LED RETROFIT LIGHT ENGINE
First Claim
1. A light engine comprising:
- a thermally conductive housing including a generally cylindrical wall defining a cavity, the cylindrical wall includes an inner surface and an outer surface, a plurality of ducted passageways being axially disposed on the outer surface;
a light module including at least one light emitting diode (LED) for producing visible light, the light module coupled to a first end of the housing, wherein heat generated by the at least one LED is conducted to the housing;
a current driver circuit arranged on a substrate, the substrate configured to be disposed in the cavity of the housing and electrically coupled to the light module for providing current to the at least one LED; and
a base configured for receiving input power and disposed on a second end of the housing, the base being electrically coupled to the current driver circuit.
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Accused Products
Abstract
A light engine is provided including a thermally conductive housing including a generally cylindrical wall defining a cavity, the cylindrical wall includes an inner surface and an outer surface, a plurality of ducted passageways being axially disposed on the outer surface, a light module including at least one light emitting diode (LED) for producing visible light, the light module coupled to a first end of the housing, wherein heat generated by the at least one LED is conducted to the housing, and a current driver circuit arranged on a substrate, the substrate configured to be disposed in the cavity of the housing and electrically coupled to the light module for providing current to the at least one LED. The ducted passageways aid in convective heat dissipation through a “chimney” type of affect.
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Citations
16 Claims
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1. A light engine comprising:
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a thermally conductive housing including a generally cylindrical wall defining a cavity, the cylindrical wall includes an inner surface and an outer surface, a plurality of ducted passageways being axially disposed on the outer surface; a light module including at least one light emitting diode (LED) for producing visible light, the light module coupled to a first end of the housing, wherein heat generated by the at least one LED is conducted to the housing; a current driver circuit arranged on a substrate, the substrate configured to be disposed in the cavity of the housing and electrically coupled to the light module for providing current to the at least one LED; and a base configured for receiving input power and disposed on a second end of the housing, the base being electrically coupled to the current driver circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A light engine comprising:
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a thermally conductive housing including a generally cylindrical wall defining a cavity, the cylindrical wall includes an inner surface and an outer surface, a plurality of ducted passageways being axially disposed on the outer surface; a light module including at least one light emitting diode (LED) for producing visible light, the light module including a circular, metal core board configured for supporting the at least one LED and contacting at least an outer periphery of the cylindrical wall at the first end of the housing, wherein heat generated by the at least one LED is conducted to the housing; a current driver circuit arranged on a substrate, the substrate configured to be disposed in the cavity of the housing and electrically coupled to the light module for providing current to the at least one LED, the cavity of the housing includes at least two channels for rigidly supporting the substrate; and a base configured for receiving input power and disposed on a second end of the housing, the base being electrically coupled to the current driver circuit. - View Dependent Claims (14, 15, 16)
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Specification