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Method and apparatus for a wide field of view display

  • US 8,194,193 B2
  • Filed: 02/08/2008
  • Issued: 06/05/2012
  • Est. Priority Date: 02/08/2008
  • Status: Active Grant
First Claim
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1. A method of producing a uniform resolution image on a tessellation of spherical surfaces acting as rear-projection screens, the method comprising:

  • creating a tessellation of a sphere using spherical surfaces associated with a set of display screens, wherein the tessellation of the spherical surfaces surrounds an eyepoint of a viewer on all sides and a top of the tessellation of the spherical surfaces, wherein each screen in the set of display screens has a selected curvature, wherein a set of projectors generates images for display on the tessellation of the spherical surfaces associated with the set of display screens;

    identifying the eyepoint of the viewer positioned inside the tessellation of the set of display screens;

    identifying a viewing distance from the eyepoint to each screen in the set of screens;

    identifying a projection distance from each projector in the set of projectors to each screen in the set of screens, wherein the selected curvature for each screen is identified based on a relationship between the eyepoint, the viewing distance, and the projection distance, wherein the selected curvature is determined based on a locus of points created by an intersection of lines drawn at equal angular increments from the eyepoint with a set of lines drawn at equal pixel increments at an image source through the projection point; and

    displaying a full field of view display with a uniform resolution on a surface of the tessellated sphere of display screens.

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