Optimization Method for Low Tilt Sensitivity of Secondary Mirror Based on the Nodal Aberration Theory

doi:10.3390/app12136514

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	Optimization Method for Low Tilt Sensitivity of Secondary Mirror Based on the Nodal Aberration Theory
	J. Li; Y. L. Ding; Y. M. Cai; G. Q. Yuan and M. Q. Zhang
	2022
发表期刊	Applied Sciences-Basel
ISSN	12
卷号	13 页码:18
摘要	The optical system that combines imaging and image motion compensation is conducive to the miniaturization of aerial mapping cameras, but the movement of optical element for image motion compensation will cause a decrease in image quality. To solve this problem, reducing the sensitivity of moving optical element is one of the effective ways to ensure the imaging quality of aerial mapping cameras. Therefore, this paper proposes an optimization method for the low tilt sensitivity of the secondary mirror based on the Nodal aberration theory. In this method, the analytical expressions of the tilt sensitivity of the secondary mirror in different tilt directions are given in the form of zernike polynomial coefficients, and the influence of the field of view on the sensitivity is expressed in the mathematical model. The desensitization optimization function and desensitization optimization method are proposed. The catadioptric optical system with a focal length of 350 mm is used for desensitization optimization. The results show that the desensitization function proposed in this paper is linearly related to the decrease of sensitivity within a certain range, and the standard deviation of the system after desensitization is 0.020, which is 59% of the system without desensitization. Compared with the traditional method, the method in this paper widens the range of angle reduction sensitivity and has a better desensitization effect. The research results show that the optimization method for low tilt sensitivity of the secondary mirror based on the Nodal aberration theory proposed in this paper reduces the tilt sensitivity of the secondary mirror, revealing that the reduction of the sensitivity depends on the reduction of the aberration coefficient related to the misalignment in the field of view, which is critical for the development of an optical system for aerial mapping cameras that combines imaging and image motion compensation.
DOI	10.3390/app12136514
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收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66952
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	J. Li,Y. L. Ding,Y. M. Cai,et al. Optimization Method for Low Tilt Sensitivity of Secondary Mirror Based on the Nodal Aberration Theory[J]. Applied Sciences-Basel,2022,13:18.
APA	J. Li,Y. L. Ding,Y. M. Cai,&G. Q. Yuan and M. Q. Zhang.(2022).Optimization Method for Low Tilt Sensitivity of Secondary Mirror Based on the Nodal Aberration Theory.Applied Sciences-Basel,13,18.
MLA	J. Li,et al."Optimization Method for Low Tilt Sensitivity of Secondary Mirror Based on the Nodal Aberration Theory".Applied Sciences-Basel 13(2022):18.

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