Patents by Inventor Wai Kwan Chan
Wai Kwan Chan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11800613Abstract: Lighting devices and methods utilize multiple independently controllable groups of solid state light emitters of different dominant wavelengths, with operation of the emitter groups being automatically adjusted by processor(s) to provide desired illumination. Operation of the emitter groups may be further affected by sensors and/or user input commands (e.g., sound patterns, gesture patterns, or signal transmission). Operation may be adjusted to compensate for presence, absence, intensity, and/or color point of ambient or incident light. Presence of five or more groups of solid state light emitters provide desirable luminous flux, color point, correlated color temperature (CCT), color rendering index (CRI), CRI R9, and luminous efficacy characteristics of aggregate emissions over a wide range of CCT values, and may permit adjustment of vividness (e.g., relative gamut) and/or melatonin suppression characteristics for a selected color point or CCT.Type: GrantFiled: September 3, 2021Date of Patent: October 24, 2023Assignee: IDEAL Industries Lighting LLCInventors: Antony Paul van de Ven, Chin Wah Ho, Wai Kwan Chan, Charles M. Swoboda
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Publication number: 20210400781Abstract: Lighting devices and methods utilize multiple independently controllable groups of solid state light emitters of different dominant wavelengths, with operation of the emitter groups being automatically adjusted by processor(s) to provide desired illumination. Operation of the emitter groups may be further affected by sensors and/or user input commands (e.g., sound patterns, gesture patterns, or signal transmission). Operation may be adjusted to compensate for presence, absence, intensity, and/or color point of ambient or incident light. Presence of five or more groups of solid state light emitters provide desirable luminous flux, color point, correlated color temperature (CCT), color rendering index (CRI), CRI R9, and luminous efficacy characteristics of aggregate emissions over a wide range of CCT values, and may permit adjustment of vividness (e.g., relative gamut) and/or melatonin suppression characteristics for a selected color point or CCT.Type: ApplicationFiled: September 3, 2021Publication date: December 23, 2021Inventors: Antony Paul van de Ven, Chin Wah Ho, Wai Kwan Chan, Charles M. Swoboda
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Patent number: 11116054Abstract: Lighting devices and methods utilize multiple independently controllable groups of solid state light emitters of different dominant wavelengths, with operation of the emitter groups being automatically adjusted by processor(s) to provide desired illumination. Operation of the emitter groups may be further affected by sensors and/or user input commands (e.g., sound patterns, gesture patterns, or signal transmission). Operation may be adjusted to compensate for presence, absence, intensity, and/or color point of ambient or incident light. Presence of five or more groups of solid state light emitters provide desirable luminous flux, color point, correlated color temperature (CCT), color rendering index (CRI), CRI R9, and luminous efficacy characteristics of aggregate emissions over a wide range of CCT values, and may permit adjustment of vividness (e.g., relative gamut) and/or melatonin suppression characteristics for a selected color point or CCT.Type: GrantFiled: June 10, 2019Date of Patent: September 7, 2021Assignee: IDEAL Industries Lighting LLCInventors: Antony Paul van de Ven, Chin Wah Ho, Wai Kwan Chan, Charles M. Swoboda
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Publication number: 20210129548Abstract: A replaceable print component is disclosed that comprises first and second electrodes, and a circuit electrically connected between the first and second electrodes to vary an electrical property of the circuit with a frequency component within a selected frequency range to indicate a parameter of a part of the circuit in response to a stimulus.Type: ApplicationFiled: October 18, 2017Publication date: May 6, 2021Inventors: Kevin Rourke, John Rossi, Erick Blane Kinas, James Mannion, Wai Kwan Chan
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Patent number: 10900653Abstract: Solid state light engines are disclosed that emit a bright, non-symmetrical emission pattern, with a relatively high luminous flux and from a relatively small area. The light engines can be used in many different types and sizes of light sources, with some embodiments providing a light quantity, quality and distribution similar to conventional J-type Halogen light sources. The light engines are arranged with integral power supplies and heat management features that allow for the engines to provide high emission intensities while generating significantly less heat at the light source. This can result in significantly higher efficiency and greater life space. In some embodiments, the light can perform similarly to a halogen J-type Lamp 80 mm light tube, while generating similar or greater amounts of light. The light engines according to the present invention provide the capability to be used in low profile light fixtures.Type: GrantFiled: November 1, 2013Date of Patent: January 26, 2021Assignee: Cree Hong Kong LimitedInventors: Antony Van De Ven, Wai Kwan Chan, Chin Wah Ho
