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一、几种测量五棱镜的方法一块经过精密加工的五棱镜,能够将光线改变恒定的90°方向。当棱镜在平行于其主截面的平面内旋转一个不大的角度,或当棱镜在平行于其主截面的平面内平行移动一定的距离时,均对折射出去的出光方向没有影响。五棱镜中有二个夹角为45°的反射面,和二个夹角为90°的折射面,它们的二根角平分线基本上重合。为了说明五棱镜的特性,可以先研究二块夹角互为45°的平面反射镜的作
First, several methods of measuring the pentaprism A precision-machined pentaprism, the light can be changed to a constant 90 ° direction. When the prism is rotated by a small angle in a plane parallel to its main section or when the prism is moved parallel to each other in a plane parallel to its main section for a certain distance, it has no effect on the direction of the outgoing light. The pentaprism has two reflecting surfaces with an included angle of 45 ° and two refracting surfaces with an included angle of 90 °. The two bisector bisectors basically coincide with each other. In order to illustrate the characteristics of pentaprism, you can first study two angle between each other 45 ° plane mirror for