Naviswiss Ag

Phonak Ag

Lasag Ag

Zwick Gmbh & Co

Tezet Technik Ag

Bruno Knobel

Charles Findeisen

Stefan Launer

Hans Hessel

Christof Ballweg

Walter Zürcher

Hans Peter Schwob

Joachim Hertzberg

Erwin Keeve

Gregory Bleiker

Friedrich Durand

Karl-Heinz Widmer

Christoph Hämmerle

Klaus Leistritz

Frank Bartl

Martin Roth

Christoph Haemmerle

An endoscope having two entry lenses, which are arranged spaced from each other and the fields of view of which overlap, and having guiding devices. The entry lenses are spaced so far apart from each other that the outer edges thereof protrude beyond the cross-sectional area of the guiding devices, and a lens displacing the axis beam is inserted between one entry lens and the guiding devices. A method for the use of the endoscope.

Stereoscopic endoscope for measuring a three dimensional surface

The method for reconstructing the three-dimensional shape of the surface () of at least a portion of an ear canal () and/or of a concha comprises&#x2014;for each of a multitude of points () on said surface ()&#x2014;the step of using a chromatic coded distance measurement technique for determining a distance value () representative of a distance to said point (); and further comprises the step of reconstructing said three-dimensional shape based on said multitude of distance values (). The system for reconstructing the three-dimensional shape of the surface () of at least a portion of an ear canal () and/or of a concha, comprises a distance measurement unit for determining&#x2014;by means of a chromatic coded distance measurement technique and for each of a multitude of points () on said surface ()&#x2014;a distance value () representative of a distance to said point; and a reconstructing unit () operationally connected to said distance measurement unit for reconstructing said three-dimensional shape based on said multitude of distance values ().

Method and system for reconstructing the three-dimensional shape of the surface of at least a portion of an ear canal and/or of a concha

In order to develop known tracking systems, in particular in the medical field, the invention proposes a device for the contactless determination and measurement of a spatial position and/or spatial orientation of bodies using a tracking system, by means of which the bodies are located and brought into relation with one another, the tracking system, or at least components or modules thereof, being mobile.

System and method for the contactless determination and measurement of a spatial position and/or a spatial orientation of bodies, method for the calibration and testing, in particular, medical tools as well as patterns or structures on, in particular, medical tools

Disclosed is a measuring instrument for determining geometric properties of a profiled element. Said measuring instrument comprises:&#x2014;a device that generates at least one first light beam () and a second light beam (), the direction of radiation of the first light beam being different from the direction of radiation of the second light beam;&#x2014;a retro-reflecting surface () which is arranged in such a way relative to the light source that at least some of both light beams is incident on the retro-reflecting surface; and&#x2014;a recording device () which can determine, across the transversal extension thereof, the light intensity distribution of at least some of the reflected light beam of the first light beam and at least some of the reflected light beam of the second light beam, the first light beam being reflected by the retro-reflecting surface and the second light beam being reflected by the/a retro-reflecting surface.

Measuring instrument and method for determining geometric properties of profile sections

An apparatus () for generating a rotating laser beam () which may used for various applications including welding, cutting, drilling or ablation of materials. More particularly, the apparatus is able to produce a fast rotating and accurate laser beam, because the main optical device () that is rotated consists of a reflecting surface () rotating about an axis (X) that it intersects.

Apparatus for generating a rotating laser beam

The invention relates to a method for measuring the deformation of a specimen without contact with the specimen. The surface of the measured specimen is partly illuminated by a laser light having uniform intensity. A speckle image is produced due to the local quality of the surface and is reproduced via an optical image sent onto a light-sensitive sensor. At least one reference speckle is selected by an evaluator unit from the totality of the speckles of the speckle image. The displacement of the reference speckle on the sensor is evaluated as the measure of the change that occurred in the specimen. In addition, the invention provides a device for performing this method.

Method and device for the contactless measurement of the deformation of a specimen to be measured

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Laufen, Switzerland

Bruno Knobel