| 摘要 |
PURPOSE: To reflect light efficiently by fitting a plurality of reflecting surfaces reflecting light from the outside in a region towards a center from the periphery of a sign body and setting the angles of inclination of each reflecting surface so that an inclination to the ground surface of the reflecting surface on the center side is made smaller than the reflecting surface on the peripheral side of the sign body. CONSTITUTION: Reflecting surfaces 4A-4C reflecting light from the outside are mounted in a region towards a center from the periphery of a sign body 1 in the sign body 1. The angles of inclination of each reflecting surface 4A-4C are set so that the angle of inclination of the reflecting surface C on the center side is made smaller than the reflecting surface 4A on the peripheral side of the sign body 1 in the angles of inclination to the ground surface 6 of each reflecting surface 4A-4C at that time. Consequently, reflected light from each reflecting surface 4A-4C is reflected gradually to the outside through approximately the same path as incident light 3. Accordingly, light can be reflected efficiently. |
