Patents by Inventor Karl J. L. Geisler

Karl J. L. Geisler 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: 20210187819
    Abstract: Films and articles are described comprising a microstructured surface having an array of peak structures and adjacent valleys. For improved cleanability, the valleys preferably have a maximum width ranging from 10 microns to 250 microns and the peak structures have a side wall angle greater than 10 degrees. The peak structures may comprise two or more facets such as in the case of a linear array of prisms or an array of cube-corners elements. The facets form continuous or semi-continuous surfaces in the same direction. The valleys typically lack intersecting walls. Also described are methods of making and methods of use. The microstructured surface of the article can be prepared by various microreplication techniques such as coating, injection molding, embossing, laser etching, extrusion, casting and curing a polymerizable resin; and bonding microstructured film to a surface or article with an adhesive.
    Type: Application
    Filed: February 23, 2021
    Publication date: June 24, 2021
    Inventors: Jodi L. Connell, Raymond P. Johnston, John J. Sullivan, Karl J.L. Geisler, Vivian W. Jones, Gordon A. Kuhnley, Patrick G. Zimmerman, Bradley W. Eaton, Kurt J. Halverson, Brian W. Lueck, Alexander C. Eldredge, Hyacinth L. Lechuga
  • Publication number: 20210177549
    Abstract: The present invention describes medical articles having a microstructured surface, methods of preparing such medical articles, and methods of cleaning medical articles having microstructured surface(s).
    Type: Application
    Filed: February 23, 2021
    Publication date: June 17, 2021
    Inventors: Jodi L. Connell, Raymond P. Johnston, Karl J.L. Geisler, Brian W. Lueck, John J. Sullivan, Vivian W. Jones, Gordon A. Kuhnley
  • Publication number: 20210171701
    Abstract: The present disclosure provides an orthodontic article including the reaction product of the polymerizable composition. Further, the present disclosure provides polymerizable compositions and methods of making an orthodontic article. The method includes obtaining a polymerizable composition and selectively curing the polymerizable composition to form an orthodontic article. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an orthodontic article; and generating, with the manufacturing device by an additive manufacturing process, the orthodontic article based on the digital object. A system is also provided, including a display that displays a 3D model of an orthodontic article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an orthodontic article.
    Type: Application
    Filed: June 27, 2019
    Publication date: June 10, 2021
    Inventors: Thomas P. Klun, Zeba Parkar, John M. Riedesel, Richard J. Pokorny, Chad M. Amb, Benjamin R. Coonce, Robert S. Clough, Tianyu Wu, Saswata Chakraborty, Yongshang Lu, Benjamin C. Mac Murray, Ahmed S. Abuelyaman, Karl J.L. Geisler, Jodi L. Connell, Ta-Hua Yu
  • 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
  • Patent number: 9995450
    Abstract: A film stack reflects incident light in some areas and transmits incident light in other areas, and it redirects incident light with one or more structured surfaces. The spatially variable reflection and transmission is achieved at least in part with reflective strips, and the reflective strips are attached to a first major surface of a structured optical film in the film stack. A second major surface of the structured optical film, opposite the first major surface, attaches to a substrate. The reflective strips attach to the structured optical film by a first discontinuous adhesive layer, having first adhesive areas. The structured optical film attaches to the substrate by a second discontinuous adhesive layer, having second adhesive areas. A major portion of the first adhesive areas, and a major portion of the second adhesive areas, is circumscribed by the reflective strips. The film stack may be part of a light duct.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: June 12, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Karl J. L. Geisler, Paul A. Nielsen
  • Patent number: 9976714
    Abstract: The present disclosure describes light delivery and distribution components of a light duct that can be used as a luminaire, such as a bollard-style luminaire that can be useful for the illumination of pedestrian crosswalks, the light engine useful in the luminaire, and methods for making the light engine and the luminaire. The present disclosure further describes methods for crosswalk illumination using the bollard-style luminaires, and methods of communication between bollard luminaires. The bollard luminaire includes a design that generally confines light to illuminate the crosswalk and the pedestrian in the crosswalk, such that light that could produce glare for the pedestrian and/or a driver approaching the crosswalk is minimized.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: May 22, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Karl J. L. Geisler, Glendon D. Kappel, David G. Freier, Mark G. Mathews, Nicholas G. Amell, Scott E. Simons
  • 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: 9719673
    Abstract: Generally, the present disclosure provides for a light engine, in particular a rack-mounted light engine that can be used in a lighting system. The rack mounted light engine can be positioned in an electronics component rack such a light distribution system using hollow light ducts may distribute the light over a large area, such as a data center. Such a light distribution can use a generated light more efficiently by directing the light to the fronts or backs of the electronics cabinet, rather than for general room illumination.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: August 1, 2017
    Assignee: 3M Innovative Properties Company
    Inventor: Karl J. L. Geisler
  • Publication number: 20170211794
    Abstract: A lighting system comprising a light engine, a duct connected to the light engine defining a light transport passage for transporting light emitted from the light engine along a propagation direction through the duct, one or more light output surfaces on the duct through which light is emitted, the light engine comprising arranged sequentially in a single file: a light collimator having an output end arranged to face the light transport passage, a LED light source arranged to direct light into an input end of the light collimator, and a heat sink thermally coupled to the LED light source.
