Patents by Inventor Pierr-Marc Allemand

Pierr-Marc Allemand 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: 8610992
    Abstract: A variable transmission window includes a first substrate having a first transparent conductor coated surface and a second substrate having a second transparent conductor coated surface. The second substrate is positioned relative to the first substrate with the first and second transparent conductor coated surfaces facing each other. An electrochromic medium is disposed between the first and second substrates whereby the transmission of light through the electrochromic medium is changed when an electrical potential is applied thereto. The electrochromic medium includes a cross-linked film. The window may be one of (i) an aeronautical glazing and (ii) a vehicle glazing, and/or the window may be a large area glazing of an area of at least 99 square inches.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: December 17, 2013
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig A. Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Patent number: 8559093
    Abstract: An electrochromic mirror reflective element suitable for use in a rearview mirror assembly of a vehicle includes first and second substrates having an electrochromic medium disposed therebetween and bounded by a perimeter seal. A perimeter coating is disposed at a second surface of the first substrate proximate at least a perimeter portion of the first substrate. The perimeter coating generally conceals the perimeter seal from view by a person viewing a first surface of the first substrate and through the first substrate. An at least partially reflective stack of thin films is disposed at least a portion of a third surface of the second substrate. The perimeter seal is at least partially visible to a person viewing a fourth surface of the second substrate and through the second substrate.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: October 15, 2013
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig A. Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Patent number: 8294975
    Abstract: An automotive rearview mirror assembly includes an electrochromic reflective element having a transparent electrical conductor disposed at a second surface of a first substrate and a mirror reflector disposed at a third surface of a second substrate. The mirror assembly includes electrochromic mirror dimming circuitry for controlling dimming of the electrochromic medium. The mirror assembly may include one or more features and at least one of the features may share a component with the electrochromic mirror dimming circuitry and/or share circuitry with the electrochromic mirror dimming circuitry. The mirror assembly may include a video camera and/or an on-demand display viewable through the mirror reflector by the driver of the equipped vehicle when displaying information and substantially non-viewable by the driver of the equipped vehicle when not displaying information.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: October 23, 2012
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig A. Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Publication number: 20120206790
    Abstract: An electrochromic mirror reflective element suitable for use in a rearview mirror assembly of a vehicle includes first and second substrates having an electrochromic medium disposed therebetween and bounded by a perimeter seal. A perimeter coating is disposed at a second surface of the first substrate proximate at least a perimeter portion of the first substrate. The perimeter coating generally conceals the perimeter seal from view by a person viewing a first surface of the first substrate and through the first substrate. An at least partially reflective stack of thin films is disposed at least a portion of a third surface of the second substrate. The perimeter seal is at least partially visible to a person viewing a fourth surface of the second substrate and through the second substrate.
    Type: Application
    Filed: April 20, 2012
    Publication date: August 16, 2012
    Applicant: DONNELLY CORPORATION
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig Allen Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Patent number: 8164817
    Abstract: A method of forming a mirrored bent cut glass shape includes bending a flat sheet of glass to establish a curved sheet of glass. A machine vision system determines a surface profile of the curved sheet of glass, and a computer numerical controlled cutting tool is positioned at the curved sheet of glass and its cutting wheel is maintained at or close to 90 degrees to the tangential plane of the curved sheet of glass. At least one of (a) the cutting wheel and (b) the curved sheet of glass is controlled in three dimensions to cut a bent cut glass shape from the curved sheet of glass, and such controlling is, at least in part, responsive to the surface profile of the curved sheet of glass. A mirror reflector is established at a surface of the bent cut glass shape to form a mirrored bent cut glass shape.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: April 24, 2012
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig A. Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Publication number: 20110045172
    Abstract: A method of forming a mirrored bent cut glass shape includes bending a flat sheet of glass to establish a curved sheet of glass. A machine vision system determines a surface profile of the curved sheet of glass, and a computer numerical controlled cutting tool is positioned at the curved sheet of glass and its cutting wheel is maintained at or close to 90 degrees to the tangential plane of the curved sheet of glass. At least one of (a) the cutting wheel and (b) the curved sheet of glass is controlled in three dimensions to cut a bent cut glass shape from the curved sheet of glass, and such controlling is, at least in part, responsive to the surface profile of the curved sheet of glass. A mirror reflector is established at a surface of the bent cut glass shape to form a mirrored bent cut glass shape.
