Patents by Inventor Zahra DERAFSHI

Zahra DERAFSHI 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).

  • Pattern stimulus for visual function testing
    Patent number: 10888221
    Abstract: A pattern stimulus system is described that includes a hemispherical concave surface, a plurality of illumination sources, and a controller. The illumination sources are arranged on the hemispherical concave surface in a plurality of annular rows and a plurality of radial columns. The control is configured to operate the illumination sources to display a checkerboard pattern by illuminating a first subset of the illumination sources and dimming a second subset of the illumination sources. The control is further configured to invert the checkerboard pattern by dimming the first subset of the illumination sources and illuminating the second subset of the illumination sources. Methods are also described for using the pattern stimulus system to evaluate a condition of the eye and to diagnose diseases of the eye.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: January 12, 2021
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: John Hetling, Zahra Derafshi, Shresta Patangay
  • PATTERN STIMULUS FOR VISUAL FUNCTION TESTING
    Publication number: 20190269317
    Abstract: A pattern stimulus system is described that includes a hemispherical concave surface, a plurality of illumination sources, and a controller. The illumination sources are arranged on the hemispherical concave surface in a plurality of annular rows and a plurality of radial columns. The control is configured to operate the illumination sources to display a checkerboard pattern by illuminating a first subset of the illumination sources and dimming a second subset of the illumination sources. The control is further configured to invert the checkerboard pattern by dimming the first subset of the illumination sources and illuminating the second subset of the illumination sources. Methods are also described for using the pattern stimulus system to evaluate a condition of the eye and to diagnose diseases of the eye.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 5, 2019
    Inventors: John HETLING, Zahra DERAFSHI, Shresta PATANGAY
  • Pattern stimulus for visual function testing
    Patent number: 10292580
    Abstract: A pattern stimulus system is described that includes a hemispherical concave surface, a plurality of illumination sources, and a controller. The illumination sources are arranged on the hemispherical concave surface in a plurality of annular rows and a plurality of radial columns. The control is configured to operate the illumination sources to display a checkerboard pattern by illuminating a first subset of the illumination sources and dimming a second subset of the illumination sources. The control is further configured to invert the checkerboard pattern by dimming the first subset of the illumination sources and illuminating the second subset of the illumination sources. Methods are also described for using the pattern stimulus system to evaluate a condition of the eye and to diagnose diseases of the eye.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: May 21, 2019
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: John Hetling, Zahra Derafshi, Shresta Patangay
  • PATTERN STIMULUS FOR VISUAL FUNCTION TESTING
    Publication number: 20160081544
    Abstract: A pattern stimulus system is described that includes a hemispherical concave surface, a plurality of illumination sources, and a controller. The illumination sources are arranged on the hemispherical concave surface in a plurality of annular rows and a plurality of radial columns. The control is configured to operate the illumination sources to display a checkerboard pattern by illuminating a first subset of the illumination sources and dimming a second subset of the illumination sources. The control is further configured to invert the checkerboard pattern by dimming the first subset of the illumination sources and illuminating the second subset of the illumination sources. Methods are also described for using the pattern stimulus system to evaluate a condition of the eye and to diagnose diseases of the eye.
    Type: Application
    Filed: April 18, 2014
    Publication date: March 24, 2016
    Inventors: John HETLING, Zahra DERAFSHI, Shresta PATANGAY