Modular indirect troffer
First Claim
1. A light engine unit, comprising:
- a reflective cup comprising an interior mount surface;
a back reflector proximate to said reflective cup, at least a portion of said back reflector facing said mount surface, said back reflector shaped to define an interior chamber;
at least two elongated legs extending away from said reflective cup toward an edge of said back reflector; and
a plurality of light emitting diodes (LEDs) on the perimeter of said interior mount surface.
4 Assignments
0 Petitions
Accused Products
Abstract
A modular troffer-style lighting fixture. The fixture is particularly well-suited for use with solid state light sources, such as LEDs. Embodiments comprise a pan structure designed to house one or more modular light engine units within a central opening. Each light engine unit includes a reflective cup that can house several light sources on an interior mount surface. The cup is positioned proximate to a back reflector such that its open end faces a portion of the back reflector. The back reflector is shaped to define an interior chamber where light can be mixed and redirected. At least one elongated leg extends away from the reflective cup toward an edge of said back reflector. The leg(s) are used to mount the reflective cup relative to the back reflector and may also be used as a heat sink and/or an additional mount surface for light sources.
177 Citations
42 Claims
-
1. A light engine unit, comprising:
-
a reflective cup comprising an interior mount surface; a back reflector proximate to said reflective cup, at least a portion of said back reflector facing said mount surface, said back reflector shaped to define an interior chamber; at least two elongated legs extending away from said reflective cup toward an edge of said back reflector; and a plurality of light emitting diodes (LEDs) on the perimeter of said interior mount surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21)
-
-
15. A light engine unit, comprising:
-
a reflective cup comprising an interior mount surface; a back reflector proximate to said reflective cup, at least a portion of said back reflector facing said mount surface, said back reflector shaped to define an interior chamber; and at least one elongated leg extending away from said reflective cup toward an edge of said back reflector, said at least one leg comprising a back side mount surface facing said back reflector; and at least one light source on said back side mount surface of said at least one leg.
-
-
16. A light engine unit, comprising:
-
a reflective cup comprising an interior mount surface; a back reflector proximate to said reflective cup, at least a portion of said back reflector facing said mount surface, said back reflector shaped to define an interior chamber; and at least one elongated leg extending away from said reflective cup toward an edge of said back reflector, said at least one leg comprising a back side mount surface facing said back reflector wherein said at least one leg further comprising a diffusive cover over said back side mount surface.
-
-
22. A light fixture, comprising:
-
a pan structure defining a central opening; a light engine unit sized to fit within said central opening, said light engine comprising; a reflective cup comprising an interior mount surface; a back reflector proximate to said reflective cup, at least a portion of said back reflector facing said mount surface, said back reflector shaped to define an interior chamber; a plurality of elongated legs extending away from said reflective cup toward said pan; and a plurality of light emitting diodes (LEDs) on the perimeter of said interior mount surface, said LEDs aimed to emit toward said back reflector; and a control circuit for controlling said LEDs, said control circuit on said interior mount surface. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
-
-
42. A modular light fixture, comprising:
-
a pan structure defining a central opening; and a plurality of light engine units sized to removably mount within said central opening, each of said light engines comprising; a reflective cup comprising an interior mount surface; a back reflector proximate to said reflective cup, at least a portion of said back reflector facing said mount surface, said back reflector shaped to define an interior chamber; at least two elongated legs extending away from said reflective cup toward an edge of said back reflector; and a plurality of light emitting diodes (LEDs) on the perimeter of said interior mount surface.
-
Specification