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Characteristic investigation of Golay9 multiple mirror telescope with a spherical primary mirror

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Abstract

The sparse aperture provides a novel solution to the manufacturing difficulties of modern super large telescopes. Golay configurations are optimal in the sparse aperture family. Characteristics of the Golay9 multiple mirror telescope having a spherical primary mirror are investigated. The arrangement of the nine sub-mirrors is discussed after the planar Golay9 configuration is analyzed. The characteristics of the entrance pupil are derived by analyzing the sub-aperture shapes with different relative apertures and sub-mirror sizes. Formulas about the fill factor and the overlay factor are deduced. Their maximal values are presented based on the derived tangency condition. Formulas for the point spread function (PSF) and the modulation transfer function (MTF) of the Golay9 MMT are also deduced. Two Golay9 MMT have been developed by Zemax simulation. Their PSF, MTF, fill factors, and overlay factors prove that our theoretical results are consistent with the practical simulation ones.

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Acknowledgements

Thanks for grants of National Natural Science Foundation of China (Grant no. 61378056), Cooperative Innovation Fund Project of Jiangsu Province (Grant no. BY2016031-05), the First-stage Construction Project of Electrical Engineering & Automatization Brand Specialty of Jiangsu Province, Provincial Key Construction Discipline of Electric Engineering of Jiangsu Province, and Key Construction Laboratory of Special Motor Research and Application of Universities and Colleges of Jiangsu Province in China.

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Authors and Affiliations

  1. School of Electrical and Photo-Electronic Engineering, Changzhou Institute of Technology, 666 Liaohe Road, Changzhou, 213032, Jiangsu, China

    Feng Wu, Xifang Zhu & Ruxi Xiang

  2. School of Mathematics and Physics, Suzhou University of Science and Technology, 1 Kerui Road, Suzhou, 215009, Jiangsu, China

    Quanying Wu

  3. School of Physical Science and Technology, Soochow University, 1 Shizi Road, Suzhou, 215006, Jiangsu, China

    Lin Qian

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  1. Feng Wu
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  2. Quanying Wu
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Correspondence to Feng Wu.

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Wu, F., Wu, Q., Zhu, X. et al. Characteristic investigation of Golay9 multiple mirror telescope with a spherical primary mirror. Opt Rev 24, 617–625 (2017). https://doi.org/10.1007/s10043-017-0355-6

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  • DOI: https://doi.org/10.1007/s10043-017-0355-6

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