Light emitting diode lamp comprising one LED consuming a first electrical power and one radiation-emitting semiconductor component consuming an electrical dissipation power

• US 8,292,458 B2
• Filed: 03/26/2008
• Issued: 10/23/2012
• Est. Priority Date: 03/29/2007
• Status: Expired due to Fees

• Current Assignee: OSRAM Licht AG (Ams-Osram AG)
• Original Assignee: OSRAM Licht AG (Ams-Osram AG)
• Inventors: Bertram, Ralph Peter, Kraus, Robert
• Primary Examiner(s): Vo, Tuyet Thi
• Application Number:
  US12/055,798
• Publication Number:
  US 20080265789A1
• Time in Patent Office: 1,672 Days
• Field of Search: 362/6, 362/8, 362/12, 362/11, 362/17, 362/18, 362/2, 362611-613, 362/553, 362/552, 362/555, 362/510, 362/509, 362543-545, 362/546, 362/647, 362/650, 362/651, 362/227, 362/228, 362/230, 362/231, 362/259
• US Class Current: 362/231
• 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: F21S 41/13 Ultraviolet light; Infrared light
• CPC Class Codes: F21S 41/153 arranged in a matrix
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21W 2102/00 Exterior vehicle lighting devices for illuminating purposes
• CPC Class Codes: F21W 2103/20 Direction indicator lights
• CPC Class Codes: F21Y 2107/00 Light sources with three-dimensionally disposed light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED lamp is specified, comprising at least one LED and at least one radiation-emitting semiconductor component, it being the case that when the LED lamp is operating, the at least one LED emits visible light and the at least one radiation-emitting semiconductor component emits electromagnetic radiation having a peak intensity outside the visible region of the spectrum.

Claims

1. An LED lamp configured to be used with a light having a predefined total electrical power, the LED lamp comprising:

an LED operable to emit visible light wherein, during operation, said at least one LED consumes a first electrical power; and

at least one radiation-emitting semiconductor component operable to emit electromagnetic radiation having a peak intensity outside the visible region of the spectrum;

wherein said at least one radiation-emitting semiconductor component consumes an electrical dissipation power that is greater than or equal to said first electrical power, the electrical dissipation power selected such that a total electrical power consumed by the LED lamp in operation matches the predefined total electrical power.

2. The LED lamp as in claim 1, wherein said peak intensity is in the infrared or ultraviolet region of the spectrum.

3. The LED lamp as in claim 1, wherein said LED emits visible light in a first solid angle region and said radiation-emitting semiconductor component emits electromagnetic radiation in a second solid angle region that is at least partially different from the first.

4. The LED lamp as in claim 1, wherein said electrical dissipation power is at least twice said first electrical power.

5. The LED lamp as in claim 1, wherein an efficiency of said radiation-emitting semiconductor component is greater than or equal to 40%.

6. The LED lamp as in claim 1, comprising a radiation exit surface that is illuminated by said LED and by said radiation-emitting semiconductor component.

7. The LED lamp as in claim 6, wherein said radiation-emitting semiconductor component is configured to de-ice said radiation exit surface.

8. The LED lamp as in claim 1, comprising a standard electrical connection.

9. The LED lamp as in claim 8, comprising a standard base that comprises a standard electrical connection.

10. The LED lamp as in claim 9, wherein said standard base is an Edison base, a bayonet base, a plug-in base or a base with connecting cables.

11. A light comprising an illuminant, the illuminant comprising an LED lamp as in claim 1.

12. The light as in claim 11, which light is a motor vehicle light.

13. The light as in claim 11, which light is an airfield light.

14. The light as in claim 11, comprising a ballast that detects a deviation of electrical power consumed by said illuminant during operation from a predefined total electrical power.

15. The light as in claim 14, wherein said total electrical power set by said ballast is adapted for operating said light with an incandescent lamp as illuminant.

16. The light as in claim 11, which light is a signal light.

17. The light as in claim 16, which light is a flasher.

18. The light as in claim 11 and comprising an LED lamp wherein said radiation-emitting semiconductor component is suitable for warming and/or de-icing an object at a distance from said LED lamp, wherein said light comprises a housing and said radiation-emitting semiconductor component is configured to de-ice at least one subregion of said housing.

19. The light as in claim 18, wherein said housing comprises a radiation penetration surface and said radiation-emitting semiconductor component is configured to de-ice said radiation penetration surface.

20. A method for dissipating an electrical dissipation power in association with an LED lamp operable to emit visible light, the method comprising:

targetedly increasing a total electrical power consumed by said LED lamp during operation by operating a radiation-emitting semiconductor component to emit electromagnetic radiation having a peak intensity outside the visible region of the spectrum, the electrical dissipation power selected such that a total electrical power consumed by the LED lamp in operation matches a predefined total electrical power, and

dissipating a portion of said electrical dissipation power by radiating, out of said LED lamp, the electromagnetic radiation emitted by said radiation-emitting semiconductor component

wherein, during operation, at least one LED of the LED lamp consumes a first electrical power and at least one radiation-emitting semiconductor component of the LED lamp consumes an electrical dissipation power that is greater than or equal to said first electrical power.