热红外相机光机系统设计

李新; 郑小兵; 徐骏

doi:doi:10.3969/j.issn.1673-6141.2012.06.011

大气与环境光学学报, 2012, 7 (6): 469, 网络出版: 2012-11-29

热红外相机光机系统设计

Opto-Mechanical System Design of Thermal Infrared Camera

论文大纲

李新 ^*郑小兵徐骏

作者单位

中国科学院安徽光学精密机械研究所中国科学院通用光学定标与表征技术重点实验室, 安徽合肥 230031

热红外相机光机系统无热化 thermal infrared camera opto-mechanical system athermalization

摘要

以气象观测应用为目标,提出一种基于非制冷微测辐射计的热红外波段相机光学设计方案。该光学系统焦距60 mm,光谱范围8?14 μm,视场角7。综合三片分离式结构和双高斯光学结构设计了红外物镜,优化后物镜成像质量达到衍射极限。进行了物镜的无热化结构设计,分析结果表明在－20℃～60℃范围内,物镜成像弥散斑直径接近爱里斑直径。

Abstract

Taking meteorologic observation as the application target, the optical system design of thermal infrared camera based on microbolometer detector array was presented. The optical system has a focal length of 60 mm, spectrum band is 8?14 μm, field angle is 7. The infrared objective lens was designed based on complicated Cooke configuration. Analysis shows that the lens imaging performances approach diffraction limitation. Objective was also designed with athermalization. The results show that in the temperature from －20℃ to 60℃ the lenses have a favorable performance with imaging spot diagram which is approximately equal to Airy disk diameter.

参考文献

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李新, 郑小兵, 徐骏. 热红外相机光机系统设计[J]. 大气与环境光学学报, 2012, 7(6): 469. LI Xin, ZHENG Xiao-bing, XU Jun. Opto-Mechanical System Design of Thermal Infrared Camera[J]. Journal of Atmospheric and Environmental Optics, 2012, 7(6): 469.

热红外相机光机系统设计

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