Patent ID: 6330088
Filing Date: 2001-12-11
Classification: G03H

Abstract:
An apparatus for printing holographic stereograms, comprising:a light source that produces a coherent beam;a beam splitter that splits the coherent beam into an object beam and a reference beam;a material holder holding a holographic recording material having elemental holograms;an object beam unit for displaying a rendered image and for conditioning the object beam with the rendered image to interfere with the reference beam at a chosen elemental hologram;a reference beam-steering system for directing the reference beam to interfere with the object beam at the chosen elemental hologram and with an angle of incidence with respect to a normal of the chosen elemental hologram, the reference beam-steering system being operable to adjust the angle of incidence for at least two of the elemental holograms such that angles of incidence for the at least two of the elemental holograms are independent of each other; anda computer programmed to control at least one of the interference of the object beam and the reference beam and the delivery of the rendered image to the object beam unit.