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.
利用双镜引起出射光束方向双向偏折
原理,提出了一种位
法
量玻璃双
镜微小底角
新方法,介绍了
量
基本原理,讨论了
量误差.