公开(公告)号：WO2016023835A2

公开(公告)日：2016-02-18

申请号：PCT/EP2015068297

申请日：2015-08-07

Applicant: ESSILOR INTERNAT CIE GÉNÉRALE D OPTIQUE

Inventor： BULTEZ XAVIER ,  MOINE JÉROME ,  BOLTEAU GUILLAUME ,  CHAUVEAU JEAN-PIERRE

CPC classification number: B24B49/03 ,  B23Q17/2233 ,  B24B13/005 ,  B24B13/06 ,  B24B49/00 ,  G05B19/402 ,  G05B2219/36204

Abstract: The invention concerns a method for determining location of a lens machining tool (24) having an offset location according to a first direction (Y) smaller than a first predetermined threshold, comprising the steps of manufacturing a calibration piece (10) according to a predetermined theoretical geometry by using said lens machining tool for providing a at least partially annular groove in a main surface of said calibration piece, said at least partially annular groove being configured to form at least one sharp edge defining a slope discontinuity on said main surface; measuring a distance between said at least one sharp edge and a turning center of said calibration piece for providing data of geometrical characteristics of said calibration piece; and deducing from said measured data a location of said lens machining tool according to a second direction (X) distinct from the first direction.

Abstract translation: 本发明涉及一种用于根据小于第一预定阈值的第一方向（Y）确定具有偏移位置的透镜加工工具（24）的位置的方法，包括以下步骤：根据预定的步骤制造校准片（10） 通过使用所述透镜加工工具在所述校准件的主表面中提供至少部分环形的凹槽的理论几何形状，所述至少部分环形凹槽被配置为形成限定所述主表面上的斜率不连续性的至少一个锋利边缘; 测量所述至少一个锋利边缘与所述校准件的转动中心之间的距离，以提供所述校准件的几何特征的数据; 并根据与第一方向不同的第二方向（X）从所述测量数据推断所述透镜加工工具的位置。