摘要
本文阐明透镜的光心和节点的定义，指出了它们的不同点，并论证了两者重合的条件及所重合的空间位置。
The definitions of optical centre and nodal point of a lens is given and the differ-ence between them is pointed out． The condition under which they coincide and the positionwhere they coincide are also proved
出处
《大学物理》
北大核心
1995年第5期32-33,共2页
College Physics
关键词
透镜
光心
节点
lens
optical centre
nodal point
