一种可以兼顾远近距离的紧凑型武警用红外热像仪光学系统  

Optical System of Compact Thermal Imager for Near and Far Distances for Armed Police

作　　者：赵志远 ZHAO Zhiyuan(College of Information Engineering,Engineering University of PAP,Xi’an 710086,China)

机构地区：[1]武警工程大学信息工程学院,陕西西安710086

出　　处：《红外技术》2020年第12期1159-1163,共5页Infrared Technology

摘　　要：本文设计了一种可以兼顾远近距离的紧凑型武警用红外热像仪光学系统,给出了一个设计实例,系统工作波段为8~12μm,中心波长为10μm,长焦距为150 μm,短焦距为50 μm,F数为1.1,可匹配像元数为384×288、像元大小为17μm×17μm的非制冷红外焦平面探测器。系统通过变倍组的轴向移动实现变焦,通过引入二元光学面和非球面减小成像系统体积,减轻重量,提高成像质量,设计结果表明,该热成像系统取得了良好的成像,可用于火灾消防救援、森林防火、夜间侦查、边防监控等工作。A compact thermal imaging system, operating over both near and far distances, for armed police is introduced. A design example is proposed. The working band is 8–12 μm, the center wavelength is 10 μm, the long focal length is 150 μm, the short focal length is 50 μm, and the F number is 1.1. The system can match the performance of an uncooled focal plane infrared detector with a pixel number of 384×288 and a pixel size of 17 μm×17 μm. The system realizes zooming by the axial movement of the zoom group. By using binary optical surface and aspheric surface, the volume and mass of the imaging system are reduced, and the image quality is improved. The design results show that the thermal imaging system has appropriate image quality, which is suitable for fire rescue, fire prevention, night detection, and border monitoring.

关 键 词：光学设计 红外成像系统 紧凑型 非制冷焦平面 二元光学 

分 类 号：TN216[电子电信—物理电子学]