| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device for a sign board, bill board or the like installed at a road or the like with a simple supporting structure for installation, which can uniformly illuminate the object to be lighted, and enabled to install without obstructing the traffic at the exchange of lamp or maintenance. SOLUTION: A light source part 3 including a lamp is arranged at the upper part of a sign board 2 mounted on a supporting post 1, and a reflection plate 4 is mounted so as to stand opposite to the light source part 3 and the sign board 2. The light form the light source 3 is reflected by the reflection plate 4 and illuminates the sign board 2. |
