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Lighting device for vehicle

  • US 6,853,899 B2
  • Filed: 08/15/2002
  • Issued: 02/08/2005
  • Est. Priority Date: 09/03/2001
  • Status: Expired due to Fees
First Claim
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1. A lighting device for a vehicle comprising:

  • vehicle current-position detecting means for obtaining position information;

    road information acquiring means for obtaining road information; and

    irradiation control means for deciding a running area based on the position information obtained by vehicle current-position detecting means and the road information obtained by road information acquiring means and carrying out irradiation control of a lighting tool for a vehicle based on the decided running area;

    wherein the irradiation control means decide a type of a running area, in which a vehicle is running, from the position information and the road information based on road information in a current position of the vehicle and road information about a road over which the vehicle has already run, and wherein, in a case in which results of previous decisions related to a running area are stored and are compared with a result of a present decision to change the running area, the irradiation control means gradually vary an irradiation state from an irradiation state before the change to an irradiation state after the change.

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