Illumination system

• US 6,902,308 B2
• Filed: 10/09/2002
• Issued: 06/07/2005
• Est. Priority Date: 10/09/2001
• Status: Active Grant

• Current Assignee: Rosstech Signals, Inc.
• Original Assignee: Rosstech Signals, Inc.
• Inventors: Love, David A.
• Primary Examiner(s): O'Shea, Sandra
• Assistant Examiner(s): Zeade, Bertrand
• Application Number:
  US10/268,057
• Publication Number:
  US 20030076692A1
• Time in Patent Office: 972 Days
• Field of Search: 362/545, 362/240, 362/248, 362/244, 362/800, 362/27, 362/367, 362/101, 361/806
• US Class Current: 362/545
• CPC Class Codes: F21S 8/00 Lighting devices intended for fixed installation F21S9/00, F21S10/00 take precedence; using a string or strip of light sources F21S4/00
• CPC Class Codes: F21V 23/04 the elements being switches safety devices F21V25/00
• CPC Class Codes: F21W 2131/401 for swimming pools
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

A lighting assembly includes a printed circuit board and a cover. The printed circuit board carries a plurality of groups of LEDs. The cover is unitarily formed and receives the printed circuit board. The cover defines a corresponding plurality of windows. Each of the windows is configured to direct a high intensity light generated by a corresponding one of the groups of LEDs in a distinct direction.

Claims

1. A lighting assembly comprising:

a printed circuit board carrying a plurality of groups of LEDs; and

a unitarily formed cover receiving the printed circuit board and defining a corresponding plurality of windows, each of the windows configured to direct a high intensity light generated by a corresponding one of the groups of LEDs in a distinct direction;

wherein the unitarily formed cover includes an open side adapted to be positioned adjacent a generally planer mounting surface.

2. The lighting assembly of claim 1, wherein the plurality of groups of LEDs includes three groups of LEDs.

3. The lighting assembly of claim 1, wherein each group of LEDs includes at least three LEDs having distinct colours.

4. The lighting assembly of claim 3, wherein the distinct colours of the LEDs are common among the three groups of LEDs.

5. The lighting assembly of claim 4, wherein the printed circuit board includes a control arrangement for controlling the groups of LEDs to simultaneously emit a common color.

6. The lighting assembly of claim 3, wherein each group of LEDs is associated with a cap having a three apertures, each aperture receiving one of the LEDs.

7. The lighting assembly of claim 6, wherein each of the caps includes a portion captured between a peripheral frame of the cover and at least one rib defined by the cover.

8. The lighting assembly of claim 3, wherein the distinct colours of the groups of LEDs are independently controllable to adjust intensity.

9. The lighting assembly of claim 5, wherein the control arrangement is operative to simultaneously fade at least a distinct color of each of the groups of LEDs up in intensity and a second distinct color of each of the groups of LEDs down in intensity to continuously provide a constant light intensity of varying colors.

10. The lighting assembly of claim 1, wherein the cover is mounted to a surface illuminated by the lighting assembly.

11. The lighting assembly of claim 10, wherein the groups of LEDs are aligned parallel to the surface illuminated by the lighting assembly.

12. A lighting arrangement comprising:

a plurality of electrically connected lighting pods, each pod including;

a printed circuit board;

a plurality of windows, each window oriented in a different direction; and

a plurality of LEDs mounted to the printed circuit board in groups, each group configured to emit high-intensity light through a corresponding one of the windows.

13. The lighting arrangement of claim 12, wherein the LED groups of a pod are oriented to illuminate a surface upon which the pod is mounted.

14. The lighting arrangement of claim 12, wherein the pods comprise:

one or more master pods each having a processor; and

one or more slave pods controlled by the one or more processors.

15. The lighting arrangement of claim 12, selectively configurable to be powered by AC or DC power.

16. The lighting arrangement of claim 12, each of the pods further comprising a cover in which the windows are defined and the circuit board is mounted.

17. The lighting arrangement of claim 16, configured to illuminate one or more surfaces, the cover of each of the pods mounted on the one or more surfaces.

18. A lighting arrangement comprising:

a plurality of lighting pods each having a cover by which the pod can be mounted to a surface, each pod having a circuit board mounted inside the cover;

each pod including a plurality of LEDs mounted to the circuit board in groups, each group configured to emit high-intensity light through the cover to illuminate the surface.

19. The lighting arrangement of claim 18, wherein one of the circuit boards comprises a processor configured to modulate the LEDs based on switching of a power supply to the arrangement between on and off states.

20. The lighting arrangement of claim 19, wherein the processor is configured to retain a modulation sequence for the LEDs while the power supply is in an off state.

21. The lighting arrangement of claim 18, wherein each cover comprises a plurality of windows, each window oriented in a different direction.

22. A lighting assembly comprising:

a printed circuit board carrying a plurality of groups of LEDs; and

a unitarily formed cover receiving the printed circuit board and defining a corresponding plurality of windows, each of the windows configured to direct a high intensity light generated by a corresponding one of the groups of LEDs in a distinct direction;

wherein each group of LEDs includes at least three LEDs having distinct colours;

wherein each group of LEDs is associated with a cap having three apertures, each aperture receiving one of the LEDs; and

wherein each of the caps includes a portion captured between a peripheral frame of the cover and at least one rib defined by the cover.