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US 6,293,687 B1Granted
Circuit with light emitting diodes for a motor vehicle indicator light, and a motor vehicle indicator light having such a circuit
AssigneeValeo Electronique
InventorsPascal Poirot, Azedine Hamzaoui
Life of this patent
Estimating the term…
Abstract
An indicator light for a motor vehicle includes a circuit comprising a printed circuit, a network of light emitting diodes carried by the printed circuit, and two power supply wires connected to the network. At least one of the power supply wires is a resistive wire having a linear resistance greater than 1 ohm per metre, the length of this wire being such that it provides regulation for the supply current to the diodes.
Claims12
A motor vehicle indicator light comprising
- a support, and
- a circuit carried by the support, said circuit comprising
- a plurality of light emitting diodes connected in a network, and
- two permanent power supply wires connecting the network to a power supply source,
- wherein at least one said permanent power supply wire is a resistive wire having a linear resistance greater than 1 ohm per meter, the length and the diameter of said resistive wire being such that said resistive wire ensures regulation of the power supply current to the light emitting diodes.
2 more elements
A circuit comprising:
- a plurality of light emitting diodes connected in a network and mounted on a support;
- and
- two permanent wires connecting the network to a power supply source, wherein one of the permanent wires is a resistive wire having a linear resistance greater than 1 ohm per meter, and has a length and a diameter such that the wire regulates the current for the light emitting diodes.
A circuit comprising:
- a plurality of light emitting diode connected in a network and mounted on a support;
- and
- means for connecting the network to a power supply source.
A circuit comprising:
- a plurality of light emitting diode connected in a network and mounted on a support;
- and
- two permanent wires connecting the network to a power supply source, wherein at least one of the permanent wires is a resistive wire having a linear resistance greater than 1 ohm per meter and a length and a diameter such that the wire regulates the current for the light emitting diodes, said resistive wire comprising nickel/chrome alloy and a sheath of insulating material capable of withstanding a temperature of 205° C.
Dependencies are inferred from the claim text.