Carl Zeiss Vision International Gmbh

Carl Zeiss Ag

Carl Zeiss Meditec Ag

Erbe Elektromedizin Gmbh

Carl Zeiss Shanghai Co. Ltd.

Tobias Breuninger

Oliver Schwarz

Jesús-Miguel Cabeza-Guillén

Karsten Lindig

Markus Seesselberg

Siegfried Wahl

Arne Ohlendorf

Jeremias Gromotka

Michael Gamperling

Frank Widulle

Holger Wegendt

Frank Schäffel

Daniel Bublitz

Marco Wilzbach

Christoph Nieten

Enrico Geissler

Xiao Han

Norbert Kerwien

Cristina Alvarez Diez

Matthias Kubitza

Felix Bob

Stefan Kaupp

Linda Bauer

Bjoern Lehmann

An instrument () that comprises a cartridge seat () for a knife cartridge (). The knife cartridge () holds a knife (), preferably in protected safe position in which the blade () of the knife () is reliably retained inside the housing () of the knife cartridge () during non-use, particularly if the knife cartridge () is not inserted in the sealing instrument (). This concept leads to increased handling safety for the medical staff.

Knife cartridge and sealing instrument

A depth information detection device detects an item of depth information relating to a user's head, including a distance from the user's head to the device. On the basis of this depth information and, if applicable, additional information such as images, an evaluation device determines the desired parameters for fitting the spectacles, such as centering parameters.

Method and device for determining parameters for spectacle fitting

Methods and devices for correcting centering parameters and/or an axial position of a spherocylindrical refraction on the basis of a habitual head position are disclosed. A representation of the head of a user in a head posture or a representation of the head with a spectacle frame in a spectacle frame alignment are displayed. To correct the spectacle parameter based on a corrected head posture and/or a corrected spectacle frame alignment, the corrected head posture and/or the corrected spectacle frame alignment is determined by at least partially manually correcting a head posture in the displayed representation of the head and/or of the spectacle frame alignment in the displayed representation of the head with the spectacle frame. A representation of the head of a user is shown on a display, thereby allowing intuitive adjustment of a habitual head position.

Method for correcting centering parameters and/or an axial position and corresponding computer program and methods

A method for adjusting spectacles in which a virtual fitting process of a parametric frame model of a spectacle frame on a 3D model of the head of a person, to whom the spectacles are to be fitted, is divided into two fitting procedures. In a first fitting procedure, the parametric frame model is adjusted to the 3D model of the head to meet specific fitting guidelines for the parametric frame model. Fitting guidelines of this nature may be specified by a frame manufacturer to comply with aesthetic criteria in the fitting. Anatomic fitting is then performed in the second fitting procedure.

Method, device, and computer program for the virtual fitting of a spectacle frame

Add-on for a smartphone for smartphone-based photorefraction

A device for determining centering parameters for the adjustment of spectacles includes a camera support partially surrounding an inner area that is open at the top, bottom and to the rear; and at least three cameras arranged between two free ends of the camera support and pointing towards the inner area, the camera support having an illumination system in order to illuminate the inner area. The illumination system is designed to light the inner area such that the light intensity, at least at each point in a region extending over a height of 20 cm and a central angle of 180 degrees of an outer cylinder surface having a diameter of 20 cm and formed in the inner area, deviates by a maximum +50% and &#x2212;30% from a predefined desired value.

Device for determining centring parameters for the adjustment of spectacles

An apparatus for carrying out an eye-related measurement on a person includes a device for generating a fixation target with a holographic element. To generate the fixation target, the holographic element is illuminated by a light source. As a result of the illumination, the fixation target arises as a virtual holographic object. The eye-related measurement is conducted on an eye or the eyes of the person fixating the fixation target. Information is conveyed to the person by switching between different fixation targets.

Apparatuses and methods for carrying out eye-related measurements

A component for a mobile computer device, such as a smartphone, can be secured to the housing of the mobile computer device. The component can deflect the light of a built-in light source of the mobile computer device with an optical element and optionally filter the same, or can provide its own light source to improve the option of measuring eccentric photorefraction using the mobile computer device.

Component, computer program, system, and kit for corrective lens determination

System and a method for corrective lens determination

A multifocal representation device with a digital image generation module and a control unit, which conveys to the digital image generation module two-dimensional image data of a three-dimensional object to be represented, is provided, wherein the digital image generation module, based on the two-dimensional image data conveyed, generates two-dimensional images of the object from at least two different object planes in corresponding different focal planes in such a way that an observer can focus with his eye on the different focal planes in order to perceive the represented object three-dimensionally, and wherein the control unit determines for each two-dimensional image to be represented a sharpness value in sections and sets the image data to dark for the image sections the sharpness value of which lies outside a sharpness value range predetermined for the image.

Multifocal representation device and multifocal representation method for the three-dimensional representation of an object

An apparatus for determining an ametropia of an eyecomprises a measurement light sourceand beam formation opticsand an analysis modulecomprising a detectorand analysis optics. The analysis optics are configured to focus a parallel light beam, entering through the optical interface, along a predetermined line extending transverse to a direction of the analysis beam path. The detector is a spatially resolving detector, wherein an acute angle between a surface normal of the detection area and the predetermined line is less than 80&#xb0;. A controlleris configured to obtain light intensity data detected by the detector and to determine ametropia-data representing the ametropia of the eye based on the light intensity data.

Apparatus for determining an ametropia of an eye

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Riederich, Germany

Tobias Breuninger