基于数字全息和计算全息的动态三色全息三维显示

Dynamic three-color holographic 3D display based on digital holography and computer generated holography

为了实现数字全息图和计算全息图再现像的融合,将数字全息、计算全息与空间光调制器相结合,构建了一个数字化动态三色全息三维显示系统,用数字全息术记录实际物体的全息图,用计算全息术计算得到虚拟物体的全息图,然后将2种全息图输入到空间光调制器中.结果显示:通过空间光调制器的衍射,在空间中得到虚拟信息与实际信息融合的再现像.该方法实现了数字全息图和计算全息图再现像的融合,达到了增强真实物体的三维显示效果.

A dynamic three-color holographic 3D display system based on digital holography and computer generated holography was designed to achieve the fusion of reconstructed images of digital hologram and computer generated hologram.The real objects′ hologram was recorded by digital holography,and the virtual objects′ holograms were calculated by computer generated holography.Then two kinds of holograms were loaded into the space light modulators respectively,and the reconstructed images of virtual and actual objects were fused in the space by diffraction of the space light modulators.The experimental results showed that the reconstructed images of digital hologram and computer generated holograms were fused through experiment and the 3D display effect of the real object was enhanced.