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Method and system for recording spatially-multiplexed images of 3-D objects for use in stereoscopic viewing thereof

  • US 5,886,816 A
  • Filed: 06/07/1995
  • Issued: 03/23/1999
  • Est. Priority Date: 06/11/1990
  • Status: Expired due to Fees
First Claim
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1. A system for recording a spatially multiplexed image of an object for use for use in stereoscopic viewing thereof with high image quality and resolution, comprising:

  • first means for forming a first perspective image of said object along a first optical path and imparting a first polarization P1 to light emanting from said first perspective image so as to produce a first polarized perspective image;

    second means for forming a second perspective image of said object along a second optical path and imparting a second polarization state P2 to light emanting from said second perspective image so as to produce a second polarized perspective image, said second polarization state P2 being different than said first polarization state P1;

    an optically sensitive element having a recording surface;

    a micropolarization panel of electrically passive contruction directly mounted to the recording surface of said optically sensitive element and including;

    an optically transparent laminate portion mounted to said recording surface and having a thickness dimension on the order of about 10 to about 20 microns,an optically transparent substrate portion in direct physical contact with said laminate portion, andfirst and second optically transparent patterns permanently formed in said optically transparent laminate portion,said first and second optically transparent patterns physically interfacing each other at surfaces disposed above and substantially perpendicular to said recording surface, and each having a spatial period from about 25 microns to about 5000 microns;

    said first optically transparent pattern formed in said optically transparent plastic substrate being characterized by said first polarization state P1 and spatially modulating said first polarized perspective image in accordance with a first spatial modulation pattern so as to produce on said recording surface a first spatially modulated perspective image consisting of a first pixel pattern;

    said second optically transparent pattern formed in said optically transparent plastic substrate being characterized by said second polarization state P2 and spatially modulating said second polarized perspective image in accordance with a second spatial modulation pattern so as to produce on said recording surface a second spatially modulated perspective image consisting of a second pixel pattern, said second spatial modulation pattern being the logical complement of said first spatial modulation pattern; and

    an image combining means, disposed along said first and second optical paths, for optically combining and spatially superimposing said first and second spatially modulated perspective images on the recording surface of said optically sensitive element;

    whereby, the first and second pixel patterns of said optically combined and spatially superimposed images form a composite pixel pattern representative of a spatially multiplexed image composed of said first and second spatially modulated perspective images of said object, and being suitable for use in 3-D stereoscopic viewing of said object.

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