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Non-PWM vehicle lamp dimming arrangement

  • US 7,482,763 B2
  • Filed: 01/31/2006
  • Issued: 01/27/2009
  • Est. Priority Date: 01/31/2005
  • Status: Active Grant
First Claim
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1. A method for selectively controlling a level of illumination for an interior light in a vehicle, the method comprising:

  • supplying a current to at least one interior light source to produce a predetermined level of illumination;

    detecting existence of a nighttime condition; and

    reducing the current to the at least one interior light source using a shunt circuit whenever the nighttime condition is detected to produce a reduced level of illumination.

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