Design on the athermal infrared diffractive/refractive optical system in 3.2～4.5μm

SUN Qiang; WANG Zhao-qi; LI Feng-you; CAO Zhao-liang; LU Zhen-wu

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Design on the athermal infrared diffractive/refractive optical system in 3.2～4.5μm

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- Design on the athermal infrared diffractive/refractive optical system in 3.2～4.5μm
- Optics and Precision Engineering Vol. 10, Issue 2, Pages: 121-125(2002)
- 作者机构：
  
  1. 南开大学现代光学研究所, 光电信息技术科学教育部重点实验室天津,300071
  2. 中国科学院长春光机与物理研究所, 应用光学国家重点实验室,吉林长春,130022
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH703
- Received：10 September 2001，
  
  Revised：19 January 2002，
  
  Published Online：15 April 2002，
  
  Published：15 April 2002
- 稿件说明：
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孙强, 王肇圻, 李凤友, 曹召良, 卢振武. 红外3.2～4.5μm波段折射/衍射光学系统的减热差设计[J]. 光学精密工程, 2002,(2): 121-125

SUN Qiang, WANG Zhao-qi, LI Feng-you, CAO Zhao-liang, LU Zhen-wu . Design on the athermal infrared diffractive/refractive optical system in 3.2～4.5μm[J]. Editorial Office of Optics and Precision Engineering, 2002,(2): 121-125
孙强, 王肇圻, 李凤友, 曹召良, 卢振武. 红外3.2～4.5μm波段折射/衍射光学系统的减热差设计[J]. 光学精密工程, 2002,(2): 121-125 DOI：

SUN Qiang, WANG Zhao-qi, LI Feng-you, CAO Zhao-liang, LU Zhen-wu . Design on the athermal infrared diffractive/refractive optical system in 3.2～4.5μm[J]. Editorial Office of Optics and Precision Engineering, 2002,(2): 121-125 DOI：

摘要

研究了折射/衍射光学元件的温度效应及红外系统的设计理论及具体实例

给出了在红外3.2～4.5μm波段

5°视场范围

冷光栏效率100%

在-40～80℃温度变化范围情况下的红外混合减热差系统的设计结果.结果表明

使用折射/衍射光学系统的减热差设计方案

可令相应的传统光学系统减少一片元件

并且节省了昂贵的硒化锌红外材料.不仅能在较大视场内得到接近衍射极限的成像质量

较宽的温度工作范围

而且结构简单

体积小

重量轻.

Abstract

Based on the investigation on the thermal properties of the diffractive lens

the paper introduces a method and some examples for designing the athermal diffractive/refractive optical system in the infrared region. An optical system at 3.2～4.5μm with 100% cold shield efficiency

5-degree field of view was designed

associated with high optical quality at the temperature ranging from -40℃ to 80℃. With this designing scheme

there is decrease in the number of optical components for a conventional optical system by one piece

and the weight can be reduced by 1/4

and expensive Se-Zn IR material is saved. Furthermore

the image quality approaching the diffraction limit in a larger spatial field view and wider thermal range can be obtained.

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references

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Kanagawa Y,Wakabayashi S,Tiajime T et al.Multilens system design with an athermal chart[J].Appl.Opt, 1994,33(34):8009-8013.

Behrmann P, Bowen P.Influence of temperature on diffractive lens performance[J].Appl.Opt,1993,32(14):2483-2489.

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袁旭沧.光学设计[M].北京:北京理工大学出版社,1988.

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