【摘要】 介绍了一种切换式双视场红外光学系统设计实例,该系统工作波段为3.7～4.8μm,变倍比为3倍,采用光学被动式消热技术保证系统在-40℃～+60℃温度范围内保持良好的成像质量。该系统具有结构简单、体积小、重量轻、像质高、环境适应性好等优点。并用ZEMAX光学设计软件进行了像质评价。更多还原

【Abstract】 A rotate-zoom optical system for medium wave 320×240 element IR FPA(Focal Plane Arrays) detector is designed in this paper.The operating waveband of the system is 3.7～4.8 ?m,and zoom ratio is 3×.The optical passive athermalization method is introduced to realize a high image quality in a wide temperature range of-40℃～60℃.Design result showed the rotate-zoom system has simple mechanism,compact structure,light weight,excellent image quality,and reliable performance within required temperature range.The optical system image quality is evaluated with the ZEMAX optical design software.更多还原