Patents by Inventor Alastair J. Grant

Alastair J. Grant 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).

  • Optical displays
    Patent number: 10509241
    Abstract: An apparatus for providing an optical display includes an optical substrate for propagating light received from a light source, a first set of one or more switchable diffractive elements in the substrate, and a second set of one or more switchable diffractive elements in the substrate. Each diffractive element in the second set corresponds to a diffractive element in the first set. Each of the diffractive elements in the first and second sets is configured to switch between on and off states. One of the states is for diffracting light and the other state for allowing light to pass through. Each of the first set of diffractive elements is configured to diffract the light at an angle for propagation in the substrate. Each of the second set of diffractive elements is configured to diffract the light for display.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: December 17, 2019
    Assignees: ROCKWELL COLLINS, INC., DIGILENS INC.
    Inventors: Steven J. Robbins, James H. Stanley, Francois Raynal, Robert D. Brown, James M. Tedesco, Wyatt L. Hendrick, Milan M. Popovich, Jonathan D. Waldern, Alastair J. Grant
  • Optical displays
    Patent number: 8817350
    Abstract: An apparatus for providing an optical display includes an optical substrate for propagating light received from a light source, a first set of one or more switchable diffractive elements in the substrate, and a second set of one or more switchable diffractive elements in the substrate. Each diffractive element in the second set corresponds to a diffractive element in the first set. Each of the diffractive elements in the first and second sets is configured to switch between on and off states. One of the states is for diffracting light and the other state for allowing light to pass through. Each of the first set of diffractive elements is configured to diffract the light at an angle for propagation in the substrate. Each of the second set of diffractive elements is configured to diffract the light for display.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: August 26, 2014
    Assignee: Rockwell Collins, Inc.
    Inventors: Steven J. Robbins, James H. Stanley, Francois Raynal, Robert D. Brown, James M. Tedesco, Wyatt L. Hendrick, Milan M. Popovich, Jonathan D. Waldern, Alastair J. Grant