Patents by Inventor Sergiy I. Valyukh

Sergiy I. Valyukh 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).

  • Cholesteric liquid crystal structure
    Patent number: 9046729
    Abstract: A liquid crystal optical device that includes a first substrate layer that is substantially flat and a second substrate layer that is substantially flat and parallel to the first substrate layer. The liquid crystal optical device further includes a layer of cholesteric liquid crystal disposed between the first substrate layer and the second substrate layer, where the layer of cholesteric liquid crystal is arranged in domains, each domain having a helical axis, wherein the helical axes of the domains have a plurality of orientations relative to an orientation of the first and second substrate layers, and where a wavefront of a light wave having a wavelength within a range of wavelengths changes after reflecting from the layer of cholesteric liquid crystal.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: June 2, 2015
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Sergiy I. Valyukh, Vladimir Grigorievich Chigrinov, Hoi Sing Kwok, Iryna V. Valyukh