Patents by Inventor Mark Youmans
Mark Youmans 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: 20240027682Abstract: Luminaires are described herein employing waveguides and associated architectures for dynamic alteration of illuminance distribution patterns. The waveguide includes a light extraction component. The waveguide transmits light from a light source to the light extraction component by total internal reflection (TIR). The light extraction component includes one or more reversibly moveable surfaces for altering illuminance distribution patterns of the luminaire in response to one or more forces applied to the light extraction component by a force application assembly of the luminaire.Type: ApplicationFiled: August 1, 2023Publication date: January 25, 2024Inventors: Eric J. Tarsa, Jean-Claude David Ramey DeSugny, David Stone, Benjamin A. Jacobson, Shawn Patrick Keeney, Claudio Girotto, Theodore Lowes, Chandan Bhat, Mark Youmans
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Patent number: 11719882Abstract: Luminaires are described herein employing waveguides and associated architectures for dynamic alteration of illuminance distribution patterns. The waveguide includes a light extraction component. The waveguide transmits light from a light source to the light extraction component by total internal reflection (TIR). The light extraction component includes one or more reversibly moveable surfaces for altering illuminance distribution patterns of the luminaire in response to one or more forces applied to the light extraction component by a force application assembly of the luminaire.Type: GrantFiled: September 22, 2021Date of Patent: August 8, 2023Assignee: IDEAL Industries Lighting LLCInventors: Eric J. Tarsa, Jean-Claude David Ramey DeSugny, David Stone, Benjamin A. Jacobson, Shawn Patrick Keeney, Claudio Girotto, Theodore Lowes, Chandan Bhat, Mark Youmans
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Patent number: 11290621Abstract: Sensor housings, modules, and luminaires comprising the same are provided. The sensor housings and modules set forth herein have improved heat sinking abilities for dissipating heat from a sensor while simultaneously facilitating thermal isolation of the sensor. Briefly, a sensor housing described herein comprises a cavity for housing a sensor and a heat sink. The heat sink is configured to dissipate heat from the sensor housing and thermally isolate the sensor housing from other heat generating components, such as other portions of a luminaire.Type: GrantFiled: July 22, 2020Date of Patent: March 29, 2022Assignee: IDEAL INDUSTRIES LIGHTING LLCInventors: Mark Youmans, Hormoz Benjamin, Theodore Lowes
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Publication number: 20220003926Abstract: Luminaires are described herein employing waveguides and associated architectures for dynamic alteration of illuminance distribution patterns. The waveguide includes a light extraction component. The waveguide transmits light from a light source to the light extraction component by total internal reflection (TIR). The light extraction component includes one or more reversibly moveable surfaces for altering illuminance distribution patterns of the luminaire in response to one or more forces applied to the light extraction component by a force application assembly of the luminaire.Type: ApplicationFiled: September 22, 2021Publication date: January 6, 2022Inventors: Eric J. Tarsa, Jean-Claude David Ramey de Sugny, David Stone, Benjamin A. Jacobson, Shawn Patrick Keeney, Claudio Girotto, Theodore Lowes, Chandan Bhat, Mark Youmans
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Patent number: 11156764Abstract: In view of delamination and other failure mechanisms, bonded assemblies are described herein comprising one or more reinforcement members reducing deflection of the assemblies under applied flexural loads, wherein the reinforcement members do not materially interfere with the functionality of the bonded assemblies. In one aspect, waveguide assemblies are provided. A waveguide assembly, in some embodiments, comprises a waveguide body and light extraction elements bonded to the waveguide body, wherein at least one reinforcement member is coupled to the waveguide assembly at one or more locations to reduce deflection of the waveguide assembly under an applied flexural load.Type: GrantFiled: June 17, 2016Date of Patent: October 26, 2021Assignee: IDEAL INDUSTRIES LIGHTING LLCInventors: Claudio Girotto, Theodore Lowes, Chandan Bhat, Mark Youmans
