制冷型红外双波段广角无热化光学系统设计  

Design of cooled infrared dual-band wide angle athermal optical system

作　　者：栗洋洋 杨加强[1] 彭晴晴[1] 刘琳[1] LI Yang-yang;YANG Jia-qiang;PENG Qing-qing;LIU Lin(North China Research Institute of Electro-Optics,Beijing 100015,China)

机构地区：[1]华北光电技术研究所,北京100015

出　　处：《激光与红外》2023年第5期712-715,共4页Laser & Infrared

摘　　要：设计了用于制冷型红外双波段探测器的、广角光学系统,并进行了被动式消热差设计。镜头由6片透镜组成,通过不同镜片材料搭配来进行消色差设计,实现在环境温度-40~70℃范围内被动式消热差。光学系统采用中长波共焦面设计,设计波段为3.5~4.9μm和7.5~9.5μm,焦距为11 mm, F数为1.6,全视场角150°。结果表明,此光学系统工作范围大、结构简单、透过率高,能够实现在全工作温度范围内成像质量良好。In this paper,a wide angle optical system for a cooled infrared dual-band detector with passive thermal aberration is designed.The optical lens is composed of 6 lenses,and the athermal design is carried out by matching different optical materials to realize passive athermal design in the range of environment temperature-40~70℃.The optical system is designed with medium and long wave confocal plane.The designed wave band is 3.5~4.9μm and 7.5~9.5μm,the focal length is 11 mm,the F number is 1.6,and the full field of view is 150°.The results show that the optical system has the advantages of large operating range,simple structure,and high transmittance and can achieve good imaging quality in the full operating temperature range.

关 键 词：双波段 广角视场 光学无热化 共焦面 

分 类 号：TN214[电子电信—物理电子学]