21 November 2007 Development of Cf/Al lens barrel for space infrared telescope
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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 (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.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shao-wen Guo, Guang-yu Zhang, Wu-yi Wang, Xue-zeng Zhao, "Development of Cf/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); doi: 10.1117/12.782945; https://doi.org/10.1117/12.782945
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