OPTICAL LENS, LIGHTING MODULE, AND LIGHT UNIT COMPRISING SAME

摘要

Disclosed in an embodiment is a lighting module comprising: a circuit board in which the length of a first axial direction is longer than the length of a second axial direction; a plurality of optical lenses arranged in the first axial direction on the circuit board; and at least one light emitting element disposed between the circuit board and each of the plurality of optical lenses. The optical lens comprises: an incident surface on the circuit board; a first light emitting surface for emitting light incident to the incident surface; a second light emitting surface for emitting the incident light in a lateral direction; and a lateral surface protrusion part protruding outwardly from a first area of the second light emitting surface, wherein the lateral surface protrusion part of each optical lens protrudes farther outward than circuit board area.