一种工作于长波红外波段的40^(×)成像物镜设计  

Design of 40^(×)imaging objective lens in long-wave infrared band

作　　者：李锦程 谢洪波[1] 杨磊[1] 陈卉 孙毅轩 LI Jincheng;XIE Hongbo;YANG Lei;CHEN Hui;SUN Yixuan(Key Laboratory of Optoelectronics Information Technology(Ministry of Education),School of Precision Instruments and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学精密仪器与光电子工程学院,光电信息技术教育部重点实验室,天津300072

出　　处：《应用光学》2021年第2期229-235,共7页Journal of Applied Optics

摘　　要：为了同时满足热成像领域高分辨率与大探测范围的应用需求,基于机械正组补偿变焦理论,以一款长焦物镜为原型并采用浮动光阑结构,设计了一款高分辨率、高倍率的长波红外成像系统。系统的F数为1.2,变倍比为40×,焦距变化范围为5.86 mm~234.76 mm,无热化温度范围为−40℃~60℃,适配像元尺寸为12μm的长波红外焦平面探测器。In order to meet the application requirements of high resolution and large detection range in thermal imaging field,based on the theory of mechanical positive compensation zoom,an objective lens with the long focal length was used as the prototype and a floating diaphragm structure was adopted,and a long-wave infrared imaging system with high-resolution and high-rate was designed.The primary parameters of this system include F-number of 1.2,zoom ratio of 40×,focal length ranging from 5.86 mm to 234.76 mm,and athermalization temperature ranging from−40℃to 60℃,which is adapted to the long-wave infrared focal plane detector with the pixel size of 12μm.

关 键 词：长波红外波段 变焦成像系统 变倍比 机械正组补偿 

分 类 号：TN216[电子电信—物理电子学]