Lighting applications using organic light emitting diodes

• US 9,869,460 B2
• Filed: 04/16/2015
• Issued: 01/16/2018
• Est. Priority Date: 08/20/2012
• Status: Active Grant

• Current Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Original Assignee: Cooper Technologies Company (Eaton Corporation PLC.)
• Inventors: Manahan, Joseph Michael, Rothenberger, Richard, Gawronski, Grant L.
• Primary Examiner(s): Alavi, Ali
• Application Number:
  US14/688,596
• Publication Number:
  US 20150226414A1
• Time in Patent Office: 1,006 Days
• CPC Class Codes: F21K 9/60 Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
• CPC Class Codes: F21S 2/00 Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
• CPC Class Codes: F21S 8/033 the surface being a wall or like vertical structure, e.g. building facade
• CPC Class Codes: F21S 8/04 intended only for mounting on a ceiling or the like overhead structures F21S8/02 takes precedence; details of ceiling bases F21V21/03
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 21/14 Adjustable mountings
• CPC Class Codes: F21V 21/15 specially adapted for power operation, e.g. by remote control
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 23/04 the elements being switches safety devices F21V25/00
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21Y 2105/00 Planar light sources
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2113/20 of different form
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: F21Y 2115/15 Organic light-emitting diodes [OLED]
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 45/60 Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
• CPC Class Codes: H05B 47/175 : by remote control
• CPC Class Codes: Y02B 20/30 : Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

A lighting device that includes a first panel of light sources, where the first panel has a first edge. The lighting device can also include a second panel of light sources, where the second panel has a second edge, where the second edge of the second panel of light sources is mechanically coupled to the first edge of the first panel of light sources. The first panel of light sources and the second panel of light sources can form an angle relative to each other. Adjusting the angle can adjust the light output from the light sources. Such an angle can be formed based on a target level of light received by a target area.

Claims

1. A lighting device, comprising:

a plurality of light-emitting diodes (LEDs) disposed on a mounting surface, wherein the plurality of LEDs are illuminated using a first power source; and

a plurality of organic LEDs (OLEDs) disposed on the mounting surface, wherein the plurality of OLEDs are illuminated using a second power source,

wherein the plurality of OLEDs are illuminated when the plurality of LEDs are not illuminated.

2. The lighting device of claim 1, wherein the plurality of OLEDs are further illuminated when at least one of the plurality of LEDs is dimmed.

3. The lighting device of claim 1, wherein the plurality of OLEDs are further illuminated when at least one of the plurality of LEDs is illuminated.

4. The lighting device of claim 1, further comprising,

a controller that controls the first power source and the second power source.

5. The lighting of claim 4, wherein the controller provides power to the OLEDs when the controller receives a dimming setting for the LEDs.

6. The lighting device of claim 1, wherein the plurality of LEDs has a shape and a size, and wherein the plurality of OLEDs has substantially the size.

7. The lighting device of claim 6, wherein the shape is a hexagon, wherein the plurality of OLEDs has the shape.

8. The lighting device of claim 7, wherein the plurality of OLEDs and the plurality of LEDs are arranged in a honeycomb pattern on the mounting surface.

9. The lighting device of claim 8, wherein each OLED is directly adjacent to only LEDs of the plurality of LEDs.

10. The lighting device of claim 1, wherein the first power source comprises a first controller for controlling the plurality of LEDs, and wherein the second power source comprises a second controller for controlling the plurality of OLEDs.

11. The lighting device of claim 1, wherein the first power source comprises an alternating current-to-direct current (AC/DC) converter, and wherein the second power source lacks an AC/DC converter.

12. The lighting device of claim 1, wherein the plurality of OLEDs are further illuminated when the first power source loses power.

13. A lighting fixture, comprising:

at least one organic light-emitting diode (OLED) disposed on a light source platform;

a housing mechanically coupled to the light source platform, wherein the housing lacks heat sink fins used for heat dissipation; and

a power source disposed within the housing and electrically coupled to the at least one OLED,

wherein the housing, the power source, and the at least one OLED are exposed to a high-temperature ambient environment.

14. The lighting fixture of claim 13, further comprising:

a lens mechanically coupled to the light source platform.

15. The lighting fixture of claim 13, wherein the high-temperature environment results in a maximum surface temperature of the housing at 185°

F.

16. The lighting fixture of claim 13, wherein the housing is mounted on an electrical enclosure.

17. The lighting fixture of claim 16, wherein the electrical enclosure is located in a hazardous environment.

18. The lighting fixture of claim 17, wherein the electrical enclosure complies with applicable standards with the housing mounted thereon in the hazardous environment.

19. The lighting fixture of claim 18, wherein the electrical enclosure is an explosion-proof enclosure.

20. The lighting fixture of claim 13, wherein the housing is located in a hazardous environment, and wherein the at least one OLED reduces a probability of becoming a source of ignition in the hazardous environment.