To provide lighting devices that can grow satisfactorily without using a reflector plants even near the end of a lighting device in a cultivation device as same as plants in other places.SOLUTION: A lighting device has: a light emitting portion 12a having a light source chip row with a plurality of light source chips linearly arranged on a substrate； an end portion of the range of 100 mm from the end of the light emitting portion of the lighting device； and a center portion which is the light emitting portion other than it, the relationship between the value of a photon flux density A immediately below 50 mm from a light source chip disposed at the end portion and the value of a photon flux density B immediately below 50 mm from a light source chip disposed at the center portion being within a predetermined range.SELECTED DRAWING: Figure 1【課題】反射装置を用いることなく、栽培装置内の照明装置の端部近くの植物も他の場所の植物と同様に十分に発育し、出荷可能とする照明装置を提供する。【解決手段】基板上に複数の光源チップを直線状に配置された光源チップ列を有する発光部１２ａを有し、照明装置の発光部の端から１００ｍｍの範囲を端部、それ以外の発光部の部分を中央部とし、端部に配した光源チップから５０ｍｍ直下における光量子束密度Ａの値と中央部に配した光源チップから５０ｍｍ直下における光量子束密度Ｂの値の関係を所定範囲内とする。【選択図】図１
