Light flux controlling member, light-emitting device and lighting device

摘要

A light flux controlling member capable of uniformly illuminating an illumination-target surface arranged approximately in parallel with an optical axis of a light-emitting device and reducing the weight of an lighting device is provided. An light flux controlling member is arranged on an edge side of an illumination-target member together with a light-emitting device (10) to emit light from the light-emitting device (10) from an output surface (14) after causing the light to enter from an input surface (15). The input surface (14) includes a first input surface (18) arranged to be positioned on an optical axis L1 of the light-emitting device (10) approximately parallel to the illumination-target surface and a second input surface (20) positioned to enclose the first input surface (18). The input surface (14) and the output surface (15) are formed in such a way that the light emitted from the output surface (15) via the first input surface (18) with the maximum angle from the optical axis L1 has a larger angle from the optical axis L1 than the light emitted from the output surface (15) via the second input surface (20) with the maximum angle from the optical axis L1.