| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface light-emitting module capable of making a non-light-emitting region more inconspicuous.SOLUTION: A light-emitting surface 10S of a surface light source 10 includes a light-emitting region RA and a non-light-emitting region RB. When a part of the emission surface 24 of a prism sheet 20, corresponding to the non-light-emitting region RB, is the outside part 29, a light beam radiated from the light-emitting region RA and having the maximum luminance in the distribution of light, traveling in the normal direction of the light-emitting surface 10S or the direction approaching the outside part 29, is refracted by a protrusion 22 when impinging on the prism sheet 20, and the refracted light beam travels toward the outside part 29 furthermore, compared before impinging on the prism sheet 20.SELECTED DRAWING: Figure 7 |
