Design and verification of a scanning system with large field of view and multichannel

Yang Huang; Shengjie Zhang; Cong Wang; Jinchuan Niu; Yinglong Zhao

doi:10.1117/12.3000921

29 December 2023 Design and verification of a scanning system with large field of view and multichannel

Yang Huang, Shengjie Zhang, Cong Wang, Jinchuan Niu, Yinglong Zhao

Proceedings Volume 12976, Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2023); 1297609 (2023) https://doi.org/10.1117/12.3000921
Event: 8th Asia Pacific Conference on Optics Manufacture & 3rd International Forum of Young Scientists on Advanced Optical Manufacturing, 2023, Shenzhen, China

Abstract

In order to realize the observation ability of a space camera with the field of view angle greater than 120 degrees and the imaging spectrum covering 350nm~ 12500nm, the design and verification of a scanning system with large field of view and multichannel were carried out. Firstly, according to the performance indicators of the camera, the structure form of the overall scanning and imaging system was determined. Two motors were used to drive the telescope system and the half-angle mirror to rotate in the same phase respectively, and by imaging with four refractive relay optical systems in different spectral bands, the camera could achieve a wide field of view imaging covering the ultraviolet to long wavelength infrared spectral range. Secondly, based on the scanning form, the optical parameters and the system structure were designed in detail. Finally, the system was alignment, and the performance of the system were measured in experiment. The wavefront aberration of each field of view in the telescope system was better than 0.047λ (λ= 632.8nm). The scan following accuracy of the half-angle mirror was better than 10″, with a deviation of 0.01mm from the scanning axis position of the telescope system. All field of view MTF_avg of the four channels were better than 0.42, meeting the indicator requirements. The results show that the design of this scanning system with large field of view and multichannel is reasonable and feasible, and has important reference value for the development of related systems.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yang Huang, Shengjie Zhang, Cong Wang, Jinchuan Niu, and Yinglong Zhao "Design and verification of a scanning system with large field of view and multichannel", Proc. SPIE 12976, Eighth Asia Pacific Conference on Optics Manufacture and Third International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2023), 1297609 (29 December 2023); https://doi.org/10.1117/12.3000921

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KEYWORDS

Imaging systems

Mirrors

Design

Telescopes

Relays

Optical scanning systems

Modulation transfer functions

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