Patents Assigned to Philips Solid-State Lighting Solutions, Inc.
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Patent number: 7520634Abstract: 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.Type: GrantFiled: December 30, 2005Date of Patent: April 21, 2009Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Alfred D. Ducharme, Frederick M. Morgan, Ihor A. Lys, Kevin J. Dowling, George G. Mueller
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Patent number: 7515128Abstract: Methods and apparatus for generating two or more different colors or color temperatures of light over a significant range of different saturations or different color temperatures, in which luminance compensation is provided. In one example, generated light is compensated, at least in part, for the “Helmholtz-Kohlrausch” (HK) effect, which models the perception of different brightnesses for different colors or color temperatures, notwithstanding identical luminances. In another example, lighting apparatus including one or more LEDs to generate two or more different colors or color temperatures of light are configured to provide luminance compensation so as to mitigate, at least in part, the HK effect.Type: GrantFiled: December 20, 2005Date of Patent: April 7, 2009Assignee: Philips Solid-State Lighting Solutions, Inc.Inventor: Kevin J. Dowling
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Patent number: 7511437Abstract: Methods and apparatus for high power factor power transfer to a load using a single switching stage. In exemplary implementations, a controllable variable power may be delivered to a load using a single switching stage while maintaining high power factor, in some cases without requiring any feedback information relating to the load conditions (i.e., without monitoring load voltage and/or current) to control normal switching operations in the single switching stage, and without requiring regulation of load voltage and/or load current. In one example, a single stage high power factor driver is used to control power delivery to an LED-based light source.Type: GrantFiled: May 8, 2006Date of Patent: March 31, 2009Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Ihor A. Lys, Igor Shikh, Mark David Rabiner
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Patent number: 7495671Abstract: Methods and systems are provided for lighting control, including a lighting system manager, a light show composer, a light system engine, and related facilities for the convenient authoring and execution of lighting shows using semiconductor-based illumination units.Type: GrantFiled: April 20, 2007Date of Patent: February 24, 2009Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Brian Chemel, John Warwick, Frederick M. Morgan, Michael K. Blackwell, Kevin McCormick, Ihor A. Lys
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Patent number: 7482764Abstract: Light sources for illumination of liquids in a variety of environments. In one example, multi-color LED-based light sources are adapted to engage mechanically and electrically with various types of conventional light sockets, including light sockets conventionally found in a pool or spa environment. In another example, a light fixture for a pool or spa is particularly adapted to engage mechanically and electrically with a wedge type socket supported by a pool or spa. In another example, a light fixture for illumination of liquids includes an encapsulant to protect the light fixture from moisture, due to the characteristically humid environment encountered in liquid illumination applications.Type: GrantFiled: October 25, 2001Date of Patent: January 27, 2009Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Frederick M. Morgan, Ihor A. Lys, George G. Mueller, Kevin J. Dowling
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Patent number: 7482565Abstract: A system and method for calibrating light output from an LED is provided. The system includes a support on which an LED is positioned, a photosensor to measure the light output from the LED, and means for calibrating and adjusting the light output of the LED. Calibration is accomplished by measuring the light output from the LED, comparing such output against a reference value, and adjusting the measured output against the reference value.Type: GrantFiled: February 22, 2005Date of Patent: January 27, 2009Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Frederick M. Morgan, Ihor A. Lys
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Patent number: 7462997Abstract: Apparatus and systems including one or more first LEDs, each first LED configured to generate first radiation having a first spectrum, and one or more second LEDs, each second LED configured to generate second radiation having a second spectrum different than the first spectrum. A diffuser is employed to blend the first radiation and the second radiation, when generated, so as to provide a uniform color of light having a visible spectrum based on a combination of the first spectrum and the second spectrum. One or more controllers are configured to control the first LED(s) and the second LED(s) such that visible light provided by the diffuser is perceived as one or more colors. In different aspects, the apparatus/systems may be configured to generate white light and/or multicolor light, may be formed to resemble conventional light bulbs, and may be arranged as a linear chain of nodes.Type: GrantFiled: July 10, 2007Date of Patent: December 9, 2008Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: George G. Mueller, Ihor A. Lys
