Automatic lighting device and method for controlling light

  • US 7,639,149 B2
  • Filed: 04/12/2007
  • Issued: 12/29/2009
  • Est. Priority Date: 05/09/2006
  • Status: Expired due to Fees
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First Claim
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1. An automatic lighting device comprising:

  • an illuminance detector for detecting an external illuminance around a vehicle;

    a light controller for turning on/off a vehicular light to illuminate an outside of the vehicle, wherein the light controller turns on the vehicular light when the external illuminance is not more than an illuminance threshold;

    a driver'"'"'s characteristics detector for acquiring information about a driver'"'"'s physical characteristics; and

    a threshold setting element for setting the illuminance threshold in accordance with the driver'"'"'s physical characteristics.

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