Patent ID: 8201969

Claim:
An LED illuminator comprising: an illuminator base having a surface; four LED lamp units radially disposed on the surface of the illuminator base, each of the four LED lamp units comprising a heat dissipation structure, the four LED lamp units being inclinedly mounted on the surface of the illuminator base with LEDs of each of the four LED lamp units being oriented downwardly and outwardly; wherein the heat dissipation structures of the four LED lamp units are radially disposed on the surface of the illuminator base; wherein each heat dissipation structure comprises a base plate and a plurality of fins, the base plate defines an internal side surface and an external side surface opposing the internal side surface, and the fins are formed on the internal side surface; wherein a bottom plate and a top plate obliquely protrude from two opposite ends of the internal side surface; wherein each of the four LED lamp units further comprises a securing part having an upper securing section engaged with the top plate and a lower securing section engaged with the bottom plate; and wherein two U-shaped fixing element mating with the securing parts secure the each of the four LED lamp units on the surface of the illuminator base.