Patents by Inventor Florin A. Tudorica

Florin A. Tudorica 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).

  • Publication number: 20230246003
    Abstract: Light-emitting devices including solid-state light-emitting devices, light-emitting diodes (LEDs), and LED packages with reinforcement materials and related methods are disclosed. Reinforcement materials may include fibers and/or particles that are incorporated in various elements of light-emitting devices to provide improved mechanical strength, reduced differences in thermal expansion, improved adhesion between various device elements, modified optical characteristics such as modified far field patterns, and/or improved manufacturability. Reinforcement materials may be provided within support elements on which LED chips are mounted. In certain aspects, the support elements may be light-transmissive to light emitted by the LED chips. Reinforcement materials may also be provided in laminate films are that provided on support elements. Such laminate films may provide build-up structures that form cavities for the LED chip, or the laminate films may conformally cover the LED chips.
    Type: Application
    Filed: February 3, 2022
    Publication date: August 3, 2023
    Inventors: Boris Dzyubenko, Christopher P. Hussell, Florin A. Tudorica
  • Patent number: 10962199
    Abstract: Solid state lighting components are provided with improved color rendering, improved color uniformity, and improved directional lighting, and that are suitable for use in high output lighting applications and can be used in place of CDMH bulb lighting. Exemplary solid state lighting components include a substrate comprising a light emitter surface and or more light emitters disposed on and/or over the light emitter surface. Exemplary components include a light directing optic and/or a diffusing optic for mixing light. The light directing optic may be disposed at least partially around a perimeter of the light emitter surface. The diffusing optic may be disposed between portions of the light directing optic and spaced apart from the light emitter surface.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: March 30, 2021
    Assignee: Cree, Inc.
    Inventors: Florin A. Tudorica, Christopher P. Hussell, John Wesley Durkee, Peter Scott Andrews, Mark Cash, David Randolph
  • Publication number: 20200309347
    Abstract: Solid state lighting components are provided with improved color rendering, improved color uniformity, and improved directional lighting, and that are suitable for use in high output lighting applications and can be used in place of CDMH bulb lighting. Exemplary solid state lighting components include a substrate comprising a light emitter surface and or more light emitters disposed on and/or over the light emitter surface. Exemplary components include a light directing optic and/or a diffusing optic for mixing light. The light directing optic may be disposed at least partially around a perimeter of the light emitter surface. The diffusing optic may be disposed between portions of the light directing optic and spaced apart from the light emitter surface.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Inventors: Florin A. Tudorica, Christopher P. Hussell, John Wesley Durkee, Peter Scott Andrews, Mark Cash, David Randolph
  • Patent number: 10683971
    Abstract: Solid state lighting components are provided with improved color rendering, improved color uniformity, and improved directional lighting, and that are suitable for use in high output lighting applications and can be used in place of CDMH bulb lighting. Exemplary solid state lighting components include a substrate comprising a light emitter surface and or more light emitters disposed on and/or over the light emitter surface. Exemplary components include a light directing optic and/or a diffusing optic for mixing light. The light directing optic may be disposed at least partially around a perimeter of the light emitter surface. The diffusing optic may be disposed between portions of the light directing optic and spaced apart from the light emitter surface.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: June 16, 2020
    Assignee: Cree, Inc.
    Inventors: Florin A. Tudorica, Christopher P. Hussell, John Wesley Durkee, Peter Scott Andrews, Mark Cash, David Randolph
  • Patent number: 10267506
    Abstract: Solid state lighting apparatuses, systems, and related methods for improved heat distribution are described. A solid state lighting apparatus can include a substrate and an array of solid state light emitters of varying power arranged on or over the substrate, wherein a predetermined group of the solid state light emitters includes solid state light emitters non-uniformly spaced apart from one another. A method of providing a solid stare lighting apparatus can include providing a substrate, and mounting an array of solid state light emitters of varying power on or over the substrate such that a predetermined group of the solid state light emitters includes solid state light emitters non-uniformly spaced apart from one another.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: April 23, 2019
    Assignee: Cree, Inc.
