Carl Zeiss Meditec Ag

Carl Zeiss Surgical Gmbh

Carl-zeiss-stiftung

Carl Zeiss Ag

Other

Carl Zeiss Meditec Gmbh

Carl-zeiss-stiftung Trading As Carl Zeiss

Peter Reimer

Christoph Hauger

Alfons Abele

Daniel Kolster

Franz Merz

Markus Seesselberg

Theo Lasser

Fritz Straehle

Heinz Abramowsky

Markus Bausewein

Artur Hoegele

Roland Brenner

Christian Beder

Christian Luecke

Martin Wiechmann

Andre Mueller

Stefan Ernsperger

Klaus Gottwaldt

Stefan Meinkuss

Peter Andrews

Gerhard Möller

Keith E O'Hara

Joachim Steffen

Xing Wei

Gerhard Gaida

Christoph Kuebler

Delbert Peter Andrews

Holger Matz

Helge Jess

Andreas Obrebski

Yue Qiu

Anja Seiwert

Ludwin Monz

Herbert Gross

Joachim Hug

Juergen Liegel

Margit Krause-Bonte

Robert Maag

Willi Ulrich

Gerhard Moeller

Peter Amend

Andrè Mueller

Fritz Strähle

Frank Keib

Martin Peschka

Gerhard Moller

Bruno Stich

Peter Schaffer

Christian Lücke

Manfred Heymann

Jürgen Liegel

Werner P&ouml;ltinger

Manuel Steidle

André Mueller

André Müller

Fumio Takanashi

Andreas Negele

Jochen M Horn

Michel Pérez

Thomas Kratzer

Bernd Spruck

Hans Adolf Von Derschau

Walter Wrobel

Manfred Freese

Josef Schlosser

Andrè MÜLLER

Stefan Meinkuß

Yue Qui

Fritz Strähle Dr

Markus Seeßelberg

Andrè Müller

Werner Pöltinger

A surgical microscope includes an optical assembly to image an object plane with a microscope main objective system, through which a first stereoscopic partial beam path with a first optical axis and a second stereoscopic partial beam path with a second optical axis pass. An illumination device includes a light source assembly to provide illumination light in a luminous plane, with a radiant field stop, and an illumination optical unit which at least partially images a luminous object arranged in the luminous plane in the illumination beam path into a luminous image plane located in the microscope main objective system or for the vertical distance z of which from the microscope main objective system on the side facing the object region or the side facing away from the object region, in relation to a focal length f of the microscope main objective system, the following applies: z/f<10%.

Operating microscope having an illumination device

A laser-surgical apparatus includes a laser emitting laser light with a narrowband wavelength distribution, a digital image sensor or a plurality of digital image sensors that separately record(s) different color channels that represent mutually different spectral wavelength distributions with in each case one maximum corresponding to a specific spectral color and produce(s) separate pieces of image information for the individual color channels, and a graphics module for combining the separate pieces of image information into one color image. In addition, it includes a manipulation module for suppressing the laser light in the color image, which makes it possible to electronically manipulate the pieces of image information of the color channel the spectral wavelength distribution of which has the largest overlap with the narrowband wavelength distribution of the laser light before the separate pieces of image information are combined or during the combining of the separate pieces of image information.

Method for suppressing stray light, laser-surgical apparatus, optical observation device, and computer program

A light source for a surgical microscope includes a laser light source, first and second scattering elements defining first and second planes, respectively, and a collector optical device arranged between the first and second scattering elements with a focal length and a focus in the first plane. The laser light is focused on a first beam cross section with a first dimension in the first plane. The scattered beam emanating from the first scattering element is imaged at infinity with a first numerical aperture and produces a second beam cross section with a second dimension in the second plane. The second scattering element emits a beam of illumination light with a second numerical aperture at each point of the beam cross section in the second plane. The illumination light emanating from the second scattering element forms an illuminated field imageable into an object plane by an illumination optical device.

Light source for a surgical microscope

A method for establishing the refraction of an eye () by means of a refractometer () is provided, in which the current visual axis (S) of the eye () is established before establishing the refraction, the refractometer () is aligned with respect to the visual axis (S) of the eye () and the refraction is established after the alignment. The visual axis (S) of the eye () is established on the basis of the position of a Purkinje image of at least one light source () used to illuminate the eye and a relationship between the position of the Purkinje image and the visual axis (S).

Measurement system and method for establishing the refraction of an eye, the radius of curvature of the cornea or the internal pressure of an eye

An input coupling module selectively couples a beam path into a first or second stereoscopic component beam in a surgical microscope having an optical interface for guiding a beam path to be coupled-in. The input coupling module has a first beam splitter arranged in the first component beam and a second beam splitter arranged in the second component beam. The input coupling module contains an adjustable optics assembly, which selectively guides a beam path provided at the optical interface for coupling into the first or second component beam to the first beam splitter or the second beam splitter. The adjustable optics assembly includes an optical element displaceable by a linear movement from a first position to a second, position, and vice versa, for switching the beam path. The displaceable optical element is arranged in the beam path to be coupled-in in the first position and/or the second position.

