基于望远镜原理测量薄透镜焦距  

Measuring Focal Length of Thin Lens with Telescope Principle

作　　者：梁嘉豪 梁嘉慧 王文进 LIANG Jiahao;LIANG Jiahui;WANG Wenjin(Juancheng First Senior High School,Shandong Heze 274600;Hunan Institute of Science and Technology,Hunan Yueyang 414006)

机构地区：[1]鄄城县第一中学,山东菏泽274600 [2]湖南理工学院,湖南岳阳414006

出　　处：《大学物理实验》2019年第1期66-67,共2页Physical Experiment of College

摘　　要：当标准凸透镜与待测薄透镜(凸透镜和凹透镜)的焦点重合时会形成一个典型的望远系统。根据望远镜成像原理可知平行光入射时出射光线为平行光,利用这一特殊成像性质可以快速测定薄透镜的焦距。此实验方法原理简单、操作方便是一种实用的薄透镜焦距测量方法。The standard convex lens and the thin lens(convex lens and concave lens)to be measured can constitute a telescope when their focus overlaps.According to the principle of telescope,the emergent rays are parallel if the incident rays are parallel.The focal length of thin lens can be quickly obtained by the Special imaging features.This method is very simple and convenient to operate.

关 键 词：望远镜原理 平行光 薄透镜 焦距 

分 类 号：O4-33[理学—物理]