An application of PECHAN prism in infrared search and track system

Hua Qiang; Yuan Li; Shan Gao; Yulan He; Nanxi Wang; Ling Wang; Li Liu; Hong Yang

doi:10.1117/12.2199789

15 October 2015 An application of PECHAN prism in infrared search and track system

Hua Qiang, Yuan Li, Shan Gao, Yulan He, Nanxi Wang, Ling Wang, Li Liu, Hong Yang

Proceedings Volume 9676, AOPC 2015: Optical Design and Manufacturing Technologies; 96760V (2015) https://doi.org/10.1117/12.2199789
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

To solve real-time image de-rotation problems in infrared search and track (IRST) system design, the paper by adding a set of PECHAN Prism in infrared search and track system achieves image de-rotation. In order to get the image de-rotation prism corresponding with the actual engineering needs, it analyzes the main influential factor of prism and designs a 3~5μm MWIR image de-rotation prism. In order to ensure the performance of the optical system, it uses a new PECHAN Prism parallelism error detection method, which measured that the incident parallelism error is 1′16″. The parallelism error after alignment meets the system requirement. In this paper, the PECHAN Prism image de-rotation method significantly reduces the system’s optical path length to 170.5mm. This method will play an important role in miniaturization, light weight and engineering of product.

Citation Download Citation

Hua Qiang, Yuan Li, Shan Gao, Yulan He, Nanxi Wang, Ling Wang, Li Liu, and Hong Yang "An application of PECHAN prism in infrared search and track system", Proc. SPIE 9676, AOPC 2015: Optical Design and Manufacturing Technologies, 96760V (15 October 2015); https://doi.org/10.1117/12.2199789

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