LUMINOUS FLUX CONTROL MEMBER AND ILLUMINATION DEVICE

摘要

A luminous flux control member (130) has a substantially circular shape in top view, and has a reflecting surface (132) for reflecting light emitted from a light-emitting element (120), and a transmitting part (134) for transmitting light emitted from the light-emitting element (120). The reflecting surface (132) is a concave surface, the center section (136) of which is nearer the light-emitting element (120) than the outer periphery section (138). The transmitting part (134) is formed in at least the center half region of the luminous flux control member (130) as viewed in plan view.