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Method and apparatus for calibrating glare-shielding glasses

  • US 7,585,068 B2
  • Filed: 11/30/2005
  • Issued: 09/08/2009
  • Est. Priority Date: 12/03/2004
  • Status: Expired due to Fees
First Claim
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1. A method for calibrating a glare-shield comprising:

  • measuring, using the glare shield, at least two relationships between a glare source and a glare calibration position at about the center of a user'"'"'s eye, wherein measuring each relationship includes determining a relationship between the glare source, a darkened region on the glare-shield, and the calibration position, and concurrently recording the position of the glare source on a photodetector associated with the glare-shield to produce a calibration data point;

    based upon the measured relationships, determining the location of a darkened spot on the glare shield in response to a location of glare on a glare sensor; and

    tracking the position of a pupil with a pupil tracking device, wherein the measured relationships are adjusted according to the position of the pupil.

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