| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device excellent in load bearing, which is favorable for the installation in a building of an outer wall structure in which wall surfaces in opposite sides of a window protrude forward.SOLUTION: A lighting device is constituted by a pair of lateral supporters 5, 5 which are installed to face each other on wall surfaces 13a laterally facing each other with a window part interposed therebetween, and a reflection board 3 the entire width of opposite ends of which is supported by each supporter 5 to be positioned and fixed in a window part position. Each supporter 5 includes a back plate part 50 fixed to the opposing wall surfaces 13a, and upper and lower support plate parts 61, 51 protruding from a front surface of the back plate part 50 and sandwiching the ends of the reflection board 3. |
