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SOFIA Primary Mirror Fabrication & Testing

文献类型： 会议论文

第一作者： Roland Geyl

作者： Roland Geyl 1 ; Michel Tarreau; Patrick Plainchamp;

作者机构： 1.SAGEM SA -

关键词： SOFIA;lightweight mirror;large optics;aspherics

会议名称： Optical manufacturing and testing IV :

主办单位：

页码： 126-130

摘要： The Stratospheric Observatory for Infrared Astronomy (SOFIA)is a joint American -German project dedicated to perform IR astronomy on board a Boeing Aircraft, in near space condition. First flight of the observatory is planned for 2003. The REOSC Products Unit of SAGEM SA (France) has been contracted by Kayser Threde (Germany) for the design and fabrication of the 2.7 meter diameter, F/1.19 parabolic lightweight SOFIA primary mirror as well as the M3 dichroic & folding mirror assembly. This paper will report the design, fabrication and test of the lightweight primary mirror. The mirror structure has been obtained by machining it out from a solid Zerodur blank. It is the world's largest of this type today. Axial and lateral mirror support system has been conceptually designed and engineered by SAGEM -REOSC engineers in relation with Kayser. Threde team. The optical surface is a F/1.19 parabola polished to a high level of quality.

分类号： N5

  • 相关文献

[1]Design and Progress in the Fabrication of an EUV Micro Exposure Tool Optics for PREUVE. Roland Geyl,Jean Francois Tanne. 2001

[2]Large Aspheric Optics for High Power-High Energy Laser. Roland Geyl,Francois Houbre. 2001

[3]From VLT to GTC and the ELTs. Roland Geyl. 2005

[4]Gran Telescopio Canarias optics manufacture : Final Report. Roland GEYL,Michel TARREAU,Michel TARREAU. 2006

[5]Progress toward a third Gemini M2 mirror. Roland Geyl,Eric Ruch,Serge Primet,Giles Chaussat. 2005

[6]Low CTE glass, SiC & Beryllium for lightweight mirror substrates. Roland Geyl,Marc Cayrel. 2005

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