Giesecke & Devrient Gmbh

Giesecke+devrient Currency Technology Gmbh

Giesecke+devrient Mobile Security Gmbh

Ralf Liebler

Manfred Heim

Michael Rahm

Wittich Kaule

Thomas Giering

Christian Fuhse

Klaus Finkenzeller

Thomas Tarantino

Lars Hoffmann

Marius Dichtl

Bernd Wunderer

Dieter Stein

Norbert Holl

Winfried Hoffmuller

Josef Riedl

Andreas Rauch

Reinhard Plaschka

Mario Keller

Theodor Burchard

Maik Rudolf Johann Scherer

Gregor Grauvogl

André Gregarek

Jürgen Schützmann

Walter Schneider

Friedrich Kretschmar

Ralf Hobmeier

Christoph Mengel

Alexander Steinkogler

Matthias Pfeiffer

Bernhard Wiedner

Josef Schinabeck

Thomas Hildebrandt

Florian Gawlas

Patrick Renner

Peter Schiffmann

Martin Seysen

Winfried Hoffmüller

Thorsten Pillo

Giselher Dorff

Markus Krombholz

Christian Voellmer

Rudolf Seidler

Manfred Dotzler

Harald Reiner

Björn Teufel

Juergen Schuetzmann

Wolfgang Wensauer

Horst Reigl

Fabiola Bellersheim

Eckart Schroeder-Bergen

Christoph Gebauer

Thomas Bodendieck

Bernd Oweger

Karin Winkler

Patrick Engelmann

Jürgen Ruck

Daniela Otto

Michael BÖHM

Katharina Reichel

Karin Lutzenberger

Michael Fiedler

Winfried Hoffmueller

Juergen Ruck

Alexander Tantscher

The present invention relates to a thin-film element () having an interference layer structure for security papers, value documents and the like, having at least two semitransparent absorber layers () and at least one dielectric spacing layer () arranged between the at least two absorber layers. According to the present invention, it is provided that the two absorber layers () are each formed from a material having a complex refractive index N whose real part n and imaginary part k differ at least in a portion of the visible spectral range by a factor of 5 or more.

Thin-layer element having an interference layer structure

The present invention relates to a method for producing, for the depiction of a specified motif, a micro-optical depiction arrangement that exhibits a colored motif grid, composed of a plurality of micromotif elements, and a focusing element grid, composed of a plurality of microfocusing elements that reconstructs the specified motif when the micromotif elements are viewed.

Method for producing a micro-optical display arrangement

The present invention relates to a method for producing a micropattern on a substrate (), in which

Method for producing a microstructure

The invention relates to a security element for security papers, documents of value and the like having a thin-layer element () with color shift effect, which has a reflection layer (), an absorber layer () and a spacer layer () disposed between reflection layer () and absorber layer (). According to the invention the spacer layer () is formed by a printed layer having dispersion particles () with monomodal or oligomodal size distribution.

Security element with thin-layer element

The invention relates to sheet material having an electrical circuit and to apparatuses and methods for processing said sheet material. The present invention describes sheet material having an electrical circuit as well as apparatuses and methods for processing same, which reduce the effort required for processing the sheet material and/or facilitate processing and/or improve it and/or make it more reliable. For this purpose, the sheet material has at least one electrical circuit, with energy and/or data being transmitted from the apparatus to the electrical circuit and/or from the electrical circuit to the apparatus and at least part of the transmitted data being used for processing.

Devices and method for the production of sheet material

Growing community of inventors

Schliersee, Germany

Ralf Liebler