| 摘要 |
PROBLEM TO BE SOLVED: To acquire a light irradiation surface of uniform illuminance by enlarging a light radiation region in an illumination device in which a surface light-emitting panel is a light source.SOLUTION: An illumination device 1 includes: a surface light-emitting panel 4; and a translucent material 5 arranged on a light-emitting surface side of the surface light-emitting panel 4. The surface light-emitting panel 4 has: a light-emitting region 4A which radiates light; and a non-light-emitting region 4B which does not radiate light. The translucent material 5 has a reflection part 51 which reflects light in a region facing the non-light-emitting region 4B. The light emitted from the surface light-emitting panel 4 and guided by the translucent material 5 can be reflected by the reflection part 51 and emitted in a front direction of the non-light-emitting region 4B. Therefore, the front direction of the non-light-emitting region 4B does not become a dark part, so that a light radiation region can be enlarged. Also, for example, when a plurality of illumination devices 1 are arranged in a matrix-shape, a light irradiation surface of uniform illuminance can be acquired. |
