| 摘要 |
<P>PROBLEM TO BE SOLVED: To make the seeds match to the needs in the field of road signs by causing a luminescent diode for emitting at a low cost and high efficiency. <P>SOLUTION: A light fitting is provided with the luminescent diode, whose mounting part for mounting a luminescent element is disposed heat-transferably on a heat-dissipating means, having a heat-dissipating surface, on either end of a tubular material having fine unevenness on the inner surface thereof and the light transmission properties. The luminescent diode is used as a light source for a sign, and caused to emit by a larger current than a luminescent element melt loss current of the luminescent element alone. <P>COPYRIGHT: (C)2004,JPO |
