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Proceedings Paper

Engineering with lightweight mirrors
Author(s): Robert E. Parks; Richard W. Wortley; James E. Cannon
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Paper Abstract

The purpose of this paper is to help determine whether or not a lightweight mirror is an appropriate engineering solution in place of a more traditional, solid mirror. The relatively recent manufacture of borosilicate lightweight mirrors both by casting1 and by the Gas Fusion process' make this study timely. Because lightweight borosilicate mirror substrates tend to. be substantially less expensive than the equivalent lightweight substrates made of very low expansion materials, a review of the properties of lightweight mirror structures in general will make it possible to determine if the cost savings of the borosilicate substrates are justified when balanced against the performance of the very low expansion mirror substrate materials.

Paper Details

Date Published: 1 July 1990
PDF: 9 pages
Proc. SPIE 1236, Advanced Technology Optical Telescopes IV, (1 July 1990); doi: 10.1117/12.19243
Show Author Affiliations
Robert E. Parks, Hextek Corp. (United States)
Richard W. Wortley, Hextek Corp. (United States)
James E. Cannon, Hextek Corp. (United States)

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

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