The familiar optically recorded rainbow hologram is frequently used to produce color holograms. It is simple to compute the corresponding synthetic hologram structures, which would require no recording process and would be capable of displaying virtual three-dimensional objects. It is difficult, however, to materialize the computed structures because of the high space—bandwidth product required. To find a way around this problem we used a set of three computer-generated holograms as master holograms for an optical recording process in which each master hologram contains information about a different color. This reduces the space—bandwidth product requirements for the synthetic structures to convenient values.
© 1996 Optical Society of America
Bernhard Wesskamp, Andreas Jendral, and Olof Bryngdahl, "Hybrid color holograms," Opt. Lett. 21, 1863-1865 (1996)