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3-D imaging system

  • US 20030146883A1
  • Filed: 02/14/2001
  • Published: 08/07/2003
  • Est. Priority Date: 08/28/1997
  • Status: Abandoned Application
First Claim
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1. A 2-dimensional display device on which an image formed by discrete pixels is presented, the display device having an array of optical elements aligned respectively in front of the pixels and means for individually varying the effective focal length of each optical element to vary the apparent visual distance from a viewer, positioned in front of the display device, at which each individual pixel appears, whereby a 3-dimensional image is created, characterized in that each optical element (2) has a focal length which varies progressively along surfaces oriented generally parallel to the image, and characterized by means (18, 65) for displacing minutely within a pixel the location (5b, 6b, 7b) at which light is emitted according to a desired depth such that there is a corresponding displacement of an input location (5, 6, 7) of the light along an input surface of the optical element whereby the effective focal length is dynamically varied and the apparent visual distance (5a, 6a, 7a) from the viewer varies according to the displacement of the input location of light.

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