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Proceedings Paper

Fabrication and testing of the 3.5-m, f/1.75, WIYN primary mirror
Author(s): David S. Anderson; James H. Burge; Dean A. Ketelsen; Hubert M. Martin; Steve C. West; Gary A. Poczulp; John H. Richardson; Woon-Yin Wong
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Paper Abstract

The continuing development of rapid fabrication methods for large optics at the Steward Observatory Mirror Lab has resulted in the completion of the WIYN 3.5 m primary mirror in only five months. The use of these methods, though rapid, also resulted in one of the best surface figures we have produced (16 nm rms), excellent microroughness (8 angstroms rms), and very smooth small-scale figure error as determined by the structure function of the surface errors. In this paper, we review the important techniques in the grinding, polishing, and testing of the mirror used to achieve these results.

Paper Details

Date Published: 1 February 1994
PDF: 15 pages
Proc. SPIE 1994, Advanced Optical Manufacturing and Testing IV, (1 February 1994); doi: 10.1117/12.167968
Show Author Affiliations
David S. Anderson, Steward Observatory/Univ. of Arizona (United States)
James H. Burge, Steward Observatory/Univ. of Arizona (United States)
Dean A. Ketelsen, Steward Observatory/Univ. of Arizona (United States)
Hubert M. Martin, Steward Observatory/Univ. of Arizona (United States)
Steve C. West, Steward Observatory/Univ. of Arizona (United States)
Gary A. Poczulp, National Optical Astronomy Observatories (United States)
John H. Richardson, National Optical Astronomy Observatories (United States)
Woon-Yin Wong, National Optical Astronomy Observatories (United States)


Published in SPIE Proceedings Vol. 1994:
Advanced Optical Manufacturing and Testing IV
Victor J. Doherty, Editor(s)

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