Patents by Inventor Andrei Razumov

Andrei Razumov 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).

  • Display apparatus and method of displaying using polarizers
    Patent number: 10495895
    Abstract: A display apparatus and a method of displaying, via the display apparatus. The display apparatus includes an image source for rendering an image, a projection screen facing a direction at a predefined angle to a direction in which the rendered image is projected from the image source, an exit optical element facing the projection screen, a first polarizing element facing the image source and arranged to polarize a projection of the rendered image at a first polarization orientation, a first optical element arranged to reflect the polarized projection towards the projection screen, wherein the projection screen is arranged to unpolarize the polarized projection whilst reflecting the unpolarized projection towards the exit optical element, and a second polarizing element positioned between the projection screen and the exit optical element, arranged to polarize the unpolarized projection at a second polarization orientation.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: December 3, 2019
    Assignee: VARJO TECHNOLOGIES OY
    Inventors: Evgeny Shirko, Andrei Razumov, Oiva Arvo Oskari Sahlsten
  • DISPLAY APPARATUS AND METHOD OF DISPLAYING USING POLARIZERS
    Publication number: 20180364493
    Abstract: A display apparatus and a method of displaying, via the display apparatus. The display apparatus includes an image source for rendering an image, a projection screen facing a direction at a predefined angle to a direction in which the rendered image is projected from the image source, an exit optical element facing the projection screen, a first polarizing element facing the image source and arranged to polarize a projection of the rendered image at a first polarization orientation, a first optical element arranged to reflect the polarized projection towards the projection screen, wherein the projection screen is arranged to unpolarize the polarized projection whilst reflecting the unpolarized projection towards the exit optical element, and a second polarizing element positioned between the projection screen and the exit optical element, arranged to polarize the unpolarized projection at a second polarization orientation.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 20, 2018
    Inventors: Evgeny Shirko, Andrei Razumov, Oiva Arvo Oskari Sahlsten