LUMINAIRE

To provide a luminaire which is constituted so as to be able to emit two or more light beams having light distribution different from each other.SOLUTION: A luminaire 100A has a first light source LS1 and a first light guide member 10A1. The first light guide member 10A1 has: a first illumination member 110A1 having a first light guide layer 10A1, and a first light distribution control structure capable of directing a part of first light propagating in the first light guide layer at least to the front surface side; a second light source LS2; and a second light guide member 10A2 arranged on the front surface side of the first light guide member. The second light guide member has: a second illumination member 110A2 having a second light guide layer 10A2, and a second light distribution control structure capable of directing a part of second light propagating in the second light guide layer at least to the front surface side; and a low refractive index layer 20 arranged between the first light guide member and the second light guide member, and having a refractive index lower than any of the first light guide layer and the second light guide layer.SELECTED DRAWING: Figure 1A 【課題】互いに異なる配光分布を有する２以上の光を出射できるように構成された照明装置を提供する。【解決手段】照明装置１００Ａは、第１の光源ＬＳ１と、第１の導光部材１０Ａ１とを有し、第１の導光部材１０Ａ１は、第１導光層１０Ａ１と、第１導光層内を伝搬する第１の光の一部を少なくとも前面側に向けることができる第１配光制御構造とを有する、第１の照明部材１１０Ａ１と、第２の光源ＬＳ２と、第１の導光部材の前面側に配置された第２の導光部材１０Ａ２とを有し、第２の導光部材は、第２導光層１０Ａ２と、第２導光層内を伝搬する第２の光の一部を少なくとも前面側に向けることができる第２配光制御構造とを有する、第２の照明部材１１０Ａ２と、第１の導光部材と第２の導光部材との間に配置され、第１導光層および第２導光層のいずれよりも低い屈折率を有する低屈折率層２０とを有する。【選択図】図１Ａ