Incidence region 162 of light flux controlling member 160 includes first lens region 10 and second lens region 50 which have a fan shape in a plan view thereof. First lens region 10 includes a plurality of first projections 172. In first inclining surface 174 of first projection 172, angle θ11 on a first cross section and angle θ21 on a second cross section in a direction orthogonal to the first cross section are both larger than 0°. In second inclining surface 176, angle θ12 on the second cross section is larger than angle θ22 on the second cross section.
