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Proceedings Paper

NOAO testing procedures for large optics
Author(s): Larry M. Stepp; Gary A. Poczulp; Earl T. Pearson; Nicolas A. Roddier
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Paper Abstract

This paper describes optical testing procedures used at the National Optical Astronomy Observatories (NOAO) for testing large optics. It begins with a discussion of the philosophy behind the testing approach and then describes a number of different testing methods used at NOAO, including the wire test, full-aperture and sub-aperture Hartmann testing, and scatterplate interferometry. Specific innovations that enhance the testing capabilities are mentioned. NOAO data reduction software is described. Examples are given of specific output formats that are useful to the optician, using illustrations taken from recent testing of a 3.5- meter, f/1.75 borosilicate honeycomb mirror. Finally, we discuss some of the optical testing challenges posed by the large optics for the Gemini 8-meter Telescopes Project

Paper Details

Date Published: 26 March 1992
PDF: 11 pages
Proc. SPIE 1618, Large Optics II, (26 March 1992); doi: 10.1117/12.58045
Show Author Affiliations
Larry M. Stepp, National Optical Astronomy Observatories (United States)
Gary A. Poczulp, National Optical Astronomy Observatories (United States)
Earl T. Pearson, National Optical Astronomy Observatories (United States)
Nicolas A. Roddier, National Optical Astronomy Observatories (United States)

Published in SPIE Proceedings Vol. 1618:
Large Optics II
Robert E. Parks, Editor(s)

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