AUTOSTEREOSCOPIC PROJECTION SYSTEM
First Claim
1. An apparatus for projecting or displaying three dimensional (3D) images to a viewer, comprising:
- a projector array comprising a plurality of projectors each receiving an input image and projecting an image based on the input image;
a beam splitter with first and second surface, wherein the projected images strike the first surface and a portion is transmitted through the beam splitter;
a screen with a retroreflective surface positioned in the path of the projected images, wherein the transmitted portion is reflected back toward the beam splitter with a gain in brightness to strike and be reflected from the second surface; and
a viewing zone positioned proximate to a set of focal points for images reflected from the second surface of the beam splitter, wherein a 3D image is perceivable to a viewer that positions his eyes at a viewing location proximate to the viewing zone.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus projecting 3D autostereoscopic images viewers. The apparatus includes a projector array with projectors each receiving an input image such as digital video and projecting an image based on the input image. A beam splitter with first and second surfaces is positioned such that the projected images strike the first surface and a portion (e.g., 50 to 95 percent) is transmitted through the beam splitter toward a screen with a retroreflective surface. The retroreflective surface reflects the splitter-transmitted portion back along the same path but with increased brightness. The light reflected from the retroreflective surface strikes the second surface of the beam splitter and is reflected toward a display viewing zone provided at about the focal points of the reflected projectors. A 3D image is perceivable to a viewer who positions his eyes at or near any of two or more viewing locations proximate to the projection surface.
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Citations
24 Claims
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1. An apparatus for projecting or displaying three dimensional (3D) images to a viewer, comprising:
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a projector array comprising a plurality of projectors each receiving an input image and projecting an image based on the input image; a beam splitter with first and second surface, wherein the projected images strike the first surface and a portion is transmitted through the beam splitter; a screen with a retroreflective surface positioned in the path of the projected images, wherein the transmitted portion is reflected back toward the beam splitter with a gain in brightness to strike and be reflected from the second surface; and a viewing zone positioned proximate to a set of focal points for images reflected from the second surface of the beam splitter, wherein a 3D image is perceivable to a viewer that positions his eyes at a viewing location proximate to the viewing zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An autostereoscopic projection system, comprising:
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means for providing a plurality of image inputs; means for projecting an image for each of the image inputs; and means for directing the projected images to a display viewing zone with a plurality of viewing locations at which a viewer may view a 3D image from differing points of view. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. An autostereoscopic projection method comprising:
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providing a retroreflective surface and a beam splitter that is positioned at an angle relative to the retroreflective surface; capturing images of a subject with one or more cameras positioned at an array of camera locations; and projecting the captured images toward the beam splitter from projection lenses arranged in an array corresponding to the array of camera locations, wherein adjacent pairs of the projection lenses are spaced apart less than about 70 mm and wherein the projected images are transmitted through the beam splitter onto the retroreflective surface and then are reflected off the beam splitter, after being reflected back from the retroreflective surface with a gain in illumination level, towards a display viewing zone to display a 3D image to a viewer viewing a pair of the reflected images. - View Dependent Claims (21, 22, 23, 24)
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Specification