| 摘要 |
PROBLEM TO BE SOLVED: To provide an eccentricity measurement method capable of highly precisely measuring an aspheric eccentricity amount and an aspheric eccentricity direction of an aspheric lens even when an inclination of an aspheric axis is small in the aspheric surface. SOLUTION: A first area including an efficient diameter and a second area arranged in the outer circumferential part of the first area and provided with a larger aspheric amount than the first area are defined, and eccentricity of the aspheric lens is measured when the surface shape of the second area is measured. COPYRIGHT: (C)2005,JPO&NCIPI
|
