一种新的光学非球面度计算方法  

A New Method for Calculating Asphericity of Optical Aspheric Surface

作　　者：韦资华[1] 沈卫星[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《光子学报》2007年第4期730-732,共3页Acta Photonica Sinica

摘　　要：提出了一种新的、能完全统一二次非球面与高次非球面的非球面度计算,且能直接得出最接近球的球心位置的计算方法面积长度法.该方法的计算内涵是两条相似曲线分别与某一固定点围成的面积应相等,且两条曲线的长度应非常接近.计算实例表明该方法计算结果准确,且易于编程,运算速度快.　A new and precise method for calculating asphericity of optical aspheric surface was presented.The new method,named area length method can fully unifies the asphericity calculation for conicoid and high-order aspheric surface and it also can achieve the location of the center of the best fitting spheric surface directly.Through the analysis of the counting examples,the new method has shown its accurate fitting ability.The new method is also suitable for computer programming.

关 键 词：几何光学 非球面 面积长度法 最接近球面 

分 类 号：TQ171[化学工程—玻璃工业]