随着光学技术的发展,越来越需要广泛地采用高精度棱镜,这就给棱镜加工工艺提出了更高的要求。而现在,许多工厂对高精度棱镜的90°角大都采用“长方体”加工,但“长方体”不能解决棱镜任意角和同时解决两种光学平行差的精度要求。“棱镜体”就是将“长方体”加工棱镜90°角的原理推广到加工任意角棱镜的一种光学工具。 With the development of optical technology, it is more and more necessary to adopt high-precision prism widely, which puts forward higher requirements for the prism processing technology. Now, many factories use “cuboids” for 90 ° angles of high-precision prisms. However, “cuboids” can not solve any angle of the prism and simultaneously solve the accuracy requirements of the two optical parallel differences. “Prismatic body” is an extension of the principle of “cuboid” prism 90 ° to an optical tool for machining any angle prism.