摘要
基于Ritchey-Chretien系统,采用CODEV软件设计了具有4个非球面(包含2个高次非球面)的折反式光学系统.系统焦距为880mm,F数为5.6,波段0.43～0.7μm,视场角3°.结果表明,该系统在空间分辨率为60lp/mm时,调制传递函数大于0.5,成像质量接近衍射极限.该系统结构简单、体积小、重量轻,适用于航空遥感应用环境.
Based on the Ritchey-Chretien system, a refractive/reflective system with four aspheric surfaces （including two high order aspheric surfaces） was designed with the help of CODE V software. It has a focal length of 880 mm,F number of 5.6,waveband of 0. 4340.7μm,and field of view reaches 3°. It is shown that the value of modulation transfer fuetion is higher than 0. 5 at 60 lp/mm,image quality reaches the diffraction limit. The system with simpler structure, smaller size and lighter weight, can be used in high altitude airborne remote sensing.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2009年第4期896-899,共4页
Acta Photonica Sinica
基金
中国科学院光电技术研究所创新基金(ck0308)资助
关键词
光学设计
折反射系统
非球面
像质
Optical design
Refractive/reflective system
Aspheric surface
Image quality