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Patent number: 10848650Abstract: Sensor housings, modules, and luminaires comprising the same are provided. The sensor housings and modules set forth herein have improved heat sinking abilities for dissipating heat from a sensor while simultaneously facilitating thermal isolation of the sensor. Briefly, a sensor housing described herein comprises a cavity for housing a sensor and a heat sink. The heat sink is configured to dissipate heat from the sensor housing and thermally isolate the sensor housing from other heat generating components, such as other portions of a luminaire.Type: GrantFiled: October 16, 2017Date of Patent: November 24, 2020Assignee: IDEAL Industries Lighting, LLCInventors: Mark Youmans, Hormoz Benjamin, Theodore Lowes
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Publication number: 20200351420Abstract: Sensor housings, modules, and luminaires comprising the same are provided. The sensor housings and modules set forth herein have improved heat sinking abilities for dissipating heat from a sensor while simultaneously facilitating thermal isolation of the sensor. Briefly, a sensor housing described herein comprises a cavity for housing a sensor and a heat sink. The heat sink is configured to dissipate heat from the sensor housing and thermally isolate the sensor housing from other heat generating components, such as other portions of a luminaire.Type: ApplicationFiled: July 22, 2020Publication date: November 5, 2020Inventors: Mark YOUMANS, Hormoz BENJAMIN, Theodore LOWES
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Patent number: 10690315Abstract: According to one example aspect, a device for venting a luminaire compartment comprises a luminaire compartment disposed between first and second luminaire components and one or more luminaire gaskets maintaining a weather-proof seal about the luminaire compartment. The device further comprises one or more venting tubes traversing the one or more luminaire gaskets such that the one or more venting tubes extend into the luminaire compartment and the one or more venting tubes equalize one or more environmental parameters of the luminaire compartment with one or more environmental parameters of the ambient environment.Type: GrantFiled: July 12, 2018Date of Patent: June 23, 2020Assignee: Ideal Industries Lighting LLCInventors: Theodore D. Lowes, Chandan Bhat, Mark Youmans
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Patent number: 10416377Abstract: A luminaire includes a first waveguide having a first primary light emitting surface directed in a first direction and a first secondary light emitting surface directed in a second direction. A second waveguide having a second primary light emitting surface directed in the second direction and a second secondary light emitting surface directed in the first direction. A first plurality of LEDs are optically coupled to the first waveguide and a second plurality of LEDs are optically coupled to the second waveguide. The first and second waveguides are independently operable. The first and second plurality of LEDs may comprise LED groups where each of the LED groups are independently controllable. The light emission pattern and light properties of the emitted light are controllable.Type: GrantFiled: March 6, 2017Date of Patent: September 17, 2019Assignee: Cree, Inc.Inventors: Claudio Girotto, Eric Tarsa, Nathan Ray Snell, James Ibbetson, Mark Youmans, Theodore D. Lowes, Bernd Keller, Ethan Creasman, Randall Levy Bernard, William L. Dungan
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Publication number: 20190162384Abstract: According to one example aspect, a device for venting a luminaire compartment comprises a luminaire compartment disposed between first and second luminaire components and one or more luminaire gaskets maintaining a weather-proof seal about the luminaire compartment. The device further comprises one or more venting tubes traversing the one or more luminaire gaskets such that the one or more venting tubes extend into the luminaire compartment and the one or more venting tubes equalize one or more environmental parameters of the luminaire compartment with one or more environmental parameters of the ambient environment.Type: ApplicationFiled: July 12, 2018Publication date: May 30, 2019Inventors: Theodore D. Lowes, Chandan Bhat, Mark Youmans
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Publication number: 20190116297Abstract: Sensor housings, modules, and luminaires comprising the same are provided. The sensor housings and modules set forth herein have improved heat sinking abilities for dissipating heat from a sensor while simultaneously facilitating thermal isolation of the sensor. Briefly, a sensor housing described herein comprises a cavity for housing a sensor and a heat sink. The heat sink is configured to dissipate heat from the sensor housing and thermally isolate the sensor housing from other heat generating components, such as other portions of a luminaire.Type: ApplicationFiled: October 16, 2017Publication date: April 18, 2019Inventors: Mark YOUMANS, Hormoz BENJAMIN, Theodore LOWES
