A light flux controlling member (300, 400, 500) configured to control a distribution of light emitted from a light emitting element, the light flux controlling member (300, 400, 500) comprising: an incidence surface constituting a surface of a recess formed so as to intersect a central axis of the light flux controlling member (300, 400, 500), the incidence surface being configured such that light emitted from the light emitting element is incident on the incidence surface; an emission surface formed so as to intersect the central axis, the emission surface being configured to output light entered from the incidence surface toward outside; a rear surface extending radially from the opening edge of the recess; and a plurality of linear protrusions each having a cross-section that is substantially triangle-shaped, the linear protrusions being disposed rotationally symmetric arround the central axis so as to surround the central axis, the linear protrusions each including a first reflection surface, a second reflection surface and a ridge line that is an intersection line of the first reflection surface and the second reflection surface, wherein the light flux controlling member (300, 400, 500) further comprises a ring formed groove formed in the rear surface so as to surround the opening of the recess, the ring formed groove including an inner surface and an outer inclining surface, a cross-sectional shape of the ring formed groove in a cross-section including the central axis is substantially V-shaped formed by the inner surface and the outer inclining surface, the plurality of linear protrusions are formed on the outer inclining surface such that a virtual line including the ridge line intersects the central axis. an incidence surface constituting a surface of a recess formed so as to intersect a central axis of the light flux controlling member (300, 400, 500), the incidence surface being configured such that light emitted from the light emitting element is incident on the incidence surface; an emission surface formed so as to intersect the central axis, the emission surface being configured to output light entered from the incidence surface toward outside; a rear surface extending radially from the opening edge of the recess; and a plurality of linear protrusions each having a cross-section that is substantially triangle-shaped, the linear protrusions being disposed rotationally symmetric arround the central axis so as to surround the central axis, the linear protrusions each including a first reflection surface, a second reflection surface and a ridge line that is an intersection line of the first reflection surface and the second reflection surface, wherein the light flux controlling member (300, 400, 500) further comprises a ring formed groove formed in the rear surface so as to surround the opening of the recess, the ring formed groove including an inner surface and an outer inclining surface, a cross-sectional shape of the ring formed groove in a cross-section including the central axis is substantially V-shaped formed by the inner surface and the outer inclining surface, the plurality of linear protrusions are formed on the outer inclining surface such that a virtual line including the ridge line intersects the central axis.