• US 20100207013A1
  • Filed: 04/23/2010
  • Published: 08/19/2010
  • 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;

    a circuit responsive to said ambient and glare light sensors, wherein said circuit compares an output of a charge accumulation device with a reference, said circuit selectively connecting said glare sensor and said ambient light sensor with said charge accumulation device; and

    wherein said circuit is operable to establish a reflectance level of said reflective element, said circuit producing an output that is a function of light sensed by said glare and ambient light sensors.

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