    Type: Application
    Filed: August 21, 2015
    Publication date: July 27, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Sheldon B. Ruiz, Andrew T. Tio, Chong Yang Ong, Kar Yam Tay, Karl J. L. Geisler, David G. Freier
  • Publication number: 20170175978
    Abstract: A light engine having an array of light horns. Each light horn has a narrow end, an open wide end, and side walls extending from the narrow end to the wide end with the side walls shaped as truncated pyramids. One or more LEDs are located at the narrow end of each of the light horns with each of the light horns providing substantially collimated light from the LEDs at the wide end.
    Type: Application
    Filed: March 20, 2015
    Publication date: June 22, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Karl J. L. Geisler, Vadim N. Savvateev, Michael A. Meis, David G. Freier
  • Patent number: 9683718
    Abstract: A light duct elbow having two light conduits capable of transporting light along two different propagation directions. A light diverter is located between the light conduits and has a reflector for directing light along the light conduits. In the light duct elbow, a light ray propagating within a collimation angle in the first light conduit that intersects the reflector is diverted to a second light ray propagating within the collimation angle in the second light conduit.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: June 20, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Karl J. L. Geisler, David G. Freier, Thomas R. Corrigan
  • Publication number: 20170038018
    Abstract: The present disclosure describes a control scheme for actively detecting the presence of a pedestrian which triggers the lighting of a bollard-style luminaire, methods for crosswalk illumination using the bollard-style luminaires, and methods of communication between bollard-style luminaires. The present disclosure further describes actively monitoring for vehicles and indicating safe passage, through lighting feedback on a pedestrian crosswalk or other walkway. The bollard luminaire includes a design that generally confines light to illuminate the crosswalk and the pedestrian in the crosswalk, such that light that could produce glare for the pedestrian and/or a driver approaching the crosswalk is minimized.
    Type: Application
    Filed: April 14, 2015
    Publication date: February 9, 2017
    Inventors: Justin M. Johnson, Mark G. Mathews, Nicholas G. Amell, Karl J.L. Geisler
  • Publication number: 20170030538
    Abstract: The present disclosure describes light delivery and distribution components of a light duct that can be used as a luminaire, such as a bollard-style luminaire that can be useful for the illumination of pedestrian crosswalks, the light engine useful in the luminaire, and methods for making the light engine and the luminaire. The present disclosure further describes methods for crosswalk illumination using the bollard-style luminaires, and methods of communication between bollard luminaires. The bollard luminaire includes a design that generally confines light to illuminate the crosswalk and the pedestrian in the crosswalk, such that light that could produce glare for the pedestrian and/or a driver approaching the crosswalk is minimized.
