LED light fixture

• US 7,914,193 B2
• Filed: 06/07/2010
• Issued: 03/29/2011
• Est. Priority Date: 02/15/2008
• Status: Active Grant

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Lunera Lighting, Incorporated
• Inventors: Walsh, Mark J., Peifer, Donald A.
• Primary Examiner(s): Sember; Thomas M
• Application Number:
  US12/795,149
• Publication Number:
  US 20100277910A1
• Time in Patent Office: 295 Days
• Field of Search: 362/602, 362/612, 362/613, 362/632, 362/633, 362/634, 362/147, 362/148, 362/150, 362/404, 362/249.02, 362/249.05, 362/249.06
• US Class Current: 362/612
• 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: F21S 8/04 intended only for mounting on a ceiling or the like overhead structures F21S8/02 takes precedence; details of ceiling bases F21V21/03
• CPC Class Codes: F21V 2200/20 of light guides of a generally planar shape
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G02B 6/0021 for housing at least a part of the light source, e.g. by forming holes or recesses
• CPC Class Codes: G02B 6/0068 Arrangements of plural sources, e.g. multi-colour light sources
• CPC Class Codes: G02B 6/0073 Light emitting diode [LED]
• CPC Class Codes: G02B 6/0083 Details of electrical connections of light sources to drivers, circuit boards, or the like
• CPC Class Codes: G02B 6/0085 Means for removing heat created by the light source from the package heat extraction or cooling elements for semiconductor light sources in general H01L33/64
• CPC Class Codes: G02B 6/009 of the light source in the package G02B6/0021 takes precedence

Abstract

An LED light fixture system includes an LED module having a plurality of LEDs attached thereto and directed inwardly toward a secondary optic. The LED module is releasably attached to an interior surface of a peripheral frame. The frame includes an openable portion positioned to allow the LED module to be inserted or removed through an opening created when the openable portion is in an open position. The openable portion is movable from the open position to a closed position and provides an electrical connection between the LEDs attached to the LED module and a source of electrical current when the openable portion is in the closed position.

Claims

1. An LED pendant light fixture comprising:

a plurality of LEDs attached to a peripheral frame and positioned to direct light substantially in a first direction from said frame inwardly toward a secondary optic;

a supporting member connectable to said frame and mountable to horizontally support said frame with a primarily opening facing downwardly and a secondary opening facing upwardly;

said primary opening bounded by outside surfaces of a front side of said frame and located in a second direction substantially orthogonal to said first direction relative to said secondary optic to provide direct lighting from said secondary optic through said primary opening toward an area below said frame when said frame is suspended from said supporting member; and

said secondary opening opposite said primary opening on said frame and located in a third direction substantially orthogonal to said first direction relative to said secondary optic to provide indirect lighting from said secondary optic through said secondary opening toward an area above said frame when said frame is suspended from said supporting member.

2. The fixture of claim 1 further comprising a releasably attachable portion connectable to said frame and dimensioned to cover said secondary opening when said releasably attachable portion is connected to said frame.

3. The fixture of claim 1 wherein said supporting member is operable to suspend said frame horizontally from a ceiling.

4. The fixture of claim 1 wherein said secondary optic is operable to soften light produced from said LED module.

5. The fixture of claim 1 wherein said frame comprises fins extending away from a back side of said frame to provide a heat sink for cooling of the LEDs.

6. The fixture of claim 1 wherein said frame comprises an opening positioned to allow said plurality of LEDs to be inserted or removed through said opening in said frame.

7. The fixture of claim 1 wherein said frame comprises an openable portion positioned to allow said plurality of LEDs to be inserted or removed through an opening created in said frame when said openable portion is in an open position.

8. The fixture of claim 1 wherein said frame comprises an electrical connection between said plurality of LEDs and a source of electrical current.

9. The fixture of claim 1 wherein said frame comprises an opening positioned to allow said plurality of LEDs to be inserted or removed through said opening in said frame, and said frame comprises an electrical connection between said plurality of LEDs and a source of electrical current when said plurality of LEDs is inserted in said opening and disposed in said frame.

10. The fixture of claim 1 wherein said frame comprises an openable portion comprising electrical connectors which engage secondary electrical connectors of said plurality of LEDs when said openable portion is in a closed position.

11. The fixture of claim 1 wherein said plurality of LEDs comprises an LED module.

12. The fixture of claim 1 wherein said plurality of LEDs comprises an LED module removably receivable in a groove of said peripheral frame.

13. The system of claim 1 wherein said plurality of LEDs comprises a plurality of LED modules releasably attached to interior surfaces of said peripheral frame and directed inwardly.

14. The fixture of claim 1 wherein said frame comprises a plurality of mounting holes to allow said frame to be mounted to the supporting member, and a decorative cover releasably attachable to said frame to cover said mounting holes.

15. The fixture of claim 14 wherein said cover comprises a plurality of projections configured to be received in a plurality of holes of said frame to attach said cover to said frame.

16. The fixture of claim 15 wherein said plurality of projections is elastically deformable to allow said projections to be received within said holes to provide a friction fit between said projections and said holes.

17. The fixture of claim 14 wherein said frame comprises a retaining member forming a groove configured to receive said cover.

18. The fixture of claim 14 wherein said cover comprises at least one connecting hole receiving a fastener connecting said cover to said frame and wherein said connecting hole receives a plug for covering said connecting hole.

19. The system of claim 1 wherein said peripheral frame encloses said plurality of LEDs.