ASPHERIC LED LENS AND A LIGHT EMITTING DEVICE INCLUDING THE SAME

摘要

An aspheric LED lens according to one aspect of the present invention comprises a light emitting plane which is radially symmetric about the central axis and has a recess around the central axis; and a light receiving plane which is formed of a conical plane with a vertex on the central axis, wherein a plurality of protrusions are formed on a part of the light emitting plane. Accordingly, incorporating a light emitting device with the aspheric LED lens into a display device means that the brightness of a panel can be uniform and at the same time the color aberration can be reduced substantially.