| 摘要 |
PROBLEM TO BE SOLVED: To facilitate shape design of a light guide member, without causing light-emitting unevenness, while using the light guide member having a curved part.SOLUTION: A light guide member 22 includes a light-guiding body part extended with a curved part 22c. A plurality of steps 23 are arranged along an extension direction of the body part. Light entering one end 22e of the body part from a light source and reflected by the steps 23 is emitted from a light-emitting part 22g. A plurality of uneven parts 24 are formed at least at a part corresponding to the curved part 22c out of the light-emitting part 22g. |
