Vehicular lighting system
AssigneeDonnelly Corporation
InventorsNiall R. Lynam, John O. Lindahl
Life of this patent
Estimating the term…
Loading patent…
AssigneeDonnelly Corporation
InventorsNiall R. Lynam, John O. Lindahl
Estimating the term…
An improved vehicle lighting system for a vehicle is provided. The lighting system includes a light assembly, which is configured so as to illuminate, for example, a ground area adjacent an entrance to the vehicle or an interior portion of the vehicle. The light assembly includes a single non-incandescent light source, which comprises a single high-intensity power light emitting diode. The single high-intensity power light emitting diode preferably has a luminous efficiency of at least about 1 lumen per watt when the single high-intensity power light emitting diode is operated and wherein the single high-intensity power light emitting diode is preferably operated at a forward current of at least 100 milliamps. The single high-intensity power light emitting diode is preferably provided with a heat dissipation element, which functions as at least one of a heat sink and a heat dissipater for the power dissipated by the single high-intensity power light emitting diode. The single high-intensity power light emitting diode operates at an operational voltage that is less the battery/ignition voltage of the vehicle. Preferably the light assembly is provided with at least one of a series power resistor and a DC voltage to DC voltage converter.
An improved ground illumination system for a vehicle comprising:
An improved interior lighting system for a vehicle comprising:
The improved interior lighting system according to claim 610, wherein said single high-intensity power light emitting diode operates at a forward current of at least about 350 milliamps.
An improved lighting system f or a vehicle, said lighting system comprising:
An improved ground illumination system for a vehicle comprising:
Dependencies are inferred from the claim text.