Patents by Inventor Martin Kristoffersen

Martin Kristoffersen 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: 8360138
    Abstract: The electronic system includes an electronic device and a liquid holding section that is thermally coupled to the electronic device. The electronic system further includes an impermeable section that engages the liquid holding section. The impermeable section includes a channel and a plurality of passages that provide fluid communication between the liquid holding section and the channel. The electronic system further includes (i) a first fluid that flows through the channel in the impermeable section to facilitate heat transfer from the electronic device to the first fluid; and (ii) a second fluid that flows from the liquid holding section through the plurality of passages into the channel when the second fluid boils within the liquid holding section due to heat transfer from the electronic device to the second fluid. In some embodiments, the first and second fluids are different types of substances.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: January 29, 2013
    Assignees: Honeywell International Inc., Regents of the University of Minnesota
    Inventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
  • Publication number: 20120194054
    Abstract: A solid state light having a solid state light source such as LEDs, an optical diffuser, and a thermal guide. The diffuser receives and distributes light from the light source, and the thermal guide is integrated with the optical diffuser for providing thermal conduction from the solid state light source and dissipating heat through convection and radiation for cooling the light. The interior surface of the optical diffuser can have extraction features for providing uniform distribution of light.
    Type: Application
    Filed: February 2, 2011
    Publication date: August 2, 2012
    Inventors: Raymond P. Johnston, Martin Kristoffersen, Michael A. Meis, Robert L. Brott
  • 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: 8192048
    Abstract: The present disclosure relates to illumination or lighting assemblies and systems that provide illumination using LEDs. In one aspect, the present disclosure provides a lighting assembly, comprising: multiple light emitting diodes that emit light; an optical system that directs the light emitted by the light emitting diodes, the optical system positioned adjacent to light emitting diodes; and a cooling fin including a two-phase cooling system, the cooling fin positioned adjacent to the light emitting diodes such that the two-phase cooling system removes heat from the light emitting diodes. In another aspect, the present disclosure provides a lighting system including multiple lighting assemblies.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: June 5, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Martin Kristoffersen, Rolf W. Biernath, Thomas R. Corrigan, David G. Freier, Raymond P. Johnston, Michael A. Meis, Kenneth A. P. Meyer, Vadim N. Savvateev, William A. Tolbert, Phillip E. Tuma
  • Publication number: 20110297354
    Abstract: The electronic system includes an electronic device and a liquid holding section that is thermally coupled to the electronic device. The electronic system further includes an impermeable section that engages the liquid holding section. The impermeable section includes a channel and a plurality of passages that provide fluid communication between the liquid holding section and the channel. The electronic system further includes (i) a first fluid that flows through the channel in the impermeable section to facilitate heat transfer from the electronic device to the first fluid; and (ii) a second fluid that flows from the liquid holding section through the plurality of passages into the channel when the second fluid boils within the liquid holding section due to heat transfer from the electronic device to the second fluid. In some embodiments, the first and second fluids are different types of substances.
    Type: Application
    Filed: August 18, 2011
    Publication date: December 8, 2011
    Applicants: Regents of the University of Minnesota, Honeywell International Inc.
    Inventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
  • Publication number: 20110273636
    Abstract: An LCD device with 3D and 2D sections. The device includes an LCD panel, a light guide with a backlight, and an embedded 3D-2D film stack positioned between the LCD panel and the light guide. The 3D and 2D sections provide for simultaneously viewing visual content in 3D and 2D formats. The device can also include a frame providing a barrier between the 3D and 2D sections and can include other features to enhance the display.
    Type: Application
    Filed: July 20, 2011
    Publication date: November 10, 2011
    Inventors: John C. Schultz, Michael J. Sykora, Martin Kristoffersen, Kathy L. Hagen, Glenn E. Casner, Bonnie W. Albrecht, Robert L. Brott, Scott E. Brigham, John C. Nelson
  • Patent number: 8011421
    Abstract: The electronic system includes an electronic device and a liquid holding section that is thermally coupled to the electronic device. The electronic system further includes an impermeable section that engages the liquid holding section. The impermeable section includes a channel and a plurality of passages that provide fluid communication between the liquid holding section and the channel. The electronic system further includes (i) a first fluid that flows through the channel in the impermeable section to facilitate heat transfer from the electronic device to the first fluid; and (ii) a second fluid that flows from the liquid holding section through the plurality of passages into the channel when the second fluid boils within the liquid holding section due to heat transfer from the electronic device to the second fluid. In some embodiments, the first and second fluids are different types of substances.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: September 6, 2011
    Assignees: Honeywell International Inc., Regents of the University of Minnesota
    Inventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
  • Patent number: 8004622
    Abstract: An LCD device with 3D and 2D sections. The device includes an LCD panel, a light guide with a backlight, and an embedded 3D-2D film stack positioned between the LCD panel and the light guide. The 3D and 2D sections provide for simultaneously viewing visual content in 3D and 2D formats. The device can also include a frame providing a barrier between the 3D and 2D sections and can include other features to enhance the display.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: August 23, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: John C. Schultz, Michael J. Sykora, Martin Kristoffersen, Kathy L. Hagen, Glenn E. Casner, Bonnie W. Albrecht, Robert L. Brott, Scott E. Brigham, John C. Nelson
  • Publication number: 20110193872
    Abstract: A control system for a hybrid daylight-coupled display having an LCD panel, a diffuser, and a curved reflector behind the LCD panel, and an active backlight for providing backlighting from an active light source. For passive backlighting, the diffuser transmits daylight to the reflector, which reflects the daylight to the LCD panel and provides substantially uniform distribution of the daylight on the LCD panel for backlighting it. The control system comprises a sensor unit detecting ambient light level surrounding the LCD display and another sensor unit detecting backlights provided by the active backlight and the daylight. The control system adjusts the brightness of the active backlight based on data from the two sensor units.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 11, 2011
    Inventors: Rolf W. Biernath, Scott E. Brigham, Martin Kristoffersen
  • Publication number: 20110063854
    Abstract: Suspended optical film assemblies including a frame, an optical film, and an elastomeric film are disclosed. The elastomeric films include a first attachment region, a second attachment region, and a free region between the first and second attachment regions. The first attachment region is affixed to the frame; the second attachment region is affixed to the optical film, so that the free region is in tension and supports the optical film within the frame. The tension in the elastomeric film free region can help maintain flatness and reduce distortion in the optical film during environmental changes that influence dimensional changes in the frame, optical film, and elastomeric film.
