PROBLEM TO BE SOLVED: To provide an illumination device improved in air permeability and efficiency of light irradiation to a plant.SOLUTION: An illumination device 100 guides light emitted from a light source by a light guide member and emits the light from a light emission surface of the light guide member so that an irradiation body in an irradiation body region is irradiated with the light. The light guide member has a shape that is bent to form the irradiation body region, at least a part of the light emission surface is provided to be disposed above the irradiation body region, and the light guide member is provided with an opening on a bending surface.COPYRIGHT: (C)2014,JPO&INPIT【課題】通気性と植物への光照射の効率性とを高めた照明装置を提供する。【解決手段】光源が発する光を導光部材により導光し、導光部材の光出射面から光を出射することで、被照射体領域にある被照射体に光を照射する照明装置100であって、導光部材は、被照射体領域を形成するように屈曲した形状を有し、光出射面の少なくとも一部が、被照射体領域の上方に配されるように設けられており、導光部材は、屈曲する面に開口部を備えている。【選択図】図1
