透射式双波段红外搜索跟踪系统光学物镜  

Dual Spectral Band Refractive Objective Lens for Infrared Search and Track System

作　　者：焦明印[1] 陈秀萍[1] 李军琪[1] 张林[1] 郑常青[1] 

机构地区：[1]西安应用光学研究所,陕西西安710065

出　　处：《红外技术》2016年第4期296-299,304,共5页Infrared Technology

摘　　要：给出了一种适用于红外搜索跟踪系统的透射式双波段（中波/长波）光学物镜,两个波段的相对口径均为1/1.3,工作波段分别为3.7~4.8μm和7.5~10.5μm,视场为±1.75°。为提高光学透过率,物镜采用会聚光路分光,每个波段仅有4片透镜,其中各有2片采用了衍射光学表面,实测两个波段的光学透过率（含分光镜）均大于70%。A dual spectral band（MWIR/LWIR）refractive objective lens used for Infrared Search and Track（IRST） system is given in this paper. The spectral bands are 3.7~4.8 μm and 7.5 ~ 10.5 μm respectively and the relative aperture is 1/1.3 for both spectral bands, and the field of view for the lens is ±1.75°. In order to improve the optical transparency, a splitter in convergent beam is used, and there are only 4 lenses with 2 refractive/diffractive surfaces in each spectral band. The optical transparency is tested over 70%（include beam splitter） in each band.

关 键 词：红外物镜 衍射光学元件 红外搜索跟踪系统 

分 类 号：TN215[电子电信—物理电子学]