METHOD FOR MANUFACTURING ASPHERIC LENS, ECCENTRICITY MEASURING METHOD OF ASPHERIC LENS, ECCENTRICITY MEASURING DEVICE, AND ASPHERIC LENS MANUFACTURED BY THIS METHOD

摘要

PROBLEM TO BE SOLVED: To provide an eccentricity measuring method or the like of an aspheric lens with high versatility without needing preparation of an exclusive optical system at each aspheric face being a measuring object.;SOLUTION: The eccentricity measuring method or the like of the aspheric lens includes: a tilt error detection process for detecting tilt errors of plan parts 13 and 23 of the aspheric lens 10 to a prescribed reference by irradiating the plan parts 13 and 23 provided on the aspheric lens 10 with coherent light emitted as plane waves 101 and 201, and using light reflected by the plan parts 13 and 23; a shift error detection process for detecting the shift errors of spheric parts 12 and 22 of the aspheric lens 10 to a prescribed reference by irradiating the spheric parts 12 and 22 provided on the aspheric lens 10 with coherent light emitted as spherical waves 107 and 207, and using light reflected by the spheric parts 12 and 22; and an eccentricity calculation process for calculating aspheric eccentricity of the aspheric lens 10 by using the tilt error and the shift error.;COPYRIGHT: (C)2007,JPO&INPIT