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Stereoscopic image intensity balancing in light projector

  • US 8,237,777 B2
  • Filed: 06/25/2009
  • Issued: 08/07/2012
  • Est. Priority Date: 06/25/2009
  • Status: Expired due to Fees
First Claim
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1. A stereoscopic light projection system comprising:

  • a stereoscopic image forming subsystem configured at least to output stereoscopic light comprising modulated left-eye and right-eye light beams, including;

    a light source subsystem configured to generate left-eye and right-eye light beams, anda light modulation subsystem configured to generate the modulated left-eye and right-eye light beams by modulating the respective left-eye and right-eye light beams in a manner consistent with stereoscopic image data;

    a light-intensity sensing subsystem including at least one light intensity sensor to sense light intensities in either the left-eye and right-eye light beams or the modulated left-eye and right-eye light beams; and

    a light-intensity-correction subsystem configured at least to (a) determine a difference in the sensed light intensities between the left-eye and right-eye light beams or between the modulated left-eye and right-eye light beams and (b) control the light source subsystem to change an intensity of the left-eye light beam or the right eye light beam if an absolute value of the determined difference in the sensed light intensities exceeds a threshold amount.

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