Giesecke+devrient Currency Technology Gmbh

Giesecke & Devrient Gmbh

Glesecke & Devrient Gmbh

Andreas Rauch

Christian Fuhse

Michael Rahm

Winfried Hoffmuller

Manfred Heim

Stefan Bichlmeier

Tobias Sattler

Maik Rudolf Johann Scherer

Kathrin Hovestadt

Doris Walter

Wittich Kaule

Raphael Dehmel

Theodor Burchard

Josef Schinabeck

Michael Sobol

Giselher Dorff

Jurgen Schutzmann

Mario Keller

André Gregarek

Jürgen Schützmann

Hans Lochbihler

Christoph Mengel

Kai Herrmann Scherer

Georg Depta

Matthias Pfeiffer

Bernhard Wiedner

Patrick Renner

Ralf Liebler

Winfried Hoffmüller

Rudolf Seidler

Kai Hermann Scherer

Björn Teufel

Andreas Pretsch

Thomas Mang

Thomas Gegenfurtner

Armin Weingartner

Norbert Vogt

Ivo Quirino

Florian Frohlich

Sebastian Wetter

Anne Bucker

Christoph Gebauer

Anne BÜCKER

Matthias Walther

Birgit Seiss

Ferdinand Kammerer

Kaule Wittich

Patrick Engelmann

Christine Gerstl

Herbert Zaschka

Birgit Seiß

Frank Sievers

Georg Kiefersauer

Karin Lutzenberger

Falk Amthor

Andreas Holzmeister

Christian STÖCKL

Angelika Hilgenrainer

Alexander Tantscher

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

An optically variable security element is provided for safeguarding articles of value. The security element has a feature layer containing, in a common plane, first and second feature regions arranged so as to accurately fit together. The first feature regions contain a first embossing lacquer layer of a first embossing lacquer into which an embossed structure that creates a first optical effect has been embossed. The second feature regions contain a second embossing lacquer layer of a second embossing lacquer into which an embossed structure that creates a second, different optical effect has been embossed. The first and second embossing lacquers have different solidification properties and different optical properties. A production process is provided for such an optically variable security element, and to embossing arrangements comprising a semi-finished security element product and means of impressing an embossed structure.

Optically variable security element, production process and embossing arrangement

A method is provided for producing platelet-shaped pigments, including the steps of: providing a film structure which has a carrier substrate, a water-soluble release layer and a pigment material layer; mechanically disrupting the pigment material layer, which is present in the film structure, at specific locations; soaking the film structure with aqueous solution; subjecting the film structure to a mechanical force so that the pigment material layer is detached from the carrier substrate as a plurality of pigments according to the ruptures present at the specific locations.

Method for producing platelet-shaped pigments

The invention relates to a mask exposure method comprising the following steps: —the providing of a carrier substrate; the print application of a radiation-crosslinkable washable dye layer to the full area of the carrier substrate; —the exposure of the radiation-crosslinkable washable dye layer in defined regions to radiation by means of a radiation mask, such that the washable dye is cured in the defined regions; —the applying of a metallization over the full area; —the removing of the non-radiation-exposed washable dye outside the defined regions together with the metal present thereon with the aid of a solvent, such that the resultant carrier substrate has cured washable dye with metal applied thereto only in defined regions.

Mask exposure method, transparent conductive metallization and pigment

A method for manufacturing an optically variable security element, so that for a viewer of the security element, a first color impression is created through the combination of at least the color effects of a first embossing lacquer layer and the coating, and a second, different color impression is created through the combination of the color effects of at least the first embossing lacquer layer, a second embossing lacquer layer and a coating.

Method for producing an optically variable security element

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 security element for securing security papers, value documents and other data carriers, having a lenticular image that, from different viewing directions, displays at least two different appearances. The lenticular image includes a lens grid composed of a plurality of microlenses and a radiation-sensitive motif layer arranged spaced apart from the lens grid. The radiation-sensitive motif layer includes, produced by the action of radiation, a plurality of transparency regions that are each arranged in perfect register with the microlenses of the lens grid. Outside the transparency regions produced by the action of radiation, the radiation-sensitive motif layer is opaque and patterned in the form of a first motif such that, when the security element is viewed through the lens grid from a first viewing direction, the first motif is visible as the first appearance.

Security element having a lenticular image

A method includes using a lenticular image having a lens grid composed of a plurality of microlenses and a metallic motif layer arranged spaced apart from the lens grid; the refractive effect of the microlenses defines a focal plane and the metallic motif layer being arranged substantially in the focal plane; a line width is chosen for the demetalized sub-regions to be produced in the metallic motif layer; a marking laser source having a laser wavelength &#x3bb; is selected such that the resolving power D(&#x3bb;) of the microlenses of the lenticular image at the selected laser wavelength &#x3bb; substantially corresponds to the line width of the demetalized sub-regions to be produced; and the metallic motif layer is impinged on through the microlenses with laser radiation of the marking laser source to produce demetalized sub-regions in the metallic motif layer.

Method for manufacturing a security element having a lens grid image

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

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

The invention concerns a security element having a magnetic coding consisting of magnetic coding elements. At least one of the magnetic coding elements has a grid-shaped magnetic region which is formed by a plurality of mutually parallel grid strips made of magnetic material which respectively have a magnetic anisotropy. The grid strips lead, through their magnetic anisotropy, to the magnetization direction of the coding element being able to differ from the direction of the applied magnetic field. Since the resultant magnetic signals that the grid-shaped magnetic regions deliver cannot be simulated by conventional magnetic regions, said coding elements increase the anti-forgery security of the security element.

Security element for value documents

An optically variable surface pattern is made available, having at least two partial areas with reflection elements, wherein the reflection elements of the first partial region on the one hand and the reflection elements of the second partial region on the other hand reflect impinging light in different reflection directions. The first partial region is so covered with a first glazing ink layer that a viewer, upon a change of the viewing angle at which the viewer views the optically variable surface pattern, sees the first partial region glow in a first color upon reaching a first viewing angle. The second partial region glows in a second color that is different from the first color upon reaching a second viewing angle.

Optically variable surface pattern

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Ohlstadt, Germany

Andreas Rauch