Automatic lighting device and method for controlling light

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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Details

C340S937000, C180S272000, C362S017000, C362S018000, C362S465000, C362S487000

Reexamination Certificate

active

07639149

ABSTRACT:
An automatic lighting device includes an illuminance detector for detecting an external illuminance around a vehicle, a light controller for turning on/off a vehicular light, a driver's characteristics detector for acquiring information about driver's physical characteristics, and a threshold setting element for setting the illuminance threshold in accordance with the driver's physical characteristics. The controller turns on the light when the external illuminance is not more than the illuminance threshold.

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patent: 5734357 (1998-03-01), Matsumoto
patent: 7424135 (2008-09-01), Gifford et al.
patent: 7486200 (2009-02-01), Gerber
patent: 2004/0105264 (2004-06-01), Spero
patent: 2007/0273492 (2007-11-01), Hara et al.
patent: 11-183181 (1999-07-01), None
patent: 2003-291718 (2003-10-01), None
patent: 2004182006 (2004-07-01), None

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