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Contents. Photochromism. A photochromic eyeglass lens, after exposure to sunlight while part of the lens remained covered by paper. Photochromism is the reversible change of color upon exposure to light. It is a transformation of a chemical species ( photoswitch) between two forms by the absorption of electromagnetic radiation ...
Eyewear and sunglasses. Owner. Bollé Brands. Number of employees. 52. Website. www.serengeti-eyewear.com. Serengeti Eyewear is a sunglasses line owned by Bollé Brands. Their main focus is eye protection, of which the company researches and develops technology such as photochromic lenses, polarized lenses, spectral control, among others.
A photochromic eyeglass lens, part of the lens darkened after exposure to sunlight while the other part remained covered. A photochromic lens is an optical lens that darkens on exposure to light of sufficiently high frequency, most commonly ultraviolet (UV) radiation. In the absence of activating light, the lenses return to their clear state.
The Product: HD Vision Sunglasses The Price: HD Vision Ultra, online $10 plus $6.99 shipping and handling: $9.99 in some retail stores: HD Vision WrapAround, online $14.99 plus $7.95 shipping and ...
Sunglasses instantly make Us feel glamorous, like we’re a celebrity hiding from the paparazzi. No pictures, please! They also cover up our puffy eye bags if we had a little too much fun the ...
Hunter S. Thompson was known for wearing yellow-tinted driving glasses. When driving a vehicle, particularly at high speed, dazzling glare caused by a low Sun, or by lights reflecting off snow, puddles, other vehicles, or even the front of the vehicle, can be lethal. Sunglasses can protect against glare when driving.
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