Patents by Inventor Aleksandr Georgievich Sobolev

Aleksandr Georgievich Sobolev 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).

  • Patent number: 9532037
    Abstract: The invention relates to the field of optoelectronics and display technology and can be used in high speed stereoscopic glasses when working with any type of 3D display, designed to operate with active stereo glasses with standard (60-160 Hz), high (hundreds of Hz) and ultrahigh (several kilohertz) frame rate. According to the invention in optical shutters of high-speed stereo glasses a layer of the helix-free ferroelectric liquid crystal (FLC) with optimized physical parameters is used. The technical result is an increase of the optical contrast of FLC shutters, reducing the amplitude of the control voltage.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: December 27, 2016
    Inventors: Igor Nikolaevich Kompanets, Aleksandr Lvovich Andreev, Vasiliy Aleksandrovich Ezhov, Aleksandr Georgievich Sobolev
  • Patent number: 9350983
    Abstract: The invention pertains to the display devices and can be used for displaying three-dimensional objects and scenes, particularly, in navigation, machine-aided drafting and engineering systems, for visualization of tomographic information and during complex operations in medicine, during modeling of three-dimensional problems in science and technology, in computer simulators and games, advertising, entertainment etc. Here the three-dimensional display is proposed with a volumetric screen, consisting of package of light-scattering liquid-crystal modulators, and with a video projector on the basis of microdisplay for generating images of three-dimensional object sections in the planes of light-scattering liquid-crystal modulators, where as the electrooptic medium in the light-scattering liquid-crystal modulators of the volumetric screen and in the microdisplay of video projector, the liquid crystals of smectic type with ferroelectric properties (FLC) under specified boundary conditions were chosen.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: May 24, 2016
    Inventors: Igor Nikolaevich Kompanets, Aleksandr Lvovich Andreev, Aleksandr Georgievich Sobolev
  • Publication number: 20160124281
    Abstract: The invention relates to the field of display technology, and can be used in systems for the free-dimensional representation of information. Active liquid-crystal 3D glasses are proposed which comprise a synchronization signal receiver, an independent power source, an electronic driver and two liquid-crystal shutters such that the liquid crystal in the latter is ferroelectric, wherein the boundary conditions for indicated liquid crystal, determined by a square coefficient of the anchoring energy of molecules in the liquid-crystal layer with the boundary surface of a dielectric or orienting coating, are related in a specific manner to the magnitude of the helix pitch and the thickness of the ferroelectric liquid crystal layer. A range is also proposed for selecting the thickness of the ferroelectric liquid-crystal layer and the condition for implementing the dielectric coating, a low-voltage power element and the electronic driver.
    Type: Application
    Filed: March 10, 2011
    Publication date: May 5, 2016
    Inventors: Igor Nikolaevich Kompanets, Aleksandr Lvovich Andreev, Vasily Aleksandrovich Ezhov, Aleksandr Georgievich Sobolev
  • Publication number: 20150304643
    Abstract: The invention relates to the field of optoelectronics and display technology and can be used in high speed stereoscopic glasses when working with any type of 3D display, designed to operate with active stereo glasses with standard (60-160 Hz), high (hundreds of Hz) and ultrahigh (several kilohertz) frame rate. According to the invention in optical shutters of high-speed stereo glasses a layer of the helix-free ferroelectric liquid crystal (FLC) with optimized physical parameters is used. The technical result is an increase of the optical contrast of FLC shutters, reducing the amplitude of the control voltage.
    Type: Application
    Filed: November 13, 2013
    Publication date: October 22, 2015
    Inventors: Igor Nikolaevich Kompanets, Aleksandr Lvovich Andreev, Vasiliy Aleksandrovich Ezhov, Aleksandr Georgievich Sobolev