| 摘要 |
<P>PROBLEM TO BE SOLVED: To extend the life of a light-emitting diode by effectively preventing heat accumulation, to increase application fields by reducing the area of a light-emitting device and improving a yield of production, and to combine the light-emitting device to a present lamp holder. <P>SOLUTION: A light-emitting device composed of light-emitting diodes (LEDs) and a manufacturing method thereof are provided. The light-emitting device includes a columnar metallic material, a printed circuit board, conductors, insulators, light-emitting diodes, wires, and an encapsulating material. The light-emitting device has through-holes and conductors wrapped with the insulators are disposed into the through-holes. One-ends of respective conductors are connected to the printed circuit board to form a composite heat dissipating structure. The light-emitting diodes are disposed on the columnar metallic material and connected to the conductors via the wires, and encapsulated by the encapsulating material. Further, the light-emitting diodes, the wires and the encapsulating material can be combined with a light-emitting unit. Moreover, red, blue and green light-emitting diodes can be combined, and the color of output light can be adjusted by controlling an input signal. <P>COPYRIGHT: (C)2009,JPO&INPIT |
