When design manner null of the promotive refracting power glass lens, the glasses and the glass lens

摘要

PROBLEM TO BE SOLVED: To provide a progressive refraction lens which suppresses image distortion and blurring inevitably caused by a progressive refraction lens and can improve feeling of wear.;SOLUTION: A double-sided progressive lens using both the outer and inner surfaces as progressive surfaces is prepared, the face addition of the outer surface is made minus and progressive surface profile is designed so that the average surface refraction distributions of the outer and inner surfaces are made similar.;COPYRIGHT: (C)2004,JPO