| 摘要 |
PROBLEM TO BE SOLVED: To emit a plurality of color in single globe by providing a first light source group, a second light source group electrically separated from the first light source group, and single globe for covering both the light source groups, and providing a reflecting mirror in each light source group. SOLUTION: A light emitting diode unit 3 formed of two layers, for example, is laminated on a signal light body 1. The light emitting diode unit 3 has a light emitting diode 3b, and a side thereof is covered with a clear (colorless) globe 2a. A cap 4 is fitted on the upper end of the globe 2a, and the cap 4 is fixed by a screw 5. The screw 5 is threaded to a screw groove provided in the signal light body 1 so as to fix the light emitting diode unit 3 formed of the two layers. In order to reflect the light emitted from each light source to the periphery, a reflecting mirror, desirably a conical reflecting mirror, is provided. |
