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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.
Sun spectacles is a term used by some opticians. Spekkies is a term used predominantly in southern Australia. Sun specs (also sunspecs) is the shortened form of sun spectacles. Sunglass a monocle version. [citation needed] Sun-shades can also refer to the sun-shading eyepiece-type, although the term is not exclusive to these. Also in use is the ...
A photochromic eyeglass lens, after exposure to sunlight while part of the lens remained covered by paper. Reversible photochromism is the basis of color changing lenses for sunglasses. The largest limitation in using photochromic technology is that the materials cannot be made stable enough to withstand thousands of hours of outdoor exposure ...
Some high-end sun glass brands can come with anti-scratch coating. There can be steps implemented to protect the sunglasses and prevent scratching or damage. Clean the sunglasses regularly using sunglasses cleaning products like a microfiber cloth, or a sun glass cleaner. Avoid leaving your sunglasses in extreme heat or cold, like a car.
Oakley, Inc. is an American company headquartered in Foothill Ranch, California, which is an autonomous subsidiary of Luxottica.The company designs, develops and manufactures sports performance equipment and lifestyle pieces including sunglasses, safety glasses, eyeglasses, sports visors, ski/snowboard goggles, watches, apparel, backpacks, shoes, optical frames, and other accessories.
Transitions Optical is a U.S.-based company known for manufacturing photochromic lenses, which darken on exposure to specific types of light. The company was founded in 1990. [1] In 1991, Transitions Optical became the first company to commercialize and manufacture plastic photochromic lenses. [2]
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