红外自适应系统中双波段望远镜与红外物镜设计  

Design of dual-waveband telescope and infrared objective in infrared adaptive system

作　　者：张宣智[1] 栾亚东[1] 李元[1] 孙婷[1] 杨华梅[1] 

机构地区：[1]西安应用光学研究所,陕西西安710065

出　　处：《应用光学》2017年第1期19-23,共5页Journal of Applied Optics

摘　　要：大孔径红外光学系统往往易受自重和环境温度影响造成像质恶化,引入自适应光学技术的红外自适应系统能够很好地解决该问题,为此设计了一个用于Hartmann-Shack波前检测的红外自适应光学系统。重点设计了10×可见光与中波红外双波段望远镜,物镜为卡赛格林反射物镜组,无需消色差,在可见光与中波红外2个波段实现了消色差目镜设计;还设计了红外成像中继光学系统,可实现100%冷光阑效率,并补偿望远镜在中波红外波段的残余像差,使最终设计的光学系统MTF接近衍射极限,达到了0.5以上,满足设计指标要求。Image quality of large aperture infrared optical system is easily suffered from ambient temperature and deadweight, which can be solved by infrared adaptive system. Infrared adap-tive optical system based on Hartmann-Shack wave-front sensor is designed in this paper. Large aperture telescope engaged in dual waveband such as middle-infrared wavelength and vis-ual wavelength is designed to have 10x collimation with optical configuration of reflective Cassegrain objective lens group and multispectral achromatic refractive eyepiece lens group. Relay infrared objective lens is designed to compensate aberration of infrared telescope. Reimaging optics is chosen in such a way to minimize objective lens while maintaining 100 % cold shield efficiency. Thus MTF of dual-waveband optical system for IR adaptive system can approach diffraction limit（more than 0. 5）. Image quality can meet technical requirements.

关 键 词：双波段 可见光 中波红外 自适应光学 

分 类 号：TN206[电子电信—物理电子学] TH703[机械工程—仪器科学与技术]