Synthetic Holograms by Computer Assistance

The principle and recording process of synthetic holograms are studied. Novel encoding methods on stereo, motional sense, color and depth, as well as 2D area division to holographic viewing windows are discussed individually for the 2D/3D synthetic holograms. The recording parameters involved are calculated. It is found convenient and compact in displaying the 2D parallax pictures in LCSLMs (liquid crystal spatial light modulators) through computer control. It can eliminate the errors during the replacement and restoration of object plates in the traditional method. A rainbow hologram with motional sense has been recorded using LCSLM. The feasibility of this method is proved.