Interferometer for testing of general aspherics using computer-generated holograms

Steven M. Arnold; Anil K. Jain

doi:10.1117/12.47746

1 March 1991 Interferometer for testing of general aspherics using computer-generated holograms

Steven M. Arnold, Anil K. Jain

Proceedings Volume 1396, Applications of Optical Engineering: Proceedings of OE/Midwest '90; (1991) https://doi.org/10.1117/12.47746
Event: Applications of Optical Engineering: Proceedings of OE/Midwest '90, 1990, Rosemont, IL, United States

Abstract

An interferometer for aspheric testing ([AT) is under development at APA Optics for testing of general aspherics using inexpensive electron-beam written computer generated holograms (CGHs) as null compensators. This 152-mm aperture Twyman-Green interferometer is compatible with standard transmission spheres fringe analysis software and phase measuring accessories. Aspheric departures of up to several hundred waves can be measured using only standard interferometer accessories. Deeper aspheres may be tested using simple auxiliary optics. The interferometer configuration methods of operation and performance specifications are presented. 1.

Citation Download Citation

Steven M. Arnold and Anil K. Jain "Interferometer for testing of general aspherics using computer-generated holograms", Proc. SPIE 1396, Applications of Optical Engineering: Proceedings of OE/Midwest '90, (1 March 1991); https://doi.org/10.1117/12.47746

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