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
向双向偏折的
,
出了一种位移法测量
璃双棱镜微小底角的
法,介绍了测量的基本,讨论了测量误差.
