Patent ID: 9546774
Date: 2017-01-17
CPC Classifications: F21V,G02B,G02F,H01L

Claim:
1. A luminous flux control member comprising: an incident surface onto which a light is incident; a reflective surface reflecting the incident light; and a light exit surface outputting the reflected light according to at least two orientation angles with respect to one direction perpendicular to a central axis connecting a center of the incident surface with a center of the reflective surface, wherein the reflective surface reflects the incident light in both an upwardly inclined direction and a downwardly inclined direction, wherein the light exit surface refracts the reflected light in both an upwardly inclined direction and a downwardly inclined direction; and wherein the light exit surface comprises a first subsurface, a second subsurface, and a third subsurface, wherein each subsurface has a planar surface, wherein a first obtuse angle is formed between the first subsurface and the second subsurface, and wherein a second obtuse angle is formed between the second subsurface and the third subsurface.