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Proceedings Paper

Development of Cf/Al lens barrel for space infrared telescope
Author(s): Shao-wen Guo; Guang-yu Zhang; Wu-yi Wang; Xue-zeng Zhao
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Paper Abstract

The superior mechanical and thermal properties of continuous graphite fiber reinforced aluminum matrix composite (Cf/Al) make it attractive from a design standpoint for space-based system for which the lightweight, high stiffness structure is one of the key technologies. This paper describes the development process of a Cf/Al lens barrel used in space infrared optical system including fabrication technology, structure design and simulation analysis. The advantages and disadvantages of Cf/Al lens barrel compared with invar and CFRP lens barrel, whose structure parameters are identical to that of Cf/Al lens barrel, are discussed. Some performance figures and data are given. The results indicate that the performance of Cf/Al lens barrel is significantly better than the invar, and close to CFRP. However lower outgassing than CFRP under the vacuum condition make Cf/Al become a better choice for space infrared applications.

Paper Details

Date Published: 21 November 2007
PDF: 6 pages
Proc. SPIE 6721, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 67210O (21 November 2007); doi: 10.1117/12.782945
Show Author Affiliations
Shao-wen Guo, Harbin Institute of Technology (China)
Guang-yu Zhang, Harbin Institute of Technology (China)
Wu-yi Wang, Harbin Institute of Technology (China)
Xue-zeng Zhao, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 6721:
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Yudong Zhang; Wenhan Jiang; Myung K. Cho, Editor(s)

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