A light emitting module comprising: a substrate; a light emitting diode chip on the substrate, the light emitting diode chip having a central axis in a vertical direction; and a lens coupled to the substrate, the lens covering the light emitting diode chip, wherein the lens comprises: a light incident surface to receive light from the light emitting diode chip; a light exit surface to output the light from the lens, a lower surface; and a flange connecting the light exit surface to the lower surface of the lens, wherein the light incident surface comprises: a concave light incident surface overlapping the light emitting diode chip; and a convex light incident surface extending from the concave light incident surface characterized in that the light emitting diode chip is configured to emit light through upper and side surfaces of the light emitting diode chip, the lower surface is adjoining the substrate, the convex light incident surface extends from the concave light incident surface to the lower surface of the lens, the convex light incident surface being configured so that light emitted through the side surface of the light emitting diode chip to the convex light incident surface is refracted in the upper direction of the lens and discharged through the light exit surface, and a side upper end of the light emitting diode chip is between a border between the concave light incident surface and the convex light incident surface and a border between the convex light incident surface and a lower surface of the lens in the vertical direction. a substrate; a light emitting diode chip on the substrate, the light emitting diode chip having a central axis in a vertical direction; and a lens coupled to the substrate, the lens covering the light emitting diode chip, wherein the lens comprises: a light incident surface to receive light from the light emitting diode chip; a light exit surface to output the light from the lens, a lower surface; and a flange connecting the light exit surface to the lower surface of the lens, a light incident surface to receive light from the light emitting diode chip; a light exit surface to output the light from the lens, a lower surface; and a flange connecting the light exit surface to the lower surface of the lens, wherein the light incident surface comprises: a concave light incident surface overlapping the light emitting diode chip; and a convex light incident surface extending from the concave light incident surface a concave light incident surface overlapping the light emitting diode chip; and a convex light incident surface extending from the concave light incident surface characterized in that the light emitting diode chip is configured to emit light through upper and side surfaces of the light emitting diode chip, the lower surface is adjoining the substrate, the convex light incident surface extends from the concave light incident surface to the lower surface of the lens, the convex light incident surface being configured so that light emitted through the side surface of the light emitting diode chip to the convex light incident surface is refracted in the upper direction of the lens and discharged through the light exit surface, and a side upper end of the light emitting diode chip is between a border between the concave light incident surface and the convex light incident surface and a border between the convex light incident surface and a lower surface of the lens in the vertical direction.