应用光学, 2019, 40 (6): 987, 网络出版: 2020-02-11   

一种折反式红外/激光复合导引头光学系统设计

Design of catadioptric infrared/laser compound seeker optical system
作者单位
西安应用光学研究所, 陕西 西安 710065
摘要
设计了一种用于长波非制冷红外和半主动激光复合导引的共口径折反式光学系统。为了减小反射式系统的零件加工和装调难度, 将卡塞格林系统次反射镜简化为平面反射镜, 主反射镜采用金属抛物面, 优化目镜组透镜尺寸, 避免光路内部遮挡, 利用反射式系统一次像面, 配合红外材料选取实现红外通道的光学被动消热差设计; 在平行光路中设置平板分光和激光窄带滤光片, 提高系统分光效率和透过率。设计结果表明: 红外通道特征频率35.7 lp/mm处MTF>0.2, 激光线性区为2°, 满足系统指标要求。
Abstract
A common-aperture catadioptric optical system for uncooled long-wave infared (LWIR) and semi-active laser compound guidance was designed. In order to reduce the difficulty of parts manufacturing and assembly of the reflective system, the secondary mirror of Cassegrain system was simplified to a plane mirror, and the primary mirror adopted metal paraboloid.The lens size of eyepiece group was optimized to avoid internal occlusion of optical path, and the optical passive athermalization design of infrared channel was realized by using the reflection system primary image plane and infrared materials. What’s more,the system spectral splitting efficiency and transmittance were improved by setting the beam splitting plate and laser narrow-band filter in the parallel optical path. Final design results show that at the characteristic frequency of infrared channel, the modulation transfer function (MTF) >0.2, the laser linear region is 2°, which meets the system index requirements.

周晓斌, 孙浩, 原琦, 刘召庆, 张衡, 文江华, 吴妍. 一种折反式红外/激光复合导引头光学系统设计[J]. 应用光学, 2019, 40(6): 987. ZHOU Xiaobin, SUN Hao, YUAN Qi, LIU Zhaoqing, ZHANG Heng, WEN Jianghua, WU Yan. Design of catadioptric infrared/laser compound seeker optical system[J]. Journal of Applied Optics, 2019, 40(6): 987.

本文已被 4 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!