LED lens and LED package using the same

摘要

A light emitting diode (LED) lens comprises a light incident surface on a bottom surface of the LED lens facing a light source. A light exit surface, having a size greater than the bottom surface, is defined by a top surface of the LED lens. A planar portion, emitting light incident through the light incident surface, is in a central region of the light exit surface. At least one protrusion portion, protruding to be stepped with respect to the planar portion, is in a region of the light exit surface except for the central region. A reflective surface, defined by lateral surfaces of the LED lens between the top surface of the LED lens and the bottom surface thereof, guides the light incident through the light incident surface, and contacts a lower portion of the light exit surface corresponding to a boundary between the protrusion and the planar portions.

主权项

1. A light emitting diode (LED) lens, comprising:
a light incident surface on a bottom surface of the LED lens facing a light source; a light exit surface, having a size greater than that of the bottom surface, defined by a top surface of the LED lens; a planar portion, emitting light incident through the light incident surface, formed in a central region of the light exit surface; at least one protrusion portion, protruding so as to be stepped with respect to the planar portion, formed in at least one region of the light exit surface except for the central region; and a reflective surface, defined by lateral surfaces of the LED lens between the top surface of the LED lens and the bottom surface thereof, guiding the light incident through the light incident surface, and contacts a lower portion of the light exit surface corresponding to a boundary between the protrusion portion and the planar portion.