PROBLEM TO BE SOLVED: To provide a panel for plant cultivation 4 which is capable of suppressing a risk that a light source is exposed to water in feeding water to plants and a risk that heat generated from the light source causes adverse effect on an adjacent plant body or culture medium, and uniformly irradiating lower parts of plants with light, and securing a space around plants in performing hydroponics.SOLUTION: The panel for plant cultivation comprises: a light guide 2 which includes a light introducing surface 2a for introducing light at an end portion and emits introduced light from a light emitting surface 2b while guiding the light inside itself and a light source 1 provided along the light introducing surface 2a. The light guide 2 includes a reflection sheet 3 in a region facing a region of the light emitting surface 2b from which the introduced light is emitted, and through holes penetrating between the light emitting surface 2b and a surface 2c facing the light emitting surface 2b are formed in the light guide 2.COPYRIGHT: (C)2014,JPO&INPIT【課題】植物への給水などの際に、光源が水にさらされる恐れおよび光源の発熱により、近接する植物体や培地に悪影響を与える恐れを抑制できるとともに、植物下部に均一に光が照射でき、水耕栽培をする際には、植物周辺のスペースを確保することができる植物栽培用パネル4を提供する。【解決手段】光を導入させる光導入面2aを端部に備え、かつ、導入された光を内部で導光させながら光出射面2bから出射させる導光体2と、光導入面2aに沿って設けられた光源1と、を備え、導光体2は、光出射面2b中の上記導入された光が出射される領域と対向する領域には、反射シート3を備えており、導光体2に、光出射面2bと光出射面2bと対向する面2cとの間を貫通する貫通穴が形成されている。【選択図】図1
