衍射透镜的色散分析

Dispersion Analysis of Diffractive Lenses

基于标量衍射理论，本文分析了衍射透镜的色差，首次得出了计算其色散的数学表达式。结果表明，衍射透镜的色散包括两个部分：材料色散和波长色散。

On the basis of scalar diffraction theory,this paper analyses the chromatic aberration of the diffractive lenses,and obtains the mathematical expression of the dispersion of the diffractive lenses.The results show that this dispersion includes two parts:material dispersion and wavelength dispersion,and their owning percentages are different with the change of radius of lenses.