| 摘要 |
PURPOSE: A light source with high power efficiency is provided to maintain desired brightness. A device for lightening a tunnel is provided to effectively configure to reflect the light source in a desired site. CONSTITUTION: A device for lightening a tunnel comprises a reflecting part(30) arranged in both sides of a tunnel inner wall; and an LED lighting device(20) which is arranged in an adjacent to the reflecting part and which irradiates a light to the reflecting part. The reflecting part reflects a light from an LED lighting device to a lower space of a tunnel. |
