Giesecke & Devrient Gmbh

Giesecke+devrient Currency Technology Gmbh

Bernhard Wiedner

Manfred Heim

Theodor Burchard

Andreas Aigner

Andreas Hanelt

Gunther Wild

Christian Fuhse

Michael Rahm

Winfried Hoffmuller

Andreas Rauch

Marius Dichtl

Reinhard Plaschka

Mario Keller

André Gregarek

Friedrich Kretschmar

Christoph Mengel

Matthias Pfeiffer

Patrick Renner

Josef Schinabeck

Ralf Liebler

Winfried Hoffmüller

Rudolf Seidler

Markus Krombholz

Andreas Pretsch

Johannes Kemper

Johannes Beier

Anne Bucker

Thomas Bodendieck

Bernd Oweger

Armin Weingartner

Bernd Stumbeck

Michael Dornfeld

Markus Paetzold

Michael DÖRNFELD

Clemens Berger

Günther Wild

Anne BÜCKER

Alexander Rackowitz

Marc Theissen

Markus Marwitz

Jürgen Ruck

Karin Winkler

Georg Kiefersauer

Annett BÄHR

Andreas HÄNELT

Winfried Hoffmueller

Juergen Ruck

Alexander Tantscher

A micro-optical inspection arrangement comprises micro-focusing elements which are composite bodies consisting of a main part and an additional part and which have a reference focal length. The main parts are provided as micro-focusing element preforms, and the additional parts are formed from one or more functional coatings. The invention also relates to a method for producing such a micro-optical inspection arrangement and to a micro-optical displaying arrangement comprising the micro-optical inspection arrangement according to the invention and a microstructure arrangement, in particular a moir&#xe9; magnification arrangement and a modulo magnification arrangement. The invention also relates to security elements and data carriers that have the micro-optical inspection arrangement according to the invention.

Micro-optic viewing arrangement

A method includes manufacturing a sheet-type substrate having a security thread in which a security thread having features spaced apart from one another in the longitudinal direction of the security thread is inserted into the substrate in such a way that it is at least partially embedded in the substrate. At least one of the features is displayed as an image after the embedding of the security thread. The stretch of the embedded security thread in the longitudinal direction is calculated based on the image of the at least one feature, and the region of the substrate in which the calculated stretch of the security thread exceeds a specified maximum stretch is obliterated depending on the calculated stretch.

Method and device for manufacturing a sheet-like substrate

The present invention relates to a dewatering screen for manufacturing paper having multi-level watermarks, having a carrier mold () that exhibits, in a fractional region, a multi-level relief () in the form of the watermark to be produced. According to the present invention, it is provided that the multi-level relief is formed by an injection-molded, perforated () watermark insert ().

Dewatering screen and method for manufacturing the same

A method for manufacturing a security feature for a security element, a security paper or a data carrier that exhibits a substrate into which at least one through opening and at least one marking in registration with the through opening are to be introduced. The method includes the steps of providing a substrate with a laser-modifiable marking substance at least in the region of the marking to be produced and, in the same operation, introducing at least one through opening into the substrate by the action of laser radiation at higher laser power and modifying the laser-modifiable marking substance in the marking region by the action of laser radiation at a lower laser power to produce at least one marking in registration with the through opening.

Security feature and method for manufacturing the same

Dewatering screen and method for the production thereof

The present invention relates to a security element () for security papers, value documents and the like, having a substrate () and an opaque metallization) arranged on the substrate. According to the invention in the security element is provided, that the metallization () comprises a first opaque metal layer () and a second opaque metal layer () arranged above the first metal layer (), and that the two metal layers () have substantially the same tone of color in the visible spectral region.

Security element with metallization

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Miesbach, Germany

Bernhard Wiedner