Detecting radius of curvature (ROC) mismatch among primary mirror (PM) segments

doi:10.1364/OE.483757

CIOMP OpenIR

	Detecting radius of curvature (ROC) mismatch among primary mirror (PM) segments
	Z. Lu, G. Ju, X. Bai, C. Zhang, F. Jiang, B. Xu, J. Dong and S. Xu
	2023
发表期刊	Optics Express
ISSN	10944087
卷号	31 期号:9 页码:13981-13997
摘要	A segmented primary mirror (PM) is an efficient solution to the problems of a monolithic PM manufacture, testing, transportation, and launch. However, the problem of the radius of curvature (ROC) matching among PM segments will arise, which if not solved will seriously degrade the final imaging quality of the system. Accurately detecting ROC mismatch among PM segments from the wavefront map is of crucial importance for efficiently correcting this kind of manufacturing error, while currently there are few related studies. Based on the inherent relation between the PM segment’s ROC error and corresponding sub-aperture defocus aberration, this paper proposes that the ROC mismatch can be accurately estimated from the sub-aperture defocus aberration. Secondary mirror (SM) lateral misalignments will influence the accuracy of estimating ROC mismatch. A strategy is also proposed to reduce the influence of SM lateral misalignments. Detailed simulations are performed to demonstrate the effectiveness of the proposed method for detecting ROC mismatch among PM segments. This paper paves a road for detecting ROC mismatch using image-based wavefront sensing methods. © 2023 Optica Publishing Group.
DOI	10.1364/OE.483757
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67749
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. Lu, G. Ju, X. Bai, C. Zhang, F. Jiang, B. Xu, J. Dong and S. Xu. Detecting radius of curvature (ROC) mismatch among primary mirror (PM) segments[J]. Optics Express,2023,31(9):13981-13997.
APA	Z. Lu, G. Ju, X. Bai, C. Zhang, F. Jiang, B. Xu, J. Dong and S. Xu.(2023).Detecting radius of curvature (ROC) mismatch among primary mirror (PM) segments.Optics Express,31(9),13981-13997.
MLA	Z. Lu, G. Ju, X. Bai, C. Zhang, F. Jiang, B. Xu, J. Dong and S. Xu."Detecting radius of curvature (ROC) mismatch among primary mirror (PM) segments".Optics Express 31.9(2023):13981-13997.

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