Scanning distortion analysis of infrared thermal imaging systems

Xi Wang; Qingqing Peng; Lin Liu; Jiaqiang Yang; Xiaoyu Du; Yangyang Li

doi:10.1117/12.2326281

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5 November 2018 Scanning distortion analysis of infrared thermal imaging systems

Xi Wang, Qingqing Peng, Lin Liu, Jiaqiang Yang, Xiaoyu Du, Yangyang Li

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Proceedings Volume 10815, Optical Design and Testing VIII; 108150X (2018) https://doi.org/10.1117/12.2326281
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

The optical system of infrared scanning thermal imager using linear array detector has inherent geometric distortion along the linear array direction of the detector. The reason of scanning distortion is analysed, and the mathematical formula of scanning distortion in the linear array direction is derived by using vector method. The mathematical results show that the distortion D along the linear array direction in the optical system of infrared scanning thermal imager is related to the sway angle θ of the scanning mirror. In order to verify the calculation results, Code V software is used to analyse the optical system of infrared scanning thermal imager, and the distortion of different sway angles is obtained and compared with the theoretical calculation values.

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Xi Wang, Qingqing Peng, Lin Liu, Jiaqiang Yang, Xiaoyu Du, and Yangyang Li "Scanning distortion analysis of infrared thermal imaging systems", Proc. SPIE 10815, Optical Design and Testing VIII, 108150X (5 November 2018); https://doi.org/10.1117/12.2326281

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