Patents by Inventor Christopher M. Buchholz

Christopher M. Buchholz 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).

  • Waveguide combiner system and method with less susceptibility to glare
    Patent number: 11314084
    Abstract: A system and method for a head up display (HUD) can mitigate glare. The head up display can include a waveguide combiner including an input grating and an output grating and a glare mitigator disposed to prevent glare through the output grating from reaching an eye box. The glare mitigator can be a shade, a diffuser, a dimming element, or other device for mitigating glare. The glare mitigator can be an active or passive glare mitigator.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: April 26, 2022
    Assignee: Rockwell Collins, Inc.
    Inventors: Eric P. Stratton, Christopher M. Buchholz, Christopher A. Keith, Kurt A. Stahl, Brandon E. Wilson
  • Waveguide combiner system and method with less susceptibility to glare
    Patent number: 10401620
    Abstract: A system and method for a head up display (HUD) can mitigate glare. The head up display can include a waveguide combiner including an input grating and an output grating and a glare mitigator disposed to prevent glare through the output grating from reaching an eye box. The glare mitigator can be a shade, a diffuser, a dimming element, or other device for mitigating glare. The glare mitigator can be an active or passive glare mitigator.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: September 3, 2019
    Assignee: ROCKWELL COLLINS, INC.
    Inventors: Eric P. Stratton, Christopher M. Buchholz, Christopher A. Keith, Kurt A. Stahl, Brandon E. Wilson
  • Head up display (HUD) using a bent waveguide assembly
    Patent number: 9507150
    Abstract: The head up display provides light from an image source. The head up display includes a waveguide assembly comprising a first waveguide for disposition at an angle with respect to a top surface of a glare shield and a second waveguide disposed at an angle with respect to the first waveguide. The first waveguide has a first diffractive coupler at a first end and a second waveguide has a second diffractive coupler at a second end. The first waveguide is positioned as a combiner and allows viewing of an outside scene and information from the image source. At least part of the first waveguide is disposed beneath the top surface of a glare shield.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: November 29, 2016
    Assignee: Rockwell Collins, Inc.
    Inventors: Eric P. Stratton, Christopher M. Buchholz, Robert D. Brown, Christopher A. Keith, James H. Stanley