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A Convenient and Inexpensive Method to Achieve Stereopsis with a 2D Display in PCs, TVs and Other Devices

IP.com Disclosure Number: IPCOM000123398D
Original Publication Date: 1998-Oct-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 2 page(s) / 63K

Publishing Venue

IBM

Related People

Kwok, TY: AUTHOR [+2]

Abstract

Stereopsis can be achieved with a 2D display of TVs or PCs by filming or computing separate images for the left and right eyes and channeling each image to the respective eye. There are several stereo display techniques (Ref. 1). Image pairs can be displayed on separate monitors or in separate windows on the same monitor and then viewed with a stereo viewer. Multiplexing left and right images in time with a mechanical or electronic shutter is a more popular technique. Varifocal mirror, head-mounted display and digital holography are other techniques. However, all these techniques are inconvenient and too expensive for the average consumers or the household use.

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A Convenient and Inexpensive Method to Achieve Stereopsis with a
2D Display in PCs, TVs and Other Devices

   Stereopsis can be achieved with a 2D display of TVs or PCs
by filming or computing separate images for the left and right eyes
and channeling each image to the respective eye.  There are several
stereo display techniques (Ref. 1).  Image pairs can be displayed on
separate monitors or in separate windows on the same monitor and then
viewed with a stereo viewer.  Multiplexing left and right images in
time with a mechanical or electronic shutter is a more popular
technique.  Varifocal mirror, head-mounted display and digital
holography are other techniques.  However, all these techniques are
inconvenient and too expensive for the average consumers or the
household use.

   The idea of this disclosure consists of two essential parts:
  1.  Stereopsis sheet with opposite direction polarized filters
      in alternate meshes.  The mesh can be in the range of
      1x1 to 5x5 pixels area.
      The stereopsis sheet can be made from the well-known
      commercial polarizing material called Polaroid or some
      other commercial products (Ref.  2).  There exists in
      this Polaroid sheet a certain characteristic polarizing
      direction.
      The Polaroid sheet will transmit only those wave-train
      components whose electric vectors vibrate parallel to
      this direction and will absorb those that vibrate at
      right angles to this direction.
      The Polaroid sheet is first coated with photo resist and
      exposed to photo mask patterned with alternate meshes,
      and then etching and striped off the photo resist.  Then
      two Polaroid sheets of polarized filt...