点阵光栅全息图的研究

Theoretical and experimental study of dot matrix hologram

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。

Generation and reconstruction of dot matrix hologram are theoretically described.Diffraction efficiency,reconstruction color and visual effect of the dot matrix hologram are discussed by diffraction grating principle.According to the theoretical results,a simplified experimental system is set up to generate multicolor dot matrix hologram.Two unique techniques,spot shaping and pixel shifting,are adopted for improving sparkling and kinetic visual effects of dot matrix hologram in our experiments.