Patent ID: 7652235
Filing Date: 2010-01-26
Classification: A61B,G01M

Abstract:
1. A method of measuring an optical surface of an object, the method comprising: forming a pattern on a detector by focusing a light energy propagating from the object onto the detector, wherein the pattern comprises a two dimensional spatial light intensity distribution pattern; mapping the pattern to a transform array by transforming the pattern with a transform function, wherein the array comprises a two dimensional array having values corresponding to a first coordinate reference along a first dimension in a transform space and a second coordinate reference along a second dimension in the transform space; identifying a characteristic from the transform array, the characteristic corresponding to the optical surface of the object, and wherein the characteristic corresponds to a first coordinate location along the first dimension and a second coordinate location along the second dimension; and identifying a second characteristic from the array, the second characteristic corresponding to a third coordinate reference along the first dimension and a fourth coordinate reference along the second dimension.