Manufacturing model research of active lap for large aspheric mirrors
Manufacturing model research of active lap for large aspheric mirrors
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发表时间：
2005
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通讯作者：
Fan Bin
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作者：
Fan Bin
计算机控制主动研磨（CCAL）加工是相对于传统加工和计算机控制光学面形（CCOS）的一种新型大型非球面加工技术。在研究主动盘结构和工作特性的基础上，建立了主动盘的去除函数模型。在分析边缘效应的基础上，通过压力补偿的方法对建立的模型进行了优化。在Φ 1300 mm（F/2）主动研磨非球面镜的实验中，用优化模型预测的镜面面形与Hartmann-Shack波前传感器检测的镜面面形基本吻合。
Computer Controlling Active Lap (CCAL) manufacture is a new manufacturing technology compared with the traditional manufacture and Computer Controlling Optical Surface (CCOS) for large aspheric mirrors. The removal function model of active lap is found based on the investigation of active lap structure and working features. After analyzing the edge effect, we optimize the founded model through the method of pressure compensation. The mirror surface predicated by the optimized model above basically matches the mirror surface tested by Hartmann-Shack wavefront sensor during the experiments of Φ1300mm (F/2) aspheric mirror manufactured by active lap.