Patent ID: 6328635
Filing Date: 2001-12-11
Classification: B24B

Abstract:
A device for the display of an engravement shape of an eyeglass lens, said device comprising:means for measuring an edge thickness of each of unmachined eyeglass lenses at a portion of a lens peripheral shape of an eyeglass frame on the basis of data on the lens peripheral shape of the eyeglass frame;means for judging a type of each of the eyeglass lenses on the basis of the edge thickness and for classifying the eyeglass lenses into groups comprising plus lenses, flat lenses and minus lenses; anda display for displaying an engravement shape of an edge end of each eyeglass lens after each of the eyeglass lenses has been machined along the lens peripheral shape as an estimated engravement shape, and displaying said group of the plus lenses, the flat lenses or the minus lenses to which each eyeglass lens belongs on the basis of the result of the judgment made by said judging means.