Patents by Inventor Gunter Geiss

Gunter Geiss 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).

  • Slit lamp apparatus with peripheral illumination
    Patent number: 5196874
    Abstract: A split lamp apparatus includes a peripheral lighting arrangement (3) which can rotate about a vertical axis (5, 6) independently of other parts (1, 2) of the apparatus. In this way, the spot of light from the auxiliary lighting is always located in the focal plane of the slit lamp device (2) and of a stereomicroscope (1). The peripheral lighting arrangement can also be replaced by a laser light source.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: March 23, 1993
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Ortwin Muller, Gunter Geiss, Victor Stopar