| 摘要 |
PURPOSE: A light emitting module and a lens are provided to widely disperse light by generating a first refraction on a recess part and a second refraction on an upper surface. CONSTITUTION: A lower surface(31) has a recess part(31a). The recess part includes a swollen surface perpendicular to a central axis(C). An upper surface(35) emits the light from the recess part. The upper surface includes a concave plane(35a). The concave plane is located in the central axis. |
