Patent ID: 7988337

Claim:
A light source assembly, comprising: a light guide unit, comprising: a hollow enclosure having a top portion, a bottom portion and a sidewall connected between the bottom portion and the top portion, a plurality of protrusions extending from an outer surface of the sidewall and coiling the sidewall, and a first light incident surface being positioned on the bottom portion; and a first lens unit enclosed in the enclosure, extending from the bottom portion towards the top portion and having a substantially inverted-frustoconical-shaped first light guide portion, a substantially inverted-conical-shaped groove being defined in a topmost portion of the first light guide portion, a first reflective surface being positioned on an inner wall of the groove, and a first refractive surface being positioned on an outer surface of the first light guide portion and intersecting the first reflective surface; and a first light emitting unit positioned adjacent to the first light incident surface.