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).
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Patent number: 8360138Abstract: 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: GrantFiled: August 18, 2011Date of Patent: January 29, 2013Assignees: Honeywell International Inc., Regents of the University of MinnesotaInventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
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Publication number: 20120194054Abstract: 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: ApplicationFiled: February 2, 2011Publication date: August 2, 2012Inventors: Raymond P. Johnston, Martin Kristoffersen, Michael A. Meis, Robert L. Brott
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Publication number: 20120139403Abstract: 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: ApplicationFiled: December 6, 2010Publication date: June 7, 2012Inventors: Raymond P. Johnston, Michael A. Meis, Robert L. Brott, Martin Kristoffersen, Charles N. DeVore, Paul E. Humpal
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Patent number: 8192048Abstract: 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: GrantFiled: November 18, 2009Date of Patent: June 5, 2012Assignee: 3M Innovative Properties CompanyInventors: 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
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Publication number: 20110297354Abstract: 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: ApplicationFiled: August 18, 2011Publication date: December 8, 2011Applicants: Regents of the University of Minnesota, Honeywell International Inc.Inventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
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Publication number: 20110273636Abstract: 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: ApplicationFiled: July 20, 2011Publication date: November 10, 2011Inventors: 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
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Patent number: 8011421Abstract: 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: GrantFiled: December 12, 2006Date of Patent: September 6, 2011Assignees: Honeywell International Inc., Regents of the University of MinnesotaInventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
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Patent number: 8004622Abstract: 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: GrantFiled: September 30, 2008Date of Patent: August 23, 2011Assignee: 3M Innovative Properties CompanyInventors: 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
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Publication number: 20110193872Abstract: 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: ApplicationFiled: February 9, 2010Publication date: August 11, 2011Inventors: Rolf W. Biernath, Scott E. Brigham, Martin Kristoffersen
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Publication number: 20110063854Abstract: 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: ApplicationFiled: May 15, 2009Publication date: March 17, 2011Inventors: Raymond P. Johnston, David G. Freier, Mieczyslaw H. Mazurek, Martin Kristoffersen, John A. Wheatley
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Publication number: 20110032708Abstract: 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: ApplicationFiled: August 4, 2009Publication date: February 10, 2011Inventors: Raymond P Johnston, Michael A. Meis, Martin Kristoffersen, Brian W. Lueck, Katie B. Thompson
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Publication number: 20100271819Abstract: 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: ApplicationFiled: November 18, 2009Publication date: October 28, 2010Inventors: 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
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Patent number: 7750983Abstract: 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: GrantFiled: October 1, 2008Date of Patent: July 6, 2010Assignee: 3M Innovative Properties CompanyInventors: Martin Kristoffersen, Michael J. Sykora, John C. Schultz
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Publication number: 20090091667Abstract: 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: ApplicationFiled: September 30, 2008Publication date: April 9, 2009Inventors: 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
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Publication number: 20090091668Abstract: 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: ApplicationFiled: October 1, 2008Publication date: April 9, 2009Inventors: Martin Kristoffersen, Michael J. Sykora, John C. Schultz
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Publication number: 20080137299Abstract: 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: ApplicationFiled: December 12, 2006Publication date: June 12, 2008Inventors: Chunbo Zhang, Yuandong Gu, Martin Kristoffersen, Francis A. Kulacki, Brian C. Krafthefer
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Publication number: 20070153480Abstract: 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: ApplicationFiled: December 18, 2006Publication date: July 5, 2007Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Chunbo Zhang, Yuandong Gu, Francis Kulacki, Martin Kristoffersen
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Patent number: D642704Type: GrantFiled: December 6, 2010Date of Patent: August 2, 2011Assignee: 3M Innovative Properties CompanyInventors: Kayla A. Hagens, Raymond P. Johnston, Charles N. DeVore, Martin Kristoffersen, Brian W. Lueck, Katie B. Thompson