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In the end, Maintenaz's invention would be fixed between Essel's bifocal lens, the Diachrolux, and its trifocal lens, the Trilux. Without much brainstorming, Maintenaz's progressive lens was given a name following suit with the other premium products: Varilux. [7] The lens was launched officially in May 1959 at the Hotel Lutetia in Paris, France.
Crizal Prevencia, launched in 2013, is a lens that lets in beneficial light and filters out blue-violet and UV rays. In 2014, Essilor won a Fibre Innovation Award for Crizal Prevencia at an event at the Paris Pierre and Marie Curie University celebrating advances in technology that benefit society.
Progressive lenses (those that function as both reading and distance glasses) start at $295, while tinted prescription lenses cost an additional $100 from the base model.
Freeform designs are tailored to each prescription and do not have this problem. [5] Since the 1980s, manufacturers have been able to minimize unwanted aberrations by: improvements in mathematical modeling of surfaces, allowing greater design control; extensive wearer trials; and; improved lens manufacturing and measurement technology.
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.
After the war, the Armorlite Lens Company in California is credited with manufacturing the first CR-39 eyeglass lenses in 1947. CR-39 plastic has an index of refraction of 1.498 and an Abbe number of 58. CR-39 is now a trade-marked product of PPG Industries. [2]
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