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Publication number: 20170363795Abstract: In view of delamination and other failure mechanisms, bonded assemblies are described herein comprising one or more reinforcement members reducing deflection of the assemblies under applied flexural loads, wherein the reinforcement members do not materially interfere with the functionality of the bonded assemblies. In one aspect, waveguide assemblies are provided. A waveguide assembly, in some embodiments, comprises a waveguide body and light extraction elements bonded to the waveguide body, wherein at least one reinforcement member is coupled to the waveguide assembly at one or more locations to reduce deflection of the waveguide assembly under an applied flexural load.Type: ApplicationFiled: June 17, 2016Publication date: December 21, 2017Inventors: Claudio GIROTTO, Theodore LOWES, Chandan BHAT, Mark YOUMANS
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Publication number: 20170322364Abstract: A luminaire includes a first waveguide having a first primary light emitting surface directed in a first direction and a first secondary light emitting surface directed in a second direction. A second waveguide having a second primary light emitting surface directed in the second direction and a second secondary light emitting surface directed in the first direction. A first plurality of LEDs are optically coupled to the first waveguide and a second plurality of LEDs are optically coupled to the second waveguide. The first and second waveguides are independently operable. The first and second plurality of LEDs may comprise LED groups where each of the LED groups are independently controllable.Type: ApplicationFiled: March 6, 2017Publication date: November 9, 2017Inventors: Claudio Girotto, Eric Tarsa, Nathan Ray Snell, James Ibbetson, Mark Youmans, Theodore D. Lowes, Bernd Keller, Ethan Creasman, Randall Levy Bernard, William L. Dungan
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Patent number: 9664369Abstract: A LED lamp has a base and an at least partially optically transmissive enclosure connected to the base. A heat sink is partially disposed in the enclosure and supports a plurality of LEDs. The heat sink comprising a mounting portion positioned in the enclosure for supporting the LEDs and a heat dissipating portion exposed to the ambient environment where the interior of the enclosure is exposed to the ambient environment. The heat sink have a plurality of separate heat sink structures that are mounted to the lamp independently of one another. Each heat sink structure may have a thickness of approximately 1-5 mm. Each heat sink structure may in some embodiments weigh approximately 3.8 to 7.7 grams and in other embodiments weigh approximately 27 grams.Type: GrantFiled: March 13, 2014Date of Patent: May 30, 2017Assignee: Cree, Inc.Inventors: Charles Richards, Shawn Keeney, Mark Youmans, Michael Leung, Nicholas Desilva, Dante Nava, Robert Higley
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Patent number: 9625105Abstract: Solid state lamp or bulb structures are disclosed that can provide an essentially omnidirectional emission pattern from directional emitting light sources, such as forward emitting light sources. The present invention is also directed to lamp structures using active elements to assist in thermal management of the lamp structures and in some embodiments to reduce the convective thermal resistance around certain of the lamp elements to increase the natural heat convection away from the lamp. Some embodiments include integral fans or other active elements that move air over the surfaces of a heat sink, while other embodiments comprise internal fans or other active elements that can draw air internal to the lamp. The fan's movement of the air over these surfaces can agitate otherwise stagnant air to decrease the convective thermal resistance and increasing the ability of the lamp to dissipate heat generated during operation.Type: GrantFiled: January 5, 2011Date of Patent: April 18, 2017Assignee: CREE, INC.Inventors: Tao Tong, Mark Youmans, Yejin He
