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红外目标模拟器光学系统设计

Optical System Design for Infrared Target Simulator

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摘要

为简化红外目标模拟器结构,提出了一种新型共光路红外目标模拟器方案,基于此方案设计了一款结构紧凑型双通道红外投影系统,系统视场角为±3°,工作波段为3~5 μm,入瞳距为550 mm,焦距为220 mm,F 数为3.67.通过分析以往红外目标模拟器结构相对复杂的原因,以及干扰目标模拟器的结构形式对共光路设计的影响,提出了一种利用黑体/摆镜组合作为干扰目标源的双通道共光路解决方案,简化了系统结构.并从理论上分析了摆镜对系统性能的影响,证明了此方案的可行性.设计结果表明,主目标通道各视场在16 lp/mm 处调制传递函数值均优于0.5,两通道各视场弥散斑均方根半径均小于18 μm、畸变均小于1%.通过调焦,该系统能满足-10 ℃~40 ℃工作环境下的使用要求.

Abstract

A new common-path scheme for infrared target simulator is proposed in order to simplify the structure of infrared target simulator.Based on this scheme,a dual-channel infrared projection system with compacted structure is designed.The optical system is characterized by the system field angle of ±3°,the spectral band of 3~5 mm,the entrance pupil distance of 550 mm,the focal length of 220 mm and the F number of 3.67.After analyzing the reason why the structure of the previous infrared target simulator is complex and the influence of different forms of interference target simulator structure on the design of common-path system,a good solution is given with combination of blackbody source and scanning mirror as interference target source.Through theoretical study of the influence of scanning mirror on the system performance,the feasibility of this scheme is proved.The results show that the modulation transfer function of the main target channel is better than 0.5 at the field of 16lp/mm,the root mean square (RMS) radius of each channel is less than 18 mm,and the distortion is less than 1%.The system can meet the requirements of minus 10 ℃ to 40 ℃ working environment by focusing.

广告组1 - 空间光调制器+DMD
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中图分类号:TH741.5

DOI:10.3788/aos201535.0422007

所属栏目:光学设计与制造

责任编辑:韩峰  信息反馈

基金项目:国家863计划(2010AA122203)

收稿日期:2014-10-11

修改稿日期:2014-12-11

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作者单位    点击查看

宋延松:中国科学院西安光学精密机械研究所, 陕西 西安 710119中国科学院大学, 北京 100049
杨建峰:中国科学院西安光学精密机械研究所, 陕西 西安 710119
赵意意:中国科学院西安光学精密机械研究所, 陕西 西安 710119中国科学院大学, 北京 100049
闫兴涛:中国科学院西安光学精密机械研究所, 陕西 西安 710119
马小龙:中国科学院西安光学精密机械研究所, 陕西 西安 710119

联系人作者:宋延松(syansong@163.com)

备注:宋延松(1990—),男,博士研究生,主要从事成像光学设计方面的研究.

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引用该论文

Song Yansong,Yang Jianfeng,Zhao Yiyi,Yan Xingtao,Ma Xiaolong. Optical System Design for Infrared Target Simulator[J]. Acta Optica Sinica, 2015, 35(4): 0422007

宋延松,杨建峰,赵意意,闫兴涛,马小龙. 红外目标模拟器光学系统设计[J]. 光学学报, 2015, 35(4): 0422007

被引情况

【1】郑雅卫,李俊娜,高泽东,李建军,高教波,王 军,高 飞. 双通道红外准直投影光学系统设计. 应用光学, 2019, 40(1): 58-62

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