【摘要】 军事和安全应用都需要利用红外探测技术来进行目标跟踪和搜索.由于红外或热成像系统探测的目标辐射能量低,因此需要光学系统具有强的集光能力;另外,用凝视方式可以获取大场景红外图像以去除传统的机械扫描装置,这要求红外光学系统具有足够大的视场.该工作研究的光学系统视场大于60×3.5度,F数F/1~F/2.5.采用了离轴三反射镜光学系统,系统结构简单,成像质量达到衍射极限.更多还原

【Abstract】 Infrared optical systems are widely applied in military and public security fields.Since the radiation energy of infrared objects is lower,the corresponding optical system must have a large numerical aperture in order to increase the system exploring sensitivity,and it also needs to provide a large field of view in order to remove the traditional scanning mechanism.This study described the optical design of an infrared system with a field of view of 60×3.5 degrees and an F-number of F/2.5-F/1.The design is based on a fast unobscured three-mirror anastigmatic(TMA) system.The final optical system is a three-mirror unobscured system.It has a simple structure and the quality of image arrives at the diffraction-limitation at infrared wavelengths.更多还原