Giesecke+devrient Currency Technology Gmbh

Giesecke & Devrient Gmbh

Giesecke+devrient Mobile Security Gmbh

Michael Rahm

Christian Fuhse

Manfred Heim

Andreas Rauch

Wittich Kaule

Winfried Hoffmuller

Marius Dichtl

Raphael Dehmel

Maik Rudolf Johann Scherer

Wolfgang Rauscher

Theodor Burchard

Tobias Sattler

Patrick Renner

Ralf Liebler

Lars Hoffmann

Mario Keller

Christoph Mengel

Giselher Dorff

Kai Hermann Scherer

Karlheinz Mayer

Peter Franz

Kai Herrmann Scherer

Peter Schiffmann

Josef Schinabeck

Günter Endres

Jurgen Schutzmann

André Gregarek

Jürgen Schützmann

Hans Lochbihler

Stefan Bichlmeier

Georg Depta

Thomas Mang

Matthias Pfeiffer

Bernhard Wiedner

Ernst-Bernhard Kley

Winfried Hoffmüller

Christoph Hunger

Thomas Pertsch

Moritz Hofer

Thanh-Hao Huynh

Harald Reiner

Thomas Gerhardt

Rudolf Seidler

Daniel Lenssen

Björn Teufel

Manfred Dotzler

Jorg Petschulat

Andreas Pretsch

Yana Kisselova-Weckerle

Jorg Anders

Christian Stockl

Matthias Blazek

Anne Bucker

Armin Weingartner

Thomas Kampfe

Thomas Kämpe

Herbert Zaschka

Christine Gerstl

Katalin Szendrei-Temesi

Kerstin Gottschling

Jörg Anders

Birgit Seiss

Thomas KÄMPFE

Jörg Petschulat

Kaule Wittich

Michael BÖHM

Anne BÜCKER

Matthias Walther

Tina Clausnitzer

Birgit Seiß

Frank Sievers

Georg Kiefersauer

Annett BÄHR

Walter DÖRFLER

Falk Amthor

Christian STÖCKL

Udo Schaumburger

Simon Freutsmiedl

Guenter Endres

Angelika Hilgenrainer

Thomas Kämpfe

An optically variable security element has a motif region including a plurality of differently oriented first facets and a plurality of differently oriented second facets arranged in the motif region. Each of the first and second facets defines a normal vector having a first orientation component and a second orientation component. The color impression of the at least one motif is determined by the first orientation components. The representation of the at least one motif is defined by the second orientation components. The first orientation components of the first facets and the second facets are different from one another.

Optically variable security element and value document with the optically variable security element

A security element for a security paper, value document or the like, having a carrier which has a motif region that includes a visually perceptible motif with a first and a second motif part, wherein the motif region includes a first micro-optic representation arrangement which presents at least two different images in viewing angle-dependent fashion as a first motif part, and a second micro-optic representation arrangement which presents a reflective surface as a second motif part, which surface appears bulged relative to the actual macroscopic spatial form of the second micro-optic representation arrangement.

Security element as well as value document having such a security element

A platelet-shaped magnetic effect pigment is provided for use in a printing ink, and includes a layer construction with a magnetic layer and at least one optical functional layer, such that the magnetic layer is based on a magnetic material having a column-shaped nanostructure and the magnetic columns respectively have a largely uniform preferential magnetic direction deviating from the platelet plane.

Effect pigment, production method, value document and printing ink

A composite glass comprises two glass and/or plastic plates and an intermediate foil arranged between the glass and/or plastic plates. The composite glass, due to the intermediate foil, is configured differently in a side-dependent manner, by appearing to a viewer more transparent from an inner side than from an outer side. The composite glass, due to the intermediate foil, appears to the viewer different in a viewing angle-dependent manner from the outer side.

Composite glass with an intermediate film that changes colour depending on the viewing angle

A method for producing pigments having a specified contour, comprises the steps of creating a pigment layer on a starting substrate; detaching from the starting substrate; and structuring the pigment layer into a plurality of the pigments; characterized by bringing into contact the pigment layer with an intermediate substrate, wherein the pigment layer adheres at least in sections to the intermediate substrate; and separating intermediate substrate and starting substrate.

