一、前言一般制造离轴抛物镜的工艺方法,是先加工成一个整体的大抛物镜,然后在其上面截取所需要尺寸的离轴抛物镜,如图1所示。这就需要有比离轴抛物镜直径大一倍以上的大块材料,否则,就不容易实现工艺上的要求。手修的工艺方法是直接加工成所要求的离轴抛物镜,其工艺特点:按图纸要求的工件尺寸下料,适当留些加工余量。粗磨阶 I. Introduction Generally, the process of manufacturing an off-axis paraboloid is to process a large parabolic lens into a whole, and then the off-axis parabolic mirror of the required size is intercepted thereon, as shown in FIG. 1. This requires large materials that are more than double the diameter of off-axis parabolic mirrors; otherwise, the process requirements are not easily achieved. Hand repair process is directly processed into the required off-axis parabolic mirror, the process features: According to the requirements of the workpiece size cutting drawings expected to leave some allowance. Rough grinding stage