[1]刘秀军,张金旺,彭垚. 中波红外光学系统无热化设计[J].红外技术,2012,34(10):602-607.
 LIU Xiu-jun,ZHANG Jin-wang,PENG Yao. Athermal Design of a MWIR Optical System[J].Infrared Technology,2012,34(10):602-607.
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 中波红外光学系统无热化设计
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《红外技术》[ISSN:1001-8891/CN:CN 53-1053/TN]

卷:
34卷
期数:
2012年10期
页码:
602-607
栏目:
出版日期:
2012-12-31

文章信息/Info

Title:
 Athermal Design of a MWIR Optical System
文章编号:
1001-8891(2012)10-0602-06
作者:
 刘秀军张金旺彭垚
 四川长虹电子科技有限公司
Author(s):
 LIU Xiu-junZHANG Jin-wangPENG Yao
 Sichuan Changhong Electronics Technology Development Co., Ltd
关键词:
 中波红外光学设计无热化设计二次成像
Keywords:
 MWIRoptical designathermal designre-imaging
分类号:
TN216
文献标志码:
A
摘要:
 

介绍了无热化在红外光学系统中的作用和意义,分析了温度对光学参量的影响,探讨了无热化设计方法及光学被动式无热化基本原理。设计了一种用于320×256制冷型探测器光学被动式无热化中波红外光学系统,镜筒材料采用钛合金,光学材料为硅、锗和硒化锌组合消热差。该系统在-50~70℃温度范围内,最大离焦量小于1倍焦深,空间分辨率17 lp/mm处,光学调制传递函数(MTF)值大于0.7,比较接近衍射极限,探测器单像元内能量集中度大于84%。分析结果表明:该系统具有良好的成像质量和无热效果。

Abstract:

The function and meaning of athermalization in infrared optical system was introduced. The influence of temperature on the optical parameters was analyzed. The athermal design methods and the principle of optical passive

thermalisation were discussed. A midwave infrared optical system for 320×256 cooled detector was designed, in which the optical passive athermalisation was applied using optical material Si Ge and ZnSe with mechanical material

titanium alloy in the optical system. The MTF is greater than 0.7, which close to diffraction limit in the spatial

frequency 17 lp/mm, and more than 84% of the diffraction energy was focused in single pixel within -50~70℃. Those results show that the optical system has good image quality and athermal effect.

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备注/Memo

备注/Memo:
 收稿日期:2012-9-2.
作者简介:刘秀军(1980-),男,黑龙江绥棱人,硕士,工程师,主要从事红外光学系统设计及整机评价方面工作。
更新日期/Last Update: 2013-05-09