Light control device for vehicle

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...

Reexamination Certificate

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Details

C340S439000, C340S468000, C340S469000, C340S309160, C340S600000, C340S602000, C362S464000, C362S466000, C362S276000, C315S077000, C315S082000, C315S083000

Reexamination Certificate

active

11012382

ABSTRACT:
In a light control device for a vehicle, a control portion determines whether an illuminance detected by an illuminance sensor reaches a first reference illuminance, and performs a turning on or off control of lights of the vehicle based on the determined result. When the control portion receives an external environment change signal from an environment change detecting means, the control portion uses a second reference illuminance higher than the first reference illuminance, instead of the first reference illuminance, and performs the turning on or off control when the illuminance detected by the illuminance sensor reaches the second reference illuminance. Accordingly, vehicle lights can be suitably turned on or off in accordance with an external environment of the vehicle.

REFERENCES:
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patent: 4139801 (1979-02-01), Linares
patent: 4357558 (1982-11-01), Massoni et al.
patent: 4613791 (1986-09-01), Kurihara et al.
patent: 6396040 (2002-05-01), Hill
patent: 7049950 (2006-05-01), Schmitt et al.
patent: 2003/0138132 (2003-07-01), Stam et al.
patent: 43 24 164 (1994-01-01), None
patent: A-S60-203542 (1985-10-01), None
patent: A-H04-368238 (1992-12-01), None
patent: A-10-315844 (1998-12-01), None

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