Lighting fixture with recessed baffle trim unit
AssigneeCordelia Lighting, Inc.
InventorsKanghong Zhang, Dan Dix
Life of this patent
Estimating the term…
Abstract
A recessed lighting fixture providing illumination from a light source including a plurality of light emitting diodes (LEDs) placed within a cavity of a planar surface, such as a ceiling, wall, or shower. The fixture comprises a baffle integrated with a low profile heat sink that is used to draw heat out of the fixture and communicate that heat to a trim ring of the fixture for dissipation of the heat in the room so that higher intensity light sources can be used. Improved grounding of the recessed trim unit to the recessed housing is provided with combination support and grounding springs. One embodiment of the light source is fixed in position while a second embodiment is gimbal mounted for aiming the light produced by the fixture.
Claims20
A recessed lighting fixture located in an opening of a surface, the surface having an outer side and an inner side, the lighting fixture comprising:
- a circular trim ring including attachment springs;
- a lighting trim unit assembled to the trim ring, the trim unit disposed at the opening on the outer side of the surface, wherein the trim unit includes:
- a trim top having at least one of a circular flat plate only and a circular flat plate including a circular wall;
- a light source that emits light disposed on the trim top to emit light toward the outer side of the surface;
- a cup shaped baffle having a first end oriented proximate to the outer side and a second end located proximate to the inner side opposite the first end, the baffle having a wall surrounding the light source at the second end and a lip of the wall engaging the trim top, and having a frusto-conical portion at the first end, wherein the light emitted from the light source reflects against the frusto-conical portion toward the outer side of the surface;
- a low profile heat sink disposed along the surrounding wall of the baffle along an exterior thereof, wherein the heat sink draws heat out of the light source.
A recessed lighting fixture located in an opening in a ceiling, the ceiling having an outer side and an inner side, the lighting fixture comprising:
- a circular trim ring including attachment springs;
- a lighting trim unit assembled to the trim ring to enable two axes of rotation relative to the trim ring, the trim unit disposed at the opening on the outer side of the ceiling, wherein the trim unit includes:
- a trim top having at least one of a circular flat plate only and a circular flat plate including a circular wall;
- an LED array that emits light disposed on the trim top to emit light toward the outer side of the ceiling;
- a cup shaped baffle having a first end oriented proximate to the outer side and a second end located proximate to the inner side opposite the first end, the baffle having a wall surrounding the LED array at the second end and an edge of the wall engaging the trim top, and having a frusto-conical portion at the first end, wherein the light emitted from the LED array reflects against the frusto-conical portion toward the outer side of the ceiling;
- and
- a low profile heat sink disposed along the surrounding wall of the baffle along an exterior thereof, wherein the heat sink draws heat out of the LED array.
A recessed lighting fixture located in an opening in a ceiling, the ceiling having an outer side and an inner side, the lighting fixture comprising:
- a circular trim ring including attachment springs;
- a lighting trim unit assembled to the trim ring, the trim unit disposed at the opening on the outer side of the ceiling;
- wherein the trim unit includes:
- a trim top having a circular flat plate shape;
- an LED array that emits light disposed on the circular flat plate top to emit light toward the outer side of the ceiling;
- a cup shaped baffle having a first end oriented proximate to the outer side and a second end located proximate to the inner side opposite the first end, the baffle having a wall surrounding the light source at the second end and a lip of the wall engaging the trim top, and having a frusto-conical portion at the first end, wherein the light emitted from the LED array reflects against the frusto-conical portion toward the outer side of the ceiling;
- and
- a low profile heat sink disposed along the surrounding wall of the baffle along an exterior thereof, wherein the heat sink draws heat out of the LED array.
Dependencies are inferred from the claim text.