Patents by Inventor Michael Camras
Michael Camras 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: 11984540Abstract: An inorganic coating may be applied to bond optically scattering particles or components. Optically scattering particles bonded via the inorganic coating may form a three dimensional film which can receive a light emission, convert, and emit the light emission with one or more changed properties. The inorganic coating may be deposited using a low-pressure deposition technique such as an atomic layer deposition (ALD) technique. Two or more components, such as an LED and a ceramic phosphor layer may be bonded together by depositing an inorganic coating using the ALD technique.Type: GrantFiled: December 20, 2022Date of Patent: May 14, 2024Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Bhardwaj, Peter Josef Schmidt, Niels Jeroen Van Der Veen
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Patent number: 11854384Abstract: Systems, devices, and methods are disclosed in which one or more light sources, a detector, a processor and a controller are configured such that light from the one or more light sources improves the ability of a human or automated motor vehicle driver to identify and avoid pedestrians. The one or more light sources may provide spot illumination to moving objects or pedestrians on a road surface, with the spot illumination following the moving object or pedestrians along the portion of the road surface. The one or more light sources may project images on the ground or on other surfaces. The light source may be carried by a pedestrian or on personal transport used by a pedestrian. The light sources may be stationary and provide lighting for a pedestrian street crossing.Type: GrantFiled: December 19, 2022Date of Patent: December 26, 2023Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Kiron Bhardwaj
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Patent number: 11798405Abstract: Systems, devices, and methods are disclosed in which one or more light sources, a detector, a processor and a controller are configured such that light from the one or more light sources improves the ability of a human or automated motor vehicle driver to identify and avoid pedestrians. The one or more light sources may provide spot illumination to moving objects or pedestrians on a road surface, with the spot illumination following the moving object or pedestrians along the portion of the road surface. The one or more light sources may project images on the ground or on other surfaces. The light source may be carried by a pedestrian or on personal transport used by a pedestrian. The light sources may be stationary and provide lighting for a pedestrian street crossing.Type: GrantFiled: November 21, 2022Date of Patent: October 24, 2023Assignee: LUMILEDS LLCInventors: Michael Camras, Jyoti Kiron Bhardwaj
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Patent number: 11798406Abstract: Systems, devices, and methods are disclosed in which one or more light sources, a detector, a processor and a controller are configured such that light from the one or more light sources improves the ability of a human or automated motor vehicle driver to identify and avoid pedestrians. The one or more light sources may provide spot illumination to moving objects or pedestrians on a road surface, with the spot illumination following the moving object or pedestrians along the portion of the road surface. The one or more light sources may project images on the ground or on other surfaces. The light source may be carried by a pedestrian or on personal transport used by a pedestrian. The light sources may be stationary and provide lighting for a pedestrian street crossing.Type: GrantFiled: December 19, 2022Date of Patent: October 24, 2023Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Kiron Bhardwaj
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Patent number: 11563150Abstract: An inorganic coating may be applied to bond optically scattering particles or components. Optically scattering particles bonded via the inorganic coating may form a three dimensional film which can receive a light emission, convert, and emit the light emission with one or more changed properties. The inorganic coating may be deposited using a low-pressure deposition technique such as an atomic layer deposition (ALD) technique. Two or more components, such as an LED and a ceramic phosphor layer may be bonded together by depositing an inorganic coating using the ALD technique.Type: GrantFiled: December 21, 2020Date of Patent: January 24, 2023Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Bhardwaj, Peter Josef Schmidt, Niels Jeroen Van Der Veen
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Patent number: 11508235Abstract: Systems, devices, and methods are disclosed in which one or more light sources, a detector, a processor and a controller are configured such that light from the one or more light sources improves the ability of a human or automated motor vehicle driver to identify and avoid pedestrians. The one or more light sources may provide spot illumination to moving objects or pedestrians on a road surface, with the spot illumination following the moving object or pedestrians along the portion of the road surface. The one or more light sources may project images on the ground or on other surfaces. The light source may be carried by a pedestrian or on personal transport used by a pedestrian. The light sources may be stationary and provide lighting for a pedestrian street crossing.Type: GrantFiled: August 19, 2021Date of Patent: November 22, 2022Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Kiron Bhardwaj
