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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. Photochromic lenses may be made of polycarbonate, or another plastic. Glass lenses use visible light to darken.
Serengeti sunglasses include tinted photochromic and polarized lenses. [ 4 ] Tucker Viemeister designed aviator style sunglasses in sepia tones for Serengeti in the 1980s.
Distance vision corrections are made by re-adjusting the lens for distance, instead of by tilting and/or rotating the head to view object through the best part of the lens for the distance. Adjustable focus lenses, like single-focus lenses, also reduce image-jump and spatial distortion in the field of view associated with traditional multi ...
These stylish and comfortable cycling sunglasses—from Roka, Julbo, Smith, and other brands—improve trail visibility, enhance road shadows, and stay put.
Car windscreens filter out UV light, [53] [54] slowing and limiting the reaction of the lenses and making them unsuitable for driving as they could become too dark or too light for the conditions. Some manufacturers produce special photochromic lenses that adapt to the varying light conditions when driving.
The best lenses for travel will let you shoot almost anything, and save some space in your bag! Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 ...
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