| 摘要 |
PROBLEM TO BE SOLVED: To provide a light guide which suppresses variance in intensity and emission angle of light emitted therefrom, which occurs dependently on a light reception position of a light receiving surface, and allows constitution of a small-sized device, and to provide a light source unit.SOLUTION: A light guide 20 comprising a light-transmissive tabular body includes a light receiving part 21 having a plane light receiving surface extending in one direction and a light output part which is formed at one end in the one direction of the light receiving part and bends and extends in another direction different from the one direction and has a plane light output surface 27 at an end surface thereof. The light receiving part has a first light reflection surface 23 which faces the light receiving surface and is formed so that the distance from the light receiving surface is increased toward the light output part, and reflects light received by the light receiving surface, toward the light output part, and the light output part has a second light reflection surface 28 which reflects the light reflected by the first light reflection surface, toward the light output surface. |
