| 摘要 |
PROBLEM TO BE SOLVED: To allow a long region to emit light more evenly than a conventional one.SOLUTION: A vehicular lighting fixture 1 includes: a light source 4; a light guide part 51 having an incident surface 511, a first reflection surface 512, a second reflection surface 513 and an emission surface 514; a housing 2 having a diffuse reflection surface; a diffusion part 52 for diffusing the light from the diffuse reflection surface; and an outer lens 3. In the light guide part 51, the plurality of second reflection surfaces 513 are arranged side by side in the longitudinal direction X on the surface opposite from the emission surface 514. The diffuse reflection surface of the housing 2 has a first diffuse reflection surface 21 for reflecting the light from the emission surface 514, and a second diffuse reflection surface 22 for reflecting the light from the first diffuse reflection surface toward the diffusion part 52. At least one of the first diffuse reflection surface 21 and the second diffuse reflection surface 22 diffuses and reflects the light. The diffusion part 52 is arranged between the second diffuse reflection surface 22 and the outer lens 3 so as to cover the front of the second diffuse reflection surface 22, and it is formed in a long manner along the longitudinal direction X.SELECTED DRAWING: Figure 6 |
