
Proceedings Paper
Characteristic analysis of Golay 6 multiple-mirror telescopeFormat | Member Price | Non-Member Price |
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Paper Abstract
Sparse aperture telescopes represent a promising technology for increasing the effective diameter of an optical system
while reducing the weight and the size. Multiple-mirror telescope (MMT) and multiple-telescope telescope (MTT) are
two types of sparse aperture systems. The primary mirror of MMT consists of a number of segments that are all parts of a
single primary-mirror conic. The configuration of the sparse aperture is related to the performance of the MMT. Golay
configuration is nonredundant sparse aperture. Entrance pupil characteristics of Golay 6 MMT are studied to research the
relationships between the sub-mirrors on the primary mirror and the shapes of sub-apertures on the entrance pupil of
Golay 6. Overlay factor and efficiency factor are proposed to achieve the optimal fill factor on the entrance pupil. Given
the relative aperture of Golay 6 MMT, there is some concern that the fill factor on the entrance pupil is larger than the
overlay fill factor on the spherical sparse aperture primary mirror. The maximum fill factor and the maximal overlay
factor are discussed, and the tangency condition when sub-mirrors of Golay 6 MMT are tangency is derived. Two
Cassegrain telescopes having a spherical primary mirror with Golay6 configuration and with an aspherical secondary
mirror are designed. The fill factor on the entrance pupil can be larger than the overlay factor on the primary mirror at the
certain occasion. Based on the relationships between the fill factor and the overlay factor, the rational parameters of
sub-mirrors on the primary mirror can be selected.
Paper Details
Date Published: 26 January 2009
PDF: 7 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71560H (26 January 2009); doi: 10.1117/12.806528
Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments
Yunlong Sheng; Yongtian Wang; Lijiang Zeng, Editor(s)
PDF: 7 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71560H (26 January 2009); doi: 10.1117/12.806528
Show Author Affiliations
Quanying Wu, Suzhou Univ. of Science and Technology (China)
Soochow Univ. (China)
Feng Wu, Changzhou Institute of Technology (China)
Soochow Univ. (China)
Soochow Univ. (China)
Feng Wu, Changzhou Institute of Technology (China)
Soochow Univ. (China)
Lin Qian, Soochow Univ. (China)
Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments
Yunlong Sheng; Yongtian Wang; Lijiang Zeng, Editor(s)
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