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US 9,244,339 B2Granted
Systems and methods for displaying an image or video on a retro-reflective screen
AssigneeMirraviz, Inc.
InventorMichael Wang
Life of this patent
Estimating the term…
Abstract
A display system comprises a projector combined with a retro reflective screen and a viewer distance from the projector such that the observation angle is less than approximately 2-3 degrees. The brightness of the image on the screen for the proposed display system is increased by a factor of ˜100-500× as compared to traditional display systems with for an equivalent power/intensity light source.
Claims25
A display system, comprising:
- a retro-reflective screen configured to reflect incident light along a direction that is substantially anti-parallel to the direction of propagation of said incident light;
- a projector for projecting light characterizing an image or video onto said retro-reflective screen without the passage of light through a beam splitter;
- and
- a computer processor in communication with a light emitter and a detector, wherein the computer processor is programmed to (i) direct light to said retro-reflective screen using said light emitter, (ii) detect markings on said retro-reflective screen using said detector, and (iii) based on said blocking markings, determine a position and orientation of a viewer relative to said retro-reflective screen.
1 more element
A method for projecting an image or video, comprising:
- (a) directing projected light from a projector to a retro-reflective screen in optical communication with said projector, wherein said projected light characterizes an image or video, and wherein said retro-reflective screen is configured to reflect incident light along a direction that is substantially anti-parallel to the direction of propagation of said incident light;
- (b) presenting light reflected from said retro-reflective screen to a viewer that is adjacent to said projector, wherein said viewer is at an observation angle less than about 3° at a distance of at least about 2 feet from the retro-reflective screen;
- and
- (c) determining a position and orientation of said viewer relative to said retro-reflective screen by (i) directing light to said retro-reflective screen using a light emitter, (ii) detecting markings on said retro-reflective screen using a detector.
1 more element
A method for providing three-dimensional viewing, comprising:
- projecting light from a first projector and second projector onto a retro-reflective screen, the first projector adapted to have an optical path adjacent to a left eye of a viewer and the second projector adapted to have an optical path adjacent to a right eye of the viewer,
- determining a position and orientation of said viewer relative to said retro-reflective screen by (i) directing light to said retro-reflective screen using a light emitter, (ii) detecting markings on said retro-reflective screen using a detector,
- wherein light from each of said first projector and second projector is at least partially reflected from said retro-reflective screen,
- wherein:
- (i) reflected light, upon projection from said first projector, has a higher intensity when viewed with the left eye of the viewer than the right eye of the viewer, and
- (ii) reflected light, upon projection from said second projector, has a higher intensity when viewed with the right eye of the viewer than the left eye of the viewer.
3 more elements
Dependencies are inferred from the claim text.