非制冷焦平面热像仪用双视场红外光学系统

介绍了一种用于非制冷凝视焦平面探测器的长波红外双视场光学系统设计实例,该系统工作波段为8 m～12m,变倍比为3倍,采用轴向移动变焦方式.变倍透镜组可实现变倍、调焦及温度补偿功能,简化了系统机电设计,具备体积小、重量轻、功耗低等优点,并用ZEMAX光学设计软件进行了像质评价.

A Dual Field of View Optical System for Infrared Uncooled Focal Plane Arrays

A dual field-of-view optical system for infrared stating focal plane arrays was designed in this paper. The operating waveband of the system is 8412 m, and zoom ratio is 3 X. The optical configuration is based on the axial motion of a lens group along the optical axis. The same lens is also used for focusing at near objects and for athermalization by very small axial movement. The optical system make mechanism and electron simplified, which have the advantages such as small size, light weight and little power consumption. The optical system image quality was evaluated with the ZEMAX optical design software.