Method for producing pigment fragments with a predefined internal and/or external contour, and pigment fragments

An optically variable security element has a multicolored, reflective areal region including a first relief structure disposed at a higher level than a second relief structure. The first relief structure has a first ink coating and the second relief structure has a second, different ink coating. The two relief structures overlap in an overlap region. The first ink coating of the first relief structure is disposed at a higher level in the overlap region and has at least one recess the dimension of which is more than 140 &#x3bc;m. The first ink coating comprises an edge region adjoining the recess, and as a bicolor register feature the first relief structure lets the edge region of the first ink coating appear with a first color impression and the second relief structure through the recess lets the second ink coating appear with a second, different color impression in mutual register.

Optically variable security element having reflective surface region

An optically variable security element wherein the areal expansion whereof defines a z direction standing perpendicularly thereon, and has a multicolored, reflective areal region. The areal region includes two relief structures arranged at different height levels in the z direction. The relief structures are each supplied with an ink coating which produce a different color impression. The ink coating of the relief structure disposed at a higher level is configured in the feature region as a regular or irregular grid with grid elements and grid spaces. The dimensions of the grid elements and/or grid spaces are below 140 &#x3bc;m at least in one direction, so that, in the feature region, for a viewer from at least one viewing angle, the ink coating of the relief structure disposed at a lower level is visible through the grid spaces of the ink coating of the relief structure disposed at a higher level.

A method for manufacturing a value document includes: providing a value document substrate; printing the value document substrate with magnetically orientable effect pigments which are dispersed in a UV-curable lacquer; the step of exposing the lacquer containing the magnetically orientable effect pigments to a dynamic magnetic field; the step of irradiating the lacquer containing the effect pigments with UV radiation; and optionally the step of embossing the cured or at least partially cured UV lacquer.

Method for manufacturing a value document, value document and printing device

A platelet-shaped pigment with a layer construction comprises the following layers in the order, optionally a carrier substrate; a transparent embossing lacquer layer with an embossed relief structure; a reflection-increasing coating which follows the relief structure and forms a reflecting microstructure, wherein the reflecting microstructure is present in the form of a mosaic of a multiplicity of reflecting mosaic elements and the reflecting mosaic elements do not reflect the incident light in the direction of the specular reflex, regarding the plane of the platelet, but in a spatial direction deviating therefrom and respectively have a lateral dimensiongreater than 2 &#x3bc;m.

Disc-shaped pigment, printing ink, security element and method of production

The present invention relates to a security element () for security papers, value documents and the like, having a microoptical moir&#xe9;-type magnification arrangement for depicting a moir&#xe9; image () having one or more moir&#xe9; image elements (), having

Security element

A security element () for a security paper, value document or the like, having a carrier () which has an areal region () which is divided into a multiplicity of pixels () which respectively includes at least one optically active facet (), whereby the majority of the pixels () respectively have several of the optically active facets () of identical orientation per pixel (), and the facets () are so oriented that the areal region () is perceptible to a viewer as an area that protrudes and/or recedes relative to its actual spatial form.

Security element, value document comprising such a security element, and method for producing such a security element

The invention relates to an optically variable security element () for securing valuable articles, having an achromatically reflective micropattern in the form of a mosaic () including a plurality of achromatically reflective mosaic elements (--) that are characterized by the parameters size, contour shape, relief shape, reflectivity and spatial orientation and that form a predefined motif in that different groups of mosaic elements (--) having different characteristic parameters reflect incident light () in different spatial regions (). The mosaic elements (--) exhibit a lateral dimension below the resolution limit of the eye.

Visually variable security element and method for production thereof

The invention relates to a depiction arrangement for security papers, value documents, electronic display devices or other data carriers, having a grid image arrangement for depicting a target image () that is broken down into two or more partial target images (), having

Depiction arrangement

A security element for securing security papers, value documents and other data carriers, has a lenticular image that, from different viewing directions, displays at least two appearances. The lenticular image includes a lens grid composed of a plurality of microlenses and a laser-sensitive motif layer arranged spaced apart from the lens grid. The laser-sensitive motif layer comprises, in two or more motif layer sub-regions, different markings introduced by the action of laser radiation and that, when the motif layer is viewed with the lens grid, produce at least two appearances. The lens grid is divided into two or more lens grid sub-regions in which the microlenses each comprise differently refractive lens surface forms. The different lens grid sub-regions are congruent with the different motif layer sub-regions, and the markings of the motif layer sub-regions being produced by laser impingement of the lens grid sub-regions.

Security element having a lenticular image

Growing community of inventors

Hemau, Germany

Michael Rahm