Patents by Inventor David A. Ender

David A. Ender 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: 10509157
    Abstract: Lightguides including pixelated images, and methods of making the lightguides are provided. The lightguides include an image formed on a major side which is illuminated for directly viewing. The image includes an elongated portion being pixelated into an array of pixels. Each of the pixels includes a single light extracting structure adapted to receive the propagating light within the lightguide along the optical axis and extract the received light transversely out of the lightguide.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: December 17, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Tao Liu, Brent A. Hedding, David C. Mercord, Brian W. Ostlie, David A. Ender
  • Publication number: 20180306964
    Abstract: Optically transparent lightguides (200) including light extractors (230) with a maximum dimension of a projected area of each light extractor onto the lightguide less than 100 microns are disclosed. Each light extractor may be disposed in a different corresponding area cell (220) The plurality of light extractors extract light uniformly over the entire active region (210). Embodiments with a nearest neighbour distance of at least 100 microns and with an image behind the lightguide are also disclosed.
    Type: Application
    Filed: November 16, 2015
    Publication date: October 25, 2018
    Inventors: Bing HAO, David A. ENDER
  • Publication number: 20180231708
    Abstract: Lightguides including pixelated images, and methods of making the lightguides are provided. The lightguides include an image formed on a major side which is illuminated for directly viewing. The image includes an elongated portion being pixelated into an array of pixels. Each of the pixels includes a single light extracting structure adapted to receive the propagating light within the lightguide along the optical axis and extract the received light transversely out of the lightguide.
    Type: Application
    Filed: August 25, 2016
    Publication date: August 16, 2018
    Inventors: Tao Liu, Brent A. Hedding, David C. Mercord, Brian W. Ostlie, David A. Ender
  • Publication number: 20180156957
    Abstract: Lightguides and methods for making and using the same are disclosed. A structured layer is provided with light extractors formed on a structured surface thereof. In some cases, the structured layer is removably laminated onto a substrate to provide uniform light extraction. In some cases, indicia are cut out of the structured layer and laminated onto the substrate. In some cases, the structured surface of the structured layer is selectively filled to form a pattern for light extraction. In some cases, a tool for producing a structured layer has a region of structures selectively filled to form a pattern for light extraction on the produced structured layer.
    Type: Application
    Filed: March 28, 2016
    Publication date: June 7, 2018
    Inventors: Jeremy K. Larsen, Bing Hao, David A. Ender, Tao Liu, Olester Benson, Joseph V. Crimando, Raveesh K. Shenoy, John C. Schultz
  • Patent number: 9989691
    Abstract: A lightguide (100) is disclosed. The lightguide includes a plurality of light extractors (120-123). Each light extractor is designed primarily to extract light that propagates within the lightguide and is incident on the light extractor from a first direction and reflect light that propagates within the lightguide and is incident on the light extractor from a second direction different than the first direction, toward another light extractor, where the other light extractor extracts the reflected light.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: June 5, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: David A. Ender
  • Patent number: 9823402
    Abstract: Illumination articles are described. More specifically, illumination articles that include a wearable device configured for wearing on the head of a wearer, a lightguide and light sources for emitting light into the lightguide are described. The illumination articles allow for wearable devices that uniformly illuminate a working area at high brightness without providing excessive glare to observers.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: November 21, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bing Hao, David A. Ender, Michael E. Griffin, Kevin W. Anderson, Gina M. Buccellato, Barry S. Carpenter
  • Patent number: 9816679
    Abstract: Light assembly having reflector, light source, an outer light cover, and a curved transflective surface. Embodiments of light assemblies described herein are useful, for example, as signs, backlights, displays, task lighting, luminaire, and vehicle (e.g., cars, trucks, airplanes, etc.) components.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: November 14, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Stephen K. Eckhardt, Barry S. Carpenter, David A. Ender, David J. Lundin, Mark E. Napierala, Jennifer J. Sahlin, David F. Slama, Karl A. Vick, John A. Wheatley
  • Publication number: 20170282104
    Abstract: Keyed fluid-handling devices comprise a fluid-handling device such as a filter, a bypass, or an adapter and an optical key. The optical keys are amenable to all types of filter component and can be readily retrofitted to existing designs. The optical keys may be formed from a variety of materials and combination of phases. That is, optical keys may comprise one or more solid materials, or perhaps may result from a combination of: solid materials, such as in transparent or semi-transparent polymers or glass; liquid fluids, such as water; and gaseous gaps such as an air gap. Optical keys may be light conduits or light guides. Filter manifolds comprise optical locks to ensure compatibility of the filter components.
