Giesecke & Devrient Gmbh

Giesecke+devrient Currency Technology Gmbh

Georg Depta

Wittich Kaule

Manfred Heim

Peter Franz

Christof Baldus

Reinhard Plaschka

Christian Fuhse

Michael Rahm

Karlheinz Mayer

Andreas Rauch

André Gregarek

Christoph Mengel

Patrick Renner

Josef Schinabeck

Walter Dörfler

Max Voit

Peter Schiffmann

Andreas Aigner

Harald Reiner

Thanh-Hao Huynh

Walter Doerfler

Jürgen Zerbes

Veronika Rack

Simon Freutsmiedl

Walter DÖRFLER

Andreas HÄNELT

Annett BÄHR

Steffi Jahn

Daniela Otto

Lars Karcher

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

The invention relates to a value document, especially a banknote, having a sequence of layers into which visually and/or mechanically perceptible identifiers in the form of patterns, letters, numbers or images are introduced by the action of laser radiation. According to the present invention, the sequence of layers includes a marking layer () composed of an ink mixture () exhibiting a laser-radiation-absorbing mixture component () and a laser-radiation-transparent mixture component (), the identifiers being visually and/or mechanically perceptible due to an irreversible change in the optical properties of the ink mixture (), effected by the action of the laser radiation.

Layer-type value document comprising an ink mixture in one layer

The invention relates to a data carrier, especially a value document or security paper, having a substrate () and, applied on the substrate, a coating () into which, through the action of laser radiation, markings () are introduced in the form of patterns, letters, numbers or images. According to the present invention, it is provided that the coating () includes a laser-radiation-absorbing layer () and a printing layer () that is disposed over the absorbing layer and that is at least partially transmissive to the laser radiation, and that the printed substrate is pressed () during or after the imprinting of the at least partially transmissive layer ().

Data carrier and method for the production thereof

The invention relates to a document of value, such as e.g. a bank note or the like, which has a security paper. In the security paper at least one tangible marking in the form of a relief structure is produced by a laser.

Security document

The invention relates to a value document, such as bank note, passport or the like, which has a security paper and a marking produced with the help of a laser, the security paper having at least one partial area with a coating, and the marking extending over the border area between coating and security paper. Further, the invention relates to a security paper and methods for producing an inventive value document and security paper.

The invention relates to a value document, especially a banknote, having an individualizing mark that is applied at least once each to the front and the reverse of the value document. Here, at least one of the individualizing identifiers applied to the front and reverse is applied to the value document with a non-contact method.

Value document comprising a serial number

The present invention relates to a data carrier, especially a value document, such as a banknote, an identification card or the like, having a security element () that exhibits a print image () and a laser marking () at least partially overlapping the print image (). According to the present invention, the security element () further exhibits, at least partially overlapping the print image (), a laser modification area () that is in register with the laser marking () and in whose overlap area () with the print image () the visual appearance of the print image () is modified by the action of a laser beam.

Data carrier with security element and method for the production thereof

The invention relates to a method, in which from two images of a security element, which are recorded with right-handed and left-handed circularly polarizing filters, a differential image is produced, on the basis of which the authenticity of the security element is tested, and an apparatus for carrying out the method.

Method and device for checking authenticity of a security element

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Rosenheim, Germany

Georg Depta