| 摘要 |
PROBLEM TO BE SOLVED: To improve a visual environment in an area irradiated by a sodium lamp, in a tunnel. SOLUTION: In the area irradiated by the sodium lamp, in the tunnel, an interior finish plate or a light reflective surface of a coated wall surface is colored a pale peach or a bright green, and therefore color rendering is shifted to white. In this manner, the facilities irradiated by the sodium lamp is improved with respect to its relative luminous efficiency. |