    Type: Application
    Filed: April 7, 2015
    Publication date: February 2, 2017
    Inventors: Karl J.L. Geisler, Glendon D. Kappel, David G. Freier, Mark G. Mathews, Nicholas G. Amell, Scott E. Simons
  • Patent number: 9464773
    Abstract: The present disclosure provides a novel construction for an illuminated light splitter in a mirror-lined light duct. In particular, the present disclosure addresses the ability to split partially collimated light travelling through a light duct into two different light ducts using light diverters, while extracting a portion of the light from each of the light ducts and also from the common intersection region. In some cases, the visual appearance of the illumination in the intersection region can appear non-uniform due to the presence of the light diverters, and the present disclosure provides an illuminated light duct splitter (100, 200, 300) configuration that homogenizes the output from the illuminated duct within the intersection region (117, 217, 317).
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: October 11, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Karl J. L. Geisler, David G. Freier
  • Publication number: 20160265744
    Abstract: A light duct elbow having two light conduits capable of transporting light along two different propagation directions. A light diverter is located between the light conduits and has a reflector for directing light along the light conduits. In the light duct elbow, a light ray propagating within a collimation angle in the first light conduit that intersects the reflector is diverted to a second light ray propagating within the collimation angle in the second light conduit.
    Type: Application
    Filed: March 12, 2015
    Publication date: September 15, 2016
    Inventors: Karl J.L. Geisler, David G. Freier, Thomas R. Corrigan
  • Patent number: 9354386
    Abstract: A solid state area light and spotlight having a solid state light source such as LEDs, tapered light guides, and external thermal guides. The area light includes a flared light guide, and the spotlight includes a light guide with a closed end. The light guides are coupled to the light source for receiving and distributing light from the light source with the distribution being based in part upon the shape and taper of the light guides. 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 25, 2013
    Date of Patent: May 31, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Raymond P. Johnston, Paul E. Humpal, Robert L. Brott, Karl J. L. Geisler, Martin J. Vos
  • Publication number: 20160123547
    Abstract: The present disclosure describes light delivery and distribution components of a light duct that can be used as a luminaire, such as a bollard-style luminaire that can be useful for the illumination of pedestrian crosswalks. The bollard luminaire includes a design that generally confines light to illuminate the cross-walk and the pedestrian in the crosswalk, such that light that could produce glare for the pedestrian and/or a driver approaching the crosswalk is minimized The delivery and distribution system (i.e., light duct and light duct extractor) can function effectively with any light source that is capable of delivering light which is substantially collimated about the longitudinal axis of the light duct, and which is also preferably substantially uniform over the inlet of the light duct.
    Type: Application
    Filed: May 27, 2014
    Publication date: May 5, 2016
    Inventors: Karl J.L. Geisler, David G. Freier
  • Publication number: 20160084458
    Abstract: The present disclosure provides a novel construction for an illuminated light splitter in a mirror-lined light duct. In particular, the present disclosure addresses the ability to split partially collimated light travelling through a light duct into two different light ducts using light diverters, while extracting a portion of the light from each of the light ducts and also from the common intersection region. In some cases, the visual appearance of the illumination in the intersection region can appear non-uniform due to the presence of the light diverters, and the present disclosure provides an illuminated light duct splitter (100, 200, 300) configuration that homogenizes the output from the illuminated duct within the intersection region (117, 217, 317).
    Type: Application
    Filed: April 4, 2014
    Publication date: March 24, 2016
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Karl J. L. Geisler, David G. Freier
  • Publication number: 20150316221
    Abstract: A film stack reflects incident light in some areas and transmits incident light in other areas, and it redirects incident light with one or more structured surfaces. The spatially variable reflection and transmission is achieved at least in part with reflective strips, and the reflective strips are attached to a first major surface of a structured optical film in the film stack. A second major surface of the structured optical film, opposite the first major surface, attaches to a substrate. The reflective strips attach to the structured optical film by a first discontinuous adhesive layer, having first adhesive areas. The structured optical film attaches to the substrate by a second discontinuous adhesive layer, having second adhesive areas. A major portion of the first adhesive areas, and a major portion of the second adhesive areas, is circumscribed by the reflective strips. The film stack may be part of a light duct.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 5, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Karl J.L. Geisler, Paul A. Nielsen
  • Patent number: D752773
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: March 29, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: David G. Freier, Thomas R. J. Corrigan, Karl J. L. Geisler, Glendon D. Kappel