Patents by Inventor Charles N. Devore

Charles N. Devore 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: 10578884
    Abstract: An optical component array and method of making an optical component array includes a plurality of optical components useful for projection devices or other optical devices.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: March 3, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Joseph C. Carls, James M. Nelson, Charles N. DeVore, Dwight G. Baldwin
  • Patent number: 10036517
    Abstract: A lightguide functioning as a luminaire. The luminaire includes at least one solid state light source, such as an LED, and a lightguide configured to receive light from the solid state light source. Light from the light source is coupled into the lightguide and transported within it by total internal reflection until the light exits the lightguide. A shape of the lightguide causes and directs extraction of the light, and can also be used to create a particular pattern of the extracted light. Such shapes include linear wedges and twisted wedges. Optical films can be included on the light input and output surfaces of the lightguide.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: July 31, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Raymond P. Johnston, Robert L. Brott, Patrick R. Fleming, Karl J. L. Geisler, Kayla A. Hagens, Steven G. Lucht, Charles N. Devore, Joseph W. Woody, V, David Scott Thompson
  • Publication number: 20180081191
    Abstract: The present disclosure provides an optical component array and method of making an optical component array that can include a plurality of optical components useful for projection devices or other optical devices. The optical component array can be fabricated such that individual optical components having several elements can be assembled in a massively parallel manner and then singulated as individual optical components, and can result in a large reduction in manufacturing cost.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 22, 2018
    Inventors: Joseph C. Carls, James M. Nelson, Charles N. DeVore, Dwight G. Baldwin
  • Patent number: 9841605
    Abstract: The present disclosure provides an optical component array and method of making an optical component array that can include a plurality of optical components useful for projection devices or other optical devices. The optical component array can be fabricated such that individual optical components having several elements can be assembled in a massively parallel manner and then singulated as individual optical components, and can result in a large reduction in manufacturing cost.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: December 12, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Joseph C. Carls, James M. Nelson, Charles N. DeVore, Dwight G. Baldwin
  • Publication number: 20170268733
    Abstract: A lightguide functioning as a luminaire. The luminaire includes at least one solid state light source, such as an LED, and a lightguide configured to receive light from the solid state light source. Light from the light source is coupled into the lightguide and transported within it by total internal reflection until the light exits the lightguide. A shape of the lightguide causes and directs extraction of the light, and can also be used to create a particular pattern of the extracted light. Such shapes include linear wedges and twisted wedges. Optical films can be included on the light input and output surfaces of the lightguide.
    Type: Application
    Filed: June 2, 2017
    Publication date: September 21, 2017
    Inventors: RAYMOND P. JOHNSTON, ROBERT L. BROTT, PATRICK R. FLEMING, KARL J.L. GEISLER, KAYLA A. HAGENS, STEVEN G. LUCHT, CHARLES N. DEVORE, JOSEPH W. WOODY, V, DAVID SCOTT THOMPSON
  • Patent number: 9267674
    Abstract: A solid state light having a solid state light source such as LEDs, a light guide having an enclosed interior volume such as a bulb shape without vents, and a thermal guide. The light guide is coupled to the light source for receiving and distributing light from the light source. The thermal guide is at least partially contained within the interior volume with an air gap between a portion of the thermal guide and the light guide. The thermal guide provides for thermal conduction from the light source and dissipating heat through convection and radiation for cooling the light.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: February 23, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Raymond P. Johnston, Charles N. Devore, Martin J. Vos, Paul E. Humpal, Robert L. Brott, Kayla A. Hagens, Hamid R. Mortazavi, James F. Poch, Michael A. Meis, Timothy J. Pommer
  • Patent number: 9175813
    Abstract: A light having integrated light and thermal guides and separable electrical connectors. The light has a base for connection to a power supply, a light circuit electrically connected with solid state light sources such as LEDs, and a driver circuit for receiving power from the power supply and providing power to drive the light sources. A light guide is coupled to the light sources for receiving and distributing light from the light sources, and a thermal guide is integrated with the light guide for providing thermal conduction from the light source for cooling the light. The separable connectors include a first connector for providing an electrical connection between the driver circuit and light circuit, a second connector for providing an electrical connection between the power supply and driver circuit, and a third connector for providing a ground connection to the driver circuit.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: November 3, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Charles N. DeVore, Kayla A. Hagens, Wesley A. Raider, Larry A. Schleif, Steven Feldman, Steven A. Neu
