| 摘要 |
A light emitting module according to an embodiment of the present invention includes a light emitting device and an optical lens which includes a bottom surface, an emission surface, and an incident part which is recessed in a light emission direction of the light emitting device on the center of the bottom surface. The incident part includes a first incident region corresponding to the upper side of the light emitting device and a second incident region which includes a rougher surface than the surface of the first incident region between the bottom surface and the first incident region. |
