US 7,597,456 B2Granted

Light emitting diode replacement lamp

AssigneeTechnology Assessment Group Inc.

InventorsAnthony Catalano, Daniel Harrison

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Abstract

The invention is a replacement for a conventional incandescent or halogen light bulb. Besides providing regular illumination, it has advantages over a conventional bulb while maintaining the bulb's decorative function, such as visual effects associated with the bulb's envelope or shade. The invention comprises a connector equivalent to a standard light bulb base, at least one light emitting diode (LED), and a driving circuit hosted on a module such as a printed circuit board and adapting the supply voltage to the requirements of the LED. Compensation for the effects of temperature may be included. The invention may also include other circuitry to support various enhanced features such as novel decorative features or control over the brightness, color, or other characteristics—all potentially varying over time or being controlled remotely.

Claims17

Dependent claims

A method of providing illumination capable of replacing the illumination from incandescent light bulbs, including halogen light bulbs, comprising steps of

providing a standard light bulb power connector the same as that as for a conventional incandescent light bulb which the device replaces, the power connector adapted to fit into at least one of many standard light bulb power sockets, the power connector having input power contacts for receiving an input voltage from a power source;
electrically connecting a circuit module to the input power contacts of the power connector;
electrically connecting at least one LED to an output of the module;
physically connecting each LED to the module;
physically connecting the module to the power connector;
fitting the module and all LEDs into the volume envelope of the incandescent light bulb;
converting the input voltage to a voltage required by the LEDs;
providing light from the LEDs to produce decorative illumination in addition to general, non-decorative illumination.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/868,406Filed 5 Oct 2007 · division
Priority: 4 Nov 2003
Published: US 2008/0024070 A131 Jan 2008
Granted: 6 Oct 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification29 codes

F21V 23/045
Activated by means of a sensor, e.g. motion or photodetectors: the sensor receiving a signal from a remote controller
F21K 9/233
Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with…
F21K 9/65
Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction: specially adapted for…
F21V 5/007
Refractors for light sources: array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one…

Family

Application60/517,130Us provisional application · filed 4 Nov 2003
Application10/893,727Parent of this division · filed 16 Jul 2004
US 2008/0024070 A1Pre-grant publication · published 31 Jan 2008
US 7,296,913 B2Parent of this division
US 2006/0012997 A1Published application
US 7,597,456 B2This patent

From the US filing history. Foreign family members aren’t listed.