Patent ID: 7686474

Claim:
A light emitting device, comprising: a substrate; a plurality of light sources, disposed on the substrate; and a lens array, disposed on the substrate, comprising: a plurality of first lenses covering the light sources in a one-for-one manner and directly contacting the light sources in the one-for-one manner, wherein the light sources are embedded in the first lenses in the one-for-one manner; and a plurality of second lenses, surrounding the first lenses and the light sources and disposed beside the first lenses and the light sources, wherein each of the first lenses and the second lenses has a light exit surface facing away from the substrate, and the light exit surface is a recessed surface or a protruding surface, wherein the light sources are arranged in an N-by-N array, the lens array is an M-by-M array, both N and M are positive integers, N is smaller than M, and N is greater than 1.