Vehicular lighting system

  • US 20020159270A1
  • Filed: 01/22/2002
  • Published: 10/31/2002
  • Est. Priority Date: 01/23/2001
  • Status: Active Grant
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First Claim
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1. An improved ground illumination system for a vehicle comprising:

  • an exterior mirror assembly adapted for attachment to a side of the vehicle;

    said exterior mirror assembly including a mirror reflective element, said reflective element mounted on an actuator whereby the rearward field of view of said mirror reflective element is adjustable by actuation of said actuator;

    said exterior mirror assembly including a ground illumination light assembly, said ground illumination light assembly configured so as to illuminate at least a ground area adjacent an entrance to said vehicle when said exterior mirror assembly is attached to said side of said vehicle and when said ground illumination light assembly is illuminated;

    wherein said ground illumination light assembly comprises a single non-incandescent light source, said single non-incandescent light source comprising a single high-intensity power light emitting diode, said single high-intensity power light emitting diode having a luminous efficiency of at least about 1 lumen/watt when said single high-intensity power light emitting diode is operated and wherein said single high-intensity power light emitting diode is operated at a forward current of at least about 100 milliamps;

    said single high-intensity power light emitting diode being provided with a heat dissipation element, said heat dissipation element adapted to function as at least one of a heat sink and a heat dissipater for power dissipated by said single high-intensity power light emitting diode;

    said single high-intensity power light emitting diode operating at an operational voltage that is less than a percentage of the battery/ignition voltage of the vehicle to which said exterior mirror assembly is adapted to attach; and

    wherein said exterior mirror assembly includes at least one of;

    i) a series power resistor, and ii) a DC voltage to DC voltage converter.

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