| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: a conventional vehicular light guide member and a conventional vehicular lamp fitting can be difficult to provide uniform brightness.SOLUTION: A light guide member 5 of the present invention includes a plane 50 of incidence on one end surface, an emission surface 51 on one side surface, and a reflection plane 52 on the other side surface. A cross-section in a direction crossing a light guide direction O of the emission surface 51 assumes such a parabolic shape that reflected light L3 totally reflected from the emission surface 51 is reflected to the side of the reflection plane 52. Consequently, the light guide member of the present invention enables uniform brightness to be obtained on the emission surface 51 of the light guide member 5. |
