Patents Assigned to Carl-Zeiss Stifting
  • Illuminating device for an operation microscope with optically-mechanically coupled observer tubes
    Patent number: 5856883
    Abstract: For optimizing the perception of the red reflex in eye operations, deflecting elements are arranged in the illuminating beam path in the illuminating device of an operation microscope with optically-mechanically coupled observer and co-observer tubes. The deflected illuminating beam pencils overlap, at least partially, the main observer observation beam paths and at least one of the co-observer observation beam paths.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: January 5, 1999
    Assignee: Carl-Zeiss Stifting
    Inventor: Ulrich Sander