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Patent number: 10436432Abstract: Aluminum high bay lighting fixtures a primary housing; at least one secondary housing partially surrounding a primary housing; a plurality of light emitting elements in thermal contact with the primary housing; a heat spreader plate in thermal contact with the light emitting elements and the primary and secondary housings. At least one of the primary and secondary housings include openings to help dissipate heat from the light source and/or allow at least some of the light from the light emitting elements to be outputted in a direction opposite the main light emitting direction. The shortest distance from a distal end of the primary housing to the light sources is greater than the shortest distance from a distal end of the secondary housing to the light sources.Type: GrantFiled: March 15, 2013Date of Patent: October 8, 2019Assignee: CREE, INC.Inventors: Antony Paul Van de Ven, Wai Kwan Chan, Gauss Ho Ching So, Chin Wah Ho
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Publication number: 20190297704Abstract: Lighting devices and methods utilize multiple independently controllable groups of solid state light emitters of different dominant wavelengths, with operation of the emitter groups being automatically adjusted by processor(s) to provide desired illumination. Operation of the emitter groups may be further affected by sensors and/or user input commands (e.g., sound patterns, gesture patterns, or signal transmission). Operation may be adjusted to compensate for presence, absence, intensity, and/or color point of ambient or incident light. Presence of five or more groups of solid state light emitters provide desirable luminous flux, color point, correlated color temperature (CCT), color rendering index (CRI), CRI R9, and luminous efficacy characteristics of aggregate emissions over a wide range of CCT values, and may permit adjustment of vividness (e.g., relative gamut) and/or melatonin suppression characteristics for a selected color point or CCT.Type: ApplicationFiled: June 10, 2019Publication date: September 26, 2019Applicant: IDEAL INDUSTRIES LIGHTING LLCInventors: Antony Paul van de Ven, Chin Wah Ho, Wai Kwan Chan, Charles M. Swoboda
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Patent number: 10412809Abstract: Lighting devices and methods utilize multiple independently controllable groups of solid state light emitters of different dominant wavelengths, with operation of the emitter groups being automatically adjusted by processor(s) to provide desired illumination. Operation of the emitter groups may be further affected by sensors and/or user input commands (e.g., sound patterns, gesture patterns, or signal transmission). Operation may be adjusted to compensate for presence, absence, intensity, and/or color point of ambient or incident light. Presence of five or more groups of solid state light emitters provide desirable luminous flux, color point, correlated color temperature (CCT), color rendering index (CRI), CRI R9, and luminous efficacy characteristics of aggregate emissions over a wide range of CCT values, and may permit adjustment of vividness (e.g., relative gamut) and/or melatonin suppression characteristics for a selected color point or CCT.Type: GrantFiled: February 1, 2018Date of Patent: September 10, 2019Assignee: CREE, INC.Inventors: Antony Paul van de Ven, Chin Wah Ho, Wai Kwan Chan, Charles M. Swoboda
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Patent number: 10321537Abstract: Lighting devices and methods utilize multiple independently controllable groups of solid state light emitters of different dominant wavelengths, with operation of the emitter groups being automatically adjusted by processor(s) to provide desired illumination. Operation of the emitter groups may be further affected by sensors and/or user input commands (e.g., sound patterns, gesture patterns, or signal transmission). Operation may be adjusted to compensate for presence, absence, intensity, and/or color point of ambient or incident light. Presence of five or more groups of solid state light emitters provide desirable luminous flux, color point, correlated color temperature (CCT), color rendering index (CRI), CRI R9, and luminous efficacy characteristics of aggregate emissions over a wide range of CCT values, and may permit adjustment of vividness (e.g., relative gamut) and/or melatonin suppression characteristics for a selected color point or CCT.Type: GrantFiled: February 1, 2018Date of Patent: June 11, 2019Assignee: CREE, INC.Inventors: Antony Paul van de Ven, Chin Wah Ho, Wai Kwan Chan, Charles M. Swoboda
