无遮拦折反射红外光学系统

史广维; 张新; 张建萍

doi:10.3788/OPE.20142208.1995

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无遮拦折反射红外光学系统

现代应用光学 | 更新时间：2020-08-13

- 无遮拦折反射红外光学系统
- Unobscured catadioptric infrared optical systems
- 光学精密工程 2014年22卷第8期页码：1995-2000
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所中国科学院光学系统先进制造技术重点实验室,吉林长春,130033
- 作者简介：
- 基金信息：
  
  国家自然科学基金青年基金资助项目（No.61007009）()
- DOI：10.3788/OPE.20142208.1995
  中图分类号： V248.3;TN216
- 收稿日期：2013-06-28，
  
  修回日期：2013-08-30，
  
  纸质出版日期：2014-08-25
- 稿件说明：
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史广维, 张新, 张建萍. 无遮拦折反射红外光学系统[J]. 光学精密工程, 2014,22(8): 1995-2000

SHI Guang-wei, ZHANG Xin, ZHANG Jian-ping. Unobscured catadioptric infrared optical systems[J]. Editorial Office of Optics and Precision Engineering, 2014,22(8): 1995-2000
史广维, 张新, 张建萍. 无遮拦折反射红外光学系统[J]. 光学精密工程, 2014,22(8): 1995-2000 DOI： 10.3788/OPE.20142208.1995.

SHI Guang-wei, ZHANG Xin, ZHANG Jian-ping. Unobscured catadioptric infrared optical systems[J]. Editorial Office of Optics and Precision Engineering, 2014,22(8): 1995-2000 DOI： 10.3788/OPE.20142208.1995.

摘要

提出了一种新型无遮拦红外折反射光学系统的设计方法以解决原系统存在的中心遮拦问题。分析了传统离轴两反望远系统由于存在线性像散而无法实现无遮拦设计的原因，给出了消线性像散的条件。基于上述条件提出了通过对接共轴透镜组实现无遮拦折反射系统设计的基本思想。最终，通过联接不同的中继镜组完成了无遮拦中波、长波红外系统的设计。设计的应用于制冷型3~5 μm中波和8~12 μm长波红外的两套无遮拦折反光学系统的焦距为200 mm，

数为2，全视场为2.75°×2.2°。各视场光学传递函数显示设计的光学系统的成像质量接近衍射极限。得到的结果表明，利用消线性像散的共焦离轴两反系统与同轴透镜组联合设计，可以得到高性能无遮拦的折反射红外光学系统。

Abstract

A new design method for unobsured catadioptric infrared optical systems was presented to avoid the obstruction of traditional catadioptric systems. The linear aberration reasons of conventional off-axis two-mirror telescopes were analyzed. As the unobscured optical system is difficult to be designed because of the linear astigmatism in the off-axis two-mirror telescope

the conditions to eliminate the linear astigmatism were discussed. On the conditions

an design idea of unobsured catadioptric optical systems was proposed through associating with coaxal lenses. By combining different relay lenses

two unobsured catadioptric infrared optical systems were implemented for 3-5 μm MW IR and 8-12 μm LW IR applications. The optical design parameters of the two systems are effective focal length of 200 mm

and the full field of view of 2.75°×2.2°. The performance of the two systems approaches to diffractive limit from Modulation Transfer Function(MTF) curves of all field of view. The design results show that the high performance unobscured catadioptric infrared optical systems will be obtained by combination of zero linear astigmatism confocal off-axis two-mirror telescopes with coaxal lenses.

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references

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