Patents by Inventor Doeke Jolt Oostra

Doeke Jolt Oostra 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).

  • Publication number: 20180335619
    Abstract: An electrowetting optical element, having a first electrode layer stack and a second electrode layer stack. Each layer stack has an electrode for applying a voltage to the electrodes for rearranging polar liquid relative to non-polar liquid. A containment space is formed between the first and second electrode layer stack. One or more cell walls extend between the electrode stacks for defining sides of the containment space forming cells. The electrowetting optical element further includes a retroreflective layer for reflecting incident light back through the element.
    Type: Application
    Filed: October 28, 2016
    Publication date: November 22, 2018
    Inventors: Hermanus FEIL, Doeke Jolt OOSTRA
  • Patent number: 9885826
    Abstract: Optical wave guide panel for visualization of an image, wherein the panel has an image interface surface for interfacing with an image to be visually presented and a viewing interface surface opposite the image interface surface for reviewing the image located at the image interface surface. The panel has at least one boundary, and is fabricated from a transparent solid material. The panel is provided with a pattern of grooves and to the image interface surface, extending at lease partially into the panel between image interface surface and the viewing interface surface of the panel. The pattern of grooves comprises at least one groove following a contour of the at least one boundary of the panel.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: February 6, 2018
    Assignee: MIORTECH HOLDING B.V.
    Inventors: Hermanus Feil, Doeke Jolt Oostra
  • Publication number: 20160245995
    Abstract: Optical wave guide panel for visualization of an image, wherein the panel has an image interface surface for interfacing with an image to be visually presented and a viewing interface surface opposite the image interface surface for reviewing the image located at the image interface surface. The panel has at least one boundary, and is fabricated from a transparent solid material. The panel is provided with a pattern of grooves and to the image interface surface, extending at lease partially into the panel between image interface surface and the viewing interface surface of the panel. The pattern of grooves comprises at least one groove following a contour of the at least one boundary of the panel.
    Type: Application
    Filed: October 1, 2014
    Publication date: August 25, 2016
    Inventors: Hermanus FEIL, Doeke Jolt OOSTRA
  • Publication number: 20110221950
    Abstract: A camera device comprising an image capturing element, one or more lens elements for projecting an object on the image capturing element, one or more spacer means for maintaining a predetermined distance between the lens and the image capturing element, and one or more lens substrates for carrying the lens, wherein the camera device further comprises an electrically variable focus polymer-stabilized liquid crystal lens.
    Type: Application
    Filed: March 11, 2011
    Publication date: September 15, 2011
    Inventors: Doeke Jolt Oostra, Koen Gerard Demeyer, Edwin Maria Wolterink