ASPHERIC SURFACE LENS MEASURING APPARATUS CAPABLE OF MOUNTING AND REPLACING A TEST LENS EASILY BY SIMPLIFYING THE COMPOSITION OF AN OPTICAL ELEMENT ARRANGED ON THE OUTSIDE OF A PIEZO-INTERFEROMETER

摘要

PURPOSE: An aspheric surface lens measuring apparatus is provided to simplify the composition of an optical system by using a reflecting mirror provided with a computer generated hologram. ;CONSTITUTION: An aspheric surface lens measuring apparatus comprises: an interferometer generating incident beam and measuring interference between returned reference beam and test beam; a first reflection plane(210) reflecting the reference beam from the incident beam and passing the test beam; a lens installation unit mounting a test lens to pass the test beam passed through the first reflection plane; a sub lens(220) converging or emitting the test beam passed through the test lens; and a second reflection plane(230) compensating a wave surface of the test beam passed through the sub lens and having a computer generated hologram on one side to reflect with diffraction.;COPYRIGHT KIPO 2011