摘要
为了研究旋转二次曲面薄透镜与二次曲面反射镜所组成折反折光学系统的成像问题,根据等效光学系统理论探讨了该折反折系统的光学性质,并对系统基点和基面的位置进行了计算,确定了该系统等效反射面、光心和焦点的位置,正确导出了系统的等效曲率半径、焦距和物像公式,发现旋转二次曲面折反折光学系统等效为一个简单球面镜,当焦点位于等效反射面的左方时,折反折系统是一个会聚光学系统;焦点位于等效反射面的右方时,是一个发散光学系统.
In order to research the imaging problem of the refraction-reflection-refraction sytem composed of the rotational conicoid thin lens and the conicoid reflecting mirrors, the optical characteristic of this system is discussed based on the theory of the equivalent optical system. And the positions of the cardinal point and cardinal plane of the system are calculated and the positions of the equivalent reflecting plane, optical center and focal point are determined. The equivalent curvature radius, focal length and the imaging formula of the system are derivated accurately. And that the rotational conicoid refraction-reflection-refraction system can be equivalent to a simple spherical mirror is found. When the focal point is on the left of the equivalent reflecting plane, the refraction-reflection-refraction system is a convergent system. And when the focal point is on the right, the system is a divergent one.
出处
《纺织高校基础科学学报》
CAS
2009年第1期98-101,共4页
Basic Sciences Journal of Textile Universities
基金
国家自然科学基金资助项目(10672143)
关键词
旋转二次曲面
折反折系统
焦点参数
等效
光心
焦距
rotational conicoid
refraction-reflection-refraction system
focus parameter
equivalent
opticalcenter
focal length
