Vertical luminaire

• US 7,934,851 B1
• Filed: 09/15/2008
• Issued: 05/03/2011
• Est. Priority Date: 08/19/2008
• Status: Expired due to Fees

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Boissevain, Chris, Garcia, Joseph
• Primary Examiner(s): Ward; John A
• Application Number:
  US12/210,836
• Time in Patent Office: 960 Days
• Field of Search: 362/217.02, 362/217.03, 362/217.04, 362/217.05, 362/235, 362/237, 362/241, 362/242, 362/243, 362/247, 362/249.02, 362/431
• US Class Current: 362/241
• CPC Class Codes: F21S 2/005 of modular construction
• CPC Class Codes: F21S 8/06 by suspension
• CPC Class Codes: F21S 8/088 with lighting device mounted on top of the standard, e.g. for pedestrian zones
• CPC Class Codes: F21V 11/02 using parallel laminae or strips, e.g. of Venetian-blind type F21V11/06 takes precedence
• 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 15/015 Devices for covering joints between adjacent lighting devices; End coverings
• CPC Class Codes: F21V 21/005 for several lighting devices in an end-to-end arrangement, i.e. light tracks
• CPC Class Codes: F21V 21/116 Fixing lighting devices to arms or standards F21V21/002 takes precedence
• CPC Class Codes: F21V 23/026 Fastening of transformers or ballasts
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/763 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21W 2131/105 of arenas or the like
• 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 luminaire is provided with a housing having an attachment element and a LED mounting element. A plurality of LEDs are also provided and are supported by the LED mounting element of the housing. A plurality of reflectors are positioned proximal to the plurality of LEDs and reflect light emitted by the LEDs toward an illumination surface.

Claims

1. An LED based multi-component ground lighting luminaire, comprising:

at least one housing having a first wall portion, a second wall portion, and a vertically extending LED mounting surface extending vertically upward with respect to a lower illumination area;

a housing attachment portion designed for coupling to a support surface;

whereby said first wall portion and said second wall portion extend rearward from said LED mounting surface to said housing attachment portion;

a plurality of LEDs coupled to said LED mounting surface, each of said LEDs oriented to emit a central axis of light output in a light output direction generally away from a corresponding mounting location on said LED mounting surface;

a plurality of reflectors coupled to said housing positioned and configured to reflect a majority of light output from said plurality of LEDs toward said illumination area lying below said plurality of vertically extending LEDs.

2. The LED based multi-component ground lighting luminaire of claim 1 wherein each of said reflectors is a louver reflector configured to reflect at least fifty percent of a full width half maximum of each of said LEDs.

3. The LED based multi-component ground lighting luminaire of claim 2 wherein each of said louver reflectors aligns with at least one row of LEDs on said LED mounting surface.

4. The LED based multi-component ground lighting luminaire of claim 1 wherein said first wall portion, second wall portion, said LED mounting surface and housing attachment portion form an internal airflow channel extending vertically along said luminaire.

5. The LED based multi-component ground lighting luminaire of claim 4 wherein said LED mounting surface has a plurality of cooling fins extending rearward into said internal airflow channel.

6. The LED based multi-component ground lighting luminaire of claim 1 wherein said housing attachment portion is interchangeable with a plurality of configurations.

7. The LED based multi-component ground lighting luminaire of claim 6 wherein said housing attachment portion is concave for attachment to a support pole.

8. The LED based multi-component ground lighting luminaire of claim 6 wherein said housing attachment portion is flat for affixation to a flat surface.

9. The LED based multi-component ground lighting luminaire of claim 1 wherein said housing forms an internal air flow chimney.

10. The LED based multi-component ground lighting luminaire of claim 9 further comprising a plurality of cooling fins extending rearward from said LED mounting surface into said chimney.

11. A vertically extending LED based multi-component ground lighting luminaire, comprising:

a vertically extending luminaire housing having a first wall portion, a second wall portion, a LED mounting surface extending between said first wall portion and said second wall portion, an attachment element extending between said first wall portion and said second wall portion, a first opening proximate a first end of said housing and a second opening proximate a second end of said housing;

an elongated shaft extending within said housing and connecting said first opening to said second opening;

a plurality of rows of LEDs coupled to said LED mounting surface substantially in a first plane and configured to emit a light output;

each of said rows of LEDs oriented to direct a central axis of said light output away from said first plane;

a plurality of reflectors, each of said reflectors coupled to said housing and positioned to reflect light output from at least one of said plurality of LED rows and direct said reflected light toward an illumination plane lying substantially perpendicular to said first plane.

12. The vertically extending LED based multi-component ground lighting luminaire of claim 11 wherein said attachment element is contoured for affixation to a support pole.

13. The vertically extending LED based multi-component ground lighting luminaire of claim 11 wherein said first wall portion of said housing and said second wall portion of said housing extend from said attachment element of said housing at ninety degree angles with respect to one another.

14. The vertically extending LED based multi-component ground lighting luminaire of claim 11 wherein said attachment element is contoured for affixation around approximately ninety degrees of a support pole.

15. The vertically extending LED based multi-component ground lighting luminaire of claim 14 wherein said attachment element is concave.

16. A vertically extending modular luminaire for use with LEDs, comprising:

a housing mounted in a direction extending vertically from a first plane generally representing the ground;

said housing have a first side element, a second side element, an interchangeable rear attachment element and a forward LED mounting element;

said rear attachment element and said forward LED mounting element interposed between said first side element and said second side element;

a plurality of LEDs mountable on said LED mounting element;

wherein said interchangeable rear attachment element has one of a plurality of mounting surface shapes.

17. The vertically extending modular luminaire for use with LEDs of claim 16 wherein said interchangeable attachment element has a rear concave surface for vertical mounting to a pole support.

18. The vertically extending modular luminaire for use with LEDs of claim 16 wherein said interchangeable attachment element has a rear channeled surface.

19. The vertically extending modular luminaire for use with LEDs of claim 16 wherein said interchangeable attachment element has a flat mounting surface for mounting to a garage ceiling surface.

20. The vertically extending modular luminaire for use with LEDs of claim 16 wherein said first side element, said second side element, said rear attachment element and said forward mounting element form an internal chimney, wherein said housing is vertically mounted relative to the ground to allow air to flow through said internal chimney thereby cooling said LEDs.

21. The vertically extending modular luminaire for use with LEDs of claim 16 further comprising a plurality of fins extending from said mounting surface and into said chimney, wherein said fins are in thermal transfer relationship with said plurality of LEDs.