PROCESS FOR APPLYING A FILM STRUCTURE ONTO A LENS BLANK

摘要

A process for applying a film structure (10) onto a lens blank (1) is improved by implementing a wedge piece (30) when the film structure is pressed against the lens blank using a resilient cushion. The wedge piece forces the film structure to conform more tightly to the lens blank within a depression track (4) existing on said lens blank. Then, the lens blank assembled with the film structure has a final optically useful area which is increased.