Patent ID: 9568163
Date: 2017-02-14
CPC Classifications: F21S,F21V,F21Y,G02B

Claim:
1. A light flux controlling member that controls a distribution of light emitted from a light emitting element, comprising: an incident part that is formed at a back side of the light flux controlling member so as to intersect a central axis of the light flux controlling member and that receives light emitted from the light emitting element; a total reflection surface that is formed so as to surround the central axis and so as to have a diameter that gradually increases from the back side toward a front side of the light flux controlling member and that reflects a part of light incident on the incident part toward the front side; a first emission part that is formed at the front side so as to intersect the central axis and that emits light received directly from the incident part and light reflected at the total reflection surface toward the outside; and a second emission part being formed of at least one plate-like parts extending in a radial direction from the total reflection surface, the second emission part being configured to emit another part of light incident on the incident part toward the outside, wherein the total reflection surface is an arc-like curve that is convex toward the outside in a sectional view including the central axis, and the second emission part is connected to the total reflection surface.