Patents by Inventor Gerald Negley

Gerald Negley 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).

  • Patent number: 9777897
    Abstract: Lighting fixtures are described utilizing a plurality of light sources, or light engines, which are mounted together in a modular fashion in the light fixture opening. In some embodiments, the plurality of light sources can comprise lighting panels that together form the overall fixture light source. The present invention is particularly applicable to troffer-style lighting fixtures that can be arranged with a plurality of lighting panels arranged in the troffer opening to illuminate the space below the troffer. Embodiments of the present invention can also utilize solid state light sources for the lighting panels, with some embodiments utilizing light emitting diodes (LEDs).
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: October 3, 2017
    Assignee: CREE, INC.
    Inventors: Paul Kenneth Pickard, Mark D. Edmond, Gerald Negley, Eric Tarsa
  • Patent number: 9657922
    Abstract: The present disclosure discloses a method for providing protective coatings onto an energizable LED component coupled to an electrical path. More particularly, the present disclosure relates to LED lamps comprising transparent dielectric coatings and LED lamps and devices made thereby.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 23, 2017
    Assignee: Cree, Inc.
    Inventors: Gerald Negley, Praneet Athalye, Shaow B. Lin
  • Patent number: 9599291
    Abstract: Solid state light sources, lighting devices and lamps arranged to provide emission with a warm temperature and high CRI. One embodiment of a solid state lighting device according to the present invention comprises a light emitting diode (LED) device capable of emitting light in an emission spectrum. A filter arranged so that at least some light from the LED light source passes through it, with the filter filtering at least some of one or more portions of the light source emission spectrum. The resulting light source light has a different temperature but substantially the same CRI after passing through the filter.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: March 21, 2017
    Assignee: CREE, INC.
    Inventors: Antony Van De Ven, Gerald Negley, Paul Kenneth Pickard
  • Patent number: 9484329
    Abstract: Solid state lighting components are disclosed having multiple discrete light sources whose light combines to provide the desired emission characteristics. One embodiment of an LED component according to the present invention comprises a rectangular submount. A first group of blue shifted yellow (BSY) LED chips, a second group of BSY LED chips and a group of red LED chips are mounted on the submount. A plurality of contacts is arranged along one of the edges of the submount and accessible from one side of the component for applying electrical signals to the groups of LED chips.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 1, 2016
    Assignee: CREE, INC.
    Inventors: Antony P. van de Ven, Gerald Negley, Thomas Yuan, Bernd Keller, Theodore Lowes
  • Patent number: 9425172
    Abstract: Lamps, luminaries or solid state lighting components are disclosed having multiple discrete light sources whose light combines to provide the desired emission characteristics. The discrete light sources are arranged in an array pursuant to certain guidelines to promote mixing of light from light sources emitting different colors of light. One embodiment solid state lighting component comprises a light emitting diode (LED) component having an array of LED chips having a first group of LED chips and one or more additional groups of LED chips. The array is arranged so that no two LED chips from said first group are directly next to one another in the array, that less than fifty percent (50%) of the LED chips in the first group of LEDs is on the perimeter of the array, and at least three LED chips from the one or more additional groups is adjacent each of the LED chips in the first group.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: August 23, 2016
    Assignee: CREE, INC.
    Inventors: Antony P. van de Ven, Gerald Negley
  • Patent number: 9335006
    Abstract: SSL lamps or luminaires are disclosed that combine blue, yellow (or green) and red photons or emissions to generate light with the desired characteristics. In different embodiments according to the present invention, the blue emission is not provided by an LED chip or package having a blue LED coated with a yellow phosphor, with blue light leaking through the yellow phosphor. Instead, the blue light component can be provided by other types of LED chips in the SSL luminaire such as one having a blue LED covered by a different colored conversion material, with blue light from the blue LED leaking through the different colored conversion material. In one embodiment, the blue component can be provided by an LED chip comprising a blue emitting LED covered by a conversion material that absorbs blue light and re-emits red light, with a portion of the blue light from the LED leaking through the red conversion material.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: May 10, 2016
    Assignee: CREE, INC.
