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Proceedings Paper

Study on optimization design and application of beryllium-mirror of space astronomical instruments
Author(s): Liqiang Song; Shimo Yang; Zhiyuan Chen; Xinyu Zhang
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Paper Abstract

This paper describes the application tendency of beryllium mirror of space astronomical instruments and the tip-tilt mirror of the correlation tracker of a Space Solar Telescope (SST). The optimization choice of tip-tilt mirror substrate material, the light-weighted scheme of tip-tilt mirror substrate, the analysis and optimization design of mirror structure were accomplished. At last, the final RMS surface figure error of 2.18×10-6mm and PV of 1.69×10-5mm were obtained with resonant frequency of 1609Hz, and the mass of the beryllium mirror of 47.88g. These results satisfy the technology requirements of the tip-tilt mirror of the correlation tracker. The manufacture technology of beryllium mirror substrate, the nickel plating technique on beryllium mirror substrate and optical fabrication were discussed in detail.

Paper Details

Date Published: 21 November 2007
PDF: 7 pages
Proc. SPIE 6721, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 672107 (21 November 2007); doi: 10.1117/12.782693
Show Author Affiliations
Liqiang Song, National Astronomical Observatories (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Shimo Yang, National Astronomical Observatories (China)
Zhiyuan Chen, National Astronomical Observatories (China)
Xinyu Zhang, National Astronomical Observatories (China)
Graduate Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 6721:
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes

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