离轴反射式光学系统设计  

Designs of reflective off-axis system

作　　者：伍和云[1] 王培纲[2] 

机构地区：[1]安徽建筑工业学院数理系,安徽合肥230022 [2]中国科学院上海技术物理研究所,上海200083

出　　处：《光电工程》2006年第1期34-37,共4页Opto-Electronic Engineering

摘　　要：提出通过光瞳和视场离轴,实现无中心遮拦的离轴反射式光学系统设计方法。在同轴三反射光学系统基础上,将光瞳和视场适当离轴,实现镜间遮拦的消除。分主镜或次镜为系统孔径光阑两种情况,导出同轴三反射光学系统初级像差公式和初始结构参数计算公式。由三反射系统成像性质,进一步总结无焦光路条件。根据设计理论计算离轴三反射系统初始结构,利用Zemax优化得到无中心遮拦的离轴三反射空间观测望远镜。入瞳320mm,视场(±0.3°)×(±0.6°),焦距1800mm。A design method for unobstructed, off-axis, reflective optical system is proposed, Basea on the three-mirror anastigmat （TMA）, when pupil and field of view are off-axis properly, obstructing between mirrors is avoided. In view of aperture stop on the primary or secondary mirror, the primary aberration formula is deducted respectively. According to the image character of TMA, afocal optical conditions are acquired further. Unobstructed spatial observing telescope with excellent performance is designed with the help of Zemax, which have an entrance pupil diameter of 320mm, FOV of （±0.3°）×（±0.6°）and effective focal length of 1800mm.

关 键 词：离轴系统设计 光学系统设计 反射式光学系统 非球面系数 

分 类 号：TH702[机械工程—仪器科学与技术] TB851[机械工程—精密仪器及机械]