| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device to be installed to a handrail or a sound insulation wall of a road, tunnel, or the like, enabled to easily control the direction of light distribution, suitably corresponding to the situation of the road (width, curvature). SOLUTION: At least a pair of louver holding rails 2d are mounted to the end of an aperture 2 of an almost box-shaped device body 1, and the louver 2e is made detachable by fitting it to the rails 2d. By the above, the louver 2e suited to the situation of the road can be selected and mounted to the lighting device for the handrail. |
