摘要
从三级像差理论出发,推导了光阑设于次镜镜框的共轴四反射镜光学系统的单色像差系数的表达式,并给出了四反射镜光学系统的基本设计流程图。在此基础上,对光学系统进行视场离轴,设计出了视场角为20°×0.6°,焦距为1343mm的视场离轴四反射镜光学系统。该光学系统无中心遮拦,结构紧凑,成像质量接近衍射极限,适用于空间遥感。
Based on the third order aberration expression, basic design process of four-mirror optical system with aperture stop on secondary mirror are given through aberration analysis. Then a system with effective focal length of 1343 mm and field of view of 20°×0.6° is designed by making the field of y-direction off axis. The structure of this system is unobstructed and tight, with imaging qualities approaching diffraction limit. The designed system is suit for the field of space optical remote sensing.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2013年第10期228-233,共6页
Acta Optica Sinica
关键词
光学设计
四反射镜光学系统
大视场
空间光学
optical design
four-mirror optical system
wide field of view~ space optics
