Patent ID: 7507142
Filing Date: 2009-03-24
Classification: B24B,B28D,Y10T

Abstract:
1. An eyeglass lens processing apparatus comprising: a drilling tool for forming holes in a refractive surface of an eyeglass lens to attach a rimless frame to the lens; a lens chuck shaft that holds and rotates the lens; an inclining device that relatively inclines the drilling tool relative to the lens; a movement mechanism part that relatively moves the drilling tool in a rotating axis direction thereof relative to the lens; a target lens shape and layout input section that inputs data of a target lens shape of the frame and data of a layout of the lens with respect to the frame by a communication or an input key; a hole-position input section that inputs data of hole positions which are designated in a two-dimensional coordinate system on the target lens shape by a communication or an input key; a section that measures or inputs a curved shape of the refractive surface of the lens; a calculation section that calculates each modified two-dimensional hole position so that a two-dimensional spacing between the holes coincide with a three-dimensional spacing between the holes along the refractive surface of the lens based on the each input two-dimensional hole position and the curved shape, and determines hole processing data based on the each modified two-dimensional hole position; and a control section that controls the movement mechanism part based on the determined hole processing data.