Patent
1985-08-22
1987-10-06
Corbin, John K.
350279, 350283, 350332, G02B 1700, G02F 113
Patent
active
046978836
ABSTRACT:
A control apparatus for controlling the glare shield of a reflecting mirror of a vehicle, wherein the reflecting mirror is provided with on the upper half and lower half portions respectively first and second electro-optic elements whose transmittance of light being variable, and when a first photo detecting circuit determines that incident light on the reflecting mirror detected by an incident light detector is the direct sunlight, a first control circuit applies a voltage to the first electro-optic element to cause the upper half portion of the reflecting mirror to become a glare shield condition, and when a second photo detecting circuit determines that the incident light detected by an incident light detector is light of a headlight of a following vehicle, a second control circuit applies the voltage to the second electro-optic element to cause the lower half portion of the reflecting mirror to become the glare shield condition.
REFERENCES:
patent: 3862798 (1975-01-01), Hopkins
patent: 4623222 (1986-11-01), Itoh et al.
patent: 4632509 (1986-12-01), Ohmi et al.
Hara Kunihiko
Itoh Hiroshi
Ohmi Shinya
Suzuki Yasutoshi
Corbin John K.
Lewis David
Nippondenso Co. Ltd.
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