Patent ID: 6045240
Filing Date: 2000-04-04
Classification: B60Q,B61L,F21S,F21V,F21W,F21Y,G08G,H01L,H05K,Y10S

Abstract:
An electrically driven L.E.D. lamp assembly comprising;an electrically insulating circuit board having opposed first and second surfaces,light emitting diodes mounted on said first surface,each of said light emitting diodes having positive and negative leads,a thermally conductive plating on said second surface,said conductive plating being thermally connected to said leads to conduct heat from said leads to said conductive plating,a heat sink overlying said conductive plating,an adhesive layer of thermally conductive adhesive disposed between said conductive plating and said heat sink to secure said conductive plating and said board to said heat sink,said assembly characterized by an electrically non-conductive spacer for preventing contact between said conductive plating and said heat sink to prevent electrical shorting between said conductive plating and said heat sink while maximizing heat transfer from said conductive plating to said heat sink.