Vistec Electron Beam Gmbh

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Jenavalve Technology Gmbh

Leica Microsystems Lithography Gmbh

Gerd Harnisch

Stefan Risse

Gerhard Schubert

Ulf-Carsten Kirschstein

Thomas Peschel

Christoph Schenk

Christian Jackel

Michael Boehm

René Bauer

Volker Guyenot

Christoph Damm

Hans-Reiner Figulla

Markus Ferrari

Gerhard Kalkowski

Carsten Weber

Thomas Schreiber

Steffen Bohme

Peggy Dörrer

Matthias Mohaupt

Klaus Lang

Steffen Böhme

Michael Böhm

Christoph Dr Schenk

Stefan Dr Risse

Thomas Dr Peschel

The invention relates to a method for producing an optical waveguide (), the surface of which is at least partly coated with a coating material. The coating material contained in a target () is removed using laser radiation () of a processing laser or converted into another aggregate state. The coating material is then deposited on the surface of the waveguide () and forms a coating thereon, said coating modifying the light guidance. It is the object of the present invention to provide an improved method for producing optical waveguides, in which guidance of undesired electromagnetic radiation and/or guidance of radiation in undesired areas of the waveguide is avoided. To this effect, the present invention proposes that the laser radiation () reflected from the target () or transmitted through the target heats-up the waveguide (), said laser radiation () being polarized and impinging the target () at a specified angle (&#x3b1;) between 10&#xb0; and 80&#xb0; relative to the surface normal.

Coating of optical waveguides

A proposed aerostatic bearing arrangement for moving a device on a base structure, particularly in a vacuum environment, has at least one aerostatic bearing element comprising a bearing body having a load-carrying zone and a suction area. An electrostatic preloading unit having at least one electrode is associated with the at least one aerostatic bearing element, and a voltage can be applied to the electrode in such a way that a force component is generated in direction of the surface normal of the bearing body of the aerostatic bearing element.

Aerostatic bearing arrangement and associated electrostatic preloading unit, particularly for vacuum application

A table system for vacuum application has a base plate and a moving table guided by aerostatic bearing units. The bearing units () are connected to supply lines and suction lines for supplying and extracting the gas required for the operation of the bearing units and are provided in each instance with a sealing system having at least one stage and comprising suction channel and sealing gap for sealing relative to the vacuum. The table system is characterized in that the aerostatic bearing units () are constructed at least partially as swivel joints, and a push rod () which is actuated by a drive () for guiding the moving table laterally is connected to the rotating part () of each swivel joint, and in that the push rods () are hollow and constitute a component part of the suction lines for extracting the operating gas.

Aerostatically guided table system for vacuum application

A table for vacuum application which is guided by aerostatic bearing elements, having a fixedly mounted supporting structure and a tabletop which is displaceable in x-direction and y-direction with respect to the fixedly mounted supporting structure by means of slides. The slides are provided with the aerostatic bearing elements for guiding, these aerostatic bearing elements being connected to feed lines for supplying the gas required for the operation of the gas bearings and suction lines for removing this gas. The suction lines comprise at least one variable-length line arrangement having a first pipe member and a second pipe member which penetrate one inside the other without contacting, at least one sealing gap being provided between the pipe members.

Table guided by aerostatic bearing elements for vacuum application

The invention relates to an anchoring system for heart valve prostheses which can be implanted by introduction via the aorta without any major surgical operation. With the heart valve prosthesis according to the invention it shall be achieved that this can be safely and quickly guided through the aorta toward the heart, and can be fixed there. With this, hook-shaped elements are secured to the commissures of the heart valve prosthesis the hooks of which are guided in an outward direction through the heart valve prosthesis material.

Anchoring system for implantable heart valve prostheses

The present invention provides for a device for holding a substrate in an exposure system. In the exposure system, the substrate is positioned on a table movable in the X and Y coordinates of an X, Y plane, and the exposure system provides a metering assembly between a table surface and the substrate to adjust the distance and to align the substrate in relation to an exposure optics, from where a corpuscular radiation is directed right-angled onto a substrate surface, corresponding to the Z coordinate. The device for holding the substrate includes two mounting plates aligned parallel to the X, Y plane, adjusted upon the table in a direction to the exposure optics and with different distances to the table surface, the first mounting plate of which being directly connected to the table. The second mounting plate is connected with the first mounting plate through at least one holding device, and has a bearing plane for the substrate being designed on that side of the second mounting plate turned to the exposure optics.

Holding device for a substrate

Growing community of inventors

Jena, Germany

Gerd Harnisch