    Type: Application
    Filed: October 22, 2010
    Publication date: February 24, 2011
    Applicant: DONNELLY CORPORATION
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig Allen Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Patent number: 7821697
    Abstract: An exterior reflective mirror element suitable for a vehicle includes a transparent glass substrate having a reflector and a visual indicator display disposed to the rear of the substrate. The visual indicator display may be part of a blind spot detection and display system of the vehicle wherein the visual indicator display is actuated to emit light responsive to a detection by a blind spot detection detector of the equipped vehicle of an overtaking vehicle in a side lane adjacent the side of the equipped vehicle. The visual indicator display includes at least a first indicator at a first location to the rear of the exterior reflective mirror element. A first portion of the reflector may be at least partially removed at the first location in order to establish an at least partially transmissive first portion of the exterior reflective mirror element at the first location.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: October 26, 2010
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig A. Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Publication number: 20100110523
    Abstract: An automotive rearview mirror assembly includes an electrochromic reflective element having a transparent electrical conductor disposed at a second surface of a first substrate and a mirror reflector disposed at a third surface of a second substrate. The mirror assembly includes electrochromic mirror dimming circuitry for controlling dimming of the electrochromic medium. The mirror assembly may include one or more features and at least one of the features may share a component with the electrochromic mirror dimming circuitry and/or share circuitry with the electrochromic mirror dimming circuitry. The mirror assembly may include a video camera and/or an on-demand display viewable through the mirror reflector by the driver of the equipped vehicle when displaying information and substantially non-viewable by the driver of the equipped vehicle when not displaying information.
    Type: Application
    Filed: January 11, 2010
    Publication date: May 6, 2010
    Applicant: DONNELLY CORPORATION
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig A. Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Publication number: 20100053723
    Abstract: An exterior reflective mirror element suitable for a vehicle includes a transparent glass substrate having a reflector and a visual indicator display disposed to the rear of the substrate. The visual indicator display may be part of a blind spot detection and display system of the vehicle wherein the visual indicator display is actuated to emit light responsive to a detection by a blind spot detection detector of the equipped vehicle of an overtaking vehicle in a side lane adjacent the side of the equipped vehicle. The visual indicator display includes at least a first indicator at a first location to the rear of the exterior reflective mirror element. A first portion of the reflector may be at least partially removed at the first location in order to establish an at least partially transmissive first portion of the exterior reflective mirror element at the first location.
    Type: Application
    Filed: November 9, 2009
    Publication date: March 4, 2010
    Applicant: DONNELLY CORPORATION
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig Allen Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Patent number: 7643200
    Abstract: An exterior reflective mirror element suitable for a vehicle includes a transparent glass substrate having a reflector and a visual indicator display disposed to the rear of the substrate. The visual indicator display may be part of a blind spot detection and display system of the vehicle wherein the visual indicator display is actuated to emit light responsive to a detection by a blind spot detection detector of the equipped vehicle of an overtaking vehicle in a side lane adjacent the side of the equipped vehicle. The visual indicator display includes at least a first indicator at a first location to the rear of the exterior reflective mirror element. A first portion of the reflector may be at least partially removed at the first location in order to establish an at least partially transmissive first portion of the exterior reflective mirror element at the first location.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: January 5, 2010
    Assignee: Donnelly Corp.