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Patent number: 7459864Abstract: Methods and apparatus for providing and controlling power to at least some types of loads. In one example, a controlled predetermined power is provided to a load without requiring any feedback information from the load (i.e., without monitoring a load voltage and/or load current). In another example, a “feed-forward” power driver for an LED-based light source combines the functionality of a DC-DC converter and a light source controller, and is configured to control the intensity of light generated by the light source based on modulating the average power delivered to the light source in a given time period, without monitoring and/or regulating the voltage or current provided to the light source. In various examples, significantly streamlined circuits having fewer components, higher overall power efficiencies, and smaller space requirements are realized.Type: GrantFiled: March 14, 2005Date of Patent: December 2, 2008Assignee: Philips Solid-State Lighting Solutions, Inc.Inventor: Ihor A. Lys
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Publication number: 20080285271Abstract: LED-based lighting fixtures suitable for general illumination in surface-mount or suspended installations, in which heat dissipation properties of the fixtures are significantly improved by decreasing thermal resistance between LED junctions and the ambient air. In various examples, improved heat dissipation is accomplished by increasing a surface area of one or more heat-dissipating elements proximate a trajectory of air flow through the fixture. In one aspect, various structural components of the fixtures are particularly configured to create and maintain a “chimney effect” within the fixture, resulting in a high air-flow rate, natural convection cooling system capable of efficiently dissipating the waste heat from the fixture without active cooling.Type: ApplicationFiled: May 2, 2008Publication date: November 20, 2008Applicant: PHILIPS SOLID-STATE LIGHTING SOLUTIONS, INC.Inventors: Brian Roberge, Ron Roberts, Igor Shikh, Ihor Lys, Brad Koerner, Tomas Mollnow
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Patent number: 7453217Abstract: Methods and apparatus for providing illumination in a marketplace. In one example, radiation comprising variable color light is generated using a plurality of LEDs. One or more articles in the marketplace are illuminated with the generated radiation, and the spectral content of the generated radiation is controllably varied over a period of time so that a customer of the marketplace perceives a change in color and/or an illusion of motion associated with the article(s) due to a selective color interaction between the generated radiation and the article(s). Examples of marketplaces include, but are not limited to, consumer environments, work environments, sporting environments, entertainment environments, retail establishments, restaurants, museums, art galleries and the like.Type: GrantFiled: November 16, 2004Date of Patent: November 18, 2008Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Ihor A. Lys, George G. Mueller, Michael K. Blackwell
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Publication number: 20080278092Abstract: Power control methods and apparatus in which a switching power supply provides power factor correction and an output voltage to a load via control of a single switch, without requiring any feedback information associated with the load. The single switch may be controlled without monitoring either the output voltage across the load or a current drawn by the load, and/or without regulating either the output voltage across the load or the current drawn by the load. The RMS value of an A.C. input voltage to the switching power supply may be varied via a conventional A.C. dimmer (e.g., using either a voltage amplitude or duty cycle control technique) to in turn control the output voltage. The switching power supply may comprise a flyback converter configuration, a buck converter configuration, or a boost converter configuration, and the load may comprise an LED-based light source.Type: ApplicationFiled: May 1, 2008Publication date: November 13, 2008Applicant: PHILIPS SOLID-STATE LIGHTING SOLUTIONS, INC.Inventors: Ihor Lys, Igor Shikh
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Publication number: 20080278941Abstract: LED-based lighting apparatus and assembly methods in which mechanical and/or thermal coupling between respective components is accomplished via a transfer of force from one component to another. In one example, a multiple-LED assembly is disposed in thermal communication with a heat sink that forms part of a housing. A primary optical element situated within a pressure-transfer member is disposed above and optically aligned with each LED. A shared secondary optical facility forming another part of the housing is disposed above and compressively coupled to the pressure-transfer members. A force exerted by the second optical facility is transferred via the pressure-transfer members so as to press the LED assembly toward the heat sink, thereby facilitating heat transfer. In one aspect, the LED assembly is secured in the housing without the need for adhesives. In another aspect, the secondary optical facility does not directly exert pressure onto any primary optical element, thereby reducing optical misalignment.Type: ApplicationFiled: May 2, 2008Publication date: November 13, 2008Applicant: PHILIPS SOLID-STATE LIGHTING SOLUTIONS, INC.Inventors: Derek Logan, Colin Piepgras
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Patent number: 7449847Abstract: In one example, a lighting apparatus comprises a processor wherein the processor is configured to control a color-changing lighting effect generated by the lighting apparatus; wherein the processor is further configured to monitor an operating power source; and wherein the processor is further configured to synchronize the color-changing lighting effect in coordination with a parameter of the operating power source.Type: GrantFiled: August 11, 2004Date of Patent: November 11, 2008Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Eric K. Schanberger, Kevin J. Dowling
