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Proceedings Paper

An optical readout method based on reflective filter for infrared imaging system
Author(s): Wenjuan Wang; Mei Hui; Cheng Gong; Liquan Dong; Ming Liu; Xiaohua Liu; Yuejin Zhao
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Paper Abstract

The uncooled optical readout infrared imaging system altering the infrared image directly into a visible image is becoming a hotspot of research recent years. How to reduce the volume and improve the quality of infrared imaging is a key problem of the optical readout infrared thermal imaging system. In this paper, an reflective readout method of infrared imaging systems is presented, by which reduce the volume of the system for about 30%, improve the uniformity of the infrared image, the minimum detectable angle can be decreased by 1.3×10-5 deg than knife-edge filter method. The result of experiment is basically consistent with the theory analysis, experimental results indicate that the NETD of this system can be reach 173mK. Compared with traditional methods, the reflective optical readout method can effectively improve image quality.

Paper Details

Date Published: 5 December 2012
PDF: 7 pages
Proc. SPIE 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II, 85621O (5 December 2012); doi: 10.1117/12.999739
Show Author Affiliations
Wenjuan Wang, Beijing Institute of Technology (China)
Mei Hui, Beijing Institute of Technology (China)
Cheng Gong, Beijing Institute of Technology (China)
Liquan Dong, Beijing Institute of Technology (China)
Ming Liu, Beijing Institute of Technology (China)
Xiaohua Liu, Beijing Institute of Technology (China)
Yuejin Zhao, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 8562:
Infrared, Millimeter-Wave, and Terahertz Technologies II
Cunlin Zhang; Xi-Cheng Zhang; He Li; Sheng-Cai Shi, Editor(s)

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