Carl-zeiss-stiftung

Carl Zeiss Meditec Ag

Carl Zeiss Ag

Carl Zeiss Surgical Gmbh

Dieter Quendt

Christoph Hauger

Helge Jess

Ulrich Gold

Markus Seesselberg

Joachim Steffen

Gerhard Gaida

Michael Haisch

Werner Nahm

Ludwin Monz

Hartmut Wolf

Dirk Brunner

Jurgen Liegel

Ralf Benninger

Ulrich Nagele

Ulrich N&auml;gele

A surgical microscope for observing an infrared fluorescence includes a camera systemhaving three chips, wherein infrared light emanating from an object is supplied to only one of the three camera chips via a dichroic beam splitter.

Surgical microscope for observing an infrared fluorescence and corresponding method

An optical viewing system () for viewing an object region has a display unit () which has a plurality of controllable display segments which make available color pulse sequences in order to generate a display image which is built up of a plurality of image points. The optical viewing system () includes a superposition unit () which superposes an image, which is made available by the display unit (), onto the image of an object region (). The optical viewing system has a camera unit () to which the superposed image of display unit () and object region () is supplied. The camera unit () has image sensors () whose light sensitivity is adjustable as a function of time. The light sensitivity of the image sensors () is matched to the color pulse sequence in such a manner that the image sensor () can detect at least two light pulses of different color from the color pulse sequence from a display segment.

Optical viewing system and method for operating the same

The invention is directed to an ophthalmologic surgical microscope system () for examining the eye of a patient. The ophthalmologic surgical microscope system includes a surgical microscope () as well as a carrier arrangement () wherein the surgical microscope () is accommodated so as to permit elevation adjustment in order to be able to adjust a work distance between the surgical microscope () and the eye of the patient. An ophthalmoscopic ancillary module () is connected to the surgical microscope and has an adjustable ophthalmoscopic magnifier system in order to adjust a distance between the ophthalmoscopic magnifier and the surgical microscope (). The ophthalmologic surgical microscope system () has a sensor system for measuring the distance of the surgical microscope () from the patient eye. The sensor system is configured as an OCT-measuring device.

Ophthalmologic surgical microscope system having an OCT-measuring device

An optical observation apparatus includes: an optical system which produces an image of an object being observed and a video device () for recording the image and producing an image signal. The video device () includes a first memory () for temporarily storing the image signal, a second memory () in data communication () with the first memory (), and a control device () in communication (A,B) with both memories () for controlling the storage procedure in the first memory and data transfer from the first to the second memory. The control device () controls the storage procedure and the data transfer so that overwriting of such data already stored for a given period of time in the first memory () is effected and that transfer of the content of the first memory () to the second memory () takes place as a reaction to a trigger signal.

Optical observation apparatus with video device

A process for balancing a video signal is set forth. In order to be able to utilize, with particular advantage in the medical field, processes that have been known for a long time, the video signal is balanced in a manner such that the color effect of an image, displayed by a monitor, of a white surface that is illuminated with a selected light source corresponds as closely as possible to the color effect of the original white surface that results from direct observation by the human eye.

Process for creating a color impression of a video image, and a processing device therefor

In a process for the display of three-dimensional video images, in which at least two associated stereoscopic left-hand and right-hand partial images are electro-optically sensed at a given read-in frequency and the partial images are then sequentially reproduced on a display, the sensing of the two partial images takes place with a constant delay time with respect to each other, so that a delay which remains constant is ensured between the image formation in the camera and the reproduction of the partial image.

Process and apparatus for displaying three-dimensional video images

In a microscope with an objective, a variable magnification system and an autofocus arrangement, the autofocus arrangement produces a projection beam path for the projection of an autofocus marking onto an observation object, and an imaging beam path which passes through an objective, for imaging on a detector the autofocus marking projected onto the observation object. The projection beam path and/or the imaging beam path then passes through the variable magnification system outside its optical axis.

Growing community of inventors

Esslingen, Germany

Dieter Quendt