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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationInfrared, Millimeter-Wave, and Terahertz Technologies II
DOIs
Publication statusPublished - 2012
EventInfrared, Millimeter-Wave, and Terahertz Technologies II - Beijing, China
Duration: 5 Nov 20127 Nov 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8562
ISSN (Print)0277-786X

Conference

ConferenceInfrared, Millimeter-Wave, and Terahertz Technologies II
Country/TerritoryChina
CityBeijing
Period5/11/127/11/12

Keywords

  • image quality
  • infrared imaging system
  • optical readout
  • reflective filter

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