VEHICLE REARVIEW MIRROR SYSTEM
First Claim
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 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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Accused Products
Abstract
A vehicle rearview mirror system includes 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 light and a circuit that is responsive to the ambient glare light sensors which establishes a reflectance level of the reflective element. The circuit produces an output that is a function of light sensed by glare and ambient light sensors. The circuit compares an output of a charge accumulation device with a reference, and the circuit selectively connects the glare sensor and the ambient light sensor with the charge accumulation device. The mirror system may include a display operable to project light through the reflective element and may control the intensity of the display as a function of the glare light and ambient light.
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Citations
1 Claim
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1. A rearview mirror system for a vehicle, said rearview mirror system comprising:
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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 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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Specification