Development of Cf/Al lens barrel for space infrared telescope

Details Development of Cf/Al lens barrel for space infrared telescope Development of Cf/Al lens barrel for space infrared telescope

Nov 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007spie.6721e..24g&link_type=abstract

3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes. Edited by

Computer Science

Performance

Scientific paper

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.

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