Patent ID: 8408751

Claim:
A light emitting device comprising: a light reflector comprising a first concave surface and a second concave surface immediately adjacent to the first concave surface, a convex ridge being disposed between the first and second concave surface and having an apex line extending along a direction; and a first light source being disposed at a side of the first concave surface and opposite to the convex ridge, wherein the first light source has a first emitting surface facing the convex ridge, and the apex line is disposed farther from a bottom surface of the light reflector than a bottom of the first emitting surface, but closer to the bottom surface of the light reflector than a top of the first emitting surface, wherein the first concave surface has an opening width and the first light emitting surface has a height, the opening width is about 2.8 times to about 5.8 times of the height.