Patent ID: 9561572
Date: 2017-02-07
CPC Classifications: B24B

Claim:
1. An eyeglass lens processing apparatus comprising: a processing unit configured to form, on a peripheral edge of a lens, a bevel or a groove for fitting the lens to a frame of an eyeglass; a processor; and memory storing computer readable instructions, when executed by the processor, causing the eyeglass lens processing apparatus to: calculate data of the bevel or the groove to be formed on the peripheral edge of the lens based on frame shape data of the frame or demonstration lens shape data which is shape data of a demonstration lens having the bevel or the groove fitted to the shape of the frame; and approximate a front-side foot width, which is a width between a position of the bevel or the groove to be formed on the lens and a position of a front edge of the lens, to a target value by correcting the calculated data of the bevel or the groove; wherein the computer readable instructions, when executed by the processor, causes the eyeglass lens processing apparatus to acquire at least one of spherical component data, cylindrical component data, and distortional component data based on the shape of the frame or the demonstration lens; and wherein the computer readable instructions, when executed by the processor, causes the eyeglass lens processing apparatus to reflect distortional component data in the corrected data of the bevel or the groove.