Patent ID: 7331691
Filing Date: 2008-02-19
Classification: F21K,F21V,F21Y,H01L

Abstract:
1. An illumination system, comprising: a first array of light emitting diodes, wherein said first array of light emitting diodes emits light and wherein said first array of light emitting diodes reflects incident light; a first heat pipe, said first array of light emitting diodes being bonded to said first heat pipe, wherein said first heat pipe dissipates heat from said first array of light emitting diodes; a second array of light emitting diodes, wherein said second array of light emitting diodes emits light and wherein said second array of light emitting diodes reflects incident light; a second heat pipe, said second array of light emitting diodes being bonded to said second heat pipe, wherein said second heat pipe dissipates heat from said second array of light emitting diodes; a third array of light emitting diodes, wherein said third array of light emitting diodes emits light and wherein said third array of light emitting diodes reflects incident light; a third heat pipe, said third array of light emitting diodes being bonded to said third heat pipe, wherein third first heat pipe dissipates heat from said third array of light emitting diodes; a fourth array of light emitting diodes, wherein said fourth array of light emitting diodes emits light and wherein said fourth array of light emitting diodes reflects incident light; a fourth heat pipe, said fourth array of light emitting diodes being bonded to said fourth heat pipe, wherein said fourth heat pipe dissipates heat from said fourth array of light emitting diodes; a fifth array of light emitting diodes, wherein said fifth array of light emitting diodes emits light and wherein said fifth array of light emitting diodes reflects incident light; a fifth heat pipe, said fifth array of light emitting diodes being bonded to said fifth heat pipe, wherein said fifth heat pipe dissipates heat from said fifth array of light emitting diodes; wherein said first heat pipe, said second heat pipe, said third heat pipe and said fourth heat pipe extend at right angles to the adjacent heat pipe, further wherein said fifth heat pipe is at right angles to first heat pipe, said second heat pipe, said third heat pipe and said fourth heat pipe, said heat pipes forming a cubical light recycling cavity; and a light recycling means in said cubical light recycling cavity formed by said first array of light emitting diodes on said first heat pipe; said second array of light emitting diodes on said second heat pipe; said third array of light emitting diodes on said third heat pipe; said fourth array of light emitting diodes on said fourth heat pipe; and said fifth array of light emitting diodes on said fifth heat pipe; wherein said light recycling means reflects and recycles a portion of said light emitted by said first array of light emitting diodes; reflects and recycles a portion of said light emitted by said second array of light emitting diodes; reflects and recycles a portion of said light emitted by said third array of light emitting diodes; reflects and recycles a portion of said light emitted by said fourth array of light emitting diodes; and reflects and recycles a portion of said light emitted by said fifth array of light emitting diodes.