Study on optimization design and application of beryllium-mirror of space astronomical instruments

Liqiang Song; Shimo Yang; Zhiyuan Chen; Xinyu Zhang

doi:10.1117/12.782693

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21 November 2007 Study on optimization design and application of beryllium-mirror of space astronomical instruments

Liqiang Song, Shimo Yang, Zhiyuan Chen, Xinyu Zhang

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Proceedings Volume 6721, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 672107 (2007) https://doi.org/10.1117/12.782693
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

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.

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Liqiang Song, Shimo Yang, Zhiyuan Chen, and Xinyu Zhang "Study on optimization design and application of beryllium-mirror of space astronomical instruments", Proc. SPIE 6721, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 672107 (21 November 2007); https://doi.org/10.1117/12.782693

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