| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device for a building entrance having sufficient lighting function when needed, which can be installed and maintained at low cost, for lighting the building entrance. SOLUTION: The lighting device is installed at wall surfaces 16, 18 adjacent to the building entrance 10 and illuminates the circumference of the building entrance 10, which is composed of a light 20 installed on the wall surface 18, and a light accumulating plate 30 covering the wall surfaces 16, 18 near to the lighting 20. |
