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It has launched a coating, Crizal, that provides lenses with resistance to scratches, reflections and stains. Essilor partnered with PPG of the United States to develop Transitions, a technology that allows lenses to become darker or lighter depending on the intensity of ambient light.
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] From inception the company has been a joint ...
EssilorLuxottica SA is an Italian-French vertically integrated multinational corporation based in Paris and founded on 1 October 2018 from the merger of the Italian Luxottica with the French Essilor. The eyewear -focused group designs, produces and markets ophthalmic lenses, optical equipment, prescription glasses and sunglasses .
Varilux. Varilux is a brand name belonging to Essilor International, a producer of corrective lenses. The first version of the lens was invented by Bernard Maitenaz and released in 1959, and was the first modern progressive lens to correct presbyopia. The progressive lens is characterized by correcting near, intermediate and far vision.
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.
Anti-reflective coatings are often used in camera lenses, giving lens elements distinctive colors. Such colors indicate the wavelength of visible light least affected by the antireflective properties of the coating. A variety of colors can be produced whose precise hue depends entirely on the thickness of the coating.
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