IP Library Granted Patent US 6,948,829
Granted Patent B2
US 6,948,829 · App. 10/765,141 · Granted Sep 27, 2005

Light emitting diode (LED) light bulbs

Assignee: Dialight Corporation
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Quick Facts
Patent No.
US 6,948,829
App. No.
10/765,141
Granted
Sep 27, 2005
Kind
B2
Abstract

A light emitting diode (LED) light bulb that includes plural individual elements as sub-assembly elements of the overall light bulb. Different sub-assembly elements of a lens, a LED printed circuit board, a housing also functioning as a heat sink, a lower housing, and other individual sub-assembly components are utilized. The LED printed circuit board sub-assembly containing the LEDs can also be provided relatively close to a base.

Claims (39)

1. A light bulb comprising:

(a) a board supporting at least one light emitting diode (LED);

(b) a base housing;

(c) a heat sink housing configured to be secured to said base housing at a first end of said heat sink housing and configured to receive said board at a second end of said heat sink housing, opposite to said first end of said heat sink housing, said heat sink housing further configured to have sufficient thermal mass to act as a heat sink; and

(d) a power supply sub-assembly configured to fit into said base housing and to provide power to said at least one LED on said board.

2. A light bulb according to claim 1 , further comprising:

(e) a lens to fit over said board and to connect to said heat sink housing at said second end of said heat sink housing.

3. A light bulb according to claim 1 , wherein said at least one LED includes plural LEDs mounted on said board.

4. A light bulb according to claim 1 , wherein said at least one LED includes plural LEDs mounted on said board.

5. A light bulb according to claim 1 , wherein said lens is made of plastic.

6. A light bulb according to claim 2 , wherein said lens is made of plastic.

7. A light bulb comprising:

(a) means for supporting at least one light emitting diode (LED);

(b) first means for housing said means for supporting; and

(e) second means for housing to be secured to said first means for housing at a first end of said second means for housing and for receiving said means for supporting at a second end of said second means for housing, opposite to said first end of said second means for housing, said second means for housing further configured to have sufficient thermal mass to act as a heat sink.

8. A light bulb according to claim 7 , further comprising:

(d) means to fit into said first means for housing and for providing power to said at least one LED on said means for supporting.

9. A light bulb according to claim 7 , further comprising:

(d) light output means for fitting over said means for supporting and to connect to said second means for housing at said second end of said second means for housing.

10. A light bulb according to claim 8 , further comprising:

(e) light output means for fitting over said means for supporting and to connect to said second means for housing at said second end of said second means for housing.

11. A light bulb according to claim 7 , wherein said at least one LED includes plural LEDs mounted on said means for supporting.

12. A light bulb according to claim 8 , wherein said at least one LED includes plural LEDs mounted on said means for supporting.

13. A light bulb according to claim 9 , wherein said light output means is made of plastic.

14. A light bulb according to claim 10 , wherein said light output means is made of plastic.

15. A light bulb comprising:

(a) a board supporting at least one light emitting diode (LED);

(b) a base housing; and

(c) a heat sink housing forming an outer portion of the light bulb and configured to be secured to said base housing at a first end of said heat sink housing and configured to receive said board at a second end of said heat sink housing, opposite to said first end of said heat sink housing, said heat sink housing further configured to have sufficient thermal mass to act as a heat sink.

16. A light bulb according to claim 15 , further comprising:

(d) a power supply sub-assembly configured to fit into said base housing and to provide power to said at least one LED on said board.

17. A light bulb according to claim 15 , further comprising:

(d) a lens to fit over said board and to connect to said heat sink housing at said second end of said heat sink housing.

18. A light bulb according to claim 16 , further comprising:

(e) a lens to fit over said board and to connect to said heat sink housing at said second end of said heat sink housing.

19. A light bulb according to claim 15 , wherein said at least one LED includes plural LEDs mounted on said board.

20. A light bulb according to claim 16 , wherein said at least one LED includes plural LEDs mounted on said board.

21. A light bulb according to claim 17 , wherein said lens is made of plastic.

22. A light bulb according to claim 18 , wherein said lens is made of plastic.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Apr 24, 2026
From: HSBC UK BANK PLC
To: DIALIGHT CORPORATION
Reel/Frame 075458/0034 →
SECURITY INTEREST Recorded Jul 21, 2022
From: DIALIGHT CORPORATION
To: HSBC UK BANK PLC, AS SECURITY AGENT
Reel/Frame 060803/0351 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 28, 2004
From: VERDES, ANTHONY; CHEN, YUMING
To: DIALIGHT CORPORATION
Reel/Frame 014930/0607 →
Continuity (1)
Related Publication 20050162864A1 · Jul 28, 2005