Patents by Inventor Jonathan Brodd

Jonathan Brodd 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).

  • Head-up display with narrow band reflective polarizer
    Patent number: 7123418
    Abstract: A head-up display includes a projection system and a window having a target area where a reflective polarizer is positioned to reflect light from the projection system to a viewing area. Light from the projection system is p-polarized and strikes exposed window surface(s) at an acute angle to reduce or eliminate multiple or “ghost” images. The acute angle is closely matched to a Brewster angle of the exposed window surface(s). The reflective polarizer includes a multilayer stack with refractive indices of individual layers chosen to reflect p-polarized light substantially more than s-polarized light over a wide angular range that includes the acute angle. The reflective polarizer also can reflect infrared light to reduce cabin heating from solar radiation.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: October 17, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Michael F. Weber, Andrew J. Ouderkirk, John A. Wheatley, Jonathan Brodd
  • Head-up display with narrow band reflective polarizer
    Publication number: 20050270655
    Abstract: A head-up display includes a projection system and a window having a target area where a reflective polarizer is positioned to reflect light from the projection system to a viewing area. Light from the projection system is p-polarized and strikes exposed window surface(s) at an acute angle to reduce or eliminate multiple or “ghost” images. The acute angle is closely matched to a Brewster angle of the exposed window surface(s). The reflective polarizer includes a multilayer stack with refractive indices of individual layers chosen to reflect p-polarized light substantially more than s-polarized light over a wide angular range that includes the acute angle. The reflective polarizer also can reflect infrared light to reduce cabin heating from solar radiation.
    Type: Application
    Filed: July 29, 2005
    Publication date: December 8, 2005
    Inventors: Michael Weber, Andrew Ouderkirk, John Wheatley, Jonathan Brodd
  • Head-up display with polarized light source and wide-angle p-polarization reflective polarizer
    Patent number: 6952312
    Abstract: A head-up display includes a projection system and a window having a target area where a reflective polarizer is positioned to reflect light from the projection system to a viewing area. Light from the projection system is p-polarized and strikes exposed window surface(s) at an acute angle to reduce or eliminate multiple or “ghost” images. The acute angle is closely matched to a Brewster angle of the exposed window surface(s). The reflective polarizer includes a multilayer stack with refractive indices of individual layers chosen to reflect p-polarized light substantially more than s-polarized light over a wide angular range that includes the acute angle. The reflective polarizer also can reflect infrared light to reduce cabin heating from solar radiation.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: October 4, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Michael F. Weber, Andrew J. Ouderkirk, John A. Wheatley, Jonathan Brodd
  • Head-up display with polarized light source and wide-angle p-polarization reflective polarizer
    Publication number: 20040135742
    Abstract: A head-up display includes a projection system and a window having a target area where a reflective polarizer is positioned to reflect light from the projection system to a viewing area. Light from the projection system is p-polarized and strikes exposed window surface(s) at an acute angle to reduce or eliminate multiple or “ghost” images. The acute angle is closely matched to a Brewster angle of the exposed window surface(s). The reflective polarizer includes a multilayer stack with refractive indices of individual layers chosen to reflect p-polarized light substantially more than s-polarized light over a wide angular range that includes the acute angle. The reflective polarizer also can reflect infrared light to reduce cabin heating from solar radiation.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 15, 2004
    Inventors: Michael F. Weber, Andrew J. Ouderkirk, John A. Wheatley, Jonathan Brodd