Patent ID: 8534879

Claim:
A lens comprising: a base, the base comprising a bottom face facing a light emitting side of a light source, and a top face, the bottom face has a light incident face adapted to diffuse light into the lens; a first member and a second member, wherein the first and second members extend from the top face and away from the bottom face of the base, wherein the first member comprises a first light emergent face, the first light emergent face has a convex surface curved outward from the top face, and light emitted from the first light emergent face illuminates areas far away from the lens, and wherein the second member comprises a second light emergent face, the second light emergent face has a flat surface finish, the second light emergent face is at a first angle from the top face, and light emitted from the second light emergent face illuminates first areas near the lens; and a third light emergent face formed between the first light emergent face and the second light emergent face, wherein the third light emergent face has a rough surface finish, the third light emergent face uniformly directs light to illuminate second areas near the lens.