针对单点金刚石车削金属反射镜的加工检测迭代周期较长的问题，引入了动态范围大、检测速度快的条纹反射法，实现了对金属反射镜的在位面形检测，提高了制造效率。对条纹反射面形检测原理进行了研究，通过光线追迹程序对口径为100 mm的反射镜面进行了模拟仿真，分析了条纹反射在位面形检测系统完成微米级面形检测时的位姿标定需求；对口径为100 mm的凹球面金属反射镜进行了在位检测，测量精度优于1 μm。研究结果对单点金刚石车削反射镜的加工提供了参考。

As for the problem of long machining and measurement iteration cycle of metal reflectors by the single point diamond turning, the fringe reflection method with a large dynamic range and fast detection speed is introduced, and the on-machine surface measurement of metal reflectors is realized, which improves the manufacturing efficiency. The mechanism of surface shape measurement based on fringe reflection is investigated. By the ray tracing program, the simulation is conducted as for the reflector surface with an aperture of 100 mm and the micron-sized requirement of position calibration in the fringe reflection on-machine surface shape measurement system is analyzed. The on-machine measurement of concave spherical metal reflectors with an aperture of 100 mm is carried out, and the measurement precision is superior to 1 μm. This research provides a certain reference for the machining of reflector by the single point diamond turning.