【摘要】 基于标量衍射理论 ,分析了衍射透镜的色差 ,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 ,二者所占的比例随孔径值的不同而变化 .更多还原

【Abstract】 On the basis of scalar diffraction theory,the chromatic aberration of the diffractive lenses is analysed,and the mathematical expression of the dispersion of the diffractive lenses is obtained. The results show that this dispersion includes two parts: material dispersion and wavelength dispersion,which percentage is related to radius in lenses.更多还原