    Inventors: Ronan Le Toquin, Bernd Keller, Tao Tong, Gerald Negley, Antony P. Van De Ven, John Roberts
  • Patent number: 9316361
    Abstract: 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: Grant
    Filed: January 31, 2011
    Date of Patent: April 19, 2016
    Assignee: 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
  • Patent number: 9310030
    Abstract: 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: Grant
    Filed: October 8, 2010
    Date of Patent: April 12, 2016
    Assignee: 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
  • Patent number: 9273830
    Abstract: A light emitting diode (LED) component comprising a submount with an array of LED chips and a lens over the array of LED chips. A diffuser is arranged so that at least some light from the LEDs passes through the diffuser to mix the LED light in the near field. The light passing through the diffuser appears as a mixture of LED chip light when directly viewed. A lighting device is also disclosed comprising an LED component comprising an array of LED chips and a near field diffuser to mix at least some of the light from the LED chips in the near field. A remote reflector is included to reflect at least some the light from the LED component so that is emits from the lighting device in the desired direction.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: March 1, 2016
    Assignee: CREE, INC.
    Inventors: Gerald Negley, Bernd Keller
  • Patent number: 9275979
    Abstract: LED packages, and LED lamps and bulbs, are disclosed that are arranged to minimize the CRI and efficiency losses resulting from the overlap of conversion material emission and excitation spectrum. In different devices having conversion materials with this overlap, the present invention arranges the conversion materials to reduce the likelihood that re-emitted light from a first conversion materials will encounter the second conversion material to minimize the risk of re-absorption. In some embodiments this risk is minimized by different arrangements where there is separation between the two phosphors. In some embodiments this separation results less than 50% of re-emitted light from the one phosphor passing into the phosphor where it risks re-absorption.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: March 1, 2016
    Assignee: CREE, INC.
    Inventors: Tao Tong, Ronan LeToquin, Bernd Keller, James Ibbetson, Gerald Negley
  • Patent number: 9243777
    Abstract: The present disclosure relates to optical elements and coatings comprising rare-earth element (REE) compounds for light wavelength attenuation of light emitting diode (LED) elements and lamps. More particularly, the present disclosure relates to LED elements and lamps comprising wavelength attenuating elements comprising REE compounds having at least a portion of non-crystalline, non-hydrate form, methods of preparing such elements, and LED elements, LED arrays, LED packages, optical elements, lamps and systems made with same.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 26, 2016
    Assignee: Cree, Inc.
    Inventors: Matthew Donofrio, Gerald Negley, Shaow B. Lin
  • Patent number: 9234655
    Abstract: LED based lamps and bulbs are disclosed that comprise an elevating element to arrange LEDs above the lamp or bulb base. The elevating element can at least partially comprise a thermally conductive material. A heat sink structure is included, with the elevating element thermally coupled to the heat sink structure. A diffuser can be arranged in relation to the LEDs so at least some light from the LEDs passes through the diffuser and is dispersed into the desired emission pattern. Some lamps and bulbs utilize a heat pipe for the elevating elements, with heat from the LEDs conducting through the heat pipe to the heat sink structure where it can dissipate in the ambient. The LED lamps can include other features to aid in thermal management and to produce the desired emission pattern, such as internal optically transmissive and thermally conductive materials, and heat sinks with different heat fin arrangements.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: January 12, 2016
    Assignee: CREE, INC.
    Inventors: Curt Progl, Praneet Athalye, Gerald Negley
  • Patent number: 9076940
    Abstract: An LED component comprising an array of LED chips mounted on a planar surface of a submount with the LED chips capable of emitting light in response to an electrical signal. The LED chips comprise respective groups emitting at different colors of light, with each of the groups interconnected in a series circuit. A lens is included over the LED chips. Other embodiments can comprise thermal spreading structures included integral to the submount and arranged to dissipate heat from the LED chips.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: July 7, 2015
    Assignee: Cree, Inc.
