Process for forming plastic lenses for glasses, optical quality.

摘要

METHOD FOR FORMATION OF LENSES FOR SUNGLASSES WITH QUALITY OPTICAL PLASTIC PRESENTS a fast, fairly cheap and simple lens production PROGRESSIVE or multifocal PLASTIC FINISHED FROM A preformed lens having a predetermined vision correction (IE, curvature or prescription) at its optical center. The method comprises providing a mold; PROVIDING A resin composition optical quality; Providing a lens preformed plastic CONTACT LENS WITH MOLD PREFORMED SO AS SURFACES preformed lens and the mold to form a cavity which encloses the resin component; And curing the resin composition. In the cavity formed by the preformed lens and the mold it is shaped, AMONG OTHER THINGS, (1) for matches the curvature change Deseado and (2) FOR THE CORRECTION OF THE LENS IN THE CENTER OPTIC LENS RESULTING be substantially equal (preferably equal) TO DEFAULT LENS cORRECTION IN THE CENTER OPTIC of the preformed lens. The preformed lens can be molded ALSO WITH A THIN LAYER OF PRESCRIPTION NO CARRIER SERVING AS THE REGION PROGRESSIVE MULTIFOCAL LENS OR FINISHED. Methods to MOLDEAR LENSES WITHOUT USING CONVENTIONAL JOINTS OPTICS RESULTING SIDES ARE PRESENTED. These methods also allow restocked the right place OPTIC CENTER REGARDING PRESCRIPTION MULTIFOCAL PROGRESSIVE OR, PREFERABLY USE WITHOUT SEALS OR CONVENTIONAL OPTICAL CENTER OPTIC shifters.