  • Publication number: 20150109791
    Abstract: A solid state light having a solid state light source such as LEDs, a light guide having an enclosed interior volume such as a bulb shape without vents, and a thermal guide. The light guide is coupled to the light source for receiving and distributing light from the light source. The thermal guide is at least partially contained within the interior volume with an air gap between a portion of the thermal guide and the light guide. The thermal guide provides for thermal conduction from the light source and dissipating heat through convection and radiation for cooling the light.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 23, 2015
    Applicant: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Charles N. Devore, Martin J. Vos, Paul E. Humpal, Robert L. Brott, Kayla A. Hagens, Hamid R. Mortazavi, James F. Poch, Michael A. Meis, Timothy J. Pommer
  • Publication number: 20150098128
    Abstract: The present disclosure provides an optical component array and method of making an optical component array that can include a plurality of optical components useful for projection devices or other optical devices. The optical component array can be fabricated such that individual optical components having several elements can be assembled in a massively parallel manner and then singulated as individual optical components, and can result in a large reduction in manufacturing cost.
    Type: Application
    Filed: June 20, 2013
    Publication date: April 9, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Joseph C. Carls, James M. Nelson, Charles N. DeVore, Dwight G. Baldwin
  • Patent number: 8926131
    Abstract: A light with integrated light and thermal guides, and having solid state light sources such as LEDs. The light guide includes a material having a first surface and a second surface opposite the first surface and forming an interior volume. The light guide is coupled to the LEDs for receiving and distributing light from them through the first surface, and the light is transported through the light guide until the light is extracted from the first or second surface. The light guide can include alignment features such as fiducials that mate with a base. The thermal guide is contained within the interior volume and integrated with the light guide for providing thermal conduction from the LEDs for cooling the light. The thermal guide can be vented to provide for internal cross flow of air for the cooling.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: January 6, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Robert L. Brott, Paul E. Humpal, Kayla A. Hagens, Charles N. DeVore, Karl J. L. Geisler, Hamid R. Mortazavi, Wesley A. Raider, Gary W. Schukar
  • Publication number: 20140340927
    Abstract: A lightguide functioning as a luminaire. The luminaire includes at least one solid state light source, such as an LED, and a lightguide configured to receive light from the solid state light source. Light from the light source is coupled into the lightguide and transported within it by total internal reflection until the light exits the lightguide. A shape of the lightguide causes and directs extraction of the light, and can also be used to create a particular pattern of the extracted light. Such shapes include linear wedges and twisted wedges. Optical films can be included on the light input and output surfaces of the lightguide.
    Type: Application
    Filed: May 16, 2013
    Publication date: November 20, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: RAYMOND P. JOHNSTON, ROBERT L. BROTT, PATRICK R. FLEMING, KARL J.L. GEISLER, KAYLA A. HAGENS, STEVEN G. LUCHT, CHARLES N. DEVORE, JOSEPH W. WOODY, V, DAVID SCOTT THOMPSON
  • Publication number: 20130301268
    Abstract: A light with integrated light and thermal guides, and having solid state light sources such as LEDs. The light guide includes a material having a first surface and a second surface opposite the first surface and forming an interior volume. The light guide is coupled to the LEDs for receiving and distributing light from them through the first surface, and the light is transported through the light guide until the light is extracted from the first or second surface. The light guide can include alignment features such as fiducials that mate with a base. The thermal guide is contained within the interior volume and integrated with the light guide for providing thermal conduction from the LEDs for cooling the light. The thermal guide can be vented to provide for internal cross flow of air for the cooling.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 14, 2013
    Inventors: Raymond P. Johnston, Robert L. Brott, Paul E. Humpal, Kayla A. Hagens, Charles N. DeVore, Karl J. L. Geisler, Hamid R. Mortazavi, Wesley A. Raider, Gary W. Schukar
  • Publication number: 20130257278
