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Proceedings Paper

Testing and alignment of freeform-based multi-mirror telescopes
Author(s): Xue-jun Zhang; Hai-xiang Hu; Dong-lin Xue; Ming Li
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Paper Abstract

Three Mirror Anastigmat (TMA) systems including both on-axis and off-axis configurations have been widely used in space applications. In some designs, to correct for high order aberrations and realize large FOV, freeform surfaces are used to provide more design freedoms. This trend brings challenges to optical manufacturing and testing community. Since testing is critical to make high accurate aspheres and freeform surfaces, the paper addressed Computer Generated Hologram (CGH) design and implement to measure large freeform mirrors. In particular, CGH assisted alignment procedure for TMA telescopes were discussed in detail.

Paper Details

Date Published: 3 September 2015
PDF: 9 pages
Proc. SPIE 9578, Current Developments in Lens Design and Optical Engineering XVI, 95780B (3 September 2015); doi: 10.1117/12.2189967
Show Author Affiliations
Xue-jun Zhang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Hai-xiang Hu, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Univ. of Chinese Academy of Sciences (China)
Dong-lin Xue, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Ming Li, Changchun Institute of Optics, Fine Mechanics and Physics (China)


Published in SPIE Proceedings Vol. 9578:
Current Developments in Lens Design and Optical Engineering XVI
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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