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Patent number: 9316361Abstract: An LED lamp or bulb is disclosed that comprises a light source, a heat sink structure and an optical cavity. The optical cavity comprises a phosphor carrier having a conversions material and arranged over an opening to the cavity. The phosphor carrier comprises a thermally conductive transparent material and is thermally coupled to the heat sink structure. An LED based light source is mounted in the optical cavity remote to the phosphor carrier with light from the light source passing through the phosphor carrier. A diffuser dome is included that is mounted over the optical cavity, with light from the optical cavity passing through the diffuser dome. The diffuser dome can disperse the light passing through it into the desired emission pattern, such as omnidirection. In one embodiment, the light source can be blue emitting LED and the phosphor carrier can include a yellow phosphor, with the LED lamp or bulb emitting a white light combination of LED and phosphor light.Type: GrantFiled: January 31, 2011Date of Patent: April 19, 2016Assignee: CREE, INC.Inventors: Tao Tong, Ronan Le Toquin, Bernd Keller, Eric Tarsa, Mark Youmans, Theodore Lowes, Nicholas W. Medendorp, Jr., Antony Van De Ven, Gerald Negley
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Patent number: 9310030Abstract: A lighting device comprising a light source and a diffuser spaced from the light source. The lighting device further comprises a wavelength conversion material disposed between the light source and the diffuser and spaced from the light source and the diffuser, wherein the diffuser is shaped such that there are different distances between the diffuser and said conversion material at different emission angles. In other embodiments the diffuser includes areas with different diffusing characteristics. Some lamps are arranged to meet A19 and Energy Star lighting standards.Type: GrantFiled: October 8, 2010Date of Patent: April 12, 2016Assignee: CREE, INC.Inventors: Tao Tong, Ronan Letoquin, Bernd Keller, Eric Tarsa, Mark Youmans, Theodore Lowes, Nicholas W. Medendorp, Jr., Antony Van De Ven, Gerald Negley, Peter Guschl, Zongjie Yuan
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Patent number: 9303857Abstract: An LED based lamp has an optically transmissive enclosure connected to a base. The base may include a heat sink. A substrate is positioned in the enclosure and supports a plurality of LEDs where the periphery of the substrate has alternating recessed portions and protruding portions that define a plurality of laterally extending projections. One LED is located on each of the projections to increase the amount of down light generated by the lamp.Type: GrantFiled: March 11, 2013Date of Patent: April 5, 2016Assignee: Cree, Inc.Inventors: Nicholas Desilva, Dante Nava, Robert Higley, Mark Youmans
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Patent number: 9217544Abstract: LED based lamps and bulbs are disclosed that comprise a pedestal having a plurality of LEDs, wherein the pedestal at least partially comprises a thermally conductive material. A heat sink structure is included with the pedestal thermally coupled to the heat sink structure. A remote phosphor is arranged in relation to the LEDs so that at least some light from the LEDs passes through the remote phosphor and is converted to a different wavelength of light. Some lamp or bulb embodiments can emit a white light combination of light from the LEDs and the remote phosphor. These can include LEDs emitting blue light with the remote phosphor having a material that absorbs blue light and emits yellow or green light. A diffuser can be included to diffuse the emitting light into the desired pattern, such as omnidirectional.Type: GrantFiled: August 29, 2013Date of Patent: December 22, 2015Assignee: CREE, INC.Inventors: Tao Tong, Ronan LeToquin, Bernd Keller, Theodore Lowes, Eric Tarsa, Mark Youmans
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Patent number: 9062830Abstract: Solid state lamps and bulbs comprising different combinations and arrangements of a light source, one or more wavelength conversion materials, regions or layers which are positioned separately or remotely with respect to the light source, and a separate diffuser. These are arranged on a heat sink in a manner that allows for the fabrication of lamps and bulbs that are efficient, reliable and cost effective and can provide an essentially omnidirectional emission pattern, even with a light source comprised of a co-planar arrangement of LEDs. Additionally, this arrangement allows aesthetic masking or concealment of the appearance of the conversion regions or layers when the lamp is not illuminated. Various embodiments of the invention may be used to address many of the difficulties associated with utilizing efficient solid state light sources such as LEDs in the fabrication of lamps or bulbs suitable for direct replacement of traditional incandescent bulbs.Type: GrantFiled: February 16, 2011Date of Patent: June 23, 2015Assignee: Cree, Inc.Inventors: Long Larry Le, Paul Pickard, James Michael Lay, Tao Tong, Ronan Letoquin, Bernd Keller, Eric Tarsa, Mark Youmans, Theodore Lowes, Nicholas W. Medendorp, Jr., Antony Van De Ven, Gerald Negley