Design considerations for computer generated holograms as supplement to Fizeau interferometers

R. Schreiner; T. Herrmann; J. Röder; S. Müller-Pfieffer; O. Falkenstörfer

doi:10.1117/12.625056

19 October 2005 Design considerations for computer generated holograms as supplement to Fizeau interferometers

R. Schreiner, T. Herrmann, J. Röder, S. Müller-Pfieffer, O. Falkenstörfer

Proceedings Volume 5965, Optical Fabrication, Testing, and Metrology II; 59650K (2005) https://doi.org/10.1117/12.625056
Event: Optical Systems Design 2005, 2005, Jena, Germany

Abstract

Computer generated holograms (CGH) are widely used in combination with standard Fizeau interferometers. The test of plane and spherical specimen is extended to the test of aspherical surfaces. The wave from a transmission flat or a transmission sphere is formed by the CGH to fit the surface of an asphere or a cylinder. There are some considerations for an advantageous design of this additional optical element in the beam path. The availability of a suitably designed CGH is often the limitation for the manufacturing of precision aspheres. JENOPTIK Laser, Optik, Systeme GmbH can provide a custom made CGH within a short time. We will show the design principles and the layout of the CGHs. The optical properties and the known limitations will be presented based on measurements of aspherical surfaces.

Citation Download Citation

R. Schreiner, T. Herrmann, J. Röder, S. Müller-Pfieffer, and O. Falkenstörfer "Design considerations for computer generated holograms as supplement to Fizeau interferometers", Proc. SPIE 5965, Optical Fabrication, Testing, and Metrology II, 59650K (19 October 2005); https://doi.org/10.1117/12.625056

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