    Inventors: Florin A. Tudorica, Christopher P. Hussell
  • Patent number: 10109773
    Abstract: A semiconductor light emitting device includes an LED and an associated recipient luminophoric medium that includes respective first through fourth luminescent materials that down-convert respective first through fourth portions of the radiation emitted by the LED to radiation having respective first through fourth peak wavelengths. The first peak wavelength is in the green color range and the second through fourth peak wavelengths are in the red color range. The second and third luminescent materials each emit light having a full-width half maximum bandwidth of at least 70 nanometers, while the fourth luminescent material emits light having a full-width half maximum bandwidth of less than 60 nanometers. Embodiments that only include three luminescent materials are also disclosed.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: October 23, 2018
    Assignee: Cree, Inc.
    Inventors: Iliya Todorov, David Clatterbuck, Jasper Cabalu, Brian Collins, Michael John Bergmann, Florin Tudorica
  • Patent number: 10008484
    Abstract: Solid state light fixtures include a plurality of blue-shifted-yellow/green light emitting diode (“LED”) packages and a plurality of blue-shifted-red LED packages, where the solid state light fixture emits light having a correlated color temperature of between 1800 K and 5500 K, a CRI value of between 80 and 99, a CRI R9 value of between 15 and 75, and a Qg value of between 90 and 110 when the blue-shifted-yellow/green LED packages and the blue-shifted-red LED packages are operating at steady-state operating temperatures of at least 80° C.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: June 26, 2018
    Assignee: Cree, Inc.
    Inventors: Michael John Bergmann, Florin Tudorica, P. Joseph DeSena
  • Publication number: 20180108816
    Abstract: A semiconductor light emitting device includes an LED and an associated recipient luminophoric medium that includes respective first through fourth luminescent materials that down-convert respective first through fourth portions of the radiation emitted by the LED to radiation having respective first through fourth peak wavelengths. The first peak wavelength is in the green color range and the second through fourth peak wavelengths are in the red color range. The second and third luminescent materials each emit light having a full-width half maximum bandwidth of at least 70 nanometers, while the fourth luminescent material emits light having a full-width half maximum bandwidth of less than 60 nanometers. Embodiments that only include three luminescent materials are also disclosed.
    Type: Application
    Filed: December 6, 2017
    Publication date: April 19, 2018
    Inventors: Iliya Todorov, David Clatterbuck, Jasper Cabalu, Brian Collins, Michael John Bergmann, Florin Tudorica
  • Patent number: 9905735
    Abstract: A semiconductor light emitting device includes an LED and a recipient luminophoric medium that includes a first narrow-spectrum luminescent material that down-converts a first portion of the radiation emitted by the LED to radiation having a first peak wavelength in the green-yellow color range and a second narrow-spectrum luminescent material that down-converts a second portion of the radiation emitted by the LED to radiation having a second peak wavelength in an orange-red color range. The first and second luminescent materials and any additional narrow-spectrum luminescent materials that are included in the recipient luminophoric medium generate at least 80% of the light emitted by the recipient luminophoric medium. A CRI value of the combined light emitted by the semiconductor light emitting device is at least 60 and less than 80.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: February 27, 2018
    Assignee: Cree, Inc.
    Inventors: Florin A. Tudorica, Brian Thomas Collins
  • Patent number: 9871173
    Abstract: A semiconductor light emitting device includes an LED and an associated recipient luminophoric medium that includes respective first through fourth luminescent materials that down-convert respective first through fourth portions of the radiation emitted by the LED to radiation having respective first through fourth peak wavelengths. The first peak wavelength is in the green color range and the second through fourth peak wavelengths are in the red color range. The second and third luminescent materials each emit light having a full-width half maximum bandwidth of at least 70 nanometers, while the fourth luminescent material emits light having a full-width half maximum bandwidth of less than 60 nanometers. Embodiments that only include three luminescent materials are also disclosed.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: January 16, 2018
    Assignee: Cree, Inc.
