LED-BASED LIGHT BULB
2 Assignments
0 Petitions
Accused Products
Abstract
A light source (10) comprises a light engine (16), a base (24), a power conversion circuit (30) and an enclosure (22). The light engine (16) comprises at least one LED (12) disposed on a platform (14). The platform (14) is adapted to directly mate with the base (24) which a standard incandescent bulb light base. Phosphor (44) receives the light generated by the at least one LED (12) and converts it to visible light. The enclosure (22) has a shape of a standard incandescent lamp.
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Citations
49 Claims
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1-23. -23. (canceled)
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24. A light source comprising:
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a light engine for generating light, the light engine including; a platform, and at least one LED disposed on the platform; an enclosure surrounding a light generating area of the light engine; a base including an active cooling unit for dissipating thermal energy away from the at least one LED; and a conversion circuit for supplying electric power to the light engine. - View Dependent Claims (25, 26, 27, 28)
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29. A LED lamp comprising:
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a light engine including a platform and at least one LED disposed on the platform; a base onto which the light engine is mounted; an enclosure surrounding a light generating area of the light engine; a power module for supplying electric power to the light engine; and an active cooling unit mounted to the base for dissipating thermal energy away from the at least one LED. - View Dependent Claims (30, 31, 32, 33, 34)
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35. A light source comprising:
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a bulb-shaped enclosure; a base adjacent a first end of said enclosure; a light engine comprising a printed circuit board adjacent said first end of said enclosure;
said printed circuit board including at least one LED directing light toward a second end of said enclosure; anda means for active cooling of said light engine. - View Dependent Claims (36)
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37. A light source comprising:
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a light engine comprising a printed circuit and including at least one LED; a light transparent or translucent enclosure receiving light generated by the light engine; a heat sink in thermal communication with the light engine comprising i) a slug portion and ii) a plurality of radially extending fins disposed about the outer periphery of the slug portion and external to the enclosure to transfer heat from the light engine into the air; a base for supporting the light engine, enclosure and heat sink in operative arrangement; and a conversion circuit housed in at least a portion of the base for supplying electric power to the light engine. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A light source comprising:
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a light engine including a platform, and at least one LED disposed on the platform; an enclosure fitted over a light generating area of the light engine; a conversion circuit for supplying electric power to the light engine; a base connected to the enclosure for housing at least a portion of the conversion circuit; a heat sink in thermal communication with the platform for conducting thermal energy away from the at least one LED and having a plurality of fins disposed around a periphery of the heat sink and external to the enclosure.
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49. A lamp comprising:
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an enclosure comprising a light translucent or light transparent material; an electrical connector configured to connect to an external power source; at least one LED disposed adjacent the enclosure; a conversion circuit at least partially housed in the connector and in electrical communication with the connector for supplying electrical power to the at least one LED; a heat sink in thermal communication with the at least one LED for conducting thermal energy away from the at least one LED and having a plurality of tins disposed around a periphery of the heat sink and outside of the enclosure.
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Specification