PROGRESSIVE MULTIFOCAL ASTIGMATISM SPECTACLE LENS

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing lenses of optical performance equal to or higher than that of progressive multifocal astigmatism spectacle lenses having progressive surfaces and astigmatism surfaces in combination on the back refraction surfaces of the lenses at a low cost.;SOLUTION: The progressive multifocal astigmatism spectacle lenses having the astigmatism surfaces of progressively changing aspheric surfaces on the front refraction surfaces of the lenses and the progressive surfaces on the back refraction surfaces are manufactured by a photosetting or lamination system.;COPYRIGHT: (C)2002,JPO