    Inventors: Iliya Todorov, David Clatterbuck, Jasper Cabalu, Brian Collins, Michael John Bergmann, Florin Tudorica
  • Publication number: 20180012874
    Abstract: Solid state light fixtures include a plurality of blue-shifted-yellow/green light emitting diode (“LED”) packages and a plurality of blue-shifted-red LED packages, where the solid state light fixture emits light having a correlated color temperature of between 1800 K and 5500 K, a CRI value of between 80 and 99, a CRI R9 value of between 15 and 75, and a Qg value of between 90 and 110 when the blue-shifted-yellow/green LED packages and the blue-shifted-red LED packages are operating at steady-state operating temperatures of at least 80° C.
    Type: Application
    Filed: September 7, 2017
    Publication date: January 11, 2018
    Inventors: Michael John Bergmann, Florin Tudorica, P. Joseph DeSena, JR.
  • Patent number: 9786639
    Abstract: Solid state light fixtures include a plurality of blue-shifted-yellow/green light emitting diode (“LED”) packages and a plurality of blue-shifted-red LED packages, where the solid state light fixture emits light having a correlated color temperature of between 1800 K and 5500 K, a CRI value of between 80 and 99, a CRI R9 value of between 15 and 75, and a Qg value of between 90 and 110 when the blue-shifted-yellow/green LED packages and the blue-shifted-red LED packages are operating at steady-state operating temperatures of at least 80° C.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: October 10, 2017
    Assignee: Cree, Inc.
    Inventors: Michael John Bergmann, Florin Tudorica, P. Joseph DeSena, Jr.
  • Publication number: 20170162547
    Abstract: Solid state light fixtures include a plurality of blue-shifted-yellow/green light emitting diode (“LED”) packages and a plurality of blue-shifted-red LED packages, where the solid state light fixture emits light having a correlated color temperature of between 1800 K and 5500 K, a CRI value of between 80 and 99, a CRI R9 value of between 15 and 75, and a Qg value of between 90 and 110 when the blue-shifted-yellow/green LED packages and the blue-shifted-red LED packages are operating at steady-state operating temperatures of at least 80° C.
    Type: Application
    Filed: August 3, 2016
    Publication date: June 8, 2017
    Inventors: Michael John Bergmann, Florin Tudorica, P. Joseph DeSena, JR.
  • Publication number: 20160372638
    Abstract: A semiconductor light emitting device includes an LED and an associated recipient luminophoric medium that includes respective first through fourth luminescent materials that down-convert respective first through fourth portions of the radiation emitted by the LED to radiation having respective first through fourth peak wavelengths. The first peak wavelength is in the green color range and the second through fourth peak wavelengths are in the red color range. The second and third luminescent materials each emit light having a full-width half maximum bandwidth of at least 70 nanometers, while the fourth luminescent material emits light having a full-width half maximum bandwidth of less than 60 nanometers. Embodiments that only include three luminescent materials are also disclosed.
    Type: Application
    Filed: June 16, 2016
    Publication date: December 22, 2016
    Inventors: Iliya Todorov, David Clatterbuck, Jasper Cabalu, Brian Collins, Michael John Bergmann, Florin Tudorica
  • Publication number: 20160320004
    Abstract: Solid state lighting components are provided with improved color rendering, improved color uniformity, and improved directional lighting, and that are suitable for use in high output lighting applications and can be used in place of CDMH bulb lighting. Exemplary solid state lighting components include a substrate comprising a light emitter surface and or more light emitters disposed on and/or over the light emitter surface. Exemplary components include a light directing optic and/or a diffusing optic for mixing light. The light directing optic may be disposed at least partially around a perimeter of the light emitter surface. The diffusing optic may be disposed between portions of the light directing optic and spaced apart from the light emitter surface.
