Design of infrared optical system for mulit-target compounded simulator

ZHANG Shu-qing; WANG Jing-yang; WANG Zhi-le; CHU Yong-qiang; TAN Shuang-long

doi:10.3788/OPE.20142206.1454

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Design of infrared optical system for mulit-target compounded simulator

更新时间：2020-08-13

- Design of infrared optical system for mulit-target compounded simulator
- Optics and Precision Engineering Vol. 22, Issue 6, Pages: 1454-1460(2014)
- 作者机构：
  
  哈尔滨工业大学空间光学工程研究中心,黑龙江哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20142206.1454
  CLC： TN216
- Received：12 December 2013，
  
  Revised：17 January 2014，
  
  Published：25 June 2014
- 稿件说明：
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张树青, 王敬洋, 王治乐等. 红外多目标复合仿真光学系统设计[J]. 光学精密工程, 2014,22(6): 1454-1460

ZHANG Shu-qing, WANG Jing-yang, WANG Zhi-le etc. Design of infrared optical system for mulit-target compounded simulator[J]. Editorial Office of Optics and Precision Engineering, 2014,22(6): 1454-1460
张树青, 王敬洋, 王治乐等. 红外多目标复合仿真光学系统设计[J]. 光学精密工程, 2014,22(6): 1454-1460 DOI： 10.3788/OPE.20142206.1454.

ZHANG Shu-qing, WANG Jing-yang, WANG Zhi-le etc. Design of infrared optical system for mulit-target compounded simulator[J]. Editorial Office of Optics and Precision Engineering, 2014,22(6): 1454-1460 DOI： 10.3788/OPE.20142206.1454.

摘要

基于透射式复合投影以及微透镜阵列扩束设计了适用于1~3 μm和3~5 μm波段的红外多目标复合模拟器的光学系统。该模拟器的干扰光路采用透射式复合投影并利用微透镜阵列完成扩束。此外，采用前无焦系统和后聚焦镜组结合的方式，通过在平行光路中引入平面耦合镜，实现了目标和干扰光路共用一套投影系统。设计过程对目标光学系统、干扰光学系统和主投影光学系统分开优化，之后对系统进行整体优化。该系统入瞳距为200 mm，视场为±4°，全视场调制传递函数（MTF）在20 lp/mm时大于0.6，接近衍射极限。文中分析了加工装调完成后光学系统的实测MTF数据，结果表明，MTF在20 lp/mm时大于0.3，完全满足应用技术指标。该系统已成功应用于新型红外目标模拟器，对未来红外仿真光学系统的设计有参考意义。

Abstract

An optical system for a multi-target infrared compounded simulator applicable to 1-3 μm and 3-5 μm is designed based on the transmission compounded projection and micorlens array expanding. The disturbance optical path of the simulator adopts transmission compounded projection and uses a micorlens array as the beam expander. To allow the target/disturbance generator to share the same optical path

an afocal system and a back focal lens group are combined and a coupling plane mirror is inserted in the collimation light besides. Moreover

the target optical system

disturbance optical system and the main projection optical system are optimized respectively

then the whole system is optimized further. The designed system contains an entrance pupil distance of 200 mm

field of view of ±4°

and the Modulation Transfer Function(MTF) no less than 0.6 at 20 lp/mm

approaching the diffraction limit. Finally

the measured data of assembled optical system is analyzed and it shows its MTF to be greater than 0.3 at 20 lp/mm. The infrared optical system satisfies application requirements completely and has been applied to a novel infrared simulator for providing reference for design of the infrared simulation systems.

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references

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