Patent ID: 8425087

Claim:
A luminous flux control member comprising: an incident area on which light emitted from a light source is incident; and an emission area which opposes the incident area in an optical axis direction and which emits light having entered the incident area, toward an illumination-target surface side, wherein: the incident area comprises a projecting section which an annular shape about an optical axis when viewed from an optical axis direction and which has a cross section of a saw blade shape; the projecting section comprises: a first inclined surface on which part of the light emitted from the light source is incident and which refracts the incident light; and a second inclined surface which is formed in a further outward position in a radial direction than the first inclined surface and which totally reflects the light having entered the projection section from the first inclined surface toward the emission area; and the second inclined surface is formed in a surface shape so that an extreme end section of the second inclined surface which is most distant from the emission area is positioned more inward in the radial direction than a base end section which is closest to the emission area and the second inclined surface intersects once a virtual surface that is inclined with respect to the optical axis which connects between the extreme end section and the base end section.