摘要
介绍了离轴三反光学系统初始结构的设计方法,并用该方法进行离轴三反光学系统设计。用ZEMAX软件设计了一个焦距为1 000mm,F数为10,垂直轨道方向视场为±4.0°,沿轨道方向为6.0°和6.5°的光学系统。结果表明,该光学系统在空间频率71线对/mm处,调制传递函数均大于0.4,且三镜为球面,具有易于制造装调等优点。
The design principle of the unobscured three-mirror system was introduced and the off-axis three-mirror reflective optical system was designed.The optical system was designed by ZEMAX software,which has a focal length of 1000mm,F number of 10,and the field of view（short for FOV） is±4° across the track,6°and6.5°along the track.It showed that the MTF is higher than 0.4 at 71 lp/mm.Because the tertiary mirror is sphere,the system has the advantages of easier fabrication,alignment and test.
出处
《航天返回与遥感》
2010年第5期44-48,共5页
Spacecraft Recovery & Remote Sensing
基金
中国空间技术研究院自主研发课题
关键词
反射式光学系统
离轴三反
像质
光学设计
空间遥感
Reflective optics Unobscured three-mirror reflective system Image quality Optical design Space remote sensing
