Patent attributes
A vehicular interior rearview mirror system includes an interior rearview mirror assembly having a mirror head adjustably mounted at a mounting structure. The mirror head includes a mirror casing and an electro-optic variable reflectance mirror reflective element. A glare light sensor senses glare light emanating from headlights of another vehicle rearward of the equipped vehicle. An ambient light sensor senses ambient light at the vehicle. The ambient light sensor comprises part of a rain sensing device disposed at an in-cabin side of a windshield of the vehicle. Mirror control circuitry is operable to adjust dimming of the mirror reflective element responsive to an output from the glare light sensor and an output from the ambient light sensor. Responsive to the output from the glare light sensor and the output from the ambient light sensor, the mirror control circuitry controls dimming of the mirror reflective element.