    Type: Application
    Filed: May 15, 2009
    Publication date: March 17, 2011
    Inventors: Raymond P. Johnston, David G. Freier, Mieczyslaw H. Mazurek, Martin Kristoffersen, John A. Wheatley
  • Publication number: 20110032708
    Abstract: A solid state light having a solid state light source such as LEDs, and 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 for cooling the light.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 10, 2011
    Inventors: Raymond P Johnston, Michael A. Meis, Martin Kristoffersen, Brian W. Lueck, Katie B. Thompson
  • Publication number: 20100271819
    Abstract: The present disclosure relates to illumination or lighting assemblies and systems that provide illumination using LEDs. In one aspect, the present disclosure provides a lighting assembly, comprising: multiple light emitting diodes that emit light; an optical system that directs the light emitted by the light emitting diodes, the optical system positioned adjacent to light emitting diodes; and a cooling fin including a two-phase cooling system, the cooling fin positioned adjacent to the light emitting diodes such that the two-phase cooling system removes heat from the light emitting diodes. In another aspect, the present disclosure provides a lighting system including multiple lighting assemblies.
    Type: Application
    Filed: November 18, 2009
    Publication date: October 28, 2010
    Inventors: Martin Kristoffersen, Rolf W. Biernath, Thomas R. Corrigan, David G. Freier, Raymond P. Johnston, Michael A. Meis, Kenneth A.P. Meyer, Vadim N. Savvateev, William A. Tolbert, Phillip E. Tuma
  • Patent number: 7750983
    Abstract: A stereoscopic 3D display with stretched film. The display includes a liquid crystal display panel, drive electronics configured to drive the liquid crystal display panel with alternating left eye and right eye images, and a light guide and a backlight positioned to provide light to the liquid crystal display. A frame is positioned between the liquid crystal display panel and the light guide, and a 3D film is stretched over the frame.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: July 6, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Martin Kristoffersen, Michael J. Sykora, John C. Schultz
  • Publication number: 20090091667
    Abstract: An LCD device with 3D and 2D sections. The device includes an LCD panel, a light guide with a backlight, and an embedded 3D-2D film stack positioned between the LCD panel and the light guide. The 3D and 2D sections provide for simultaneously viewing visual content in 3D and 2D formats. The device can also include a frame providing a barrier between the 3D and 2D sections and can include other features to enhance the display.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 9, 2009
    Inventors: John C. Schultz, Michael J. Sykora, Martin Kristoffersen, Kathy L. Hagen, Glenn E. Casner, Bonnie W. Albrecht, Robert L. Brott, Scott E. Brigham, John C. Nelson
  • Publication number: 20090091668
    Abstract: A stereoscopic 3D display with stretched film. The display includes a liquid crystal display panel, drive electronics configured to drive the liquid crystal display panel with alternating left eye and right eye images, and a light guide and a backlight positioned to provide light to the liquid crystal display. A frame is positioned between the liquid crystal display panel and the light guide, and a 3D film is stretched over the frame.
    Type: Application
    Filed: October 1, 2008
    Publication date: April 9, 2009
    Inventors: Martin Kristoffersen, Michael J. Sykora, John C. Schultz
  • Publication number: 20080137299
    Abstract: The electronic system includes an electronic device and a liquid holding section that is thermally coupled to the electronic device. The electronic system further includes an impermeable section that engages the liquid holding section. The impermeable section includes a channel and a plurality of passages that provide fluid communication between the liquid holding section and the channel. The electronic system further includes (i) a first fluid that flows through the channel in the impermeable section to facilitate heat transfer from the electronic device to the first fluid; and (ii) a second fluid that flows from the liquid holding section through the plurality of passages into the channel when the second fluid boils within the liquid holding section due to heat transfer from the electronic device to the second fluid. In some embodiments, the first and second fluids are different types of substances.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 12, 2008
    Inventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
  • Publication number: 20070153480
    Abstract: A system using a multi-fluid coolant. Immiscible or miscible fluids may be put through one or more channels. A device to be cooled may be thermally coupled to the channels. The boiling point of one fluid may be greater than an operating temperature that is to be maintained in the device. The boiling point of another fluid should be less than the operating temperature of the device.
    Type: Application
    Filed: December 18, 2006
    Publication date: July 5, 2007
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Chunbo Zhang, Yuandong Gu, Francis Kulacki, Martin Kristoffersen
  • Patent number: D642704
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: August 2, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Kayla A. Hagens, Raymond P. Johnston, Charles N. DeVore, Martin Kristoffersen, Brian W. Lueck, Katie B. Thompson