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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.
Costa Del Mar or simply Costa is an American manufacturer of polarized sunglasses based in Daytona Beach, Florida. [1] It is a wholly owned subsidiary of EssilorLuxottica. Their sunglasses are popular in the sport sunglasses market, and are considered good for outdoor sports practicing, such as Summer activities, recreational fishing and boating.
Sunglasses can improve visual comfort and visual clarity by protecting the eye from glare. [24] The lenses of polarized sunglasses reduce glare reflected at some angles off shiny non-metallic surfaces, such as water. They allow wearers to see into water when only surface glare would otherwise be seen, and eliminate glare from a road surface ...
Sometimes, and particularly in the dye industry, the term irreversible photochromic is used to describe materials that undergo a permanent color change upon exposure to ultraviolet or visible light radiation. Because by definition photochromics are reversible, there is technically no such thing as an "irreversible photochromic"—this is loose ...
Luxottica was founded in Agordo by Leonardo Del Vecchio in 1961 as a sunglasses manufacturer selling and branding under its own name. Del Vecchio quickly acquired numerous businesses in the pursuit of vertical integration, buying distribution companies rapidly and signing its first designer licensing agreement with Giorgio Armani .
Tifo (Italian:) is the phenomenon whereby tifosi of a sports team make a visual display of any choreographed flag, sign or banner in the stands of a stadium, mostly as part of an association football match. [1]
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