| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wiring board which is equipped with a blind hole where two or more light emitting elements are mounted, another blind hole serving as an end-face electrode, and a reflecting plate where the light emitting is mounted element capable of outputting a high optical power with higher conversion efficiency. <P>SOLUTION: The light emitting device is equipped with two or more light emitting diodes 30 and 30 mounted inside the blind hole 11 formed into a tapered shape and provided to the wiring board. The blind hole 11 formed into a tapered shape is provided to the wiring board, a heat sinking plate 12 formed of a thick metal conductor is provided extending from the bottom of the blind hole 11 to its rear side, and the reflecting film 13 of excellent reflection efficiency is provided to the inner surface and bottom of the blind hole 11. Furthermore, wiring patterns 14 and 14 used for electrically connecting the electrodes of the light emitting devices and the second blind hole 41 serving as an end-face electrode are provided around the top end of the blind hole 11, and the second blind hole 41 is cut in half along near its center line to serve as the end-face electrode 40. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