    Type: Application
    Filed: April 29, 2016
    Publication date: November 3, 2016
    Inventors: Florin A. Tudorica, Christopher P. Hussell, John Wesley Durkee, Peter Scott Andrews, Mark Cash, David Randolph
  • Publication number: 20160161098
    Abstract: Solid state lighting apparatuses, systems, and related methods for improved heat distribution are described. A solid state lighting apparatus can include a substrate and an array of solid state light emitters of varying power arranged on or over the substrate, wherein a predetermined group of the solid state light emitters includes solid state light emitters non-uniformly spaced apart from one another. A method of providing a solid stare lighting apparatus can include providing a substrate, and mounting an array of solid state light emitters of varying power on or over the substrate such that a predetermined group of the solid state light emitters includes solid state light emitters non-uniformly spaced apart from one another.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 9, 2016
    Inventors: Florin A. Tudorica, Christopher P. Hussell
  • Publication number: 20160013164
    Abstract: Light emitter devices for light emitting diodes (LED chips) and related methods are disclosed. In one embodiment a light emitter device includes a substrate and a chip on board (COB) array of LED chips disposed over the substrate. A layer having wavelength conversion material provided therein is disposed over the array of LED chips for forming a light emitting surface from which light is emitted upon activation of the LED chips. In some aspects, the wavelength conversion material includes phosphoric or lumiphoric material that is settled and/or more densely concentrated within one or more predetermined portions of the layer. In some aspects, the devices and methods provided herein can comprise a lumen density of approximately 30 lm/mm2 or greater.
    Type: Application
    Filed: April 6, 2015
    Publication date: January 14, 2016
    Inventors: Florin A. Tudorica, Christopher P. Hussell, Amber C. Abare, Peter Scott Andrews, Sung Chul Joo
  • Patent number: 9000470
    Abstract: Light emitter devices for light emitting diodes (LED chips) and related methods are disclosed. In one embodiment a light emitter device includes a substrate and a chip on board (COB) array of LED chips disposed over the substrate. A layer having wavelength conversion material provided therein is disposed over the array of LED chips for forming a light emitting surface from which light is emitted upon activation of the LED chips. In some aspects, the wavelength conversion material includes phosphoric or lumiphoric material that is settled and/or more densely concentrated within one or more predetermined portions of the layer. In some aspects, the devices and methods provided herein can comprise a lumen density of approximately 30 lm/mm2 or greater.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: April 7, 2015
    Assignee: Cree, Inc.
    Inventors: Florin A. Tudorica, Christopher P. Hussell, Amber C. Abare, Peter Scott Andrews, Sung Chul Joo
  • Publication number: 20150062915
    Abstract: Light emitter devices and methods are provided herein. In some aspects, emitter devices and methods provided herein are for light emitting diode (LED) chips and can include providing a substrate, a conductive trace over the substrate, and at least one or more direct attach LED chip over the substrate. A layer of non-conductive and reflective material is disposed over the surface of wherein the layer of reflective material covers at least 25% or more of a surface of the substrate.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Inventors: Christopher P. Hussell, Jesse Colin Reiherzer, Erin R. F. Welch, Florin A. Tudorica
  • Patent number: 8922108
    Abstract: Remote component devices, systems, and methods are disclosed. In one aspect, remote component devices, systems, and methods can include a body for lockably securing the remote component to a housing. Devices, systems, and methods can also include one or more light emitting devices disposed over the body. An optical material can be remotely located at least a first distance away from the one or more light emitting devices. Remote component devices, systems, and methods disclosed herein can be used as replacements and/or equivalent light products for standard filament light bulbs and compact fluorescent lamp (CFL) bulbs.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: December 30, 2014
    Assignee: Cree, Inc.
    Inventors: Christopher P. Hussell, Peter Scott Andrews, Florin A. Tudorica, David T. Emerson