强激光与粒子束2011，Vol.23Issue(12)：3163-3166,4.DOI:10.3788/HPLPB20112312.3163
计算全息检测离轴非球面的离散相位计算
Discrete phase calculation of computer generated hologram for off-axis aspheric surface test
摘要
Abstract
The phase of sample point should be calculated to design the computer generated hologram(CGH) for testing off-axis aspheric surface. The normal of the geometric center of off-axis aspheric surface was seen as the detection optical axis through shift and rotation. Then the phase distribution on off-axis aspheric surface was studied by ray tracing, and a calculation method of discrete phase was deduced, as well as the formulas for phase computation in three-dimensional coordinate system. The validity of this method is proven by calculating and comparing the phase distribution of a rotational symmetry aspheric surface. The results show that this method is correct, and the calculation accuracy can meet the requirement of CGH for off-axis aspheric surface test.关键词
离轴非球面/计算全息图/离散相位/光线追迹Key words
off-axis aspheric surface/ computer generated hologram/discrete phase/ray tracing/分类
数理科学引用本文复制引用
李世杰,陈强,吴高峰,李良红,鲜林翰..计算全息检测离轴非球面的离散相位计算[J].强激光与粒子束,2011,23(12):3163-3166,4.基金项目
国家重大专项课题 （）
