High power LED electro-optic assembly
The present invention provides a high power LED electro-optic assembly ( 40 ) including conductive heat sink ( 18 ) and an LED ( 14 ) mounted at one end of the heat sink. The LED ( 14 ) is in electrical engagement with the heat sink ( 18 ). The assembly ( 40 ) also includes a reflector ( 2 ) mounted at the other end of the heat sink. An insulating bond material ( 19 ) is provided between the reflector and the sink. The assembly ( 40 ) further includes a conductive bonding pin ( 15 ) extending through the reflector ( 12 ) and is in conductive engagement therewith and an electrical engagement ( 16 ) which electrically engages the pin ( 15 ) to the LED ( 14 ). Finally, an electric sleeve assembly ( 30 ) where the sleeve ( 32 ) is coated with an electrical insulating coating ( 34 ) is applied to the LED electro-optic assembly.
1. A LED electro-optic assembly comprising:
at least one LED;
a conductive heat sink having mounted at one end thereof, said LED in electrical engagement therewith;
a conductive reflector mounted to said one end of said heat sink and surrounding said LED;
an insulative member electrically isolating said conductive reflector from said heat sink;
a conductive bonding pin extending through said conductive reflector and in conductive engagement therewith; and
an electrical engagement engaging said bonding pin with said LED;
wherein said heat sink and said reflector form an electrically conductive location for supplying power to said LED.
2. The assembly of claim 1 wherein said heat sink includes a planar surface at said one end and wherein said LED is mounted to said surface.
3. The assembly of claim 2 wherein said reflector is an elliptical reflector having a central opening therethrough and wherein said LED is mounted in said central opening.
4. The assembly of claim 3 wherein said insulative member includes a bonding agent for securing said conductive reflector to said heat sink.
5. The assembly of claim 1 wherein said heat sink is a heat pipe.
6. The assembly of claim 1 wherein said bonding pin is gold plated.
7. The assembly of claim 1 wherein said wire bond is a wire jumper interconnecting said bonding pin to said LED.
8. The assembly of claim 1 further including:
an optic lens member positioned adjacent to said optical reflector, said optic lens member being spaced from said LED for focusing light rays emanating from said LED.
9. The assembly of claim 7 wherein said optic lens member is supported at least partially within said optic reflector.
10. The assembly of claim 7 wherein said optic lens member is a ball optic for production of enhanced light power density.
11. The assembly of claim 7 wherein said optic lens member is a half ball optic for production of collimate light.
12. The assembly of claim 7 further including a conductive retaining sleeve supporting said heat sink, said reflector and said optic lens member.
13. The assembly of claim 12 wherein said conductive sleeve is placed in electrical continuity with said conductive reflector.
14. The assembly of claim 13 wherein said conductive sleeve is insulatively separated from said heat pipe.
15. The assembly of claim 13 wherein said conductive sleeve is insulatively separated from said heat pipe by an insulative adhesive which secures said sleeve to said heat pipe.
16. The assembly of claim 13 wherein said conductive sleeve is insulatively coated.
17. The assembly of claim 15 wherein said sleeve includes at least one passage therethrough adjacent said conductive reflector.
18. The assembly of claim 17 wherein said passage is filled with a conductive adhesive to establish conductive engagement between said sleeve and said reflector.
19. The assembly of claim 17 which said passage is electrically engaged with said sleeve and said reflector.
20. A LED electro-optic electrical sleeve assembly comprising:
a generally cylindrical sleeve coated with an electrical insulator, having an upper portion and a lower portion, said upper and lower portion separated by an insulative member;
at least one LED and a conductive reflector having mounted at said upper portion, wherein said reflector surrounds said LED;
a conductive heat sink having mounted at said lower portion, said LED in electrical engagement therewith;
a conductive bonding pin extending through said conductive reflector and in conductive engagement therewith; and
an electrical engagement engaging said bonding pin to said LED;
wherein said heat sink and said reflector form an electrically conductive location for supplying power to said LED.
21. The assembly of claim 20 further comprising a pair of slots located at an upper portion.
22. The assembly of claim 21 wherein said slots are coated with a conductive adhesive to bond said sleeve to the reflector.
23. The assembly of claim 21 wherein said reflector is bonded to said sleeve via an aluminum wire.
24. The assembly of claim 20 wherein said reflector is bonded to the heat sink by said insulative member.
25. The assembly of claim 20 further comprising an optic lens member positioned adjacent to said reflector, said optic lens member being spaced and positioned from said LED for focusing light rays emanating from said LED.
26. The assembly of claim 25 wherein said upper portion retains said optic lens member.
27. The assembly of claim 25 wherein said optic lens member is supported at least partially within the reflector.
28. The assembly of claim 25 wherein said optic lens member is positioned completely outside said reflector.