反射定律符合费马原理且其光程取极小值之证明  

The Demonstration of the Conformity of the Law of Reflection with Fermat's Principle and the Minimalization of Optical Path

作　　者：杨春艳[1] 刘飞[1] 何永进[1] 吉恒 

机构地区：[1]玉溪师范学院理学院,云南玉溪653100 [2]通海县第二中学,云南通海652701

出　　处：《玉溪师范学院学报》2009年第12期36-38,共3页Journal of Yuxi Normal University

摘　　要：以费马原理为基础,用极值条件和方程有解条件导出光在两种均匀介质分界面处的反射定律,并证明了光在反射过程中,其实际光程取的是极小值.The reflection law on the interface of two homogeneous mediums is derived from Fermat's principle by using extremum conditions and solvable equation conditions,and it is demonstrated that the light in reflection process takes the path that minimizes the optical path length.

关 键 词：费马原理 反射定律 光程 极小值 

分 类 号：O43[机械工程—光学工程]