LUMINAIRE

To provide a luminaire capable of acquiring substantially symmetrical light distribution in which an optical axis and width are different by each of a plurality of light sources by one cup lens.SOLUTION: A luminaire includes a cup lens and a plurality of light sources. The cup lens has a substantial...

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Bibliographische Detailangaben
Hauptverfasser: KOBAYASHI REN, TAKAYAMA RYOHEI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a luminaire capable of acquiring substantially symmetrical light distribution in which an optical axis and width are different by each of a plurality of light sources by one cup lens.SOLUTION: A luminaire includes a cup lens and a plurality of light sources. The cup lens has a substantially truncated-cone-shaped body part. The plurality of light sources is arranged on a bottom surface side of the body part where an area is smaller. The cup lens includes: a convex lens part provided substantially at the center of the bottom surface of a concave part provided on the bottom surface side of the body part where the area is smaller; and a total reflection part provided on an outer peripheral side surface of the body part. The plurality of light sources uses the convex lens part and a region partitioned by the light distribution of the total reflection part.SELECTED DRAWING: Figure 2 【課題】一つのカップレンズにより複数の光源ごとに光軸や幅の異なるほぼ対称的な配光を得ることのできる照明装置を提供すること。【解決手段】実施形態の照明装置は、カップレンズと、複数の光源とを備える。前記カップレンズは、略円錐台の形状の本体部を有する。前記複数の光源は、前記本体部の面積が小さい底面側に配置される。前記カップレンズは、前記本体部の面積が小さい底面側に設けられた凹部の底面の略中央に設けられる凸レンズ部と、前記本体部の外周側面に設けられる全反射部とを有する。前記複数の光源は、前記凸レンズ部および前記全反射部の配光ごとに区分された領域を使用する。【選択図】図2