ECCENTRICITY MEASURING DEVICE, LENS MOUNTING METHOD, AND ECCENTRICITY MEASURING METHOD FOR LENS

摘要

PROBLEM TO BE SOLVED: To provide an eccentricity measuring device which measures eccentricity of both sides of a lens to be inspected. SOLUTION: The device comprises: a first lighting optical system 11A which irradiates light to the surface of a lens to be inspected and forms an image at a paraxial focus of the lens; a first eccentricity measuring unit 1A having a first measuring means 16A which observes the reflected light from the surface of the lens and measures the eccentricity of the surface of the lens; a second lighting optical system 11B which irradiates light to the opposite side of the surface of a lens to be inspected and forms an image at a paraxial focus of the lens; and a second eccentricity measuring unit 1B having a second measuring means 16B which observes the reflected light from the opposite side of the surface of the lens and measures the eccentricity of the opposite side of the surface of the lens. COPYRIGHT: (C)2005,JPO&NCIPI