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Method for creating and a system for using a constant vertical resolution toroidal display

  • US 9,110,358 B1
  • Filed: 06/04/2013
  • Issued: 08/18/2015
  • Est. Priority Date: 06/04/2013
  • Status: Active Grant
First Claim
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1. A method of producing a toroidal constant vertical resolution surface acting as a rear-projection display screen for receiving and displaying a substantially constant vertical resolution projected image from an image projector, the method comprising:

  • identifying an eye-point of a viewer to be positioned behind the rear-projection display screen of the constant vertical resolution surface from the image projector;

    identifying a viewing distance from the eye-point of the viewer to an inside surface of the rear-projection display screen of the constant vertical resolution surface in the direction of the image projector;

    identifying a projection distance from the image projector to an outside surface of the rear-projection display screen of the constant vertical resolution surface in the direction of the eye-point of the viewer;

    creating a constant vertical resolution elevation curve based on a locus of points defined by an intersection ofa set of equal angular increment lines of the viewing distance from the eye-point of the viewer witha set of equal pixel size increment lines of the projected image from the image projector based on the projection distance from the image projector; and

    creating the toroidal constant vertical resolution surface defined by at least a portion of the constant vertical resolution elevation curve being at least partially rotated about at least a portion of a central vertical axis intersecting with the eye-point of the viewer to produce a constant vertical resolution surface in a vertical direction as a function of elevation.

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