Patents by Inventor Johannes Schubart

Johannes Schubart 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).

  • Method for determining visual acuity
    Patent number: 10368737
    Abstract: In a method for providing optotypes for determining distance visual acuity, a test subject position is provided for a test subject and a display surface at a display position. An individual test distance between the test subject position and the display position is, for example, detected automatically. An individual target variable is determined for optotypes which are matched to the detected individual test distance according to a predetermined role. Digital optotype image data are provided which contain optotypes scaled to the individual target variable. The digital optotype image data are displayed on the display surface.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: August 6, 2019
    Assignee: Rodenstock GmbH
    Inventors: Johannes Schubart, Peter Seitz, Killian Perani
  • METHOD FOR DETERMINING VISUAL ACUITY
    Publication number: 20170135571
    Abstract: In a method for providing optotypes for determining distance visual acuity, a test subject position is provided for a test subject and a display surface at a display position. An individual test distance between the test subject position and the display position is, for example, detected automatically. An individual target variable is determined for optotypes which are matched to the detected individual test distance according to a predetermined role. Digital optotype image data are provided which contain optotypes scaled to the individual target variable. The digital optotype image data are displayed on the display surface.
    Type: Application
    Filed: May 7, 2015
    Publication date: May 18, 2017
    Inventors: Johannes Schubart, Peter Seitz, Killian Perani