考虑坐标系特性的非球镜面最小修磨量确定算法

摘要

非球镜面修磨作为决定镜面几何面形精确性和光学物理性能的最终环节,其修磨的效率和质量决定了非球面制造全工艺环节的成败和效果.非球镜面修磨量的确定作为修磨工艺的前置工艺具有重要的作用.目前在工程实践中,修磨量的确定还不够优化.为此,研究了坐标系特性对修磨量的影响规律,提出了优化坐标系选择后的修磨量确定算法,因而可以得出非球镜面最小修磨量的确定方法.通过工程实例计算表明了基于坐标系特性的确定算法可以得到非球面修磨工艺的最小修磨量.%The grinding process of aspherical lens,served as the determining step of aspherical lens' geometry and physical characteristics,makes a crucial impact on lens' grinding efficiency and final quality for the whole processing period.Moreover,the calculation of grinding amount is of significant importance to the grinding process as it is the essential link before grinding.Unfortunately the related computation is not optimal enough so far.Therefore,the influence of the coordinate system on the grinding amount is studied,then based on the active selection of the coordinate system,the optimal grinding amount is achieved through Grinding Amount Algorithm (GAA) proposed in this paper.The GAA is verified through practical engineering case.