Development of Cf/Al lens barrel for space infrared telescope

Shao-wen Guo; Guang-yu Zhang; Wu-yi Wang; Xue-zeng Zhao

doi:10.1117/12.782945

21 November 2007 Development of C_f/Al lens barrel for space infrared telescope

Shao-wen Guo, Guang-yu Zhang, Wu-yi Wang, Xue-zeng Zhao

Proceedings Volume 6721, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 67210O (2007) https://doi.org/10.1117/12.782945
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

The superior mechanical and thermal properties of continuous graphite fiber reinforced aluminum matrix composite (C_f/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 C_f/Al lens barrel used in space infrared optical system including fabrication technology, structure design and simulation analysis. The advantages and disadvantages of C_f/Al lens barrel compared with invar and CFRP lens barrel, whose structure parameters are identical to that of C_f/Al lens barrel, are discussed. Some performance figures and data are given. The results indicate that the performance of C_f/Al lens barrel is significantly better than the invar, and close to CFRP. However lower outgassing than CFRP under the vacuum condition make C_f/Al become a better choice for space infrared applications.

Citation Download Citation

Shao-wen Guo, Guang-yu Zhang, Wu-yi Wang, and Xue-zeng Zhao "Development of C_f/Al lens barrel for space infrared telescope", Proc. SPIE 6721, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 67210O (21 November 2007); https://doi.org/10.1117/12.782945

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