Light emitting diode replacement lamp

• US 8,632,215 B2
• Filed: 04/25/2011
• Issued: 01/21/2014
• Est. Priority Date: 11/04/2003
• Status: Active Grant

• Current Assignee: LEDVANCE LLC (MLS Co. Ltd.)
• Original Assignee: TerraLUX Incorporated
• Inventors: Catalano, Anthony, Harrison, Daniel J.
• Primary Examiner(s): Ward, John A
• Application Number:
  US13/093,197
• Publication Number:
  US 20110260647A1
• Time in Patent Office: 1,002 Days
• Field of Search: 362/257, 362/240, 362/249.11, 362/545, 362/652, 362/653, 315/185, 315/246, 315/307
• US Class Current: 362/257
• CPC Class Codes: F21K 9/233 specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
• CPC Class Codes: F21K 9/238 Arrangement or mounting of circuit elements integrated in the light source
• 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: F21K 9/61 using light guides
• CPC Class Codes: F21K 9/65 specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
• CPC Class Codes: F21K 9/68 Details of reflectors forming part of the light source
• CPC Class Codes: F21S 10/06 flashing, e.g. with rotating reflector or light source signalling lighting devices mounted on vehicles B60Q1/26
• CPC Class Codes: F21S 9/022 Emergency lighting devices
• CPC Class Codes: F21V 14/04 by movement of reflectors in vehicle head lamps F21S41/675
• CPC Class Codes: F21V 14/06 by movement of refractors in vehicle head lamps F21S41/635
• CPC Class Codes: F21V 23/003 the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
• CPC Class Codes: F21V 29/505 of reflectors
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 7/0008 providing for indirect lighting
• CPC Class Codes: F21W 2121/00 Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 2924/00014 : the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 33/58 : Optical field-shaping elements
• CPC Class Codes: H01L 33/60 : Reflective elements
• CPC Class Codes: H05B 45/10 : Controlling the intensity of the light
• CPC Class Codes: H05B 45/3725 : Switched mode power supply [SMPS]
• CPC Class Codes: H05B 45/38 : using boost topology
• CPC Class Codes: H05B 45/40 : Details of LED load circuits
• CPC Class Codes: Y02B 20/30 : Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

In various embodiments, an illumination device includes a housing, a power connector for connecting the illumination device to a power socket and receiving input power, a light emitter for direct illumination disposed within the housing, a circuit for regulating the input power and providing the regulated power to the light emitter, and a decorative illumination element for providing decorative illumination.

Claims

1. An illumination device comprising:

a housing;

a power connector for connecting the illumination device to a power socket and receiving an input power;

a first light emitter disposed within the housing;

a first optical component for directing illumination generated by the first light emitter outside the housing in a first direction;

a circuit for regulating the input power and providing the regulated power to the first light emitter;

a second light emitter for decorative illumination; and

a second optical component, separate from the first optical component, for directing decorative illumination therethrough outside the housing in a second direction, the second direction being different from the first direction.

2. The illumination device of claim 1, wherein the second light emitter is disposed within the housing.

3. The illumination device of claim 1, wherein the decorative illumination generated by the second light emitter is distinct from the illumination generated by the first light emitter.

4. The illumination device of claim 3, wherein the decorative illumination and the illumination generated by the first light emitter are distinct in terms of an illumination color.

5. The illumination device of claim 3, wherein the decorative illumination and the illumination generated by the first light emitter are distinct in terms of an illumination intensity.

6. The illumination device of claim 1, wherein the second optical component guides decorative illumination generated from the secondary light emitter along substantially an entire length thereof.

7. The illumination device of claim 1, further comprising a secondary circuit for regulating the input power and providing a regulated power to the secondary light emitter.

8. The illumination device of claim 7, wherein the secondary circuit controls at least one of an intensity or a color of the secondary light emitter.

9. The illumination device of claim 7, further comprising a circuit to respond to wireless commands for controlling the secondary light emitter.

10. The illumination device of claim 1, wherein the first optical component is a total internal reflector.

11. The illumination device of claim 1, further comprising a heat sink thermally connected to the light emitter for regulating a temperature of the first light emitter.

12. The illumination device of claim 1, wherein the second optical component contains openings through which the decorative illumination exits the housing.

13. The illumination device of claim 1, wherein the second direction is away from the first optical component.

14. A method of using an illumination device to provide a decorative illumination characteristic, comprising:

providing illumination from a first light emitter disposed within a housing

directing illumination generated by the first light emitter outside the housing in a first direction using a first optical component;

providing decorative illumination, distinct from the direct illumination, from a second light emitter; and

directing decorative illumination generated by the second light emitter through a second optical component outside the housing and in a second direction,

wherein the second optical component is separate from the first optical component and the second direction is different from the first direction.

15. The method of claim 14, wherein the second direction is away from the first optical component.

16. The method of claim 14, further comprising providing the illumination generated by the first light emitter through a substantially transparent cover attached to the housing.

17. The method of claim 14, wherein the decorative illumination is directed through a substantially translucent shade of the housing.

18. The method of claim 14, wherein at least one of an intensity or a color of the decorative illumination generated from the second light emitter is controlled by a circuit.

19. The method of claim 14, wherein the secondary light emitter is responsive to wireless commands.

20. The method of claim 14, wherein the decorative illumination is distinct from the illumination generated by the first light emitter in terms of at least one of emission direction, color, or intensity.

21. The method of claim 14, further comprising directing the decorative illumination along substantially an entire length of the second optical component.

22. The method of claim 14, wherein the decorative illumination is directed outside the housing through openings in the second optical component.