离轴三反射式光学系统设计

Design of Offaxis Threereflection Optical System

在三反射镜光学系统的几何光学理论基础上,详细讨论了三反射式光学系统的设计方法,从初级像差理论出发推导出了三反射式系统初始结构的计算公式,并且得出了系统结构形式与其基本结构参数和焦距之间的关系。通过设计实例讨论了不同的三反射式光学系统的特点及其应用。设计了大视场、小F数且实现衍射极限成像的光学系统,且能有效抑制杂散光。

Based on the geometrical optics theory of three-reflection optical system, the design method of the system is discussed in detail. According to primary aberration theory, a calculation formula of the three-reflection system initial structure is deduced. And the relationships among system structure, basic structure parameters and fo-cal length are obtained. The characteristics and the applications of three-reflection optical systems are discussed through design examples. The optical system with wide field of view, small F number and diffraction limit imaging is designed to suppress stray light effectively.