象点附近的三维光分布状态的研究

A Study of the Distribution of Three-dimensiconal Light Near the Focus

本文根据惠更斯———菲涅耳积分计算 ,引入Lommel函数 ,对象点附近的三维光分布状态进行研究分析 ,计算出象点公差的近似值 。

Based on Huygens-Fresnel integral caculation and Lommal function, the paper centeres on how to caculate the approximate value of the common difference between focuses, through analysing the distribution of three-dimensional light near focus. It plays a guiding role, to a certain degree,in the study on the assembly of receiving surface in the system of image formation.