IP Library Granted Patent US 8,439,528
Granted Patent B2
US 8,439,528 · App. 12/681,774 · Granted May 14, 2013

Glass LED light bulbs

Inventors: Ronald J. Lenk (Woodstock, GA); Jonathan B. Betts-Lacroix (San Francisco, CA)
Assignee: Switch Bulb Company, Inc.
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Quick Facts
Patent No.
US 8,439,528
App. No.
12/681,774
Granted
May 14, 2013
Kind
B2
Abstract

A glass LED bulb, which includes a body of glass, the body having at least one hollow portion, and at least one LED contained within the at least one hollow portion. A thermally conductive material is preferably included within the at least one hollow portion. The body of glass can be bulb-shaped or alternatively shaped like an incandescent bulb.

Claims (24)

1. A glass LED bulb comprising:

a solid body of glass, the body having at least one hollow portion formed therein;

at least one LED contained within the at least one hollow portion; and

a thermally conductive material within the at least one hollow portion,

wherein the thermally conductive material fills the at least one hollow portion.

2. A glass LED bulb as set forth in claim 1 , wherein the body of glass has a bulb-shape.

3. A glass LED bulb as set forth in claim 1 , wherein the body of glass has an incandescent bulb-shape.

4. A glass LED bulb as set forth in claim 1 , wherein the thermally conductive material is a fluid, a gel or a plastic.

5. A glass LED bulb as set forth in claim 4 , wherein said fluid, gel or plastic is optically transparent.

6. A glass LED bulb as set forth in claim 4 , wherein said fluid, gel or plastic contains means, or is itself the means, to disperse and/or to color shift the light.

7. A glass LED bulb as set forth in claim 4 , wherein said fluid, gel or plastic is electrically insulating.

8. A glass LED bulb as set forth in claim 4 , wherein said fluid contains a means to gel when exposed to air.

9. A glass LED bulb as set forth in claim 4 , wherein said fluid, gel or plastic is hydrated polyacrylimide.

10. A glass LED bulb as set forth in claim 4 , wherein said fluid, gel or plastic provides mechanical relief for the glass.

11. A glass LED bulb as set forth in claim 1 , wherein the at least one hollow portion comprises a plurality of hollow portions having interconnections.

12. A glass LED bulb as set forth in claim 11 , wherein said interconnections are used to interconnect said at least one LED.

13. A glass LED bulb as set forth in claim 1 , further comprising a power source for the LEDs, which is included in the bulb.

14. A glass LED bulb as set forth in claim 13 , wherein said power source for the LEDs is compatible with pre-existing power sources, permitting the bulb to be used in pre-existing fixtures.

15. A glass LED bulb as set forth in claim 1 , wherein said bulb-shaped body of glass contains means to disperse and/or means to color shift the light.

16. A glass LED bulb as set forth in claim 15 , wherein said means to disperse the light is bubbles in said glass.

17. A glass LED bulb as set forth in claim 15 , wherein said means to disperse the light is a collection of Mie scatterers in said glass.

18. A glass LED bulb as set forth in claim 15 , wherein said means to color shift the light is a dye in said glass.

19. A glass LED bulb as set forth in claim 15 , wherein said means to color shift the light is a collection of Rayleigh scatterers in said glass.

20. A glass LED bulb as set forth in claim 1 , wherein interconnections between the at least one LEDs is made on a printed circuit board.

Assignments (4)
CHANGE OF NAME Recorded Nov 6, 2012
From: SUPERBULBS, INC.
To: TEOS, INC.
Reel/Frame 029252/0781 →
CHANGE OF NAME Recorded Oct 12, 2011
From: TEOS, INC.
To: SWITCH BULB COMPANY, INC.
Reel/Frame 027052/0868 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2011
From: LENK, RONALD J.
To: SUPERBULBS, INC.
Reel/Frame 025890/0856 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2011
From: BETTS-LACROIX, JONATHAN
To: SUPERBULBS, INC.
Reel/Frame 025890/0921 →
Continuity (2)
Provisional Application 60977144 · Oct 3, 2007
Related Publication 20110050098A1 · Mar 3, 2011