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Proceedings Paper

Null test optics for the MMT and Magellan 6.5-m f/1.25 primary mirrors
Author(s): James H. Burge; David S. Anderson; Dean A. Ketelsen; Steve C. West
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Paper Abstract

The instruments used to interferometrically measure the optical surfaces of the 6.5-m f/1.25 primary mirrors for the MMT conversion and Magellan Telescopes must compensate over 800 micrometers surface departure from the best fitting sphere. The errors in the optical test must not contribute more than 0.04 arc seconds FWHM to the final image and the conic constant must be held to 0.01%. This paper presents the design, analysis, fabrication, and certification of the instruments used to measure these giant mirrors to such high accuracy.

Paper Details

Date Published: 1 June 1994
PDF: 12 pages
Proc. SPIE 2199, Advanced Technology Optical Telescopes V, (1 June 1994); doi: 10.1117/12.176235
Show Author Affiliations
James H. Burge, Univ. of Arizona Steward Observatory (United States)
David S. Anderson, Univ. of Arizona Steward Observatory (United States)
Dean A. Ketelsen, Univ. of Arizona Steward Observatory (United States)
Steve C. West, Univ. of Arizona Steward Observatory (United States)


Published in SPIE Proceedings Vol. 2199:
Advanced Technology Optical Telescopes V
Larry M. Stepp, Editor(s)

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