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
光束方向双向偏折的原
,提了一种位移法测量
璃双棱镜微小底角的新方法,介绍了测量的基本原,
了测量误差.
