LED lighting fixture

• US 20080062691A1
• Filed: 09/12/2006
• Published: 03/13/2008
• Est. Priority Date: 09/12/2006
• Status: Active Grant

• Current Assignee: IDEAL Industries Lighting, LLC (Ideal Industries Incorporated)
• Original Assignee: CREE Incorporated (Wolfspeed, Inc.)
• Inventors: Roberts, Lawrence Maurice, Chen, Yuming, Villard, Russell George, Medendorp, Nicholas W.
• Granted Patent: US 7,766,508 B2
• Time in Patent Office: Days
• US Class Current: 362/252
• CPC Class Codes: F21S 4/20 with light sources held by or within elongate supports
• CPC Class Codes: F21S 8/08 with a standard F21S6/00 takes precedence
• CPC Class Codes: F21V 14/02 by movement of light sources in vehicle head lamps F21S41/657
• CPC Class Codes: F21V 19/02 with provision for adjustment, e.g. for focusing
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A light emitting diode (LED) lighting fixture for achieving a desired illumination pattern includes a panel and one or more LEDs attached to a surface of the panel. One or more of the LEDs may be mounted at an angle to the surface.

Claims

1. A LED lighting fixture, comprising:

a panel, and

one or more LEDs attached to a planar surface of the panel,

wherein one or more of the LEDs are mounted at an angle to the planar surface.

2. The fixture of claim 1, wherein two or more LEDs are mounted at different angles to the planar surface.

3. The fixture of claim 1, wherein one or more LEDs is fitted with a secondary optic thereon.

4. The fixture of claim 1, wherein two or more LEDs are fitted with different secondary optics thereon.

5. The fixture of claim 1, wherein an angle at which a given LED is mounted to the panel is variable.

6. The fixture of claim 1, wherein the one or more LEDs are arranged as an array of LEDs on a plurality of strips, and wherein one or more of the strips is attached at an angle to the planar surface of the panel.

7. The fixture of claim 6, wherein two or more of the LED strips on a given panel are set at different angles to the planar surface.

8. The fixture of claim 6, wherein one or more LEDs on at least one of the LED strips, or one or more LED strips is fitted with a secondary optic thereon.

9. The fixture of claim 6, wherein two or more LED on the same or different LED strips or two or more LED strips are fitted with different secondary optics thereon.

10. The fixture of claim 6, wherein an angle at which a given LED strip is mounted to the panel is variable.

11. The fixture of claim 6, wherein one or more of the LED strips are curved in an arc on its corresponding panel surface.

12. A LED lighting fixture, comprising:

a panel, and

one or more LEDs attached to a planar surface of the panel,

wherein an angle at which a given LED is mounted to the panel is variable in two dimensions.

13. A LED lighting fixture, comprising:

at least two connected panels, each panel including one or more strips of LEDs attached to a planar surface of the panel,

wherein at least one of the panels is set at an angle to the other panel.

14. The fixture of claim 13, wherein at least one of the LED strips is attached at an angle to the planar surface of its corresponding panel.

15. The fixture of claim 13, wherein two or more of the LED strips on a given panel are set at different angles from each other, relative to the panel planar surface.

16. The fixture of claim 13, wherein one or more LEDs on at least one of the LED strips is fitted with a secondary optic thereon.

17. The fixture of claim 13, wherein two or more LED on the same or different LED strips or two or more LED strips are fitted with different secondary optics thereon.

18. The fixture of claim 13, wherein a given LED strip that is mounted to a given panel is angled in at least two different planes.

19. The fixture of claim 13, wherein one or more LEDs on one or more of the LED strips is fitted with a secondary optic thereon.

20. The fixture of claim 13, wherein one or more of the LED strips are curved in an arc on its corresponding panel surface.

21. A light emitting diode (LED) lighting fixture, comprising:

at least one panel, and

a plurality of strips of LEDs mounted on a planar surface of the at least one panel, wherein

at least one LED strip is mounted at an angle to the planar surface,

one or more LEDs on one or more of the LED strips are fitted with a secondary optic, and

the at least one panel is angled from horizontal within the fixture.

22. The fixture of claim 21, further comprising a pair of panels, each panel connected to one another via a hinge and configured to be set at an angle from a horizontal plane via the hinge.

23. The fixture of claim 21, wherein each LED strip includes:

a line of LEDs arranged in series on a metal printed circuit board which extends across the at least one panel, and wherein the metal printed circuit board is mounted on a metal bar that is affixed to the panel, and wherein two or more of the LED strips are set at different angles from each other, relative to the panel planar surface.

24. The fixture of claim 23, wherein the metal bar has one or more legs which are attached to the planar surface of the panel via at least one friction hinge, the one or more legs providing a heat dissipation function for the LED strip mounted thereon.

25. The fixture of claim 21, wherein two or more LEDs on the same or different LED strips or two or more LED strips are fitted with different secondary optics thereon.

26. The fixture of claim 21, wherein an angle at which a given LED strip is mounted to the at least one panel is variable in one or two dimensions.

27. A LED lighting fixture, comprising:

a panel, and

one or more LEDs arranged on a plurality of LED strips, the LED strips mounted on the panel so that two or more LEDs on the same or different strips are angled relative to each other.

28. The fixture of claim 27, wherein the panel has a planar surface and two or more of the LED strips are set at different angles from each other, relative to the panel planar surface.

29. The fixture of claim 27, wherein the panel has a curved surface so that LEDs on a given LED strip are set at different angles from each other, relative to each other on the panel'"'"'s curved surface.