| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase light directivity. <P>SOLUTION: For a light emitting diode, a light emitting chip 1 is molded by a transparent lens 2, a Fresnel lens 3 is formed on the cap head outer surface of the transparent lens 2, and many recessed stripes 4 in a vertical direction are formed on a side outer surface. <P>COPYRIGHT: (C)2003,JPO |
