Patent ID: 6491851
Filing Date: 2002-12-10
Classification: B29C,B29D,B29K,B29L

Abstract:
A process for producing an ophthalmic lens comprising a surface antiglare utility microstructure and a sight-correcting geometry, the process comprising transferring an interferentially-determined microstructure to a surface of a lens from a mold comprising an internal surface with a slight-correcting geometry that supports the microstructure, wherein transferring the interferentially determined microstructure to the surface of the lens comprises:forming a layer of a first optical material in the mold, the layer formed on an internal face of the mold which face supports a replica of the microstructure; hardening the layer of the first optical material; introducing to the mold a second optical material; hardening the second optical material; and obtaining an ophthalmic lens comprising a substrate of the hardened second optical material and a surface of the hardened first optical material, the surface having the microstructure.