Electric lamp and discharge devices: systems – Special application – Vehicle
Patent
1994-04-06
1997-09-09
Pascal, Robert
Electric lamp and discharge devices: systems
Special application
Vehicle
307 108, 359601, 359604, 315149, 315159, G02F 117, H05B 3900
Patent
active
056660286
ABSTRACT:
An automobile headlamp and running light control system for controlling an operating state of automobile headlamps and tail/marker lamps, and determining an operating threshold for an automatic dimming rearview mirror system. The headlamp and running light control system including an ambient light sensing arrangement having an ambient light sensor which determines a present ambient light level in a vicinity of the vehicle, a first control arrangement for selecting an operating state of the vehicle lamps in accordance with an output of the ambient light sensor, a second control arrangement for determining the operating threshold of the automatic dimming rearview mirror system in accordance with the output of the ambient light sensor, and a lamp switching arrangement which activates and deactivates the vehicle lamps in response to the first control arrangement.
REFERENCES:
patent: 2912593 (1959-11-01), Deuth
patent: 4015137 (1977-03-01), Kniesly et al.
patent: 4376909 (1983-03-01), Tagami et al.
patent: 4793690 (1988-12-01), Gahan et al.
patent: 5204778 (1993-04-01), Bechtel
patent: 5451822 (1995-09-01), Bechtel et al.
Bechtel Jon H.
Knapp Robert C.
Schmidt David J.
Gentex Corporation
Kinkead Arnold
McKinnon Malcolm R.
Pascal Robert
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