    Inventors: Thomas Yuan, Bernd Keller, James Ibbetson, Eric Tarsa, Gerald Negley
  • Patent number: 9062830
    Abstract: 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: Grant
    Filed: February 16, 2011
    Date of Patent: June 23, 2015
    Assignee: 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
  • Patent number: 9057511
    Abstract: 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 omni-directional 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: Grant
    Filed: February 24, 2011
    Date of Patent: June 16, 2015
    Assignee: Cree, Inc.
    Inventors: Long Larry Le, Ronan Letoquin, Bernd Keller, Eric Tarsa, Paul Pickard, James Michael Lay, Tao Tong, Mark Youmans, Theodore Lowes, Nicholas W. Medendorp, Jr., Antony Van De Ven, Gerald Negley
  • Publication number: 20150129921
    Abstract: An emitter package comprising a light emitting diode (LED) mounted to the surface of a submount with the surface having a first meniscus forming feature around the LED. A matrix encapsulant is included on the surface and covering the LED. The outer edge of the matrix encapsulant adjacent the surface is defined by the meniscus forming feature and the encapsulant forms a substantially dome-shaped covering over said LED. A method for manufacturing an LED package by providing a body with a surface having a first meniscus holding feature. An LED is mounted to the surface with the meniscus holding feature around the LED. A liquid matrix encapsulant is introduced over the LED and the surface, the first meniscus holding feature holding the liquid matrix encapsulant in a dome-shape over the LED. The matrix encapsulant is then cured.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 14, 2015
    Inventors: Gerald Negley, Michael Leung, Maryanne Underwood, Eric Tarsa, Peter Andrews
  • Patent number: 8969908
    Abstract: An emitter package comprising a light emitting diode (LED) mounted to the surface of a submount with the surface having a first meniscus forming feature around the LED. A matrix encapsulant is included on the surface and covering the LED. The outer edge of the matrix encapsulant adjacent the surface is defined by the meniscus forming feature and the encapsulant forms a substantially dome-shaped covering over said LED. A method for manufacturing an LED package by providing a body with a surface having a first meniscus holding feature. An LED is mounted to the surface with the meniscus holding feature around the LED. A liquid matrix encapsulant is introduced over the LED and the surface, the first meniscus holding feature holding the liquid matrix encapsulant in a dome-shape over the LED. The matrix encapsulant is then cured.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: March 3, 2015
    Assignee: Cree, Inc.
    Inventors: Gerald Negley, Michael Leung, Maryanne Becerra, Eric Tarsa, Peter Andrews
  • Patent number: 8882284
    Abstract: 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 properties of the diffuser, such as geometry, scattering properties of the scattering layer, surface roughness or smoothness, and spatial distribution of the scattering layer properties may be used to control various lamp properties such as color uniformity and light intensity distribution as a function of viewing angle.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 11, 2014
    Assignee: 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
  • Publication number: 20140268819
    Abstract: The present disclosure discloses a method for providing protective coatings onto an energizable LED component coupled to an electrical path. More particularly, the present disclosure relates to LED lamps comprising transparent dielectric coatings and LED lamps and devices made thereby.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: CREE, INC.
    Inventors: Gerald Negley, Praneet Athalye, Shaow B. Lin
  • Publication number: 20140168989
    Abstract: Solid state light sources, lighting devices and lamps arranged to provide emission with a warm temperature and high CRI. One embodiment of a solid state lighting device according to the present invention comprises a light emitting diode (LED) device capable of emitting light in an emission spectrum. A filter arranged so that at least some light from the LED light source passes through it, with the filter filtering at least some of one or more portions of the light source emission spectrum. The resulting light source light has a different temperature but substantially the same CRI after passing through the filter.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: CREE, INC.
    Inventors: Antony VAN DE VEN, Gerald NEGLEY, Paul Kenneth PICKARD