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US 9,807,380 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.
Claims18
A display system, comprising:
- a retroreflective screen configured to reflect incident light to a viewer that is at an observation angle less than about 3° at a distance of at least about 2 feet from said retroreflective screen;
- a projector for projecting light characterizing an image or video directly onto said retroreflective screen;
- and
- a computer processor in communication with said projector, wherein said computer processor is programmed to (i) measure an intensity of light reflected from said retroreflective screen, and (ii) dynamically adjust said light from said projector in response to said intensity measured in (i).
1 more element
A method for projecting an image or video, comprising:
- a. directing light characterizing an image or video from a projector directly onto a retroreflective screen in optical communication with said projector;
- b. presenting light reflected from said retroreflective screen to a viewer that is at an observation angle less than about 3° at a distance of at least about 2 feet from said retroreflective screen;
- c. measuring an intensity of light reflected from said retroreflective screen;
- and
- d. dynamically adjust said light from said projector in response to said intensity measured in (c).
2 more elements
Dependencies are inferred from the claim text.