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Tilt detection in illumination source

  • US 7,083,287 B2
  • Filed: 05/13/2003
  • Issued: 08/01/2006
  • Est. Priority Date: 05/13/2003
  • Status: Expired due to Fees
First Claim
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1. A method of making a projector having an image generating assembly, comprising:

  • optimizing light intensity reflected by a reflector of an illumination source when the image generating assembly is aligned with at least one reference axis, the light intensity being related to position of a luminary relative to the reflector;

    associating a tilt sensor with the image generating assembly to determine a tilt of the image generating assembly relative to the reference axis, wherein tilt of the image generating assembly effects positional change of the luminary relative to the reflector; and

    operatively coupling a control system to the tilt sensor, wherein the control system is configured to report tilt of the image generating assembly relative to the reference axis that exceeds a predetermined minimum threshold to diagnose a decrease in light intensity of the illumination source.

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