Patent ID: 7064310

Claim:
A vehicular electro-optic rearview mirror system, comprising: a vehicle including a passenger compartment; an interior rearview mirror assembly in said passenger compartment; said interior rearview mirror assembly having an interior electro-optic mirror reflective element; at least one exterior rearview mirror assembly outside of said passenger compartment; said exterior rearview mirror assembly having an exterior electro-optic mirror reflective element; an ambient detecting light sensor in said passenger compartment; a glare detecting light sensor in said passenger compartment; a control receiving an input from said ambient and glare detecting light sensors, said control generating an interior mirror reflectance level signal that establishes a reflectance level of said interior mirror reflective element, said control further generating an exterior mirror reflectance level signal that establishes a reflectance level of said exterior mirror reflective element; and said control including a sensitivity selection for establishing a sensitivity level as a function of light sensed by at least one of said ambient and glare detecting light sensors, wherein at least one of said interior mirror reflectance level signal and said exterior mirror reflectance level signal being at least a function of the sensitivity level established by said sensitivity selection.