LED lamp having at least two sectors

• US 9,562,677 B2
• Filed: 05/30/2014
• Issued: 02/07/2017
• Est. Priority Date: 04/09/2014
• Status: Active Grant

• Current Assignee: IDEAL Industries Lighting, LLC (Ideal Industries Incorporated)
• Original Assignee: CREE Incorporated (Wolfspeed, Inc.)
• Inventors: Negley, Gerald H., Reynolds, Matthew C., Progl, Curt
• Primary Examiner(s): TRAN, THUY V
• Application Number:
  US14/292,387
• Publication Number:
  US 20150292686A1
• Time in Patent Office: 984 Days
• Field of Search: 315/34, 315/51, 362/249.01, 362/249.02, 362/296.01, 362/297, 362/310, 362/311.01, 362/311.02, 362/363
• US Class Current: 1/1
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21K 9/238 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21K 9/62 using mixing chambers, e.g. housings with reflective walls
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 23/009 the casing being inside the housing of the lighting device
• CPC Class Codes: F21V 29/506 of globes, bowls or cover glasses
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 29/85 characterised by the material liquid coolants F21V29/56
• CPC Class Codes: F21V 3/049 Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
• CPC Class Codes: F21V 3/0625 the material diffusing light, e.g. translucent plastics
• CPC Class Codes: F21Y 2107/00 Light sources with three-dimensionally disposed light-generating elements
• CPC Class Codes: F21Y 2107/90 on two opposite sides of supports or substrates
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 47/19 via wireless transmission

Abstract

A lamp comprises an interior space and a base. An enclosure may be connected to the base to enclose the interior space. At least one LED board divides the interior space into a plurality of sectors. An LED is located in each sector in the enclosure operable to emit light when energized through an electrical path from the base. Light from the LED is reflected by a wall of the sector to create a reflected light source.

Claims

1. A lamp comprising:

a base;

at least one LED board extending from the base to define at least a first sector and a second sector;

at least one first LED located in the first sector and at least one second LED located in the second sector, the at least one first LED and the and at least one second LED operable to emit light when energized through an electrical path from the base;

a first lens disposed over the at least one first LED and a second lens disposed over the art least one second LED where the first lens and the second lens and the at least one LED board are exposed to the exterior of the lamp.

2. The lamp of claim 1 wherein the first lens and the second lens comprises a diffuser.

3. The lamp of claim 1 wherein the first lens and the second lens comprises a phosphor.

4. A lamp comprising:

an at least partially optically transmissive enclosure defining an interior space having an interior surface having a shape and comprising vent openings that provide communication between the interior space and an exterior of the lamp;

an electrically conductive base connected directly to the enclosure;

at least one LED board having a peripheral edge and dividing the interior space into at least two sectors, wherein the peripheral edge extends to the interior surface and conforms to the shape of the interior surface such that the at least two sectors are bounded by the at least one LED board and a portion of the enclosure;

at least one LED located in each of the at least two sectors in the enclosure and operable to emit light when energized through an electrical path from the base wherein a portion of the enclosure is defined by a partition internal of the enclosure and lamp electronics are disposed in the enclosure between the partition and the base.

5. The lamp of claim 4 wherein the base comprises an Edison screw and the enclosure comprises a plastic enclosure.

6. The lamp of claim 4 wherein the inside surface of a portion of the enclosure adjacent the Edison screw is mechanically diffusive to prevent visibility through the portion.

7. The lamp of claim 4 wherein the enclosure comprises a plastic enclosure having a polished finish exterior surface and a mechanically diffusive interior surface.

8. The lamp of claim 4 further comprising a reinforcement member connecting the at least one LED board to the enclosure.

9. The lamp of claim 4 wherein the at least one LED board is electrically coupled to the base by a first spring contact and a second spring contact.

10. A lamp comprising:

an at least partially optically transmissive enclosure having an interior surface having a shape and defining an interior space;

a base connected to the enclosure;

a first LED board and a second LED board dividing the interior space into at least two sectors, the first LED board comprising at least a first a peripheral edge and the second LED board comprising at least a second peripheral edge where the at least a first peripheral edge and the at least a second peripheral edge have a length and extend to the interior surface over substantially the length of the at least a first peripheral edge and the at least a second peripheral edge where the at least a first peripheral edge and the at least second peripheral edge conform to the shape of the interior surface of the optically transmissive enclosure over substantially the length of the at least a first peripheral edge and the at least a second peripheral edge;

at least one first LED mounted on the first LED board and located in one of the at least two sectors and at least one second LED mounted on the second LED board and located in another one of the at least two sectors, the at least one first LED and the at least one second LED being operable to emit light when energized through an electrical path from the base.

11. The lamp of claim 10 wherein the base consists of an Edison screw and the enclosure comprises a plastic enclosure that is connected directly to the Edison screw.

12. The lamp of claim 11 wherein the inside surface of a portion of the enclosure adjacent the Edison screw is mechanically diffusive to prevent visibility through the portion.

13. The lamp of claim 12 wherein the portion of the enclosure is defined by a partition internal of the lamp.

14. The lamp of claim 13 wherein lamp electronics are disposed between the partition and the Edison screw.

15. The lamp of claim 10 wherein the enclosure comprises a plastic enclosure having a polished finish exterior surface and a mechanically diffusive interior surface.

16. The lamp of claim 10 wherein the enclosure comprises vent openings.

17. The lamp of claim 10 further comprising a reinforcement member connecting the first LED board to the second LED board.

18. The lamp of claim 17 wherein the enclosure comprises vent openings and the reinforcement member comprises blockers positioned internally of the enclosure that prevent direct line of sight to the at least one LED though the vent openings.

19. The lamp of claim 18 wherein the blockers are light diffusive.

20. The lamp of claim 10 further comprising a reinforcement member connecting the first LED board and the second LED board to the enclosure.

21. The lamp of claim 10 wherein the first LED board and the second LED board divide the interior space into four sectors where two LEDs are located in each sector a first one of the two LEDs in each sector located on the first LED board and a second one of the two LEDs in each sector located on the second LED board.

22. The lamp of claim 10 wherein the first LED board is electrically coupled to the base by a first spring contact.

23. The lamp of claim 10 wherein the first LED board is electrically coupled to the second LED board by a second spring contact.