Patents by Inventor Fritz PASSMANN

Fritz PASSMANN 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 representing optotypes, optotype representation, associated use and image output device
    Patent number: 10143369
    Abstract: Method for optotype representation (2) via an image output device (4) for a visual acuity test and/or determination of a refraction, with optotypes (10) being displayed in a three-dimensional image (6) and an image separation occurring in such a way that the optotypes (10) are monocularly discernible in binocular conditions, wherein the three-dimensional image (6) is binocularly discernible.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: December 4, 2018
    Assignee: IPRO GmbH
    Inventors: Dieter Kalder, Fritz Passmann
  • METHOD FOR REPRESENTING OPTOTYPES, OPTOTYPE REPRESENTATION, ASSOCIATED USE AND IMAGE OUTPUT DEVICE
    Publication number: 20170164822
    Abstract: Method for optotype representation (2) via an image output device (4) for a visual acuity test and/or determination of a refraction, with optotypes (10) being displayed in a three-dimensional image (6) and an image separation occurring in such a way that the optotypes (10) are monocularly discernible in binocular conditions, wherein the three-dimensional image (6) is binocularly discernible.
    Type: Application
    Filed: November 17, 2014
    Publication date: June 15, 2017
    Inventors: Dieter KALDER, Fritz PASSMANN