镜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.
双
镜
射光束方向双向偏折的原理,提了一种位移法测量玻璃双镜微小底角的新方法,介绍了测量的基本原理,讨论了测量误差.
