Patent ID: 6887134
Filing Date: 2005-05-03
Classification: B24B,G05B

Abstract:
1. An apparatus for processing a lens comprising: a means for determining a value of a bevel curve based on a value of a curve of a concave face of an EX lens; a means for determining a first reference position on a peripheral edge in a portion having a minimum thickness at a lower side in a vertical direction of the EX lens based on a thickness of the portion having a minimum thickness; a means for determining a second reference position on a peripheral edge in a portion having a maximum thickness at an upper side in a vertical direction of the EX lens based on a ratio of a thickness of the portion having a maximum thickness to the thickness of the portion having a minimum thickness and data of a shape of the EX lens to be obtained by the processing; a means for determining the locus of the bevel based on the value of the bevel curve, the first reference position and the second reference position; and a means for forming the bevel along the locus of the bevel determined by the means for determining the locus of the bevel.