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作者根据衍射光栅的原理讨论了点阵光栅全息图的产生和重现衍射效率，重现色彩以及视觉效果。根据理论结果，作者装备了一套简化的、能制作出丰富色彩的点阵光栅全息图的实验系统。为了增强点阵光栅全息图的闪耀效果和获得奇妙的动态视觉效果，作者在实验中采用了两项特有的单元技术，即光斑整形和像元移位
According to the principle of diffraction grating, the author discusses the generation of lattice grating holograms and the reproduction of diffraction efficiency, and the reproduction of colors and visual effects. Based on the theoretical results, the author is equipped with a simplified experimental system capable of producing a rich color bitmap hologram. In order to enhance the sparkling effect of lattice grating holograms and obtain a fantastic dynamic visual effect, the author uses two unique elemental techniques in experiments, namely, spot shaping and pixel shifting