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig A. Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Patent number: 7589883
    Abstract: An exterior mirror suitable for use in a vehicular exterior rearview mirror assembly includes a reflective mirror element having a light transmitting substrate with a mirror reflector having a metallic reflective layer coated thereon. A visual indicator display is disposed to the rear of the light transmitting substrate and actuated to emit light when powered. Light emitted by light sources of the display passes through the light transmitting substrate so as to be viewed by a driver of the vehicle equipped with the reflective mirror element. The mirror element has portions of the metallic reflective layer at least partially removed by laser scribing to establish at least partially light transmissive portions of the mirror reflector so that light emitted by light sources, when powered, passes through the respective at least partially light transmissive portions to be viewed by a viewer viewing from the front of the reflective mirror element.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: September 15, 2009
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig A. Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Publication number: 20080291522
    Abstract: An exterior reflective mirror element suitable for a vehicle includes a transparent glass substrate having a reflector and a visual indicator display disposed to the rear of the substrate. The visual indicator display may be part of a blind spot detection and display system of the vehicle wherein the visual indicator display is actuated to emit light responsive to a detection by a blind spot detection detector of the equipped vehicle of an overtaking vehicle in a side lane adjacent the side of the equipped vehicle. The visual indicator display includes at least a first indicator at a first location to the rear of the exterior reflective mirror element. A first portion of the reflector may be at least partially removed at the first location in order to establish an at least partially transmissive first portion of the exterior reflective mirror element at the first location.
    Type: Application
    Filed: April 3, 2008
    Publication date: November 27, 2008
    Applicant: DONNELLY CORPORATION
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig Allen Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Publication number: 20080094685
    Abstract: An exterior mirror suitable for use in a vehicular exterior rearview mirror assembly includes a reflective mirror element having a light transmitting substrate with a mirror reflector having a metallic reflective layer coated thereon. A visual indicator display is disposed to the rear of the light transmitting substrate and actuated to emit light when powered. Light emitted by light sources of the display passes through the light transmitting substrate so as to be viewed by a driver of the vehicle equipped with the reflective mirror element. The mirror element has portions of the metallic reflective layer at least partially removed by laser scribing to establish at least partially light transmissive portions of the mirror reflector so that light emitted by light sources, when powered, passes through the respective at least partially light transmissive portions to be viewed by a viewer viewing from the front of the reflective mirror element.
    Type: Application
    Filed: December 17, 2007
    Publication date: April 24, 2008
    Applicant: Donnelly Corporation
    Inventors: Desaraju Varaprasad, Mingtang Zhao, Craig Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall Lynam
  • Patent number: 7349144
    Abstract: An exterior electrochromic reflective mirror element for a vehicular exterior rearview mirror assembly comprises an electrochromic cross-linked polymeric solid film disposed between a first substrate and a second substrate. The electrochromic cross-linked polymeric solid film contacts a transparent conductive layer of the first substrate and a conductive layer comprising a metallic reflective layer of the second substrate. A visual indicator display is disposed to the rear of said second substrate and is part of a blind spot detection and display system and is actuated to emit light responsive to a detection of another overtaking vehicle in a side lane. Light emitted by the visual indicator display passes through the second substrate, through the electrochromic cross-linked polymeric solid film and through the first substrate to be viewed by a driver of the vehicle equipped with the exterior electochromic reflective mirror element.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: March 25, 2008
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtao Zhao, Craig Allen Dornan, Anoop Agrawal, Niall R. Lynam, Pierr-Marc Allemand
  • Publication number: 20070184284
    Abstract: An exterior electrochromic reflective mirror element for a vehicular exterior rearview mirror assembly comprises an electrochromic cross-linked polymeric solid film disposed between a first substrate and a second substrate. The electrochromic cross-linked polymeric solid film contacts a transparent conductive layer of the first substrate and a conductive layer comprising a metallic reflective layer of the second substrate. A visual indicator display is disposed to the rear of said second substrate and is part of a blind spot detection and display system and is actuated to emit light responsive to a detection of another overtaking vehicle in a side lane. Light emitted by the visual indicator display passes through the second substrate, through the electrochromic cross-linked polymeric solid film and through the first substrate to be viewed by a driver of the vehicle equipped with the exterior electrochromic reflective mirror element.