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Patent number: 11480854Abstract: Systems, devices, and methods are disclosed in which one or more light sources, a detector, a processor and a controller are configured such that light from the one or more light sources can provide illumination or projections that can reduce accidents while the vehicle is in motion and when parked and may also provide information and illumination to the driver and vehicle occupants when entering or exiting the vehicle. These systems may, for example, provide spot illumination to moving objects or pedestrians on the road surface, with the spot illumination following the moving object. Alternatively or in addition these systems may project images on the ground, for example to communicate information to occupants of the vehicle, to occupants of another vehicle, or to pedestrians.Type: GrantFiled: December 26, 2019Date of Patent: October 25, 2022Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Kiron Bhardwaj
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Patent number: 11345278Abstract: One or more light sources, one or more detectors, a processor, and a controller are configured to provide spot illumination that follows a moving object, a moving occupant, or a portion of a moving occupant in the vehicle.Type: GrantFiled: May 11, 2021Date of Patent: May 31, 2022Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Kiron Bhardwaj
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Patent number: 11107346Abstract: Systems, devices, and methods are disclosed in which one or more light sources, a detector, a processor and a controller are configured such that light from the one or more light sources improves the ability of a human or automated motor vehicle driver to identify and avoid pedestrians. The one or more light sources may provide spot illumination to moving objects or pedestrians on a road surface, with the spot illumination following the moving object or pedestrians along the portion of the road surface. The one or more light sources may project images on the ground or on other surfaces. The light source may be carried by a pedestrian or on personal transport used by a pedestrian. The light sources may be stationary and provide lighting for a pedestrian street crossing.Type: GrantFiled: December 20, 2018Date of Patent: August 31, 2021Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Kiron Bhardwaj
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Patent number: 11007931Abstract: One or more light sources, one or more detectors, a processor, and a controller are configured to provide spot illumination that follows a moving object, a moving occupant, or a portion of a moving occupant in the vehicle.Type: GrantFiled: December 26, 2019Date of Patent: May 18, 2021Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Kiron Bhardwaj
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Patent number: 10957187Abstract: Systems, devices, and methods are disclosed in which one or more light sources, a detector, a processor and a controller are configured such that light from the one or more light sources improves the ability of a human or automated motor vehicle driver to identify and avoid pedestrians. The one or more light sources may provide spot illumination to moving objects or pedestrians on a road surface, with the spot illumination following the moving object or pedestrians along the portion of the road surface. The one or more light sources may project images on the ground or on other surfaces. The light source may be carried by a pedestrian or on personal transport used by a pedestrian. The light sources may be stationary and provide lighting for a pedestrian street crossing.Type: GrantFiled: December 20, 2018Date of Patent: March 23, 2021Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Kiron Bhardwaj
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Patent number: 10886437Abstract: An inorganic coating may be applied to bond optically scattering particles or components. Optically scattering particles bonded via the inorganic coating may form a three dimensional film which can receive a light emission, convert, and emit the light emission with one or more changed properties. The inorganic coating may be deposited using a low-pressure deposition technique such as an atomic layer deposition (ALD) technique. Two or more components, such as an LED and a ceramic phosphor layer may be bonded together by depositing an inorganic coating using the ALD technique.Type: GrantFiled: November 2, 2017Date of Patent: January 5, 2021Assignee: Lumileds LLCInventors: Michael Camras, Jyoti Bhardwaj, Peter J. Schmidt, Niels Jeroen Van Der Veen
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Patent number: 10885772Abstract: Systems, devices, and methods are disclosed in which one or more light sources, a detector, a processor and a controller are configured such that light from the one or more light sources improves the ability of a human or automated motor vehicle driver to identify and avoid pedestrians. The one or more light sources may provide spot illumination to moving objects or pedestrians on a road surface, with the spot illumination following the moving object or pedestrians along the portion of the road surface. The one or more light sources may project images on the ground or on other surfaces. The light source may be carried by a pedestrian or on personal transport used by a pedestrian. The light sources may be stationary and provide lighting for a pedestrian street crossing.Type: GrantFiled: December 20, 2018Date of Patent: January 5, 2021Assignee: LUMILEDS LLCInventors: Michael Camras, Jyoti Kiron Bhardwaj
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Publication number: 20080023719Abstract: Light emitting devices with improved light extraction efficiency are provided. The light emitting devices have a stack of layers including semiconductor layers comprising an active region. The stack is bonded to a transparent optical element.Type: ApplicationFiled: October 8, 2007Publication date: January 31, 2008Applicant: PHILIPS LUMILEDS LIGHTING COMPANY, LLCInventors: Michael Camras, Michael Krames, Wayne Snyder, Frank Steranka, Robert Taber, John Uebbing, Douglas Pocius, Troy Trottier, Christopher Lowery, Gerd Mueller, Regina Mueller-Mach, Gloria Hofler
