Light-emitting diode
AssigneeCitizen Electronics Co., Ltd.
InventorNorikazu Kadotani
Life of this patent
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Abstract
A light-emitting diode includes a circuit board, a pair of electrodes provided on the circuit board, at least one light-emitting diode element electrically connected to the pair of electrodes, a central electrode for heat-dissipation, provided between the pair of electrodes on the circuit board, and a heat-dissipation plate disposed on the central electrode for heat-dissipation and including a reflection surface. The central electrode for heat-dissipation includes an upper central electrode disposed on the upper surface of the circuit board and a lower central electrode disposed on the lower surface of the circuit board and the upper central electrode thermally connected to the lower central electrode.
Claims10
A light-emitting diode, comprising:
- a circuit board;
- a pair of electrodes provided adjacent to opposite sides on the circuit board;
- at least one light-emitting diode element electrically connected to the pair of electrodes;
- a central electrode for heat-dissipation provided between the pair of electrodes on the circuit board;
- and
- a heat-dissipation plate having a treated surface of increased reflection at least formed on an upper surface of the heat-dissipation plate, and
- the heat-dissipation plate being disposed on the central electrode,
- the light-emitting diode element being disposed on the upper surface of the heat-dissipation plate and electrically connected to the pair of electrodes on the circuit board by a pair of wires,
- the pair of electrodes each including an upper electrode provided on an upper surface of the circuit board and a lower electrode provided on a lower surface of the circuit board and the upper electrode electrically connected to the lower electrode, the upper electrodes and the lower electrodes of the pair of electrodes disposed adjacent to the opposite sides on the circuit board.
A light-emitting diode, comprising:
- a circuit board;
- a pair of electrodes provided adjacent to opposite sides on the circuit board;
- at least one light-emitting diode element electrically connected to the pair of electrodes;
- a central electrode for heat-dissipation, provided between the pair of electrodes on the circuit board;
- and
- a heat-dissipation plate with a surface of increased reflection treatment at least formed on an upper surface of the heat-dissipation plate, and the heat-dissipation plate being made of aluminum and disposed on the central electrode,
- the light-emitting diode element being disposed on the upper surface of the heat-dissipation plate and electrically connected to the pair of electrodes on the circuit board by a pair of wires,
- the pair of electrodes each including an upper electrode provided on an upper surface of the circuit board and a lower electrode provided on a lower surface of the circuit board and the upper electrode electrically connected to the lower electrode, the upper electrodes and the lower electrodes of the pair of electrodes disposed adjacent to the opposite sides on the circuit board, the central electrode for heat-dissipation including an upper central electrode disposed between the upper electrodes of the pair of electrodes and a lower central electrode disposed between the lower electrodes of the pair of electrodes on the lower surface of the circuit board and the upper central electrode thermally connected to the lower central electrode.
Dependencies are inferred from the claim text.