    Type: Application
    Filed: January 16, 2007
    Publication date: August 9, 2007
    Applicant: Donnelly Corporation
    Inventors: Desaraju Varaprasad, Mingtag Zhao, Craig Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall Lynam
  • Patent number: 7202987
    Abstract: An electrochromic mirror device suitable for use in a vehicle comprises a first transparent substrate having a transparent conductive layer on a surface thereof and a second substrate having a conductive layer on a surface thereof. The conductive layer of the first substrate opposes the second conductive layer of the second substrate in a spaced-apart relationship thereby forming an interpane distance between the substrates. A boundary seal is interposed between the first and second substrates spacing apart the substrates and forming a cavity wherein the interpane distance is at least about 10 microns. An electrochromic cross-linked polymeric solid film is disposed within the cavity. The electrochromic cross-linked solid polymeric film is formed from an electrochromic monomer composition that includes at least one cathodic electrochromic compound. The second conductive layer comprises a metallic reflective layer.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: April 10, 2007
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtao Zhao, Craig Allen Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Publication number: 20050079326
    Abstract: An electrochromic mirror device suitable for use in a vehicle comprises a first transparent substrate having a transparent conductive layer on a surface thereof and a second substrate having a conductive layer on a surface thereof. The conductive layer of the first substrate opposes the second conductive layer of the second substrate in a spaced-apart relationship thereby forming an interpane distance between the substrates. A boundary seal is interposed between the first and second substrates spacing apart the substrates and forming a cavity wherein the interpane distance is at least about 10 microns. An electrochromic cross-linked polymeric solid film is disposed within the cavity. The electrochromic cross-linked solid polymeric film is formed from an electrochromic monomer composition that includes at least one cathodic electrochromic compound. The second conductive layer comprises a metallic reflective layer.
    Type: Application
    Filed: October 1, 2004
    Publication date: April 14, 2005
    Applicant: Donnelly Corporation
    Inventors: Desaraju Varaprasad, Mingtao Zhao, Craig Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall Lynam
  • Patent number: 6855431
    Abstract: The present invention relates to electrochromic polymeric solid films, manufacturing electrochromic devices using such solid films and processes for making such solid films and devices. The electrochromic polymeric solid films of the present invention exhibit beneficial properties and characteristics, especially when compared to known electrochromic media. The electrochromic polymeric solid films are transformed in situ from a low viscosity electrochromic monomer composition by exposure to electromagnetic radiation, and in so doing minimum shrinkage occurs. The electrochromic polymeric solid films of the present invention also perform well under prolonged coloration, outdoor weathering and all-climate exposure, and provide an inherent safety aspect not known to electrochromic media heretofore.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: February 15, 2005
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig Allen Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Publication number: 20030087107
    Abstract: The present invention relates to electrochromic polymeric solid films, manufacturing electrochromic devices using such solid films and processes for making such solid films and devices. The electrochromic polymeric solid films of the present invention exhibit beneficial properties and characteristics, especially when compared to known electrochromic media. The electrochromic polymeric solid films are transformed in situ from a low viscosity electrochromic monomer composition by exposure to electromagnetic radiation, and in so doing minimum shrinkage occurs. The electrochromic polymeric solid films of the present invention also perform well under prolonged coloration, outdoor weathering and all-climate exposure, and provide an inherent safety aspect not known to electrochromic media heretofore.
    Type: Application
    Filed: July 16, 2002
    Publication date: May 8, 2003
    Applicant: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtao Zhao, Craig Allen Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam
  • Patent number: 6420036
    Abstract: The present invention relates to electrochromic ploymeric solid films, manufacturing electrochromic devices using such solid films and processes for making such solid films and devices. The electrochromic polymeric solid films of the present invention exhibit beneficial properties and characteristics, especially when compared to known electrochromic media. The electrochromic polymeric solid films are transformed in situ from a low viscosity electrochromic monomer composition by exposure to electromagnetic radiation, and in so doing minimum shrinkage occurs. The electrochromic polymeric solid films of the present invention also perform will under prolonged coloration, outdoor weathering and all-climate exposure, and provide an inherent safety aspect not known to electrochromic media heretofore.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: July 16, 2002
    Assignee: Donnelly Corporation
    Inventors: Desaraju V. Varaprasad, Mingtang Zhao, Craig Allen Dornan, Anoop Agrawal, Pierr-Marc Allemand, Niall R. Lynam