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.
利用双棱镜引起出射光束方向双向偏折的原理,提出
位移法测量
璃双棱镜微
的新方法,介绍测量的基本原理,讨论测量误差.
