Consolidated troffer
AssigneeCree, Inc.
InventorJohn Durkee
Life of this patent
Estimating the term…
Abstract
A dropped-ceiling lighting system having a reflector positioned in an opening in a grid used to suspend a dropped ceiling, a lighting device including a light source mounted adjacent to the reflector, a structural support securing the lighting device to the grid, and a power source for the lighting device. Also discloses is a dropped-ceiling lighting system comprised of a reflector attached to a plenum barrier positioned in an opening in a grid used to suspend a dropped ceiling, a power source extends from a first edge of the plenum barrier to a second edge of the plenum barrier, and a light source is mounted to the power source.
Claims71
A lighting system comprised of:
- a support element having a reflective surface;
- and
- a luminaire mounted on the support element, said luminaire including
- an LED light source that provides light in a first pattern, and
- a waveguide redirection element that receives the light from the LED light source and redirects the light into a second pattern onto the reflective surface, wherein:
- the reflective surface occupies a first area;
- the LED light source occupies a second area;
- and
- the first area is greater than the second area.
A lighting system, comprising:
- a reflective surface having an edge;
- an LED light engine comprising at least one LED and a waveguide that receives the light generated from said at least one LED and directs the light from an emission surface towards the reflective surface, the LED light engine being adjacent to the reflective surface;
- said emission surface being spaced from said reflective surface and adapted to direct light uniformly across at least a portion of the surface of the reflective surface laterally spaced from said LED light engine at an incident angle of no greater than about 10 degrees from the emission surface to the edge of the reflective surface.
A lighting system kit, comprising;
- a support element having a reflective surface;
- and
- an LED light engine mounted on the support element including
- an LED light source that provides light in a first pattern, and
- a waveguide element that receives the light from the LED light source and redirects the light into a second pattern onto a portion of the reflective surface laterally spaced from the waveguide element.
A dropped-ceiling lighting system comprised of:
- a reflector positioned in an opening in a grid used to suspend a dropped ceiling;
- a lighting device mounted adjacent to the reflector;
- said lighting device including a light source that provides light in a first pattern, and a redirection element that receives the light from the LED light source and redirects the light into a second pattern onto the reflector;
- a structural support securing the lighting device to the grid;
- and
- a power source for the lighting device.
A dropped-ceiling lighting system comprised of:
- a reflector attached to a plenum barrier positioned in an opening in a grid used to suspend a dropped ceiling;
- a power source extends from a first edge of the plenum barrier to a second edge of the plenum barrier;
- a lighting device that includes a light source is mounted to the power source;
- and
- said light source provides light in a first pattern, and a redirection element that receives the light from the LED light source and redirects the light into a second pattern onto the reflector;
Dependencies are inferred from the claim text.