Design and simulation of the lens hood for space target detection camera system

Jianguo Tian; Linbao Hou; Shaowei Zhang; Mingqian Shi; Qiaoyue Dong; Zhen Xu

doi:10.1117/12.2626195

27 March 2022 Design and simulation of the lens hood for space target detection camera system

Jianguo Tian, Linbao Hou, Shaowei Zhang, Mingqian Shi, Qiaoyue Dong, Zhen Xu

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 12169AR (2022) https://doi.org/10.1117/12.2626195
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

In order to improve the imaging quality of the space target detection camera while minimizing the size of the camera structure and facilitating its attitude control, a retractable lens hood is proposed. The basic structure and design method of the telescopic lens hood are introduced. The use of a retractable lens hood structure to replace the long lens hood in the previous design, optimizes the structure of the system, and greatly reduces the size of the system. Analyze the feasibility of the camera's retractable lens hood and the suppression effect of stray light. Use LightTools software to build a model to analyze the ray tracing of the camera's hood. The results show that the point source transmittance (PST) of the retractable hood is gradually reduced under different off-axis angles. When the off-axis angle is greater than 30°, the PST of the optical system reaches the order of 10^-6 , which effectively suppresses the stray light of the system.

Citation Download Citation

Jianguo Tian, Linbao Hou, Shaowei Zhang, Mingqian Shi, Qiaoyue Dong, and Zhen Xu "Design and simulation of the lens hood for space target detection camera system", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 12169AR (27 March 2022); https://doi.org/10.1117/12.2626195

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