LIGHTING MODULE

摘要

PROBLEM TO BE SOLVED: To provide a lighting module capable of avoiding a periphery of a light emission surface becoming dark as if edged.SOLUTION: A lighting module 1 includes: a light guide plate 20; a plurality of LED light sources 30; a light incident surface 55 in which light emitted from a first main surface 23 of the light guide plate 20 enters; and a diffusion plate 50 having a light emission surface 56 from which the light entered from the light incident surface 55 emits. The diffusion plate 50 has a protrusion part 51 which protrudes to the light guide plate 20 side, which is provided at a position facing a peripheral edge part 26 of an end surface 21 side of the first main surface 23 of the light guide plate 20 on which the LED light sources 30 are arrayed, and which has a light incident surface 52 in which the light emitting from the peripheral edge part 26 enters. A ratio between a light amount of the light entering the light incident surface 52 and a total amount of the light amount of the light entering the diffusion plate 50 is within ±60% with respect to a ratio between an area of the light incident surface 52 and a total area of an area of the light incident surface 55 of the diffusion plate 50 and the area of the light incident surface 52.SELECTED DRAWING: Figure 2