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AssigneeEssilor International (Compagnie Generale d'Optique)
InventorsCedric Lemaire, Cedric Begon, Konogan Baranton, Ahmed Haddadi, Patrice Szymanski, Gerard Poirrier
Estimating the term…
Method of shaping an ophthalmic eyeglass lens presenting two main optical working faces and including firstly a substrate made of a first material and presenting two main faces corresponding to the two main faces of the lens, and secondly at least one coating film made of a material distinct from that of the substrate, the coating film being previously secured on at least one of the main faces of the substrate, includes: cutting the lens by machining with a first tool over at least the thickness of the previously secured coating film, to define internally a working central portion of the coating film that presents a reduced outline; trimming the edge face of the substrate along the desired outline by machining with a second distinct tool, without machining the working central portion; and finishing the edge face of the substrate without machining the working central portion.
A method of shaping an ophthalmic eyeglass lens to have a desired outline, the lens presenting two main optical working faces and comprising firstly a substrate made of a first material and presenting two main faces corresponding to the two main faces of the lens, and secondly at least one coating film made of a material distinct from that of said substrate, said coating film being previously secured on at least one of the main faces of the substrate, the method comprising the following steps:
Dependencies are inferred from the claim text.