    Abstract: A light having integrated light and thermal guides and separable electrical connectors. The light has a base for connection to a power supply, a light circuit electrically connected with solid state light sources such as LEDs, and a driver circuit for receiving power from the power supply and providing power to drive the light sources. A light guide is coupled to the light sources for receiving and distributing light from the light sources, and a thermal guide is integrated with the light guide for providing thermal conduction from the light source for cooling the light. The separable connectors include a first connector for providing an electrical connection between the driver circuit and light circuit, a second connector for providing an electrical connection between the power supply and driver circuit, and a third connector for providing a ground connection to the driver circuit.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Inventors: Charles N. DeVore, Kayla A. Hagens, Wesley A. Raider, Larry A. Schleif, Steven Feldman, Steven A. Neu
  • Patent number: 8487518
    Abstract: A solid state light having a solid state light source such as LEDs, an optical guide, and a thermal guide. The optical guide is coupled to the light source for receiving and distributing light from the light source, and the thermal guide is integrated with the optical guide for providing thermal conduction from the solid state light source and dissipating heat through convection and radiation for cooling the light. The optical guide can be tapered to enhance the efficiency of light distribution. The thermal guide can have an external shell connected with internal fins, and the external shell can have a reflective coating to provide for a back reflector behind the optical guide.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: July 16, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Michael A. Meis, Robert L. Brott, Martin Kristoffersen, Charles N. DeVore, Paul E. Humpal
  • Publication number: 20130155719
    Abstract: A lightguide functioning as a luminaire. The luminaire includes at least one solid state light source, such as an LED, and a lightguide configured to receive light from the solid state light source. Light from the light source is coupled into the lightguide and transported within it by total internal reflection until the light exits the lightguide. A shape of the lightguide causes and directs extraction of the light. The shape can also be used to create a particular pattern of the extracted light.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 20, 2013
    Inventors: Robert L. Brott, Michael A. Meis, Karl J.L. Geisler, Raymond P. Johnston, Charles N. DeVore, Kayla A. Hagens, Jon A. Kirschhoffer
  • Patent number: 8355809
    Abstract: Computer implemented method for making a die includes: selecting coating uniformity required to produce a particular coated product with the die and a value for one or more dimensions of the die; determining (using a mathematical model determined by regression analysis) total indicated run-out (TIR) of a die surface and dimensions of the die not having a user specified value; and machining die part or parts to the determined TIR and dimensions. A thermal treatment process for reducing the number of finishing (e.g., grinding) cycles needed to produce a desired die flatness is provided. A coating fluid rheological characteristic can be an input to the method.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: January 15, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Robert A. Yapel, Robert B. Secor, Michael J. Tichy, Bruce D. Shalles, Charles N. DeVore, Jennifer L. Trice, James M. Nelson, Andrzej P. Jaworski, William R. Dudley, Keith R. Bruesewitz
  • Publication number: 20120139403
    Abstract: A solid state light having a solid state light source such as LEDs, an optical guide, and a thermal guide. The optical guide is coupled to the light source for receiving and distributing light from the light source, and the thermal guide is integrated with the optical guide for providing thermal conduction from the solid state light source and dissipating heat through convection and radiation for cooling the light. The optical guide can be tapered to enhance the efficiency of light distribution. The thermal guide can have an external shell connected with internal fins, and the external shell can have a reflective coating to provide for a back reflector behind the optical guide.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 7, 2012
    Inventors: Raymond P. Johnston, Michael A. Meis, Robert L. Brott, Martin Kristoffersen, Charles N. DeVore, Paul E. Humpal
  • Patent number: D655830
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: March 13, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Martin E. Broen, Robert L. Brott, Jorge C. Ceballos, Charles N. Devore, Andrew R. Fox, Karl J. L. Geisler, Kayla A. Hagens, Sean C. McGreevy, Hamid R. Mortazavi
  • Patent number: D657076
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: April 3, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Martin E. Broen, Robert L. Brott, Jorge C. Ceballos, Charles N. Devore, Andrew R. Fox, Karl J. L. Geisler, Kayla A. Hagens, Sean C. McGreevy, Hamid R. Mortazavi
  • Patent number: D674129
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: January 8, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond P. Johnston, Martin E. Broen, Robert L. Brott, Jorge C. Ceballos, Charles N. Devore, Sean C. McGreevy