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Patent number: 7427840Abstract: Methods and apparatus for controlling illumination. In one example, one or more multi-color light sources are controlled based on one or more interruptions of power supplied to the light source(s). In another example, a pool or spa is illuminated by one or more multi-color light sources that may be employed as individually and independently controllable devices that may be controlled based on one or more interruptions in power. In another example, the selection of a particular illumination program for such light sources (e.g., by one or more interruptions in power) is indicated to a user via the radiation generated by the light sources.Type: GrantFiled: May 14, 2004Date of Patent: September 23, 2008Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Frederick M. Morgan, Ihor A. Lys, George G. Mueller, Kevin J. Dowling, Timothy Holmes, John Warwick
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Patent number: 7387405Abstract: 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.Type: GrantFiled: November 10, 2003Date of Patent: June 17, 2008Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Alfred D. Ducharme, Frederick M. Morgan, Ihor A. Lys, Kevin J. Dowling, George G. Mueller
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Publication number: 20080140231Abstract: Systems and methods for authoring and playing back lighting programs that define a plurality of states for a plurality of lights. The lighting programs may be stored in a data format that represents a data stream capable of controlling the plurality of lights, wherein the data stream is transferred to the plurality of lights without interpolating any of the data included therein to determine one of the plurality of states for the plurality of lights.Type: ApplicationFiled: February 12, 2008Publication date: June 12, 2008Applicant: Philips Solid-State Lighting Solutions, Inc.Inventors: Michael K. Blackwell, Ihor A. Lys, John Warwick, Frederick M. Morgan, Adriana Mincheva
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Patent number: 7385359Abstract: An embodiment of this invention relates to an intelligent lighting device that can receive signals and change the illumination conditions as a result of the received signals. The lighting device can change hue, saturation, and brightness as a response to received signals. One example of using such a lighting device is to display particular colors as a response to certain events. Among others, embodiments may include vehicle lighting systems, an information cube, a back lighting system for a display panel, and an indicator of a condition of a package.Type: GrantFiled: November 20, 2001Date of Patent: June 10, 2008Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Kevin Dowling, Frederick Morgan, Brian Chemel, Adriana Mincheva, Ihor A. Lys
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Patent number: 7364488Abstract: Methods and apparatus for enhancing an inflatable device. In one example, a first component adapted to generate at least one of light and sound is coupled to a second component that is adapted to facilitate insertion into an inflatable device. The first component may be an LED-based light source configured to generate single or multi-colored light in an interior space of the inflatable device once inserted into the inflatable device. The second component may be particularly configured with one or more valves or seals to facilitate a transfer of a substance (e.g., an inflating substance) into the inflatable device once the first and second components are inserted into the inflatable device. The second component also may be configured to conveniently facilitate an effective seal between the second component and the inflatable device.Type: GrantFiled: April 24, 2003Date of Patent: April 29, 2008Assignee: Philips Solid State Lighting Solutions, Inc.Inventors: George G. Mueller, Ralph Osterhout, Kevin J. Dowling
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Patent number: 7358679Abstract: Methods and apparatus for providing controllable power via an A.C. power source to LED-based lighting devices having an MR16 configuration. In one example, LED-based MR16 lighting devices may be coupled to A.C. power circuits that are controlled by conventional dimmers (i.e, “A.C. dimmer circuits”). In yet other aspects, one or more parameters relating to the light generated by LED-based light sources (e.g., intensity, color, color temperature, temporal characteristics, etc.) may be conveniently controlled via operation of a conventional A.C. dimmer and/or other signals present on the A.C. power circuit.Type: GrantFiled: March 31, 2005Date of Patent: April 15, 2008Assignee: Philips Solid-State Lighting Solutions, Inc.Inventors: Ihor A. Lys, Kevin J. Dowling, Frederick M. Morgan
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Patent number: 7358706Abstract: Power factor correction control methods and apparatus based on knowing in advance some information relating to anticipated load conditions (e.g., a desired power to be provided to a load). Based on “feeding-forward” known information about anticipated load conditions, power factor correction control loop response is significantly improved, particularly in situations in which the load power traverses a wide range in a short time period (e.g., load full off to load full on, or vice versa). As a result of improved control loop stability, smaller circuit components may be employed based on more predictable expectations for signal values, thereby reducing the cost and/or size of the implemented circuits. In one example, a processor controls both a feed-forward power factor correction apparatus and a feed-forward power driver for an LED-based light source to provide an efficient source of radiation using significantly streamlined circuits having fewer components and smaller space requirements.Type: GrantFiled: March 14, 2005Date of Patent: April 15, 2008Assignee: Philips Solid-State Lighting Solutions, Inc.Inventor: Ihor A. Lys