Light emitting diode sign lighter
AssigneeCooper Technologies Company
InventorsTimothy Wright, Wei Rong, Gerry Thornton
Life of this patent
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Abstract
A light emitting diode (LED) sign lighter is positioned to illuminate a sign. One or more LED modules on the LED sign lighter are directed toward different portions of the sign. Each LED module is configured with a reflector or over-optic to control the angle of the light emitted toward the sign. Each LED module includes an array of LEDs. The configuration of each LED module within the LED sign lighter helps to reduce the build-up of environmental contaminants on the LED module. The center section of the LED sign lighter includes a compartment for housing electrical components to power the LED modules. Heat sink fins are oriented along the back side of the LED sign lighter to provide thermal efficiency for the LED modules.
Claims15
A light emitting diode (LED) light fixture, comprising:
- a housing comprising:
- a front side comprising a plurality of platforms, each platform configured to accept one or more LED modules;
- and
- a back side comprising a heat sink;
- a plurality of LED modules, each LED module disposed on a corresponding platform, wherein each LED module on its corresponding platform is directed toward a different portion of a surface to be illuminated;
- and
- an LED driver electrically coupled to at least one of the LED modules for controlling a plurality of LEDs on the LED module;
- wherein a first LED module on a first of the plurality of platforms comprises a first reflector assembly, the first reflector assembly comprising a plurality of reflectors, wherein each reflector distributes light from the first LED module in a first pattern;
- wherein a second LED module on a second of the plurality of platforms comprises a second reflector assembly, the second reflector assembly comprising a second plurality of reflectors, wherein each reflector distributes light from the second LED module in a second pattern different than the first pattern, wherein the first pattern is wider than the second pattern.
A housing for a light fixture, comprising:
- a front side;
- an opposing back side;
- a first light emitting diode (LED) module affixed to the front side of the housing along a top portion thereof, wherein the first LED module is directed to illuminate a bottom portion of a surface;
- a second LED module affixed to the front side of the housing along a middle portion thereof and generally below the first LED module, wherein the second LED module emits light that is directed to illuminate a middle portion of a surface;
- a third LED module affixed to the front side of the housing along a bottom portion thereof and generally below the first and second LED modules, wherein the third LED module emits light that is directed to illuminate a top portion of a surface;
- and
- a heat sink comprising a plurality of heat fins disposed along the back side of the housing to provide thermal efficiency for the first, second, and third LED modules.
A light emitting diode (LED) light fixture, comprising:
- a housing comprising a front side and an opposing back side;
- six LED modules attached to the front side of the housing;
- an LED driver electrically coupled to the six LED modules;
- and
- at least one heat sink disposed along the back side of the housing and in thermal communication with at least a portion of the LED modules,
- wherein a first and a second of the six LED modules are coupled to a top portion of the housing and are configured to illuminate a bottom portion of a surface;
- wherein a third and a fourth of the six LED modules are coupled to a middle portion of the housing generally below the first and second LED modules and are configured to illuminate a middle portion of the surface;
- and
- wherein a fifth and a sixth of the six LED modules are coupled to a bottom portion of the housing and configured to illuminate a top portion of the surface.
Dependencies are inferred from the claim text.