An optical readout method based on reflective filter for infrared imaging system

Wenjuan Wang; Mei Hui; Cheng Gong; Liquan Dong; Ming Liu; Xiaohua Liu; Yuejin Zhao

doi:10.1117/12.999739

5 December 2012 An optical readout method based on reflective filter for infrared imaging system

Wenjuan Wang, Mei Hui, Cheng Gong, Liquan Dong, Ming Liu, Xiaohua Liu, Yuejin Zhao

Proceedings Volume 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II; 85621O (2012) https://doi.org/10.1117/12.999739
Event: Photonics Asia, 2012, Beijing, China

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.

Citation Download Citation

Wenjuan Wang, Mei Hui, Cheng Gong, Liquan Dong, Ming Liu, Xiaohua Liu, and Yuejin Zhao "An optical readout method based on reflective filter for infrared imaging system", Proc. SPIE 8562, Infrared, Millimeter-Wave, and Terahertz Technologies II, 85621O (5 December 2012); https://doi.org/10.1117/12.999739

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