Patent ID: 7651221
Filing Date: 2010-01-26
Classification: B24B,G05B,Y02P

Abstract:
1. A process for automatic matching of raw lenses ( 6 ), produced in accordance with order data, to a predetermined spectacle frame and for machining the edges to produce an accurate fit, by means of at least one CNC-controlled spectacle lens edge-machining machine ( 1 ), which has an input interface, having the following steps: 1.1 the PD values for the left and right eyes are entered into a computer in accordance with the order data, 1.2 the center height for the left and right eyes is entered in the computer in accordance with the order data, 1.3 the optical values of the left and right eyes are entered in the computer in accordance with the order data and, if provided, the position of a reading section or of an intermediate corridor is entered in the computer, 1.4 the raw lens diameter and the position of the optical center point and/or the raw lens dimensions are entered in the computer if the raw lenses ( 1.5 the shape data of the frame edges of the predetermined spectacle frame is entered in the computer, 1.6 the shape data of the left and right spectacle lens openings and of the left and right raw lenses ( 1.7 the computer checks by calculation whether the size of the raw lenses ( 1.8 if necessary, the raw lens ( 1.9 the computer checks by calculation whether the movement that has been carried out is within the predetermined tolerances, which are dependent on the prismatic effect as well as the optical center point taking into account the axis position of the main cuts of a cylindrical and/or prismatic component, and, if this is not the case, the pair of raw lenses ( 1.10 the computer checks by calculation whether the movement that has been carried out of one raw lens ( 1.11 the computer calculates the minimum required movement and checks by calculation whether the movement that has been carried out is within the predetermined tolerances, which are dependent on the prismatic effect as well as the optical center point, taking into account the axis position of the main cuts of a cylindrical and/or prismatic component and, if this is not the case, the pair of raw lenses ( 1.12 the spectacle lens-machining machine or machines (