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Proceedings Paper

Temperature control of large honeycomb mirrors
Author(s): Walter A. Siegmund; Larry M. Stepp; James Lauroesch
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Paper Abstract

The Astrophysical Research Consortium, the Magellan Project, and the National Optical Astronomy Observatories are collaborating in an experiment to study temperature control of a honeycomb mirror in an observatory environment. A full-scale mockup of a 60-deg sector of a 3.5-m borosilicate honeycomb mirror was constructed of glass and installed in the Apache Point Observatory (APO) 3.5-m telescope mount. The response of this mockup (the wedge) to diurnal temperature variations was monitored by measuring the glass temperature at about 300 locations distributed throughout its volume. The temperature of the wedge can be controlled via air circulated through its interior.

Paper Details

Date Published: 1 July 1990
PDF: 10 pages
Proc. SPIE 1236, Advanced Technology Optical Telescopes IV, (1 July 1990); doi: 10.1117/12.19248
Show Author Affiliations
Walter A. Siegmund, Univ. of Washington (United States)
Larry M. Stepp, National Optical Astronomy Observatories (United States)
James Lauroesch, Univ. of Chicago (United States)

Published in SPIE Proceedings Vol. 1236:
Advanced Technology Optical Telescopes IV
Lawrence D. Barr, Editor(s)

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