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Publication number: 20180160504Abstract: Lighting devices and methods utilize multiple independently controllable groups of solid state light emitters of different dominant wavelengths, with operation of the emitter groups being automatically adjusted by processor(s) to provide desired illumination. Operation of the emitter groups may be further affected by sensors and/or user input commands (e.g., sound patterns, gesture patterns, or signal transmission). Operation may be adjusted to compensate for presence, absence, intensity, and/or color point of ambient or incident light. Presence of five or more groups of solid state light emitters provide desirable luminous flux, color point, correlated color temperature (CCT), color rendering index (CRI), CRI R9, and luminous efficacy characteristics of aggregate emissions over a wide range of CCT values, and may permit adjustment of vividness (e.g., relative gamut) and/or melatonin suppression characteristics for a selected color point or CCT.Type: ApplicationFiled: February 1, 2018Publication date: June 7, 2018Applicant: CREE, INC.Inventors: Antony Paul van de Ven, Chin Wah Ho, Wai Kwan Chan, Charles M. Swoboda
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Patent number: 9900957Abstract: Lighting devices and methods utilize multiple independently controllable groups of solid state light emitters of different dominant wavelengths, with operation of the emitter groups being automatically adjusted by processor(s) to provide desired illumination. Operation of the emitter groups may be further affected by sensors and/or user input commands (e.g., sound patterns, gesture patterns, or signal transmission). Operation may be adjusted to compensate for presence, absence, intensity, and/or color point of ambient or incident light. Presence of five or more groups of solid state light emitters provide desirable luminous flux, color point, correlated color temperature (CCT), color rendering index (CRI), CRI R9, and luminous efficacy characteristics of aggregate emissions over a wide range of CCT values, and may permit adjustment of vividness (e.g., relative gamut) and/or melatonin suppression characteristics for a selected color point or CCT.Type: GrantFiled: June 10, 2016Date of Patent: February 20, 2018Assignee: Cree, Inc.Inventors: Antony Paul van de Ven, Chin Wah Ho, Wai Kwan Chan, Charles M. Swoboda
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Publication number: 20160366746Abstract: Lighting devices and methods utilize multiple independently controllable groups of solid state light emitters of different dominant wavelengths, with operation of the emitter groups being automatically adjusted by processor(s) to provide desired illumination. Operation of the emitter groups may be further affected by sensors and/or user input commands (e.g., sound patterns, gesture patterns, or signal transmission). Operation may be adjusted to compensate for presence, absence, intensity, and/or color point of ambient or incident light. Presence of five or more groups of solid state light emitters provide desirable luminous flux, color point, correlated color temperature (CCT), color rendering index (CRI), CRI R9, and luminous efficacy characteristics of aggregate emissions over a wide range of CCT values, and may permit adjustment of vividness (e.g., relative gamut) and/or melatonin suppression characteristics for a selected color point or CCT.Type: ApplicationFiled: June 10, 2016Publication date: December 15, 2016Inventors: Antony Paul van de Ven, Chin Wah Ho, Wai Kwan Chan, Charles M. Swoboda
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Patent number: 9464801Abstract: A lighting device comprising at least a first light source and at least one heat sink element that is removable, that comprises an first inner region and an first outer region, that is identical in shape to another heat sink element, that is in thermal contact with a trim element, that is stacked, that is in thermal contact with at least a first portion of a first surface of the trim element, that has a cross-sectional area at a first distance from an axis of a trim element that is larger than at a shorter distance, and/or that maintains a junction temperature of a lighting device at or below a recommended junction temperature. Also, a lighting device comprising at least a first light source, a trim element, a driver sub-assembly and a spacer element positioned between the trim element and the driver sub-assembly. Also, methods of dissipating heat.Type: GrantFiled: September 25, 2009Date of Patent: October 11, 2016Assignee: Cree, Inc.Inventors: Antony Paul Van De Ven, Paul Kenneth Pickard, James Michael Lay, Wai Kwan Chan
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Patent number: 9458999Abstract: A lighting device comprising a trim element, an electrical connector and at least one solid state light emitter, the lighting device weighing less than one kilogram. If current of about 12 watts (or in some cases about 15 watts, or in some cases not more than about 15 watts) is supplied to the electrical connector, the at least one solid state light emitter will illuminate so that the lighting device will emit white light of at least 500 lumens. Also, a lighting device that weighs less than one kilogram and can generate white light of at least 500 lumens using a current of not more than about 15 watts. Also, a lighting device for mounting in a recessed housing, comprising a unitary structure trim element that conducts heat away from at least one solid state light emitter and dissipates at least some of the heat outside of the recessed housing.Type: GrantFiled: March 14, 2014Date of Patent: October 4, 2016Assignee: Cree, Inc.Inventors: Antony Paul Van De Ven, Wai Kwan Chan, Ho Chin Wah
