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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]
Many inorganic substances also exhibit photochromic properties, often with much better resistance to fatigue than organic photochromics. In particular, silver chloride is extensively used in the manufacture of photochromic lenses. Other silver and zinc halides are also photochromic. Yttrium oxyhydride is another inorganic material with ...
Many anti-reflection lenses include an additional coating that repels water and grease, making them easier to keep clean. Anti-reflection coatings are particularly suited to high-index lenses, as these reflect more light without the coating than a lower-index lens (a consequence of the Fresnel equations). It is also generally easier and cheaper ...
In July 2024, EssilorLuxottica agreed to buy US streetwear brand Supreme for US$1.5 billion, expanding its brand portfolio beyond eyewear and lenses for the first time. [ 26 ] [ 27 ] [ 28 ] Days later, it was reported that Meta was in talks to purchase a 5% stake in EssilorLuxottica.
The actor, 61, wished his followers on Instagram a "Happy New Year" on Monday, Jan. 6, while also alerting fans about people impersonating him online and soliciting money.
The Queen acknowledged in her Jan. 13, 2020 statement that there would be a “period of transition” as Harry and Meghan figured out their new roles, and it was later announced that there would ...
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