Scanning measurement of aspheres


The measurement of aspheres today is often done using computer generated holograms with interferometry. We show that this method holds some significant systematic errors caused by imperfect adjustment of the optical components. This gives rise to the question if a measurement is possible without utilization of computer generated holograms. Therefore we propose a new elliptical setup using a laser interferometer and a set of scanning mirrors. Our work shows that this setup is capable of form measurement for individual aspheres but still poses some adjustment challenges

Similar works

Full text



Full text is not available
oai:fraunhofer.de:N-404288Last time updated on 11/15/2016

This paper was published in Fraunhofer-ePrints.

Having an issue?

Is data on this page outdated, violates copyrights or anything else? Report the problem now and we will take corresponding actions after reviewing your request.