Based on the double refraction principle of outgoing beam in the biprism,the displacement method for measuring the small angle of biprism is presented.The error of this method is also discussed.
利用
棱镜引起出射光束方


折的原理,提出
一种位移法

璃
棱镜微小底角的新方法,介绍

的基本原理,讨论

误差.
我们指正。


