US 7,505,186 B2
Pulsed-laser systems and methods for producing holographic stereograms
Craig Newswanger, Austin, Tex. (US); Pankaj Lad, Austin, Tex. (US); Robert L. Sitton, Austin, Tex. (US); Qiang Huang, Austin, Tex. (US); Michael A. Klug, Austin, Tex. (US); and Mark E. Holzbach, Austin, Tex. (US)
Assigned to Zebra Imaging, Inc., Pflugerville, Tex. (US)
Filed on Dec. 13, 2005, as Appl. No. 11/301,528.
Application 11/301528 is a continuation of application No. 10/881889, filed on Jun. 30, 2004, granted, now 7,027,197.
Application 10/881889 is a continuation of application No. 10/167759, filed on Jun. 12, 2002, granted, now 6,806,982.
Claims priority of provisional application 60/352395, filed on Jan. 28, 2002.
Claims priority of provisional application 60/334834, filed on Nov. 30, 2001.
Prior Publication US 2006/0098260 A1, May 11, 2006
This patent is subject to a terminal disclaimer.
Int. Cl. G03H 1/26 (2006.01)
U.S. Cl. 359—23  [359/35] 37 Claims
OG exemplary drawing
 
1. An apparatus for recording holographic stereograms, comprising:
a pulsed light source that produces a coherent beam;
a material holder holding a holographic recording material;
a material holder translation system operable to position the material holder holding the holographic recording material;
a beam splitter that splits the coherent beam into an object beam and a reference beam;
an object beam optical system, including a spatial light modulator for intensity modulating the object beam, for directing the object beam to interfere with the reference beam at the holographic recording material;
a reference beam optical system for directing the reference beam to interfere with the object beam at the holographic recording material; and
a computer coupled to the spatial light modulator and programmed to control delivery of a rendered image to the spatial light modulator, wherein the computer is coupled to the material holder translation system and is further programmed to generate a timing signal used both for timing a positioning of the material holder translation system and for timing a delivery of the rendered image to the spatial light modulator, and the timing signal is comprised in a signal that delivers the rendered image to the spatial light modulator.