Patents by Inventor John E. Chad

John E. Chad 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).

  • Super-oscillatory lens apparatus and methods
    Patent number: 9007451
    Abstract: An imaging apparatus is disclosed which uses a super-oscillatory lens to obtain sub-diffraction limit resolution. The super-oscillatory lens is arranged to receive a light beam from a light source, the lens having a pre-defined pattern to spatially modulate the light beam in amplitude and/or phase so that it focuses the light beam to a focus at a first focal point having a full width half maximum of less than half the wavelength. Collection optical elements are arranged to focus the first focal point to a second focal point conjugate to the first focal point. An object for imaging is scanned over the first focal point and a detector is arranged to collect light from a collection region centered on the second focal point.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: April 14, 2015
    Assignee: University of Southampton
    Inventors: Edward Thomas Foss Rogers, Nikolay Ivanovich Zheludev, John E Chad
  • SUPER-OSCILLATORY LENS APPARATUS AND METHODS
    Publication number: 20130235180
    Abstract: An imaging apparatus is disclosed which uses a super-oscillatory lens to obtain sub-diffraction limit resolution. The super-oscillatory lens is arranged to receive a light beam from a light source, the lens having a pre-defined pattern to spatially modulate the light beam in amplitude and/or phase so that it focuses the light beam to a focus at a first focal point having a full width half maximum of less than half the wavelength. Collection optical elements are arranged to focus the first focal point to a second focal point conjugate to the first focal point. An object for imaging is scanned over the first focal point and a detector is arranged to collect light from a collection region centered on the second focal point.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 12, 2013
    Inventors: Edward Thomas Foss Rogers, Nikolay Ivanovich Zheludev, John E. Chad