Title

消旋检测装置的红外光学系统分析与设计

Translated Titles

Analysis and design of infrared optical system in despun device

Authors

高明;西安工业大学光电工程学院;高明;刘彦清;吕宏;倪晋平;西安工业大学光电工程学院,陕西 西安,710021

Key Words

消旋检测 ; 制冷型 ; 消热差 ; 衍射元件 ; 红外技术及应用 ; eliminating image rotation ; cooled thermal imaging ; athermalization design ; diffractive optical elements

PublicationName

激光與紅外

Volume or Term/Year and Month of Publication

44卷3期(2014 / 05 / 06)

Page #

254 - 257

Content Language

簡體中文

Chinese Abstract

设计了一种用于检测机载制冷型CCD消旋机构的长波红外光学系统。采用二次成像的方法保证冷光阑效率,应用光学被动消热差原理实现宽温度范围内热差补偿;系统引入以非球面为基底的衍射元件校正像差,探讨了衍射元件面形误差对系统光学性能的影响。设计结果表明,系统结构紧凑,重量轻,在-40~60℃的宽温度范围内实现了光学被动消热差的目的,达到100%的冷光阑效率及抑制冷反射的效果。

English Abstract

A long-wave infrared optical system to detect the refrigeration type CCD for airborne despun device was de-signed.The re-imaging configuration was used to meet cold shield efficiency requirement,and optical passive ather-malization principle was applied to achieve athermalization compensation with a wide range of temperature.The aberra-tions are corrected by the aspherical-diffraction element,and the effect of diffraction element shape error on the optical system is discussed.The design results show that this system has compact structure and light weight.It realizes the athermalization compensation in the temperature range of -40~60℃.100%cold aperture efficiency and the control-ling cold reflection are also achieved.

Topic Category 基礎與應用科學 > 物理
工程學 > 電機工程