LED lamp

• US 20050104515A1
• Filed: 09/29/2004
• Published: 05/19/2005
• Est. Priority Date: 06/15/2000
• Status: Active Grant

• Current Assignee: Lednium Technology Pty Limited
• Original Assignee: Lednium Technology Pty Limited
• Inventors: Montagnat, John Albert, Jeganathan, Balu
• Granted Patent: US 7,352,127 B2
• Time in Patent Office: Days
• US Class Current: 313/512
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/48247 connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 33/50 Wavelength conversion elements
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

In accordance with the present invention, there is provided a lamp including a plurality of semi-conductor light emitting junctions with a common layer of fluorescent material arranged thereover, wherein the junctions are provided in a three-dimensional array.

Claims

1. A lamp including a plurality of recesses arranged in at least one curved conductor so as to adopt a three-dimensional array, wherein light emitting junctions are mounted in the recesses.

5. A lamp as claimed in claim 1, wherein the lamp includes a globe portion, with the junctions and the at least one curved conductor being embedded within the globe portion so that the lamp is formed as a unitary structure.

6. A lamp as claimed in claim 5, wherein the lamp includes a lens adapted to fit with the globe portion, and configured to shape the light emitted from the globe portion into a predetermined pattern.

15. A lamp as claimed in claim 1, wherein the at least one curved conductor comprises recesses for receipt of respective ones of the junctions.

16. A lamp as claimed in claim 15, wherein the lamp comprises a plurality of curved conductors.

17. A lamp as claimed in claim 16, wherein the lamp comprises at least three curved conductors.

19. A lamp as claimed in claim 15, wherein junctions received in respective recesses are electrically connected to the at least one curved conductor and to an adjacent conductor.

20. A lamp as claimed in claim 16, wherein each of the junctions is electrically connected to the one of the plurality of curved conductors to which it is mounted and to an adjacent curved conductor.

21. A lamp as claimed in claim 20, wherein the junctions are grouped so as to form groups of junctions electrically connected in series.

22. A lamp as claimed in claim 15, wherein the recess has side walls which function as an optical guide for controlling the direction of light transmission and/or the angle of divergence.

23. A lamp as claimed in claim 1, wherein the at least one curved conductor is configured such that junctions are arranged substantially on an imaginary spheriod surface.

25. A lamp as claimed in claim 1, wherein the junctions have a common layer of fluorescent material arranged thereover.

26. A lamp as claimed in claim 1, wherein the lamp comprises a common layer of fluorescent material over at least adjacent junctions.

2. A lamp including a plurality of light emitting junctions mounted to at least one curved conductor so as to adopt a three-dimensional array, wherein the at least one curved conductor comprises recesses for receipt of respective ones of the junctions.

3. A lamp as claimed in claim 2, wherein the at least one curved conductor is configured such that junctions are arranged substantially on an imaginary spheriod surface.

4. A lamp as claimed in claim 2, wherein the recesses have side walls which function as an optical guide for controlling at least one of the direction of light transmission and the angle of divergence.

7. A lamp as claimed in claim 2, wherein the lamp includes a globe portion, with the junctions and the at least one curved conductor being embedded within the globe portion so that the lamp is formed as a unitary structure.

8. A lamp as claimed in claim 2, wherein the at least one curved conductor has a curved conducting surface and the recesses are formed therein.

9. A lamp as claimed in claim 8, wherein the lamp comprises a plurality of curved conductors.

10. A lamp as claimed in claim 9, wherein the lamp comprises at least three curved conductors.

12. A lamp as claimed in claim 2, wherein junctions received in respective recesses are electrically connected to the at least one curved conductor and to an adjacent conductor.

13. A lamp as claimed in claim 9, wherein each of the junctions is electrically connected to the one of the plurality of curved conductors to which it is mounted and to an adjacent curved conductor.

14. A lamp as claimed in claim 13, wherein the junctions are grouped so as to form groups of junctions electrically connected in series.

24. A lamp as claimed in claim 7, wherein the lamp includes a lens adapted to fit with the globe portion, and configured to shape the light emitted from the globe portion into a predetermined pattern.

27. A lamp as claimed in claim 2, wherein the junctions have a common layer of fluorescent material arranged thereover.

28. A lamp as claimed in claim 2, wherein the lamp comprises a common layer of fluorescent material over at least adjacent junctions.

11. (canceled)

18. (canceled)

29. A lamp including a plurality of recesses arranged so as to adopt a three-dimensional array, wherein light emitting junctions are mounted in the recesses.

30. A lamp as claim 29, wherein the junctions are arranged so as to be substantially on an imaginary spheroid surface.

31. A lamp as claimed in claim 29, wherein the recesses have side walls which function as an optical guide for controlling at least one of the direction of light emission from the lamp and the angle of divergence of light emission from the lamp.

32. A lamp as claimed in claim 29, wherein the lamp includes a globe portion, with the junctions and the recesses being embedded within the globe portion so that the lamp is formed as a unitary structure.

33. A lamp as claimed in claim 32, wherein the lamp includes a lens adapted to fit with the globe portion, and configured to shape the light emitted from the globe portion into a predetermined pattern.

34. A lamp as claimed in claim 29, wherein the lamp includes a globe portion, with the junctions and the recesses being embedded within the globe portion so that the lamp is formed as a unitary structure.

35. A lamp as claimed in claim 34, wherein the recesses are formed in at least one conductor having a curved conducting surface.

36. A lamp as claimed in claim 35, wherein the lamp comprises a plurality of curved conductors.

37. A lamp as claimed in claim 36, wherein the lamp comprises at least three curved conductors.

38. A lamp as claimed in claim 37, wherein at least two recesses are formed in each of the plurality of curved conductors.

39. A lamp as claimed in claim 29, wherein each junction mounted in a recess is electrically connected to the recess and to an adjacent conductor.

40. A lamp as claimed in claim 36, wherein each of the junctions is electrically connected to the one of the plurality of curved conductors to which it is mounted and to an adjacent curved conductor.

41. A lamp as claimed in claim 40, wherein the junctions are grouped so as to form groups of junctions electrically connected in series.

42. A lamp as claimed in claim 29, wherein the junctions have a common layer of fluorescent material arranged thereover.

43. A lamp as claimed in claim 29, wherein the lamp comprises a common layer of fluorescent material over at least adjacent junctions.

44. A lamp as claimed in claim 29, wherein the junctions have a common layer of fluorescent material arranged thereover.

45. A lamp as claimed in claim 29, wherein the arrangement of recesses and junctions is such that light produced by the lamp appears to emanate from a substantially point source.