Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007spie.6721e...7s&link_type=abstract
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes. Edited by
Astronomy and Astrophysics
Astronomy
Scientific paper
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.
Chen Zhiyuan
Song Liqiang
Yang Shimo
Zhang Xinyu
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