锥体棱镜是激光测距和激光干涉计量等应用中的一种常用元件。在这些应用中都要求它具有极高的精度(一般90°角的角误差要求在1″以内)。高精度锥体棱镜的角误差可用泰曼干涉仪进行测量。但这种干涉仪较昂贵,只有不多的光学工厂的计量室才具备。本文介绍一种简易的激光点光源干涉检测方法,它是检测平行平晶楔角方法的一个推 Cone prisms are commonly used components in applications such as laser ranging and laser interferometry. In these applications are required to have high precision (usually 90 ° angle of the angular error requirements within 1 ".) High-precision pyramidal prism angle error can be measured using the Teijin interferometer. However, this interferometer is more expensive , Only a few of the optical factory metering room with.This article describes a simple laser point light source interference detection method, which is the detection of parallel flat wedge angle method of a push