U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Computer aided holography and holographic computer graphics

Patent 4778262 Issued on October 18, 1988. Estimated Expiration Date: Icon_subject December 23, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3832027

Holograms created from cylindrical hologram masters
Patent #: 4339168
Issued on: 07/13/1982
Inventor: Haines

Method and system for constructing a composite hologram
Patent #: 4364627
Issued on: 12/21/1982
Inventor: Haines

System for synthesizing strip-multiplexed holograms Patent #: 4411489
Issued on: 10/25/1983
Inventor: McGrew

Inventor

Application

No. 07/137179 filed on 12/23/1987

US Classes:

359/9, For synthetically generating a hologram359/23, Holographic stereogram359/32For reconstructing image

Examiners

Primary: Arnold, Bruce Y.

Attorney, Agent or Firm

International Classes

G03H 1/16 (20060101)
G03H 1/26 (20060101)
G03H 1/04 (20060101)

Abstract

Methods for generating holograms from a computer model of any object using a combination of numerical and optical means and the holograms produced thereby. An illumination model is provided to specify sources of light rays and dispersion particles of the object. Each light ray being specified by a path and an intensity function is traceable from a source via the object to a set of points in space by the computer. The hologram is synthesized from a plurality of smaller hologram elements. Each individual element sustains a field of view of the object. The light rays from the object lying within the field of view and along the lines of sight are sampled by the computer. Optical means are employed to physically reproduce the sampled light rays using coherent radiation. The reproduced coherent light rays are then interfered with a coherent reference beam to form the hologram element. Alternatively, the hologram elements are calculated by the computer with an analogous technique.

Other References

  • Rosen, "Focused Image Holography with Extended Sources", Applied Physics Letters, vol. 9, No. 9, pp. 337-339 (Nov. 1, 1966)
  • King et al., "A New Approach to Computer-Generated Holography", Applied Optics, vol. 9, No. 2, pp. 471-475 (Feb. 1970)
  • Goldstein et al., "3-D Visual Simulation", Simulation, pp. 25-31 (Jan. 1971)
  • Whitted, "An Improved Model for Shaded Display," Communication of the Assoc. for Computing Machinery, vol. 23, No. 6, pp. 343-349 (Jun. 1980)
  • "Topical Meeting on Holography Technical Digest", Mar. 31-Apr. 2, 1986 (cover sheet and three abstracts)
  • Teitel and Benton, "Anamorphic Imaging for Synthetic Holograms", (Abstract), Journal of the Optical Society of America, Dec. 1986
  • Holzbach, "Three-Dimensional Image Processing for Synthetic Holographic Stereograms", MIT Masters Thesis (1986)
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