
This paper describes the design, development and testing of an AR system that was developed for aerospace and ground vehicles to meet stringent accuracy and robustness requirements. The system uses an optical see-through HMD, and thus requires extremely low latency, high tracking accuracy and precision alignment and calibration of all subsystems in order to avoid mis-registration and “swim”. The paper focuses on the optical/inertial hybrid tracking system and describes novel solutions to the challenges with the optics, algorithms, synchronization, and alignment with the vehicle and HMD systems. A system accuracy analysis is presented with simulation results to predict the registration accuracy. Finally, a car test is used to create a through-the-eyepiece video demonstrating well-registered augmentations of the road and nearby structures while driving.


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Measuring The Dimensions of 3D Rectangular Objects Using A 2D Camera
Logistics automation industry requires cost-effective and practical solutions to measure the object dimensions.Inthis research, it is aimed to determine the dimensions of rectangular objects such as boxes practically and economically by using a 2-dimensional (2D) camera. This paper proposes using computer vision technics for this purpose. Firstly, predefined aruco markers are used as reference measurements, and then the dimensions of boxes are computed proportionally. The relationship between the calculated and the actual measurements demonstrates good agreement withaverage error rangesbetween 1.6% and 13%.
Keywords - Aruco Marker,Corner Detection, Edge Detection, Image Processing, Machine Learning.


Privacy glasses that let you go incognito in a world filled with facial recognition software
- Invisibility Glasses by AVG, a software security company, use infrared LED light and retro-reflective materials to block a clear facial capture
- Glasses, which are only a prototype, break facial detection software, such as technology used on Facebook
The developers of the privacy glasses, AVG Innovation Labs, said that with the advancement in facial recognition technologies like Facebook’s DeepFace system, they began investigating how technology can be used when it comes to securing online privacy.
DeepFace will be able to determine whether two captured faces are of the same person with 97.25 per cent accuracy.
And this coupled with other advancements left developers questioning how to combat privacy.
The glasses, through the use of infrared LED light and retro-reflective materials, block a clear facial capture of the wearer, developers claim.


The Petromax HK500 is among the most famous lamps in the world. Thanks to its impressive light output of 400 watts, the lamp combines a unique technique with an elegant design. Since the Petromax high pressure lamp was invented in 1910, its spellbinding brightness gives light to the darkness.
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A unique high pressure technology & high-quality German manufacturing The excellent light output of the Petromax lamp results from a simple, yet fascinating principle: The kerosene under pressure is conducted into a carburettor, where the evaporated fuel reacts to the mantle impregnated with luminous salt, which results in a bright, warm light. In order for this principle to work flawlessly, the more than 200 pieces of the lamp are still assembled by hand.
The right accessory for each situation Besides various reflectors, and storage and transport bags, many other accessories are suitable for Petromax lamps. For example, they can be turned into a stove or a radiator. Thanks to this vast range of high-quality accessories, the Petromax lamp can be personalized.
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Blue light is a high-energy, short-wavelength light that becomes part of the noticeable light range. It exists in all-natural sunshine and also is in charge of heaven shade of the skies.
Resources of Blue Light
Aside from sunshine, digital tools such as mobile phones, computer systems, as well as LED lights give off considerable quantities of blue light. Extended direct exposure to these resources can have unfavorable results on our eyes as well as total wellness.
The Effect of Blue Light on Eyes
Just How Does Blue Light Affect Our Eyes?
Blue light can visit https://justprintcard.com/enhancing-visual-wellness-the-benefits-of-blue-light-filter-glasses/ pass through the eye and also get to the retina, possibly triggering damages with time. It is understood to add to electronic eye pressure, interrupt rest patterns, and also raise the danger of age-related macular deterioration.
Digital Eye Stress
Extended direct exposure to displays can result in electronic eye pressure, defined by signs like eye exhaustion, dry skin, as well as obscured vision. Blue light filter glasses intend to relieve these signs.
Blue Light Filter Glasses: Just How Do They Function?
Device of Blue Light Filters
Blue light filter glasses are developed with unique coverings that precisely obstruct or take in blue light while enabling various other wavelengths to go through. This lowers the quantity of blue light that gets to the eyes.
Sorts Of Blue Light Filter Glasses
There are various sorts of blue light filter glasses offered, consisting of prescription as well as non-prescription choices. Some are particularly made for players, while others deal with white-collar worker as well as people seeking basic security.
Many clinical research studies have actually checked out the impacts of blue light filter glasses. They recommend that putting on these glasses can enhance rest high quality, lower eye stress, and also secure the retina from prospective damages.
Law of Rest Patterns
Among the considerable advantages of blue light filter glasses is their capability to control body clocks. By minimizing direct exposure to blue light at night, they can aid boost the high quality of rest.
Picking the Right Blue Light Filter Glasses
Variables to Think about
When picking blue light filter glasses, aspects such as lens top quality, design, and also fit are important. It’s vital to pick a set that fits your demands and also way of life.
Examination with an Eye doctor
If you are experiencing serious eye pain or vision problems as a result of evaluate time, getting in touch with an eye doctor is a good idea. They can supply tailored referrals for blue light filter glasses.
To conclude, the scientific research behind blue light filter glasses is based in the understanding of exactly how blue light impacts our eyes as well as general health. These cutting-edge glasses options offer a sensible strategy to minimizing the possible injury brought on by extended direct exposure to displays. By uniquely obstructing blue light, they supply a guard of defense for our eyes, lowering eye stress as well as boosting rest top quality. To guard your aesthetic health and wellness in today’s electronic globe, think about purchasing a set of blue light filter glasses.
Frequently asked questions
Do blue light filter glasses help everybody?
Blue light filter glasses can profit most people that invest prolonged durations before displays. Nevertheless, their efficiency might differ from one person to another.
How much time should I put on blue light filter glasses daily?
It’s suggested to put on blue light filter glasses throughout prolonged display time, specifically at night. Speak with an eye doctor for individualized referrals.
Can I put on blue light filter glasses over my prescription glasses?
Yes, there are alternatives for prescription blue light filter glasses that can be put on over your existing glasses.
Where can I buy top quality blue light filter glasses?
You can discover a variety of blue light filter glasses on the internet and also at optical shops. Guarantee they satisfy the essential top quality requirements and also offer the degree of defense you need.
Are blue light filter glasses ideal for youngsters?
Yes, blue light filter glasses are readily available for youngsters and also can be useful in decreasing eye pressure triggered by long term display time.


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AEM-200 FreeForm Lens Engraving System provided by SALEM Vision
The AEM-200 is an innovative laser-free engraving system designed to accurately and cost effectively engrave freeform lenses. Developed by opticians for opticians at Berkshire Laboratories in England, the design elegantly simplifies the engraving process by eliminating complicated and expensive components used in conventional laser engraving units. The AEM-200 features a micro-tipped stylus controlled by Berkshire Laboratories' (UK) patent pending advanced engraving system coupled with PCT technology to ensure fast and accurate engraving of freeform lenses. It also features automatic curvature control to ensure uniform markings in all bases and successfully engraves any organic, high-index, polycarbonate and TrivexTM lens materials. As with Berkshire Laboratories’ CNC OptiDrill, their new FreeForm Lens Engraver offers affordability, ease of operation and maintains optimal performance in every lab.
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