制冷型红外变焦光学系统设计  

Design of Cooled Infrared Zoom Optical System

作　　者：程伟宁 赵久良 CHENG Weining;ZHAO Jiuliang(Academy of Opto-Electronics,China Electronics Technology Group Corporation(AOE CETC),Tianjin,China)

机构地区：[1]中国电子科技集团公司光电研究院,天津

出　　处：《光电技术应用》2024年第4期37-41,共5页Electro-Optic Technology Application

摘　　要：设计了连续变焦中波红外光学系统,F数为4,工作波段为3.7~4.8μm。为了实现大变倍比,采用了机械补偿和换根的变焦方式,仿真分析了光学系统光的冷反射情况,对变焦曲线进行了优化。光学系统整体结构紧凑,在整个变焦过程中,图像清晰且曲线平滑。A continuous zoom mid-wave infrared optical system with an F-number of 4 and working wavelength range of 3.7~4.8μm is designed.To achieve a large zoom ratio,a mechanical compensation method with switching roots has been employed.The narcissus phenomenon is analyzed through simulation,and the zoom curve is optimized.The overall structure of the optical system is compact,and the image remains clear with a smooth curve during the entire zoom process.

关 键 词：红外 连续变焦 机械补偿 变焦曲线 

分 类 号：TN214[电子电信—物理电子学]