| 摘要 |
PROBLEM TO BE SOLVED: To provide a light guide capable of achieving illumination in which light unevenness in each illumination region is reduced, and an illumination device using the light guide.SOLUTION: A light guide 100 comprises a base member 1 having light transmissivity, and it has a first illumination region 1c corresponding to a first incident part 1a and a second illumination region 1d corresponding to a second incident part 1b. A first slit region 1f is formed in a boundary region 1e between the first illumination region 1c and the second illumination region 1d, and one of the first incident part 1a and the second incident part 1b is formed on a side facing the first slit region 1f by sandwiching the first illumination region 1c or the second illumination region 1d. The first slit region 1f has a first slit 1h, the first slit 1h extends in a direction orthogonal to a travelling direction of light from a light source LS, a cross angle with the light from the light source LS changes continuously and width of the first slit 1h is formed to become wider toward a lower side or an upper side. |
