Method for manufacturing an optical element with a functional film
AssigneesEssilor International, Shamir Optical Industry Ltd.
InventorsYouval Katzman, Michel Matz
Life of this patent
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Abstract
Disclosed is a method for manufacturing an optical lens including the following successive steps: a step of providing an optical lens attached to a blocking piece; a step of laminating a functional film on a surface of the optical lens; a step of obtaining an assembly constituted by the blocking piece, the optical lens and the functional laminated film; a step of cutting the excess film directly on the assembly, so as to reduce the film shape; and a step of deblocking the optical lens with the film, and the blocking piece.
Claims11
A method for manufacturing an optical lens, the method comprising the following successive steps:
- a step of providing an optical lens attached to a blocking piece at a convex surface of the optical lens, the blocking piece acting as a receptacle to receive the optical lens;
- a step of laminating a functional film on a concave surface of said optical lens opposite the convex surface to obtain a laminated lens surface;
- a step of obtaining an assembly constituted by the blocking piece, the optical lens and the functional laminated film, the optical lens with the functional laminated film being fastened to the blocking piece by a bonding material;
- a step of cutting a film excess directly on said assembly to reduce the film shape, the film excess comprising parts of the functional laminated film which extend beyond an edge of the optical lens and thus overhang the edge;
- and
- a step of deblocking the optical lens with the functional laminated film, and the blocking piece, the deblocking step being carried out with at least a pressurized fluid jet configured to separate the optical lens with the functional laminated film from the bonding material.
Dependencies are inferred from the claim text.