Patent ID: 7740519
Filing Date: 2010-06-22
Classification: B24B

Abstract:
1. A method for processing a chamfering of an eyeglass lens, comprising the steps of: preparing an eyeglass lens having an anterior refracting surface and a posterior refracting surface; inputting a width of a chamfering and a range of the chamfering from a periphery of a lens shape of the eyeglass lens to form a groove in an edge surface of the eyeglass lens or a V-shaped portion on the edge surface and a front edge portion on the edge surface at one side of the groove or V-shaped portion disposed adjacent to the anterior refracting surface, and forming a back edge portion on the edge surface at a second side of the groove or V-shaped portion disposed adjacent to the posterior refracting surface; displaying controlling the chamfering of the posterior refracting surface so that a width of the back edge portion in a thickness direction of the eyeglass lens is larger than a width of the front edge portion.