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Publication number: 20080006840Abstract: A device includes a light emitting semiconductor device bonded to an optical element. In some embodiments, the optical element may be elongated or shaped to direct a portion of light emitted by the active region in a direction substantially perpendicular to a central axis of the semiconductor light emitting device and the optical element. In some embodiments, the semiconductor light emitting device and optical element are positioned in a reflector or adjacent to a light guide. The optical element may be bonded to the first semiconductor light emitting device by a bond at an interface disposed between the optical element and the semiconductor light emitting device. In some embodiments, the bond is substantially free of organic-based adhesives.Type: ApplicationFiled: September 24, 2007Publication date: January 10, 2008Applicant: PHILIPS LUMILEDS LIGHTING COMPANY, LLCInventors: Michael Camras, Gerard Harbers, William Imler, Matthijs Keuper, Paul Martin, Douglas Pocius, Frank Steranka, Helena Ticha, Ladislav Tichy, R. West
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Publication number: 20060258028Abstract: A light emitting device is produced by depositing a layer of wavelength converting material over the light emitting device, testing the device to determine the wavelength spectrum produced and correcting the wavelength converting member to produce the desired wavelength spectrum. The wavelength converting member may be corrected by reducing or increasing the amount of wavelength converting material. In one embodiment, the amount of wavelength converting material in the wavelength converting member is reduced, e.g., through laser ablation or etching, to produce the desired wavelength spectrum.Type: ApplicationFiled: May 31, 2006Publication date: November 16, 2006Applicant: Philips Lumileds Lighting Company LLCInventors: Steven Paolini, Michael Camras, Oscar Chao Pujol, Frank Steranka, John Epler
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Publication number: 20060118805Abstract: A device includes a light emitting semiconductor device bonded to an optical element. In some embodiments, the optical element may be elongated or shaped to direct a portion of light emitted by the active region in a direction substantially perpendicular to a central axis of the semiconductor light emitting device and the optical element. In some embodiments, the semiconductor light emitting device and optical element are positioned in a reflector or adjacent to a light guide. The optical element may be bonded to the first semiconductor light emitting device by a bond at an interface disposed between the optical element and the semiconductor light emitting device. In some embodiments, the bond is substantially free of organic-based adhesives.Type: ApplicationFiled: January 9, 2006Publication date: June 8, 2006Inventors: Michael Camras, Gerard Harbers, William Imler, Matthijs Keuper, Paul Martin, Douglas Pocius, Frank Steranka, Helena Ticha, Ladislav Tichy, R. West
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Publication number: 20060105478Abstract: A device is provided with at least one light emitting device (LED) die mounted on a submount with an optical element subsequently thermally bonded to the LED die. The LED die is electrically coupled to the submount through contact bumps that have a higher temperature melting point than is used to thermally bond the optical element to the LED die. In one implementation, a single optical element is bonded to a plurality of LED dice that are mounted to the submount and the submount and the optical element have approximately the same coefficients of thermal expansion. Alternatively, a number of optical elements may be used. The optical element or LED die may be covered with a coating of wavelength converting material. In one implementation, the device is tested to determine the wavelengths produced and additional layers of the wavelength converting material are added until the desired wavelengths are produced.Type: ApplicationFiled: November 12, 2004Publication date: May 18, 2006Applicant: Lumileds Lighting U.S., LLCInventors: Michael Camras, William Imler, Franklin Wall, Frank Steranka, Michael Krames, Helena Ticha, Ladislav Tichy
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Publication number: 20050167693Abstract: P-type layers of a GaN based light-emitting device are optimized for formation of Ohmic contact with metal. In a first embodiment, a p-type GaN transition layer with a resistivity greater than or equal to about 7 ? cm is formed between a p-type conductivity layer and a metal contact. In a second embodiment, the p-type transition layer is any III-V semiconductor. In a third embodiment, the p-type transition layer is a superlattice. In a fourth embodiment, a single p-type layer of varying composition and varying concentration of dopant is formed.Type: ApplicationFiled: March 30, 2005Publication date: August 4, 2005Inventors: Werner Goetz, Michael Camras, Changhua Chen, Xiaoping Chen, Gina Christenson, R. Kern, Chihping Kuo, Paul Martin, Daniel Steigerwald
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Publication number: 20050032257Abstract: A method of bonding a transparent optical element to a light emitting device having a stack of layers including semiconductor layers comprising an active region is provided. The method includes elevating a temperature of the optical element and the stack and applying a pressure to press the optical element and the stack together. In one embodiment, the method also includes disposing a layer of a transparent bonding material between the stack and the optical element. The bonding method can be applied to a premade optical element or to a block of optical element material which is later formed or shaped into an optical element such as a lens or an optical concentrator.Type: ApplicationFiled: September 10, 2004Publication date: February 10, 2005Inventors: Michael Camras, Michael Krames, Wayne Snyder, Frank Steranka, Robert Taber, John Uebbing, Douglas Pocius, Troy Trottier, Christopher Lowery, Gerd Mueller, Regina Mueller-Mach, Gloria Hofler