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Proceedings Paper

Current progress in the research of LAMOST primary mirror support
Author(s): Xuefei Gong; Xiangqun Cui; Xizhang Ye
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Paper Abstract

The thirty-seven one meter class mirror segments which comprise the LAMOST primary mirror need precision support and cell to meet the demand of optics surface figure. Because true ZERODUR glass mirror has had the final design drawing that has been slight different from the former one, a modified sub-mirror finite element model and re-analysis have considered many new factors including the anti-drop groove, center blind hole and invar pad. At the same time, After a sub-cell prototype have been designed and manufactured, with a similar K9 glass mirror segment, the experiment of mirror figure testing is being conduct to verify sub-cell's performance and modify some detail. The support truss of primary mirror also has new scheme. This paper introduces the sub-cell prototype experiment, analysis of sub-mirror and new support truss.

Paper Details

Date Published: 29 September 2004
PDF: 8 pages
Proc. SPIE 5495, Astronomical Structures and Mechanisms Technology, (29 September 2004); doi: 10.1117/12.551074
Show Author Affiliations
Xuefei Gong, National Astronomical Observatories/Nanjing Institute of Astronomical Optics and Technology (China)
Xiangqun Cui, National Astronomical Observatories/Nanjing Institute of Astronomical Optics and Technology (China)
Xizhang Ye, National Astronomical Observatories/Nanjing Institute of Astronomical Optics and Technology (China)


Published in SPIE Proceedings Vol. 5495:
Astronomical Structures and Mechanisms Technology
Joseph Antebi; Dietrich Lemke, Editor(s)

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