Patent ID: 7701563
Filing Date: 2010-04-20
Classification: G01M

Abstract:
1. An apparatus for measuring decenter error of a lens, the lens comprising a circular body and a peripheral annular sidewall surrounding the body, the sidewall extending from a periphery of the body in a direction parallel to an optical axis of the lens, the apparatus comprising: a testing device for measuring a decenter error of the lens; a lens supporter having a first tubular cylindrical wall, and a plurality of spaced radial slots defined in a first end of the first tubular cylindrical wall, the first end of the first tubular cylindrical wall being configured for mounting of the lens thereon; and a plurality of spheres received in the slots, the spheres being configured for abutting on an inner surface of the peripheral annular sidewall of the lens; and an elastic member mounted on the first end of the first tubular cylindrical wall, the elastic member abutting against the spheres.