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Patent number: 9285103Abstract: A light engine housing comprising a mixing chamber element, a driver chamber element and/or a connection element, one or more of which is removable. A light engine comprising (1) a light engine housing and (2) a mixing chamber module and/or a driver module removably attached to and/or positioned in the light engine housing. Also, a light engine comprising (1) a light engine housing and a mixing chamber module and/or a driver module. Also, a solid state light engine comprising a light engine housing comprising at least a first connection element.Type: GrantFiled: November 19, 2009Date of Patent: March 15, 2016Assignee: Cree, Inc.Inventors: Antony Paul Van De Ven, Charles M. Swoboda, Wai Kwan Chan
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Patent number: 9068719Abstract: A light engine housing comprising a mixing chamber element, a driver chamber element and/or a connection element, one or more of which is removable. A light engine comprising (1) a light engine housing and (2) a mixing chamber module and/or a driver module removably attached to and/or positioned in the light engine housing. Also, a light engine comprising (1) a light engine housing and a mixing chamber module and/or a driver module. Also, a solid state light engine comprising a light engine housing comprising at least a first connection element.Type: GrantFiled: September 25, 2009Date of Patent: June 30, 2015Assignee: Cree, Inc.Inventors: Antony Paul Van De Ven, Charles M. Swoboda, Wai Kwan Chan
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Publication number: 20150124437Abstract: Solid state light engines are disclosed that emit a bright, non-symmetrical emission pattern, with a relatively high luminous flux and from a relatively small area. The light engines can be used in many different types and sizes of light sources, with some embodiments providing a light quantity, quality and distribution similar to conventional J-type Halogen light sources. The light engines are arranged with integral power supplies and heat management features that allow for the engines to provide high emission intensities while generating significantly less heat at the light source. This can result in significantly higher efficiency and greater life space. In some embodiments, the light can perform similarly to a halogen J-type Lamp 80 mm light tube, while generating similar or greater amounts of light. The light engines according to the present invention provide the capability to be used in low profile light fixtures.Type: ApplicationFiled: November 1, 2013Publication date: May 7, 2015Applicant: CREE HONG KONG LIMITEDInventors: ANTONY VAN DE VEN, WAI KWAN CHAN, CHIN WAH HO
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Publication number: 20140268745Abstract: The present invention relates to different embodiments of high bay lighting fixtures comprising many improved features, such as the ability to dissipate heat from a light source in a non-traditional manner. One such example is the elimination of a traditional heat sink by placing housings and/or a heat spreader plate in thermal contact with the light emitting elements. By doing so, the housings and/or heat spreader plate can dissipate heat from the light emitting elements and spread it throughout the lighting fixture. Different embodiments also help dissipate heat from the light source by spreading out the light emitting elements. Other embodiments improve heat dissipation by using air slots, so that heat can more easily escape from the lighting fixture. Still another example of dissipating heat from the light source can be to use heat fins.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Inventors: Antony Paul Van de Ven, Wai Kwan Chan, Gauss Ho Ching So, Chin Wah Ho
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Patent number: 8803414Abstract: A lighting device comprising a solid state light emitter and a light mixing element, in which at least ten of light emitted by the emitter that enters the mixing element is reflected within the mixing element, and the mixing element is not larger than 16 mm. Also, a lighting device comprising an emitter and a mixing element comprising first and second regions. Also, a lighting device comprising a light emitter and a mixing element, in which a light exit region of the mixing element has a surface area between about 50% to about 300% of a surface area of a light entrance region of the mixing element. Also, a lighting device comprising a light emitter, a mixing element and a light output shaping element which defines an exit aperture having a dimension that is at least three times a largest dimension of the first light mixing element.Type: GrantFiled: May 7, 2012Date of Patent: August 12, 2014Assignee: Cree, Inc.Inventors: Antony Paul Van De Ven, Wai Kwan Chan, Chin Wah Ho, Gerald H. Negley, Dong Lu, Paul Kenneth Pickard
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Patent number: D721845Type: GrantFiled: October 21, 2013Date of Patent: January 27, 2015Assignee: Cree Hong Kong LimitedInventors: Nelson Man Hoi Lui, Wai Kwan Chan, Chi Hoi Mung