Essilor International (compagnie Generale D'optique)

Eric Johnson

Ronald A Berzon

Herbert Mosse

A system and method for providing photochromic segmented multifocal optical lenses. A latex primer formulation is provided for effectuating adhesion of a surface casting composition onto a lens having a photochromic coating. The method provides efficient, cost effective production of durable photochromic segmented lenses, via secure adhesion of a surface casting layer onto a photochromic substrate while maintaining desirable optical characteristics. A composite optical lens is advantageously formed having a photochromic base lens, a primer composition bonded to a convex surface of said base lens, and a cured casting composition bonded to said primer composition layer. The cured casting formulation includes a segment region to impart multifocal qualities onto the resultant composite optical lens.

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Pinellas Park, FL, United States of America

Eric Johnson