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Primary mirror segmentation for large optical telescopes: an inverse map projection approach
Zheng, Yi1,2; Tang, Lifeng1,2,3; Liang, Bin1,2; Li, Ying1,2
2021-07-20
Source PublicationAPPLIED OPTICS
ISSN1559-128X
Volume60Issue:21Pages:6015-6022
AbstractLarge segmented-mirror telescopes are powerful tools used in modern astronomy. Segmentation of the primary mirror is important for support design, mirror fabrication, and construction cost reduction. A curvature study showed that a primary mirror with a solid angle of less than pi/6 can be well divided by projecting identical hexagonal tilings onto a curved surface. Three approaches, based on map projection, are presented. The conformal method, preserving the angle locally, provides optimal regularity. The equal-area algorithm generates a partition having zero area variation. The equidistant projection minimizes the circumscribed diameter of the segments. These approaches are unified by a newly proposed compromise approach, which provides the necessary adjustment range for individual preferences. The performances of the three approaches are numerically verified using the Thirty Meter Telescope model. This study verifies the effectiveness of the scaling rule and sheds light on the mechanism of primary mirror segmentation. (C) 2021 Optical Society of America
Funding OrganizationNationalNatural Science Foundation of China ; NationalNatural Science Foundation of China ; International Science and Technology Cooperation Programm ; International Science and Technology Cooperation Programm ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; NationalNatural Science Foundation of China ; NationalNatural Science Foundation of China ; International Science and Technology Cooperation Programm ; International Science and Technology Cooperation Programm ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; NationalNatural Science Foundation of China ; NationalNatural Science Foundation of China ; International Science and Technology Cooperation Programm ; International Science and Technology Cooperation Programm ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; NationalNatural Science Foundation of China ; NationalNatural Science Foundation of China ; International Science and Technology Cooperation Programm ; International Science and Technology Cooperation Programm ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province
DOI10.1364/AO.433398
Language英语
Funding ProjectNationalNatural Science Foundation of China[U1731134] ; International Science and Technology Cooperation Programm[11973008] ; Natural Science Foundation of Jiangsu Province[2015DFG02710] ; [BK20141516]
Funding OrganizationNationalNatural Science Foundation of China ; NationalNatural Science Foundation of China ; International Science and Technology Cooperation Programm ; International Science and Technology Cooperation Programm ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; NationalNatural Science Foundation of China ; NationalNatural Science Foundation of China ; International Science and Technology Cooperation Programm ; International Science and Technology Cooperation Programm ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; NationalNatural Science Foundation of China ; NationalNatural Science Foundation of China ; International Science and Technology Cooperation Programm ; International Science and Technology Cooperation Programm ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; NationalNatural Science Foundation of China ; NationalNatural Science Foundation of China ; International Science and Technology Cooperation Programm ; International Science and Technology Cooperation Programm ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province
WOS Research AreaOptics
WOS SubjectOptics
WOS IDWOS:000675369800004
PublisherOPTICAL SOC AMER
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/76569
Collection中国科学院国家天文台
Corresponding AuthorZheng, Yi
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Nanjing Inst Astron Opt & Technol, Nanjing 210042, Peoples R China
2.Nanjing Inst Astron Opt & Technol, CAS Key Lab Astron Opt & Technol, Nanjing 210042, Peoples R China
3.Univets Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Yi,Tang, Lifeng,Liang, Bin,et al. Primary mirror segmentation for large optical telescopes: an inverse map projection approach[J]. APPLIED OPTICS,2021,60(21):6015-6022.
APA Zheng, Yi,Tang, Lifeng,Liang, Bin,&Li, Ying.(2021).Primary mirror segmentation for large optical telescopes: an inverse map projection approach.APPLIED OPTICS,60(21),6015-6022.
MLA Zheng, Yi,et al."Primary mirror segmentation for large optical telescopes: an inverse map projection approach".APPLIED OPTICS 60.21(2021):6015-6022.
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