Photochromic transition sunglasses for motorcycle riding, golf, skiing and all outdoor sports. We lab tested these with other photochromic sunglass brands that ...
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Reviewed: Prescription cycling sunglasses Lenses with photochromatic or photochromic technology (often referred to by the brand name Transitions) change from dark to light, depending on the conditions. This is great when you encounter changing light throughout your ride. (Or, for rides that [...]
Automatic Sunglasses, No Battery! Even the cheapest sunglasses filter out near 100% of the UV, the reason is simple, plastic does not transmit UV very well. There are some thing that do transmit UV but they are rare. Even regular glass is not real good at it. That is why many [...]
via Runner's World]
The Julbo Aerolite UTMBs Are So Light You'll Forget You're Wearing Sunglasses The Aerolite is an exceptional pair of sunglasses for long runs on the road or trail. The frameless design weighs less than an ounce, and flexible rubber pieces on the arms make them more comfortable than most. A bonus for trail runners: The [...]
Global Plano Sunglasses Market Professional Survey Report 2018 categorized by (Photochromic Spectacles, Coated ... A new market research report titled Global Plano Sunglasses Market Professional Survey Report 2018 has been added to the database of Trusted Business Insights (TBI). In this report the Plano Sunglasses Market is valued (valuation provided in sample [...]
Photochromic lenses are lenses that darken on exposure to specific types of light, most commonly ultraviolet radiation. Once the light source is removed, the lenses will gradually return to their clear state. Photochromic lenses may be made of glass, polycarbonate, or another plastic.
Photochromatic lenses contain millions of molecules of silver chloride or another silver halide embedded within them. These molecules are transparent to visible light in the absence of ultraviolet rays, which is normal for artificial lighting. When exposed to ultraviolet rays, as in direct sunlight, the molecules undergo a chemical process that causes them to change shape and absorb portions of the visible light, causing the lenses to darken. This process is reversible; once the lens is removed from...
com introduces a new range of photochromic eyeglasses that automatically darken when exposed to sunlight. Photochromic lenses solve the problem of having to constantly switch between prescription eyeglasses and shades. From now on customers will be able to choose almost any eyeglass frame with a matching photochromic lens. Not only are photochromic eyeglasses convenient but they also provide 100% protection for your eyes from harmful UV radiation. These lenses tint to a darker shade when exposed to UV rays and the more intense the radiation is, the darker photochromic eyeglasses will be. Thanks to this feature your eyes will always get the amount of shade and protection necessary at all... Overall, photochromic eyeglasses are a great.
In less than a year, electrochromic sunglasses have gone from being experimental to an actual product, with Dutch startup Ctrl announcing its tint-on-demand Ctrl One cycling glasses just this month. Electrochromic sunglasses are similar to traditional photochromic transition eyeglasses, in that their lenses automatically switch from clear to tinted when exposed to ultraviolet light. That said, while photochromic lenses take several seconds to make the change, electrochromic lenses do so instantly. Additionally, their users can switch between clear and tinted modes manually – this could be particularly useful in situations such as driving, in which photochromic lenses won't darken because they're shaded from the sunlight.
via Tech Times]
New Lens Could Turn Eyeglasses to Sunglasses Within Seconds: Here's how it Works The glasses and lenses were designed by the John Reynolds Research Group from the Georgia Institute of Technology, with the goal in mind of including features that are not presently found in transition or photochromic lenses. Study lead author Anna ... [...]
via Asia One Your Health]
Various shades of protection: Zooming in on photochromic lenses They are good for those who prefer not to carry a pair of prescription sunglasses around, said Dr Koh, who works at Pearl's Optical. However, most photochromic lens brands do not darken significantly in the car. This is because they react primarily to UV ... [...]
Best driving sunglasses - evo Essentials Two technological facets tend to define sunglasses – the construction of the frames and the properties of the lenses. Serengeti offers two types of lenses – glass and its more resilient ‘Polar PhD’. Both are aimed at drivers and use photochromic ... [...]
via Men's Journal]
UVEX Variotronic Sunglasses With a sea of high-performance shades available, why did the Uvex Variotronic sunglasses make the list? Although photochromic (transition lenses) technology has been around for quite a while, most lenses react to the changing sunlight too slowly for cycling. [...]
via Men's Journal]
UVEX Variotronic Sunglasses - Best of 2015 Eurobike With a sea of high-performance shades available, why did the Uvex Variotronic sunglasses make the list? Although photochromic (transition lenses) technology has been around for quite a while, most lenses react to the changing sunlight too slowly for cycling. [...]
Vuzix Corp. today unveiled the first augmented reality sunglasses with Amazon.com Inc.’s voice assistant built-in.Called the Vuzix Blade, the smart glasses announced at the Consumer Electronics Show in Las Vegas resemble a more traditional pair of sunglasses, unlike Vuzix’s previous iterations that had various protrusions. Now, all the various components fit within the sleeker-looking frames. Packed within the Vuzix Blade’s frame is a quad-core ARM central processing unit, an 8-megapixel...
The fully automated BPC300 enables product testing of prescription and non-prescription sunglasses in accordance with international standards, and the development of photochromic formulations.The versatile BPC300 permits darkening and fading-back kinetic studies, whilst the modification of sample temperature, conditioning beam illuminance and spectrum accounts for a broad range of lens exposure conditions. An optional polarising lens capability is on offer for the extension of the measurement...
© robertsrob eye exam If you're shopping for a new pair of eyeglasses, you may get sticker shock when you pick up a pair of frames at your local optician's office. It certainly doesn't help that vision insurance doesn't always cover glasses — and when it does, it may not cover the whole cost. Another option is to take your shopping to the internet, where you'll find a better selection and lower prices. Here are six things to know when buying glasses online. Your Prescription Status You'll...