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Proceedings Paper

Interferometer for testing of general aspherics using computer-generated holograms
Author(s): Steven M. Arnold; Anil K. Jain
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Paper 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.

Paper Details

Date Published: 1 March 1991
PDF: 8 pages
Proc. SPIE 1396, Applications of Optical Engineering: Proceedings of OE/Midwest '90, (1 March 1991); doi: 10.1117/12.47746
Show Author Affiliations
Steven M. Arnold, APA Optics, Inc. (United States)
Anil K. Jain, APA Optics, Inc. (United States)


Published in SPIE Proceedings Vol. 1396:
Applications of Optical Engineering: Proceedings of OE/Midwest '90

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