Patents by Inventor Zongjie Yuan
Zongjie Yuan 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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Publication number: 20230417382Abstract: Lighting devices having optical waveguides for controlled light distribution are provided. A lighting device includes a housing, a light emitter disposed in the housing, and a waveguide at least partially disposed in an opening of the housing. The waveguide includes a light input surface defining coupling features, wherein the light emitter is disposed adjacent the light input surface and emits light into the coupling features. The waveguide further includes a light transmission portion disposed between the light input surface and a light extraction portion, wherein light from the light emitter received at the light input surface propagates through the light transmission portion toward the light extraction portion. The waveguide further includes the light extraction portion, which comprises at least one light redirection feature and at least one light extraction feature that cooperate to generate a controlled light pattern exiting the lighting device.Type: ApplicationFiled: April 17, 2023Publication date: December 28, 2023Inventors: Kurt Wilcox, Jin Hong Lim, Curt Progl, Steve Wilcenski, Zongjie Yuan
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Patent number: 11675120Abstract: Embodiments of the present disclosure generally relate to light fixtures and luminaires configured to emit light. According to one aspect, an optical waveguide includes a first waveguide portion and a second waveguide portion adjacent to and separate from the first waveguide portion. The waveguide portions include light coupling portions that are at least partially aligned and adapted to receive light developed by a light source. The first waveguide portion further has a first major surface with light direction features and a second major surface opposite the first major surface. The second waveguide portion further has a third major surface proximate the second major surface with an air gap disposed therebetween and a fourth major surface opposite the third major surface wherein the fourth major surface includes a cavity extending therein.Type: GrantFiled: June 14, 2021Date of Patent: June 13, 2023Assignee: IDEAL Industries Lighting LLCInventors: Kurt S. Wilcox, Christopher D. Strom, Jin Hong Lim, Zongjie Yuan, Mark Boomgaarden, Randall Levy Bernard, John W. Durkee, Craig D. Raleigh, Joseph P. Chobot
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Patent number: 11655950Abstract: Lighting devices having optical waveguides for controlled light distribution are provided. A lighting device includes a housing, a light emitter disposed in the housing, and a waveguide at least partially disposed in an opening of the housing. The waveguide includes a light input surface defining coupling features, wherein the light emitter is disposed adjacent the light input surface and emits light into the coupling features. The waveguide further includes a light transmission portion disposed between the light input surface and a light extraction portion, wherein light from the light emitter received at the light input surface propagates through the light transmission portion toward the light extraction portion. The waveguide further includes the light extraction portion, which comprises at least one light redirection feature and at least one light extraction feature that cooperate to generate a controlled light pattern exiting the lighting device.Type: GrantFiled: February 15, 2022Date of Patent: May 23, 2023Assignee: IDEAL INDUSTRIES LIGHTING LLCInventors: Kurt Wilcox, Jin Hong Lim, Curt Progl, Steve Wilcenski, Zongjie Yuan
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Patent number: 11644157Abstract: According to one aspect, a waveguide comprises a waveguide body having a coupling cavity defined by a coupling feature disposed within the waveguide body. A plug member comprises a first portion disposed in the coupling cavity and an outer surface substantially conforming to the coupling feature and a second portion extending from the first portion into the coupling cavity. The second portion includes a reflective surface adapted to direct light in the coupling cavity into the waveguide body.Type: GrantFiled: September 29, 2020Date of Patent: May 9, 2023Assignee: IDEAL Industries Lighting LLCInventors: Bernd P. Keller, Eric J. Tarsa, Zongjie Yuan, Kurt S. Wilcox
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Patent number: 11508892Abstract: This specification discloses heatsinks comprising a continuous sheet of thermally conductive material folded into a structure comprising a plurality of fins defined by bends in the sheet and arranged to transfer heat to surrounding air. The sheet may be further folded to form a planar surface defined by one or more bends in the sheet and on which one or more LEDs may be mounted. Optionally, the sheet may be further folded to partially enclose the fins within a tunnel formed by side walls defined by bends in the sheet.Type: GrantFiled: April 27, 2020Date of Patent: November 22, 2022Assignee: Lumileds LLCInventors: Jeroen Den Breejen, Zongjie Yuan, Ronan Letoquin
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Patent number: 11408572Abstract: A lighting device comprises a body of optically transmissive material exhibiting a total internal reflection characteristic, the body further comprising a light input surface for receiving light, a light extraction portion spaced from the light input surface, a light transmission portion disposed between the light input surface and the light extraction portion, and at least one light deflection surface for deflecting light toward the light extraction portion. Further in accordance with this aspect the light extraction portion comprises a first extraction surface for extracting light deflected by the at least one light deflection surface out of the body and a second extraction surface for extracting light other than light deflected by the at least one light deflection surface out of the body.Type: GrantFiled: April 24, 2019Date of Patent: August 9, 2022Assignee: IDEAL INDUSTRIES LIGHTING LLCInventors: Jin Hong Lim, Curt Progl, Kurt Wilcox, Steve Wilcenski, Zongjie Yuan
