Research on assembly and rectification method of complex offset axis infrared diffraction camera

MingQiang Cao; Junpeng Liu; Honglao Xu; Shifa Kang; Xing Fu; Xing Qin; Zhong Shen

doi:10.1117/12.2656677

9 January 2023 Research on assembly and rectification method of complex offset axis infrared diffraction camera

MingQiang Cao, Junpeng Liu, Honglao Xu, Shifa Kang, Xing Fu, Xing Qin, Zhong Shen

Proceedings Volume 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022); 125072Q (2023) https://doi.org/10.1117/12.2656677
Event: 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 2022, Changchun, China

Abstract

In this paper, the assembly and rectification method of the new optical system is studied. According to the characteristics and difficulties of the diffraction camera, the assembly and rectification scheme is formulated. Firstly, the space angle of the mirror is determined by the spatial attitude measurement and the reference conversion matrix method. The coaxial adjustment and combined detection and adjustment of each transmission lens group are completed by the self alignment method. The method of sensitivity matrix iterative fine adjustment based on aberration is applied in the whole machine assembly and adjustment process. Finally, the high-precision assembly and detection of the complex offset axis infrared diffraction camera were completed, and the wave aberration on the axis reached 0.119λ@3.39μm. The MTF reached 0.13@33lp/mm, meeting the design requirements. This method provides engineering experience and reference for similar camera assembly and adjustment process methods.

Citation Download Citation

MingQiang Cao, Junpeng Liu, Honglao Xu, Shifa Kang, Xing Fu, Xing Qin, and Zhong Shen "Research on assembly and rectification method of complex offset axis infrared diffraction camera", Proc. SPIE 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 125072Q (9 January 2023); https://doi.org/10.1117/12.2656677

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KEYWORDS

Mirrors

Prisms

Cameras

Infrared cameras

Diffraction

Infrared radiation

Chromatic aberrations

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