For the diffraction of a small aperture, the scalar diffraction has been modified by the vector diffraction theory.

在微小孔衍射的情况下，还讨论了矢量衍射理论对标量衍射理论相关处理的修正。

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Quasi-Optical Mode Converter is mainly adopted vector diffraction theory and Geometry optics theory, and the numerical results of complex reflector are analyzed.

准光模式变换器主要采用矢量绕射理论和几何光学理论，并结合两种理论设计复杂反射曲面。

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The result of vector theory is far from that of the traditional scalar diffraction theory for a typical DVD system, so vector diffraction theory must be adopted.

对于典型的DVD光学系统来说，矢量理论的结论与标量理论相差甚远，要得到正确的结果就必须采用矢量衍射理论。

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