| 摘要 |
PROBLEM TO BE SOLVED: To reduce light deviating from a road and to efficiently illuminate the road.SOLUTION: A tunnel luminaire 1 for illuminating a road 11 of a tunnel 10 has a substrate 42 mounting a plurality of LEDs 41. A mounting surface 84 of the substrate 42 is a diffuse reflection surface, and at the plurality of LEDs 41, main lenses 61A are provided which correspond to them respectively. The main lens 61A includes flip-up surfaces 79A, 79B for flipping up the light of the LEDs 41 in an optical axis F direction and substantially flat surfaces 80 which are reflection surfaces for reflecting the light to the opposite side from the side toward the road 11 in the width direction of the road 11 respectively by sandwiching the optical axis F. At least one part of the light reflected at the substantially flat surfaces 80 enters adjacent main lens 61A or is reflected by the mounting surface 84 of the substrate 42.SELECTED DRAWING: Figure 10 |
