Patent ID: 8419239

Claim:
A color LED lamp comprising: a lamp holder; a heat dissipating module fixed to the lamp holder, and a light source module comprising: a substrate fixed to the heat dissipating module and comprising a plurality of groups of light-emitting diodes arranged to form a plurality of concentric rings, wherein at least two groups emit two different colors of light rays; a hollow isolation member made of reflecting material and arranged facing the light-emitting diodes, wherein the space inside the isolation member is divided into a number of optical channels having coaxial walls that extend along a longitudinal axial direction of the isolation member wherein the spaces between the adjacent walls are optical channels distributed in concentric rings each corresponding to one of each concentric ring of light-emitting diodes and allows the light rays emitted from the group of light-emitting diodes to pass through; a light diffusing member attached to the surface of the isolation member away from the light-emitting diodes, and configured for diverging light rays from the optical channels, and mix the light rays from different groups of the light-emitting diodes; a hollow positioning sleeve attached to the isolation member; a hollow lampshade arranged around the positioning sleeve away from the isolation member, and defining a through opening; and an optical convergence element arranged between the position sleeve and the lampshade, partly extending through the opening, and configured for focusing the mixed light rays from the light diffusing member.