Patent ID: 8256926
Filing Date: 2012-09-04
Classification: F21K,F21V,F21Y

Abstract:
1. An illumination device, comprising: a lampshade comprising a shell and an optical lens fixed on the shell, wherein the shell defines a plurality of first through holes surrounding the optical lens; a heat dissipation module comprising a hollow tube with a cavity extending therethrough, a plurality of heat sinks extending outwardly and radially from an outer surface of the tube, a bottom plate coupled to and sealing a bottom of the hollow tube, the lampshade being coupled to and sealing a top of the hollow tube, the first through holes of the lampshade being located over and communicating with the cavity of the hollow tube, wherein a part of the heat dissipation module is received in the lampshade, wherein the bottom plate defines a plurality of second through holes corresponding to and aligned with the first through holes; a light module received in the cavity of the hollow tube of the heat dissipation module and arranged between and spaced from the bottom plate and toward the optical lens, comprising a substrate and a light source mounted on the substrate and facing toward the optical lens, the substrate defining a plurality of third through holes in alignment with and communicating with the first through holes and the second through holes; and a lamp cap coupled to the heat dissipation module and away from the optical lens.