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Publication number: 20220170603Abstract: Lighting devices having optical waveguides for controlled light distribution are provided. A lighting device includes a housing, a light emitter disposed in the housing, and a waveguide at least partially disposed in an opening of the housing. The waveguide includes a light input surface defining coupling features, wherein the light emitter is disposed adjacent the light input surface and emits light into the coupling features. The waveguide further includes a light transmission portion disposed between the light input surface and a light extraction portion, wherein light from the light emitter received at the light input surface propagates through the light transmission portion toward the light extraction portion. The waveguide further includes the light extraction portion, which comprises at least one light redirection feature and at least one light extraction feature that cooperate to generate a controlled light pattern exiting the lighting device.Type: ApplicationFiled: February 15, 2022Publication date: June 2, 2022Inventors: Kurt Wilcox, Rick Rothenberger, Jin Hong Lim, Curt Progl, Steve Wilcenski, Zongjie Yuan
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Publication number: 20210311246Abstract: Embodiments of the present disclosure generally relate to light fixtures and luminaires configured to emit light. According to one aspect, an optical waveguide includes a first waveguide portion and a second waveguide portion adjacent to and separate from the first waveguide portion. The waveguide portions include light coupling portions that are at least partially aligned and adapted to receive light developed by a light source. The first waveguide portion further has a first major surface with light direction features and a second major surface opposite the first major surface. The second waveguide portion further has a third major surface proximate the second major surface with an air gap disposed therebetween and a fourth major surface opposite the third major surface wherein the fourth major surface includes a cavity extending therein.Type: ApplicationFiled: June 14, 2021Publication date: October 7, 2021Inventors: Kurt S. Wilcox, Christopher D. Strom, Jin Hong Lim, Zongjie Yuan, Mark Boomgaarden, Randall Levy Bernard, John W. Durkee, Craig D. Raleigh, Joseph P. Chobot
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Patent number: 11099317Abstract: According to one aspect, an optical waveguide includes a first waveguide portion and a second waveguide portion adjacent to and separate from the first waveguide portion. The waveguide portions include light coupling portions that are at least partially aligned and adapted to receive light developed by a light source. The first waveguide portion further has a first major surface with light direction features and a second major surface opposite the first major surface. The second waveguide portion further has a third major surface proximate the second major surface with an air gap disposed therebetween and a fourth major surface opposite the third major surface wherein the fourth major surface includes a cavity extending therein.Type: GrantFiled: August 13, 2019Date of Patent: August 24, 2021Assignee: IDEAL Industries Lighting LLCInventors: Zongjie Yuan, Kurt S. Wilcox, Christopher D. Strom
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Patent number: 11070493Abstract: A luminaire having a waveguide suspended beneath a mounting element, the waveguide has a first surface proximal to the mounting element, a second surface distal to the mounting element, and an edge between the first and the second surfaces. At least one cavity extends into the waveguide from the first surface to the second surface. A LED component is coupled to the waveguide so as to emit light into the cavity. LED support structures are also disclosed.Type: GrantFiled: February 15, 2019Date of Patent: July 20, 2021Assignee: IDEAL Industries Lighting LLCInventors: Eric J. Tarsa, Hormoz Benjamin, Bernd P. Keller, Kurt S. Wilcox, Zongjie Yuan
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Patent number: 10938744Abstract: A luminaire having a waveguide suspended beneath a mounting element, the waveguide has a first surface proximal to the mounting element, a second surface distal to the mounting element, and an edge between the first and the second surfaces. At least one cavity extends into the waveguide from the first surface to the second surface. A LED component is coupled to the waveguide so as to emit light into the cavity. LED support structures are also disclosed.Type: GrantFiled: February 15, 2019Date of Patent: March 2, 2021Assignee: Ideal Industries Lighting LLCInventors: Eric J. Tarsa, Hormoz Benjamin, Bernd P. Keller, Kurt S. Wilcox, Zongjie Yuan
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Publication number: 20210010646Abstract: According to one aspect, a waveguide comprises a waveguide body having a coupling cavity defined by a coupling feature disposed within the waveguide body. A plug member comprises a first portion disposed in the coupling cavity and an outer surface substantially conforming to the coupling feature and a second portion extending from the first portion into the coupling cavity. The second portion includes a reflective surface adapted to direct light in the coupling cavity into the waveguide body.Type: ApplicationFiled: September 29, 2020Publication date: January 14, 2021Inventors: Bernd P. Keller, Eric J. Tarsa, Zongjie Yuan, Kurt S. Wilcox