Surgical microscope having optical interfaces

A microscope having an observation beam path including a main objective, an OCT device including a first detection beam path, a wavefront measuring device including a second detection beam path, a first, a second and a third optics group is provided, wherein the first detection beam path contains the main objective and the first to third optics group, and the first to third optics group forms an afocal imaging optical unit of the first detection beam path and the second detection beam path contains the main objective, the first optics group and the second optics group, and the main objective and the first and second optics group form an afocal imaging optical unit of the second detection beam path.

Microscope having an optical coherence tomography device

A surgical microscope, in particular an ophthalmic surgical microscope, includes a microscope imaging optical unit for imaging an object to be observed in an image plane along an optical imaging beam path, which passes through the microscope imaging optical unit, and a camera, which captures imaging of the object in the image plane. Further, the surgical microscope includes an optical wavefront encoding element that is positioned or positionable in the optical imaging beam path to influence an imaging light wavefront in the optical imaging beam path in such a way that a depth of field of the imaging of the object through the microscope imaging optical unit with the wavefront encoding element is reduced in relation to the depth of field of the imaging of the object through the microscope imaging optical unit without the wavefront encoding element.

Surgical microscope and method implemented with the surgical microscope

An optical observation unit () has an illumination apparatus () for illuminating an observation object (). The illumination apparatus () has a light source () emitting illumination light with a first color temperature, and a spectral filter () that can be inserted in the illumination beam path. The spectral filter () converts the illumination light with the first color temperature into illumination light with a second color temperature. The illumination apparatus further has an attenuator () that can be inserted in the illumination beam path in place of the spectral filter () and has a transmission characteristic that leads to an intensity reduction of the illumination light with the first color temperature that corresponds to the intensity reduction of the illumination light with the second color temperature by way of the spectral filter ().

Optical observation unit and method for ensuring an unchanging illumination intensity when changing the color temperature of the illumination

A surgical microscope for imaging structures of an eye includes: a front optical unit, an illumination device which has an illumination-radiation-emitting illumination source and which illuminates the retina of the eye with an illumination spot via an illumination beam path which extends through the front optical unit, a camera and an adjustable camera optical unit disposed upstream thereof, an imaging beam path which extends through the front optical unit and the camera optical unit, and a control device which controls the camera optical unit and sets the latter in such a way that the retina of the eye in the region of the illumination spot is imaged on the camera. The control device varies a focusing state of the camera optical unit and, as a result thereof, records a plurality of images of the retina in the region of the illumination spot, the images being focused in different depth planes, and establishes a refractive value of the eye from these images.

Surgical microscope

An illumination device for an optical viewing apparatus has a light source including a first individual light source and a second individual light source arranged in a plane. The first individual light source has a first midpoint and the second individual light source has a second midpoint. An axial direction is defined by a vector from the second midpoint to the first midpoint. An illumination optical unit defines an optical axis which is arranged perpendicularly to the plane and intersects the plane at an intersection point. The light source is imaged toward infinity by the illumination optical unit. The first individual light source has an extent along the axial direction. The midpoint is offset by an amount (&#x394;) in a positive direction along the axial direction relative to the intersection. The relationship 0.1*L&#x2266;&#x394;&#x2266;1*Lis satisfied for the offset.

Illumination device for an optical viewing apparatus

An illumination arrangement includes illumination optics defining an optical axis and a light source for generating at least one illumination beam path for illuminating an object field at a specific illumination angle with a viewing beam path. At least one mirror is provided in the illumination beam path for deflecting light from the light source and the mirror has a longitudinal extent along the optical axis. A light-emitting surface region of the light source is variable (x) perpendicular to the optical axis without movable components. The illumination optics are embodied in such a way for obtaining a desired illumination that an illumination pupil is imaged within the longitudinal extent of the mirror.

Illumination arrangement and surgical microscope incorporating the same

An illumination device for an optical viewing apparatus defines an illumination beam path and includes an illumination light source having mutually independently controllable individual light sources arranged in a first plane in a two-dimensional array. The illumination device defines an illumination beam path and includes illumination optics defining an optical axis. The illumination optics form a second plane conjugated with respect to the first plane. A diaphragm unit is arranged in the second plane. The diaphragm unit has a plurality of apertures and the apertures are assigned to corresponding ones of the individual light sources.

A coupling-in apparatus is provided for coupling light from a light-emitting diode () into a fiber entry end () of at least one optical fiber (). The coupling-in apparatus has a changing device () and a first light-guide element (-) arranged on the changing device (). The first light-guide element (-) has specific transmission properties, an entry end () and an exit end (). The changing device () can be arranged and moved into a position with respect to the light-emitting diode () and the fiber entry end () such that the entry end () of the light-guide element (-) lies opposite the light-emitting diode () and the exit end () of the light-guide element (-) lies opposite the fiber entry end ().

Coupling-in apparatus for coupling light from a light-emitting diode into a fiber entry end and light-source arrangement fitted therewith

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Ellwangen, Germany

Peter Reimer