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Proceedings Paper

Design and realization of an innovative mount for calcium fluoride space optics
Author(s): Geoffrey K. Torrington; Dennis E. Clingan; Ronald M. Baker; Michael M. Montoya; Benjamin T. Macke
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Paper Abstract

Calcium fluoride is a desirable material for optical design of space systems in the ultraviolet, visible, and infrared bands. Modern calcium fluoride materials fabricated for the photolithography industry are highly resistant to space radiation. The wide wavelength band and low dispersion are also desirable properties. Unfortunately, calcium fluoride has a host of significant material property issues which hinder its use in the space environment. Low hardness, susceptibility to thermal and mechanical shock, and large coefficient of thermal expansion present significant challenges during development of opto-mechanical designs. Sandia National Laboratories Monitoring Systems and Technology Center has fielded a calcium fluoride based optical system for use in space. The Sandia design solution is based upon a spring-loaded mount which uses no volatile organic compounds. The theory of the Sandia solution is developed and design rules are presented. The Sandia design solution is illustrated for a specific example. Example design and margin calculations are shown. Finally, lessons learned from our design realization and qualification testing efforts are shared for the benefit of the community.

Paper Details

Date Published: 14 October 2004
PDF: 11 pages
Proc. SPIE 5523, Current Developments in Lens Design and Optical Engineering V, (14 October 2004); doi: 10.1117/12.560282
Show Author Affiliations
Geoffrey K. Torrington, Sandia National Labs. (United States)
Dennis E. Clingan, Sandia National Labs. (United States)
Ronald M. Baker, Sandia National Labs. (United States)
Michael M. Montoya, Sandia National Labs. (United States)
Benjamin T. Macke, Cummins Inc. (United States)

Published in SPIE Proceedings Vol. 5523:
Current Developments in Lens Design and Optical Engineering V
Pantazis Z. Mouroulis; Warren J. Smith; R. Barry Johnson, Editor(s)

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