| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low-cost semiconductor light emitting device suitable for a light source for growing plants which can be combined with another light emitting device at a desired ratio of not only wavelength but also emission intensity. <P>SOLUTION: The semiconductor light emitting device has such a structure that a plurality of light emitting diodes having a different central wavelength and light output, for example, three kinds of LEDs including a blue-color LED, a red-color LED, and a near-infrared LED, are incorporated in one and the same chip. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
