Universal light emitting diode illumination device and method
First Claim
Patent Images
1. An illumination device comprising:
- at least one solid-state light emitter;
an electrical connector for electrically connecting the at least one solid-state light emitter to a power source and having a shape substantially the same as a shape of an electrical connector for a standard incandescent or halogen bulb;
a driving circuit in electrical communication with the electrical connector and the at least one solid-state light emitter for providing suitable current to the at least one solid-state light emitter; and
at least partially surrounding and extending above the at least one solid-state light emitter, an optical element for directing light emitted by the at least one solid-state light emitter along an emission axis of the illumination device, substantially all of the light emitted by the illumination device being emitted along the emission axis,wherein the illumination device is compact enough to fit within a standard volume envelope of an incandescent or halogen lamp.
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Abstract
Disclosed is a method and apparatus for providing a light emitting diode and driving circuitry integrated into a component module that will retrofit common incandescent lightbulb applications. The disclosed embodiments will perform with high efficiency at a wide operating voltage range with a very small size allowing for the incorporation within the envelope and form of existing lightbulb bases. Therefore, a single universal LED light bulb module can be used to replace the dozens of conventional LED and incandescent lights currently being used. The electronic circuitries used to drive the LEDs are extremely compact and consequently can be incorporated in nearly any standard bulb base.
142 Citations
35 Claims
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1. An illumination device comprising:
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at least one solid-state light emitter; an electrical connector for electrically connecting the at least one solid-state light emitter to a power source and having a shape substantially the same as a shape of an electrical connector for a standard incandescent or halogen bulb; a driving circuit in electrical communication with the electrical connector and the at least one solid-state light emitter for providing suitable current to the at least one solid-state light emitter; and at least partially surrounding and extending above the at least one solid-state light emitter, an optical element for directing light emitted by the at least one solid-state light emitter along an emission axis of the illumination device, substantially all of the light emitted by the illumination device being emitted along the emission axis, wherein the illumination device is compact enough to fit within a standard volume envelope of an incandescent or halogen lamp. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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2. An illumination device comprising:
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at least one solid-state light emitter; an electrical connector for electrically connecting the at least one solid-state light emitter to a power source and having a shape substantially the same as a shape of an electrical connector for a standard incandescent or halogen bulb; a driving circuit in electrical communication with the electrical connector and the at least one solid-state light emitter for providing suitable current to the at least one solid-state light emitter; and at least partially surrounding and extending above the at least one solid-state light emitter, an optical element for directing light emitted by the at least one solid-state light emitter along an emission axis of the illumination device, wherein (i) a shape of the optical element defines a portion of a paraboloid, (ii) the at least one solid-state light emitter is disposed at a focal point of the paraboloid, and (iii) the illumination device is compact enough to fit within a standard volume envelope of an incandescent or halogen lamp. - View Dependent Claims (28, 29)
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11. An illumination device comprising:
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at least one solid-state light emitter, wherein the at least one solid-state light emitter comprises at least one light-emitting diode chip embedded in a transparent lens; an electrical connector for electrically connecting the at least one solid-state light emitter to a power source and having a shape substantially the same as a shape of an electrical connector for a standard incandescent or halogen bulb; a driving circuit in electrical communication with the electrical connector and the at least one solid-state light emitter for providing suitable current to the at least one solid-state light emitter; and at least partially surrounding and extending above the lens of the at least one solid-state light emitter, an optical element for directing light emitted by the at least one solid-state light emitter along an emission axis of the illumination device, wherein the illumination device is compact enough to fit within a standard volume envelope of an incandescent or halogen lamp. - View Dependent Claims (30, 31)
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12. An illumination device comprising:
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at least one solid-state light emitter; an electrical connector for electrically connecting the at least one solid-state light emitter to a power source and having a shape substantially the same as a shape of an electrical connector for a standard incandescent or halogen bulb; a driving circuit in electrical communication with the electrical connector and the at least one solid-state light emitter for providing suitable current to the at least one solid-state light emitter; and at least partially surrounding and extending above the at least one solid-state light emitter, an optical element for directing light emitted by the at least one solid-state light emitter along an emission axis of the illumination device, wherein (i) the illumination device is compact enough to fit within a standard volume envelope of an incandescent or halogen lamp, and (ii) the driving circuit comprises a high-frequency DC-to-DC converter. - View Dependent Claims (32, 33)
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18. An illumination device configured to accept a replaceable lens, the illumination device comprising:
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at least one solid-state light emitter; an electrical connector for electrically connecting the at least one solid-state light emitter to a power source and having a shape substantially the same as a shape of an electrical connector for a standard incandescent or halogen bulb; a driving circuit in electrical communication with the electrical connector and the at least one solid-state light emitter for providing suitable current to the at least one solid-state light emitter; at least partially surrounding and extending above the at least one solid-state light emitter, an optical element for directing light emitted by the at least one solid-state light emitter along an emission axis of the illumination device; and a replaceable lens for altering light emitted from the illumination device, wherein (i) the illumination device is compact enough to fit within a standard volume envelope of an incandescent or halogen lamp, and (ii) the replaceable lens comprises a converging lens. - View Dependent Claims (34, 35)
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Specification