Low profile light and accessory kit for the same

• US 9,739,470 B2
• Filed: 09/22/2014
• Issued: 08/22/2017
• Est. Priority Date: 10/05/2009
• Status: Active Grant

• Current Assignee: Lighting Science Group Corporation (Pegasus Capital Advisors, L.P.)
• Original Assignee: Lighting Science Group Corporation (Pegasus Capital Advisors, L.P.)
• Inventors: Boomgaarden, Mark Penley, Balestracci, Michael, LeClair, Rick, Sun, Wei, Henderson, David, Sullivan, Shane
• Primary Examiner(s): Alavi, Ali
• Application Number:
  US14/492,348
• Publication Number:
  US 20150092421A1
• Time in Patent Office: 1,065 Days
• Field of Search: 362294, 362547
• CPC Class Codes: F21K 9/20 Light sources comprising attachment means
• CPC Class Codes: F21K 9/235 Details of bases or caps, i.e. the parts that connect the light source to a fitting; Arrangement of components within bases or caps F21K9/238 takes precedence
• CPC Class Codes: F21K 9/238 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21K 9/62 using mixing chambers, e.g. housings with reflective walls
• CPC Class Codes: F21K 9/64 using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
• CPC Class Codes: F21K 9/69 Details of refractors forming part of the light source
• CPC Class Codes: F21S 8/026 intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
• CPC Class Codes: F21S 8/033 the surface being a wall or like vertical structure, e.g. building facade
• 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 17/007 with provision for shipment or storage
• CPC Class Codes: F21V 21/02 Wall, ceiling, or floor bases; Fixing pendants or arms to the bases F21V21/08 takes precedence; bases for movable standing lamps F21V21/06
• CPC Class Codes: F21V 21/04 Recessed bases
• CPC Class Codes: F21V 21/047 Mounting arrangements with fastening means engaging the inner surface of a hole in a ceiling or wall, e.g. for solid walls or for blind holes
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508
• CPC Class Codes: F21V 23/002 Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
• CPC Class Codes: F21V 23/02 the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
• CPC Class Codes: F21V 23/026 Fastening of transformers or ballasts
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 29/503 of light sources cooling arrangements structurally associated with gas-discharge or vapour-discharge lamps H01J61/52; cooling arrangements structurally associated with electric incandescent lamps H01K1/58; cooling arrangements structurally associated with light-emitting diodes H01L33/64
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/71 : using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
• CPC Class Codes: F21V 29/713 : in direct thermal and mechanical contact of each other to form a single system
• CPC Class Codes: F21V 29/773 : the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 29/777 : the planes containing the fins or blades having directions perpendicular to the light emitting axis
• CPC Class Codes: F21V 7/0066 : specially adapted to cooperate with point like light sources; specially adapted to cooperate with light sources the shape of which is unspecified F21V7/16 - F21V7/30 take precedence
• CPC Class Codes: F21V 7/04 : Optical design
• CPC Class Codes: F21Y 2101/00 : Point-like light sources
• 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 includes a light source having a plurality of light emitting diodes (LEDs), a heat spreader, and a substantially ring-shaped trim plate. The heat spreader is disposed between and in thermal communication with the light source and the trim plate such that the heat spreader facilitates transfer of heat from the LEDs to the trim plate. The trim plate is structurally configured and disposed for dissipating heat generated by the light source. The trim plate has an outer dimension that is larger than: an opening defined by a nominally sized can light fixture; and, an opening defined by a nominally sized electrical junction box.

Claims

1. A luminaire, comprising:

a light source comprising a plurality of light emitting diodes (LEDs);

a heat spreader;

a substantially ring-shaped trim plate;

the heat spreader being disposed between and in thermal communication with the light source and the trim plate such that the heat spreader facilitates transfer of heat from the LEDs to the trim plate;

the trim plate being structurally configured and disposed for dissipating heat generated by the light source; and

the trim plate having an outer dimension that is larger than;

an opening defined by a nominally sized can light fixture; and

, an opening defined by a nominally sized electrical junction box.

2. The luminaire of claim 1, wherein:

the heat spreader and the trim plate are integrally formed as a single one-piece base such that a heat flow path between the heat spreader and the trim plate is continuous and uninterrupted.

3. The luminaire of claim 1, further comprising:

a power conditioner structurally configured and disposed to receive AC voltage from an electrical supply and to provide DC voltage for the plurality of LEDs;

wherein the power conditioner is disposed, structurally configured and sized to fit at least partially within an interior space of the nominally sized can light fixture; and

, the nominally sized electrical junction box.

4. The luminaire of claim 3, wherein:

the power conditioner is disposed, structurally configured and sized to fit completely within an interior space of the nominally sized can light fixture.

5. The luminaire of claim 3, wherein:

the power conditioner is disposed, structurally configured and sized to fit completely within an interior space of the nominally sized electrical junction box.

6. The luminaire of claim 3, wherein:

the power conditioner comprises an electronic circuit board having electronic components configured to receive the AC voltage from the electrical supply line and to provide the DC voltage to the plurality of LEDs.

7. The luminaire of claim 1, wherein:

the trim plate is structurally configured to be disposed completely external of the can light fixture and the electrical junction box.

8. The luminaire of claim 1, further comprising:

an outer optic disposed in optical communication with the plurality of LEDs;

wherein the trim plate and the outer optic, in combination, are structurally configured and disposed to;

cover an opening defined by the nominally sized can light fixture; and

, cover an opening defined by the nominally sized electrical junction box.

9. The luminaire of claim 1, wherein:

the trim plate is structurally configured and disposed to sit on an outer surface of a ceiling or a wall when the luminaire is installed in a user installation.

10. The luminaire of claim 1, further comprising:

a power conditioner structurally configured and disposed to receive AC voltage from an electrical supply and to provide DC voltage to the plurality of LEDs;

wherein the power conditioner comprises an electronic circuit board having electronic components configured to receive the AC voltage from the electrical supply line and to provide the DC voltage to the plurality of LEDs.

11. A luminaire, comprising:

a light source comprising a plurality of light emitting diodes (LEDs);

a single one-piece base comprising both a heat spreader and a substantially ring-shaped trim plate such that a heat flow path between the heat spreader and the trim plate is continuous and uninterrupted, the heat spreader being disposed between and in thermal communication with the light source and the trim plate such that the heat spreader facilitates transfer of heat from the LEDs to the trim plate, the trim plate being structurally configured and disposed for dissipating heat generated by the light source;

a power conditioner structurally configured and disposed to receive AC voltage from an electrical supply and to provide DC voltage for the plurality of LEDs, the power conditioner being disposed, structurally configured and sized to fit at least partially within an interior space of;

a nominally sized can light fixture; and

, a nominally sized electrical junction box.

12. The luminaire of claim 11, wherein:

the trim plate has an outer dimension that is larger than;

an opening defined by the nominally sized can light fixture; and

, an opening defined by the nominally sized electrical junction box.

13. The luminaire of claim 11, wherein:

the trim plate is structurally configured to be disposed completely external of the can light fixture and the electrical junction box.

14. The luminaire of claim 11, further comprising:

an outer optic disposed in optical communication with the plurality of LEDs.

15. The luminaire of claim 11, wherein:

the power conditioner is disposed, structurally configured and sized to fit completely within an interior space of the nominally sized can light fixture.

16. The luminaire of claim 11, wherein:

the power conditioner is disposed, structurally configured and sized to fit completely within an interior space of the nominally sized electrical junction box.