ILLUMINATION DEVICE

PROBLEM TO BE SOLVED: To provide an illumination device capable of switching light distribution characteristics.SOLUTION: An illumination device includes: a plurality of light-emitting elements; a light guide plate which permits incidence of light from a light-emitting element via a light entrance part, transmission of the incident light to an inside, and emission of the light from an emission surface; and a lens member which receives the light emitted from the light guide plate. Regularly arranged at the light entrance part of the light guide plate are: a first region where the incident light has a first light distribution characteristic; and a second region where the incident light has a second light distribution characteristic which is wider than the first light distribution characteristic. Each of the light-emitting elements is arranged oppositely to each of the first region and the second region.SELECTED DRAWING: Figure 4 【課題】照明光の配光特性を切り替えることができる照明装置を提供する。【解決手段】照明装置は、複数の発光素子と、入光部を介して発光素子からの光を入射し、入射した光を内部に伝搬させ出射面から出射する導光板と、導光板から出射された光を受けてレンズ部材と、を備える。導光板の入光部には、入射した光が第１の配光特性を有する第１領域と、入射した光が前記第１の配光特性よりも広い第２の配光特性を有する第２領域とが規則正しく配置される。第１領域及び第２領域のそれぞれに対向して各発光素子が配置される。【選択図】図４