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US 2017/0282470 A1Published application
Optical Lens Comprising a Protective Removable Film
AssigneeEssilor International (Compagnie Generale d'Optique)
InventorsHaifeng SHAN, Richard MUISENER, Gerald FOURNAND, Aude LAPPRAND
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Abstract
The invention concerns an optical lens comprising (i) a temporary coating at least partially covering a surface of the lens, said temporary coating comprising an outermost layer mechanically degradable through friction and/or contact; (ii) a removable film having opposite first side and second sides which adhere to said outermost layer through its first side, wherein—the first side of the film has a roughness Rq lower than 750 nm and the first side of the film has a surface energy lower than 38 mJ/m2.
Claims16
An optical lens comprising
- (i) a temporary coating at least partially covering a surface of the lens, said temporary coating comprising an outermost layer mechanically degradable through friction and/or contact;
- (ii) a removable film having opposite first side and second sides which adhere to said outermost layer through its first side, wherein
- the first side of the film has a roughness Rq lower than 750 nm and
- the first side of the film has a surface energy lower than 38 mJ/m2.
1 more element
Dependencies are inferred from the claim text.