一种改进型的红外三反射镜探测成像系统  

Improved Three-mirror Infrared Detection Imaging System

作　　者：白瑜[1,2,3] 廖胜[1] 李华[1] 邢廷文[1] 蒋亚东[2] 冯成 王白凤 

机构地区：[1]中国科学院光电技术研究所,四川成都610209 [2]电子科技大学光电信息学院,四川成都610054 [3]中国科学院大学,北京100049 [4]中国南方玻璃集团成都南玻有限公司,四川成都610200 [5]西华师范大学物理与电子信息学院,四川南充637002

出　　处：《光电技术应用》2013年第6期31-34,共4页Electro-Optic Technology Application

基　　金：国家自然科学基金(10874181)

摘　　要：长焦距、多谱段、轻量化成像系统具有分辨率高、轻小型等优点,是目前成像系统设计的一个重要研究方向。针对制冷型红外同轴三反射结构中心遮拦大的不足,提出了一种改进型的同轴三反射镜成像系统,在系统三镜后加平面反射镜,将系统光线进行折转,利用三个反射镜的二次曲面系数校正轴外像差,给出了具体的设计思路及考虑问题,并给出了一个焦距f=400mm,F/#为4,全视场角为1.72°的设计实例。设计结果表明,系统成像质量接近衍射极限。The imaging system with long focal length, multi-spectrum and light weight has the advantages of high resolution and small volume, which is an important research direction in imaging system design. According to the large shelter in cooled infrared coaxial three-mirror, an imaging system with the improved coaxial three-mirror is introduced. A piece of mirror is added behind the third mirror, the light from the system is reflected by the mirror. Off-axis aberration is corrected by second surface coefficients of three pieces of reflective mirror. The detailed de sign ideas and relative problems are given. A design example with 400 mm focal length, 4 F/# and 1.72° full field of view is given. The result shows that the imaging quality of the system approaches to diffraction limit.

关 键 词：红外探测 成像系统 多谱段 

分 类 号：TN216[电子电信—物理电子学]