PROBLEM TO BE SOLVED: To provide a plant lighting apparatus, by which each plant in the apparatus is able to get a uniform illumination based on proper light source distribution and configuration, so as to enhance the quality of the plants at harvest.SOLUTION: The plant lighting apparatus includes a main body 105, a planting region 130, and an emitting region 140. The main body includes a first plane 110 and a second plane 120 which are opposite to each other. The planting region is located on the first plane. The emitting region is a polygon located on the second plane. The plant lighting apparatus further includes a plurality of sets of main light sources 152, 154, 156, 158. The sets of the main light sources are respectively located on a plurality of corners of the emitting region, such that the luminance intensity of the planting region obtained from the plurality of sets of main light sources is within a predefined range of luminance intensities.SELECTED DRAWING: Figure 1【課題】収穫時の植物の品質を高めるため、適切な光源の分布及び形態によって装置内の各植物が均一な照明を得られる、植物照明装置を提供する。【解決手段】本体１０５、植え付け領域１３０、及び発光領域１４０を備え、該本体は互いに対抗する第一面１１０と第二面１２０を有する。植え付け領域は該第一面に位置し、発光領域は多角形であり、該第二面に位置する。更に、それぞれが発光領域の複数の角に配置される主光源の複数の組１５２、１５４、１５６、１５８を備え、主光源の複数の組から得られる植え付け領域の照度が所定の照度範囲内に入るように構成されている。【選択図】図１
