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Proceedings Paper

An application of PECHAN prism in infrared search and track system
Author(s): Hua Qiang; Yuan Li; Shan Gao; Yulan He; Nanxi Wang; Ling Wang; Li Liu; Hong Yang
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Paper 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.

Paper Details

Date Published: 15 October 2015
PDF: 4 pages
Proc. SPIE 9676, AOPC 2015: Optical Design and Manufacturing Technologies, 96760V (15 October 2015); doi: 10.1117/12.2199789
Show Author Affiliations
Hua Qiang, Xi'an Institute of Applied Optics (China)
Yuan Li, Xi'an Institute of Applied Optics (China)
Shan Gao, Xi'an Institute of Applied Optics (China)
Yulan He, Xi'an Institute of Applied Optics (China)
Nanxi Wang, Xi'an Institute of Applied Optics (China)
Ling Wang, Xi'an Institute of Applied Optics (China)
Li Liu, Institute of AVIC Xi'an Flight Automatic Control (China)
Hong Yang, Xi'an Institute of Applied Optics (China)


Published in SPIE Proceedings Vol. 9676:
AOPC 2015: Optical Design and Manufacturing Technologies
Lin Li; Kevin P. Thompson; Ligong Zheng, Editor(s)

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