| 摘要 |
PROBLEM TO BE SOLVED: To provide a light flux control member which uniformly and efficiently radiates light emitted from a light emitting element to a square radiated area.SOLUTION: An incident region 141 of a light flux control member 130 according to the invention includes: a fresnel lens part 160; an outermost lens part 170; and a reflector holding part 180. The fresnel lens part 160 includes first projections 161, each of which includes a first incidence surface 162, a first reflection surface 163; and a first edge line 165. The outermost lens part 170 includes second projections 171, each of which includes a second incident surface 172 and a second reflection surface 173. The reflector holding part 180 holds a reflector 190. |