    Type: Application
    Filed: November 9, 2015
    Publication date: October 5, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Scott A. Baum, Jeremy A. Schmoll, Michael E. Griffin, David A. Ender, Robert E. Astle, Justin M. Mazzoni
  • Patent number: 9599308
    Abstract: A taillight article (100) including an optically clear light guide (110) having an light emission front surface (112) and an opposing rear surface (114) and a side surface (118) separating the front surface (112) and the rear surface (114) is described. A first light source (120) is configured to direct light into the side surface (118) and indicate a first signal-function. A plurality of light extraction features (116) are on or within the optically clear light guide (110) and are configured to direct light from the first light source (120) out through the emission surface (112). A light reflection element (130) is spaced apart from the rear surface (114) and defines a cavity (135) that is observable by a viewer.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: March 21, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: David A. Ender, Jeremy K. Larsen, Jennifer J. Sahlin, Michael E. Griffin, Karl A. Vick, Bing Hao, Scott M. Schnobrich
  • Publication number: 20160299280
    Abstract: Lightguides are disclosed. In particular, lightguides including extractors with directionally dependent extraction efficiency are disclosed. The lightguide may include a series or array of directionally dependent light extractors. Certain configurations enabling the display of indicia and exemplary light extractor shapes are also disclosed.
    Type: Application
    Filed: December 30, 2014
    Publication date: October 13, 2016
    Inventors: David A. Ender, Michael A. Haase, Bing Hao, Michael E. Griffin, Jeremy K. Larsen, Karl A. Vick
  • Patent number: 9429691
    Abstract: Lightguides, devices incorporating lightguides, processes for making lightguides, and tools used to make lightguides are described. A lightguide includes light extractors arranged in a plurality of regions on a surface of the lightguide. The orientation of light extractors in each region is arranged to enhance uniformity and brightness across a surface of the lightguide and to provide enhanced defect hiding. The efficiency of the light extractors is controlled by the angle of a given light extractor face with respect to a light source illuminating the light guide.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: August 30, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Tzu-Chen Lee, David A. Ender, Guoping Mao, Jun-Ying Zhang, Jaime B. Willoughby
  • Patent number: 9423297
    Abstract: Optical devices (100) that contain a sensor (140) are described. More particularly, optical devices that contain a light source (120), cavity (110) and sensor (140), in which the optical device (100) may provide an optimal light output from an output surface (112) of the cavity (110) based on various characteristics of the light are described. Additionally, methods of making and using such optical devices as well as arrays of such optical devices are disclosed.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: August 23, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael E. Griffin, David A. Ender
  • Publication number: 20160215950
    Abstract: A taillight article (100) including an optically clear light guide (110) having an light emission front surface (112) and an opposing rear surface (114) and a side surface (118) separating the front surface (112) and the rear surface (114) is described. A first light source (120) is configured to direct light into the side surface (118) and indicate a first signal-function. A plurality of light extraction features (116) are on or within the optically clear light guide (110) and are configured to direct light from the first light source (120) out through the emission surface (112). A light reflection element (130) is spaced apart from the rear surface (114) and defines a cavity (135) that is observable by a viewer.
