Patent ID: 6875090
Filing Date: 2005-04-05
Classification: B24B,B24D

Abstract:
1. An apparatus for finishing an optical surface of a lens, the apparatus comprising: a conformable lap for finishing surface of the lens comprising: wherein the substance is its non-solid form permits movement of the work surface relative to the base surface to conform to the curvature of the optical surface, and the substance in its solid form fixes the work surface in a position conforming to the curvature of the optical surface and retains said conforming position during finishing of the optical surface; and a pad compensating device being interposed between the work surface of the conformable lap and the optical surface during formation of the work surface to compensate for a thickness of a finishing pad during finishing process, wherein the pad compensating device has a thickness substantially equal to the thickness of the finishing pad, and wherein the pad compensating device includes a membrane member that is stretchable to eliminate formation of wrinkles, and wherein the membrane member of the pad compensating device is fabricated from spandex material.