双波段透射式红外无热化光学系统设计  

Design of Dual-Band Transmission Infrared Non-Thermal Optical System

作　　者：黄辰旭 HUANG Chenxu(Luoyang Institute of Electro-Optical Equipment,AVIC,Luoyang 471000,China)

机构地区：[1]中国航空工业集团公司洛阳电光设备研究所,河南洛阳471000

出　　处：《河南科技》2023年第18期9-13,共5页Henan Science and Technology

摘　　要：【目的】随着光电探测技术的发展,双波段探测技术在识别伪装、消除干扰等方面的优势越来越明显。双波段共光路无热化红外光学系统设计成为机载光电领域发展的关键。【方法】该系统采用锗、硫化锌、IG4和硒化锌这4种材料,并搭配合适的正负光焦度,利用不同材料与铝的热膨胀系数存在的差异来实现消热差。【结果】该系统的焦距为320 mm、F数为2、工作波段为3~5μm和8~12μm,在-55~70℃的宽温范围内,该系统的MTF大于0.4(21 lp/mm)。【结论】该系统为实现双波段红外光学系统的小型化、轻量化提供了参考,并在机载光电探测设备中得到广泛应用。[Purposes]With the development of photoelectric detection technology,the advantages of dual-band detection technology in identifying camouflage and eliminating interference are becoming more and more obvious.The design of dual-band common-path athermal infrared optical system has be⁃come the key to the development of airborne optoelectronics.[Methods]The system uses four materials of germanium,zinc sulfide,IG4 and zinc selenide,and matches the appropriate positive and negative light intensity,and uses the difference in the thermal expansion coefficient of different materials and alu⁃minum to achieve athermalization.[Findings]The focal length of the system is 320 mm,and its F num⁃ber is 2,and the working bands are 3~5μm and 8~12μm.The MTF of the system is greater than 0.4(21 lp/mm)in a wide temperature range of-55~70℃.[Conclusions]The system provides a refer⁃ence for the miniaturization and lightweight of dual-band infrared optical system,and is widely used in airborne photoelectric detection equipment.

关 键 词：红外光学系统 消热差设计 双波段 共光路 

分 类 号：TG333[金属学及工艺—金属压力加工]