George E Mueller

US Patent:

7255457, Aug 14, 2007

Filed:

Aug 31, 2004

Appl. No.:

10/930345

Inventors:

Alfred D. Ducharme - Orlando FL, US
Frederick M. Morgan - Quincy MA, US
Ihor A. Lys - Milton MA, US
Kevin J. Dowling - Westford MA, US
George G. Mueller - Boston MA, US

Assignee:

Color Kinetics Incorporated - Boston MA

International Classification:

F21V 9/00

US Classification:

362231, 362240, 362255, 362293

Abstract:

Methods and apparatus for generating essentially white light. In one example, a white light generating apparatus comprises at least one first white LED characterized by a first spectrum, and at least one second white LED characterized by a second spectrum, wherein the first spectrum is substantially different than the second spectrum.

US Patent:

7350936, Apr 1, 2008

Filed:

Aug 28, 2006

Appl. No.:

11/467713

Inventors:

Alfred D. Ducharme - Orlando FL, US
Frederick M. Morgan - Quincy MA, US
Ihor A. Lys - Milton MA, US
Kevin J. Dowling - Westford MA, US
George G. Mueller - Boston MA, US

Assignee:

Philips Solid-State Lighting Solutions, Inc. - Burlington MA

International Classification:

F21V 23/02

US Classification:

362231, 362251, 362800

Abstract:

LED-based light bulbs having one or more white LEDs, for replacing/retrofitting conventional light bulbs. An exemplary bulb includes at least one first white LED and at least one power connection having a form configured to engage mechanically and electrically with one of a conventional Edison-mount (screw-type) light bulb socket, a conventional fluorescent tube coupler arrangement, and a conventional halogen MR-16 socket arrangement. The bulb further includes at least one voltage transformation device configured to electrically transform a first voltage applied to the at least one power connection (via the corresponding conventional socket/coupler) to a second voltage that provides operating power to at least the white LED(s). The LED-based light bulb substantially corresponds in shape to a corresponding one of a conventional Edison-mount screw-type light bulb, a conventional fluorescent tube, and a conventional halogen MR-16 light bulb, based on the form of the at least one power connection.

US Patent:

7387405, Jun 17, 2008

Filed:

Nov 10, 2003

Appl. No.:

10/705643

Inventors:

Alfred D. Ducharme - Orlando FL, US
Frederick M. Morgan - Quincy MA, US
Ihor A. Lys - Boston MA, US
Kevin J. Dowling - Westford MA, US
George G. Mueller - Boston MA, US

Assignee:

Philips Solid-State Lighting Solutions, Inc. - Burlington MA

International Classification:

F21V 9/10

US Classification:

362231, 362236, 362276

Abstract:

Lighting apparatus and methods involving a plurality of light-emitting devices configured to emit radiation having at least two different spectra, in which the plurality of light-emitting devices are controlled to produce composite radiation having at least one resulting spectrum that simulates a desired spectrum.

US Patent:

7520634, Apr 21, 2009

Filed:

Dec 30, 2005

Appl. No.:

11/322891

Inventors:

Alfred D. Ducharme - Orlando FL, US
Frederick M. Morgan - Quincy MA, US
Ihor A. Lys - Milton MA, US
Kevin J. Dowling - Westford MA, US
George G. Mueller - Boston MA, US

Assignee:

Philips Solid-State Lighting Solutions, Inc. - Burlington MA

International Classification:

F21V 23/04

US Classification:

362276, 362231, 362800

Abstract:

Methods and apparatus in which at least one first LED generates first radiation having a first spectrum, and at least one second LED generates second radiation having a second spectrum different than the first spectrum. One or more controllers control at least one of the first radiation and the second radiation so as to control at least a color temperature of visible radiation. In one example, one or more sensors monitor at least one characteristic of sample radiation and provide one or more sensor signals to the one or more controllers, which in turn control at least the color temperature of the visible radiation based at least in part on the at least one sensor signal. In various implementations, the sample radiation may be ambient illumination (e. g. , natural-light and/or light from other light sources), may be the visible radiation itself (e. g. , to provide feedback to the one or more controllers), or generally any desired lighting condition to simulate.

US Patent:

20070258240, Nov 8, 2007

Filed:

Jul 20, 2007

Appl. No.:

11/780602

Inventors:

Alfred Ducharme - Orlando FL, US
Frederick Morgan - Canton MA, US
Ihor Lys - Milton MA, US
Kevin Dowling - Westford MA, US
George Mueller - Boston MA, US

Assignee:

Color Kinetics Incorporated - Boston MA

International Classification:

F21V 9/00

US Classification:

362231000

Abstract:

Methods and apparatus for generating essentially white light. In one example, a white light generating apparatus comprises at least one first white LED characterized by a first spectrum, and at least one second white LED characterized by a second spectrum, wherein the first spectrum is substantially different than the second spectrum.