摘要
介绍了F数为1.25的长波红外光学系统,系统采用非制冷长波红外焦平面阵列探测器。在8～12μm波段、全视场为10°的条件下,分别设计了四片式折射物镜(Ge/Ge/ZnSe/Ge)和三片式(Ge/Ge/Ge)折衍混合物镜,有效焦距为70 mm,F数为1.25。设计结果表明三片式折衍混合物镜的成像质量比四片式折射物镜好,且使用的镜片数更少。
In order to make the image quality better, there are two ways. First, complicating the system. Second, taking in some special materials or surfaces. In this article, two systems were designed based on the two ways. The wavelength is 8-12μm, the EFFL is 70mm, the F number is 1.25, and the FOV is 10°. Comparing the two systems, it is obvious that the later system is better and lighter than the former.
出处
《红外技术》
CSCD
北大核心
2009年第4期193-195,209,共4页
Infrared Technology
基金
国家自然科学基金资助项目(60808028,40301031)
关键词
光学设计
红外光学系统
非制冷红外探测器
衍射元件
optical design
infrared opticalsystem
uncooledinfrareddetectors
diffractive elements
