Vehicle rearview mirror system

  • US 20040032676A1
  • Filed: 04/30/2003
  • Published: 02/19/2004
  • Est. Priority Date: 05/03/2002
  • Status: Active Grant
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First Claim
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1. A rearview mirror system for a vehicle, said rearview mirror system comprising:

  • an electro-optic reflective element;

    an ambient light sensor that is operable to sense ambient light;

    a glare light sensor that is operable to sense glare-producing light; and

    a circuit that is responsive to said ambient and glare light sensors and which establishes a reflectance level of said reflective element, said circuit comprising a sensor-responsive device and a controller, said sensor-responsive device producing an output that is a function of light sensed by said glare and ambient light sensors, said controller connecting one of said glare and ambient light sensors at a time with said sensor-responsive device to establish glare and ambient light levels and thereby the reflectance level of said reflective element.

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