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

Real-time holography system

Patent 5515183 Issued on May 7, 1996. Estimated Expiration Date: Icon_subject March 15, 2014. 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

Multiple recording system for video signals and optical images
Patent #: 3946430
Issued on: 03/23/1976
Inventor: Ueki ,   et al.

Three-dimensional television system using holographic techniques Patent #: 4376950
Issued on: 03/15/1983
Inventor: Brown ,   et al.

Inventor

Application

No. 213996 filed on 03/15/1994

US Classes:

359/9, For synthetically generating a hologram348/40, HOLOGRAPHIC356/457, Holography359/22, For producing or reconstructing images from multiple holograms (e.g., color, etc.)359/32, For reconstructing image359/559Using Fourier transform spatial filtering

Examiners

Primary: Shafer, Ricky D.

Attorney, Agent or Firm

International Classes

G03H 001/08
G03H 001/22

Foreign Application Priority Data

1991-08-08 JP

Abstract

A real-time holography system includes a matrix liquid crystal display, as used in a liquid-crystal television set, for producing a hologram. An image of an interference-fringe pattern caused by an object light wave and a reference light wave is converted into a video signal by a CCD camera, and the image of the pattern is reproduced on the display on the basis of the video signal. Therefore, a three-dimensional image can be reconstructed in real-time by making a reference light wave on the display.

Other References

  • SPIE/IS&T "Symposium on Electronic Imaging Science and Technology", published by IS&T-The Society for Imaging Science and Technology
  • "Real-Time Holography using the high-resolution LCTV-SLM", Nobuyuki Hashimoto et al., SPIE vol. 1461 Practical Holography V(1991) 291-331
  • "Remote Real-Time Reconstruction of Holograms Using the Lumatron", R. J. Doyle et al., Applied Optics, May 1972, vol. 11, No. 5, 1261-1264
  • "SPIE/IS&T Symposium on Electronic Imaging Science and Technology" published by IS&T-The Society for Imaging Science and Technolog
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