OPTICAL DEVICE AND LIGHT SOURCE MODULE HAVING THE SAME

摘要

According to an embodiment of the present invention, a light source module comprises: a light source; and an optical device having a first surface which has an incident surface on which light of the light source is incident, and a second surface which discharges the light incident through the incident surface to the outside. The incident surface comprises: a first curved surface wherein a central portion through which an optical axis passes is recessed toward the second surface to have a concave curved surface; and a second curved surface extending from an edge portion of the first curved surface to have a convex curved surface connected to the first surface. Moreover, an inflection point is provided at a point wherein the first curved surface and the second curved surface meet each other.