| 摘要 |
PROBLEM TO BE SOLVED: To suppress luminance unevenness of an emission surface and to improve appearance of luminance distribution of the emission surface.SOLUTION: A lighting fixture includes: a light source 10; an intake part 30 for taking in light emitted by the light source 10 as the light heading forward; a middle light guide part 40 extending laterally from the front of the intake part 30; an upper light guide part 50 arranged in front of the intake part 30; and a lower light guide part 60 arranged in front of the middle light guide part 40 when viewed from above. The upper light guide part 50 is provided continuing to a portion close to an optical axis Ax out of a rear surface of the middle light guide part from the upper part of the intake part 30, and guides a part of the light taken in by the intake part 30 to a second region 46b of an emission surface 46. The lower light guide part 60 extends laterally from the front of the lower part of the intake part 30, enters in below a side part of the middle light guide part 40, and it is provided continuing to the rear surface of the side part of the middle light guide part 40, and it guides a part of the light taken in by the intake part 30 to a third region 46c of the emission surface 46.SELECTED DRAWING: Figure 1 |