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Publication number: 20200343427Abstract: This specification discloses heatsinks comprising a continuous sheet of thermally conductive material folded into a structure comprising a plurality of fins defined by bends in the sheet and arranged to transfer heat to surrounding air. The sheet may be further folded to form a planar surface defined by one or more bends in the sheet and on which one or more LEDs may be mounted. Optionally, the sheet may be further folded to partially enclose the fins within a tunnel formed by side walls defined by bends in the sheet.Type: ApplicationFiled: April 27, 2020Publication date: October 29, 2020Applicant: LUMILEDS LLCInventors: Jeroen DEN BREEJEN, Zongjie YUAN, Ronan LETOQUIN
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Patent number: 10808891Abstract: According to one aspect, a waveguide comprises a waveguide body having a coupling cavity defined by a coupling feature disposed within the waveguide body. A plug member comprises a first portion disposed in the coupling cavity and an outer surface substantially conforming to the coupling feature and a second portion extending from the first portion into the coupling cavity. The second portion includes a reflective surface adapted to direct light in the coupling cavity into the waveguide body.Type: GrantFiled: June 3, 2019Date of Patent: October 20, 2020Assignee: Ideal Industries Lighting LLCInventors: Bernd P. Keller, Eric J. Tarsa, Zongjie Yuan, Kurt S. Wilcox
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Publication number: 20200003947Abstract: According to one aspect, an optical waveguide includes a first waveguide portion and a second waveguide portion adjacent to and separate from the first waveguide portion. The waveguide portions include light coupling portions that are at least partially aligned and adapted to receive light developed by a light source. The first waveguide portion further has a first major surface with light direction features and a second major surface opposite the first major surface. The second waveguide portion further has a third major surface proximate the second major surface with an air gap disposed therebetween and a fourth major surface opposite the third major surface wherein the fourth major surface includes a cavity extending therein.Type: ApplicationFiled: August 13, 2019Publication date: January 2, 2020Inventors: Zongjie Yuan, Kurt S. Wilcox, Christopher D. Strom
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Patent number: 10436969Abstract: An optical waveguide includes a body of optically transmissive material having a width substantially greater than an overall thickness thereof. The body of material has a first side, a second side opposite the first side, and a plurality of interior bores extending between the first and second sides each adapted to receive a light emitting diode. Extraction features are disposed on the second side and the extraction features direct light out of at least the first side and at least one extraction feature forms a taper disposed at an outer portion of the body.Type: GrantFiled: March 15, 2013Date of Patent: October 8, 2019Assignee: Ideal Industries Lighting LLCInventors: Zongjie Yuan, Kurt S. Wilcox, Eric J. Tarsa, Fabian Jean-Daniel Rol, James Ibbetson, Bernd P. Keller, Nicholas W. Medendorp, Jr.
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Publication number: 20190301687Abstract: According to one aspect, a waveguide comprises a waveguide body having a coupling cavity defined by a coupling feature disposed within the waveguide body. A plug member comprises a first portion disposed in the coupling cavity and an outer surface substantially conforming to the coupling feature and a second portion extending from the first portion into the coupling cavity. The second portion includes a reflective surface adapted to direct light in the coupling cavity into the waveguide body.Type: ApplicationFiled: June 3, 2019Publication date: October 3, 2019Inventors: Bernd P. Keller, Eric J. Tarsa, Zongjie Yuan, Kurt S. Wilcox
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Patent number: 10422944Abstract: According to one aspect, an optical waveguide includes a first waveguide portion and a second waveguide portion adjacent to and separate from the first waveguide portion. The waveguide portions include light coupling portions that are at least partially aligned and adapted to receive light developed by a light source. The first waveguide portion further has a first major surface with light direction features and a second major surface opposite the first major surface. The second waveguide portion further has a third major surface proximate the second major surface with an air gap disposed therebetween and a fourth major surface opposite the third major surface wherein the fourth major surface includes a cavity extending therein.Type: GrantFiled: May 29, 2015Date of Patent: September 24, 2019Assignee: IDEAL INDUSTRIES LIGHTING LLCInventors: Zongjie Yuan, Kurt S. Wilcox, Christopher D. Strom
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Patent number: 10408986Abstract: An optical waveguide includes a body of optically transmissive material having a width substantially greater than an overall thickness thereof and including a first side, a second side opposite the first side, a central bore extending between the first and second sides and adapted to receive a light emitting diode, and extraction features on the second side. A light diverter extends into the central bore for diverting light into and generally along the width of the body of material. The extraction features direct light out of the first side and wherein at least one extraction feature has an extraction surface dimension transverse to the thickness that is between about 5% and about 75% the overall thickness of the body of material.Type: GrantFiled: February 27, 2017Date of Patent: September 10, 2019Assignee: Ideal Industries Lighting LLCInventors: Zongjie Yuan, Kurt S. Wilcox, Eric J. Tarsa, Fabian Jean-Daniel Rol, James Ibbetson, Bernd P. Keller
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Patent number: D878668Type: GrantFiled: May 5, 2017Date of Patent: March 17, 2020Assignee: Ideal Industries Lighting LLCInventors: Robert Mark Lindsay, Kurt Wilcox, Zongjie Yuan, Rowan Lawson