一种折反二次成像式长波无热化光学系统设计  

The Design of Catadioptric and Reimaged LWIR Athermalization System

作　　者：项建胜[1] 潘国庆[1,2] 张运强[1,2] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009 [2]航空制导武器航空科技重点实验室,河南洛阳471009

出　　处：《红外技术》2012年第11期644-647,共4页Infrared Technology

摘　　要：介绍了一种长波无热化光学系统,利用反射元件与折射元件光热效应相抵消的原理,实现了无热化设计。反射系统采用卡式结构形成一次像点,折射系统将一次像点最终成像在焦平面上。该系统在不采用衍射元件下实现了良好的无热化效果。A LWIR athermalization system is introduced. The athermalization design is realized by using the opto-thermal expansion coefficient difference of reflective and refractive elements. The first image plane is focused by Cassegrain system, and final image plane is focused by the refractive system. This optical system realizes athermalization without diffractive element.

关 键 词：折反系统 二次成像 无热化光学系统 

分 类 号：V443.5[航空宇航科学与技术—飞行器设计]