| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that in conventional vehicular light guide member and vehicular lighting tool, a mold structure is made complex.SOLUTION: This invention is a light guide member 3 that guides light by utilizing total reflection. The light guide member includes an incidence surface 30 of one end surface, and a main emission surface 31 of one side surface. The main emission surface 31 is provided with a curvature surface 34. On the curvature surface 34, an auxiliary emission surface 35 emitting light made incident is provided perpendicularly to a tangent line T at any point P of a light guide direction Q. Consequently, a mold structure is made simple. |
