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Rear projection system with passive display screen

  • US 9,262,983 B1
  • Filed: 06/18/2012
  • Issued: 02/16/2016
  • Est. Priority Date: 06/18/2012
  • Status: Expired due to Fees
First Claim
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1. A system comprising:

  • a device comprising;

    a processor;

    a projector; and

    a light emitter configured to emit non-visible light;

    a display medium that is physically separate from the device, the display medium configured to;

    receive images projected onto a rear surface of the display medium by the projector, causing the images to be displayed for viewing on a front surface of the display medium at a first brightness level, andallow non-visible light directed to the rear surface of the display medium to pass, at least in part, through the display medium to an environment in front of the front surface of the display medium; and

    the device further comprising one or more computer-readable media storing computer-executable instructions that, when executed by the processor, cause the processor to perform acts comprising;

    determining that the image has decreased from the first brightness level to a second brightness level that is less than the first brightness level;

    based at least partly on the image decreasing from the first brightness level to the second brightness level, causing an additional instance of the image to be projected onto the rear surface of the display medium;

    detecting, based at least in part on an interaction of a user of the display medium with the non-visible light passed through to the environment, one or more gestures made by the user;

    determining one or more operations to be performed based on the one or more gestures; and

    performing at least one operation of the one or more operations.

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