SURFACE CASTING ONTO A POLYCARBONATE PHOTOCHROMIC SUBSTRATE
摘要
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.
申请公布号
WO2007145611(A9)
申请公布日期
2008.03.20
申请号
WO2006US22153
申请日期
2006.06.07
申请人
ESSILOR INTERNATIONAL COMPAGNIE GENERALE D'OPTIQUE;BERZON, RONALD, A.;JOHNSON, ERIC;MOSSE, HERBERT