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Stephan Reichelt, Hans Tiziani

Testing Aspheric Optics by Use of Computer-generated Holograms

Keywords: aspheric optics testing, computer-generated holograms, interferometry

Interferometry has been the standard means of testing optical elements. For aspheric optical surfaces however, the optical testing requires usually a special null lens. Recently, the null testing with computer-generated holograms (CGHs) has become an established technique. CGHs allow a nearly arbitrary wavefront shaping via diffraction using only a single diffractive element. This paper gives details on a number of aspects of computer-generated holograms that have to be considered for successful testing aspheric optics along their entire cycle, from design over application to calibration.

tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Print ISSN: 0171-8096
Volume: 73, 10/2006
Pages: 554 - 565

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