一种新的光学非球面度计算方法

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.

abstract {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.}