    Type: Application
    Filed: December 10, 2013
    Publication date: July 28, 2016
    Inventors: David A. Ender, Jeremy K. Larsen, Jennifer J. Sahlin, Michael E. Griffin, Karl A. Vick, Bing Hao, Scott M. Schnobrich
  • Publication number: 20160170119
    Abstract: Illumination articles are described. More specifically, illumination articles that include a wearable device configured for wearing on the head of a wearer, a lightguide and light sources for emitting light into the lightguide are described. The illumination articles allow for wearable devices that uniformly illuminate a working area at high brightness without providing excessive glare to observers. The disclosed illumination article comprises: a wearable device configured for wearing on the head of a wearer, a lightguide disposed on the wearable device, wherein the lightguide is elongated and has a first end and a second end opposite the first end, and a first light source positioned at the first end, for emitting light into the lightguide.
    Type: Application
    Filed: October 16, 2013
    Publication date: June 16, 2016
    Inventors: Bing Hao, David A. Ender, Michael E. Griffin, Kevin W. Anderson, Gina M. Buccellato, Barry S. Carpenter
  • Patent number: 9329326
    Abstract: Light guides comprising light extraction structure arrays and articles comprising such light guides are described.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: May 3, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Charles A. Marttila, Charles D. Hoyle, David A. Ender, Jaime B. Willoughby, Robert J. DeVoe
  • Publication number: 20160047521
    Abstract: Light assembly having reflector, light source, an outer light cover, and a curved transflective surface. Embodiments of light assemblies described herein are useful, for example, as signs, backlights, displays, task lighting, luminaire, and vehicle (e.g., cars, trucks, airplanes, etc.) components.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Inventors: Stephen K. Eckhardt, Barry S. Carpenter, David A. Ender, David J. Lundin, Mark E. Napierala, Jennifer J. Sahlin, David F. Slama, Karl A. Vick, John A. Wheatley
  • Patent number: 9261643
    Abstract: Lightguide is disclosed. The lightguide includes a staircase shape optical construction that includes a plurality of light reflecting risers. At least two of the risers include non-parallel light reflecting portions.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: February 16, 2016
    Assignee: 3M Innovative Properties Company
    Inventor: David A. Ender
  • Publication number: 20150362152
    Abstract: Light assembly having reflector, a light source, an outer light cover having a first color zone and a second, different color or clear zone, and an inner lens with a transflective surface. Embodiments of light assemblies described herein are useful, for example, as signs, backlights, displays, task lighting, luminaire, and vehicle (e.g., cars, trucks, airplanes, etc.) components. Vehicle comprising light assemblies include those where the light assembly is a vehicle tail light assembly.
    Type: Application
    Filed: August 26, 2015
    Publication date: December 17, 2015
    Inventors: Timothy V. Stagg, David A. Ender, Mark E. Napierala, Barry S. Carpenter
  • Patent number: 9200775
    Abstract: Light assembly (10) having reflector (16), light source (18), an outer light cover (12), and a curved transflective surface (15). Embodiments of light assemblies described herein are useful, for example, as signs, backlights, displays, task lighting, luminaire, and vehicle (e.g., cars, trucks, airplanes, etc.) components. Vehicle comprising light assemblies include those where the light assembly is a vehicle tail light assembly.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: December 1, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Stephen K. Eckhardt, Barry S. Carpenter, David A. Ender, David J. Lundin, Mark E. Napierala, Jennifer J. Sahlin, David F. Slama, Karl A. Vick, John A. Wheatley
  • Patent number: 9200763
    Abstract: Flexible lighting assemblies (100) are disclosed. Specifically, flexible lighting assemblies that are made up of a flexible cable (102), a plurality of light emitting diodes (112), and a plurality of transparent light distribution segments (116) that distribute light along the length of the cable by deflectors positioned over the light emitting diodes. The lighting assembly allows for flexible lighting without the glare and non-uniformity problems often associated with flexible lighting.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: December 1, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Scott M. Schnobrich, Bing Hao, David A. Ender