Bundesdruckerei Gmbh

Ovd Kinegram Ag

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Covestro Deutschland Ag

Covestro Intellectual Property Gmbh & Co. Kg

Olga Kulikovska

Manfred Paeschke

Jörg Fischer

Wayne Robert Tompkin

Thomas Rölle

Dennis Hönel

Harald Walter

Dieter Schmalstieg

Andre Leopold

Detlef Starick

Frank Morgner

Joachim Stumpe

Wieland Hovestadt

Joerg Fischer

Andreas Wolf

Oliver Muth

Arthur Mathea

Thomas Roelle

Sebastian Mader

Markus Tietke

Michael Knebel

Ilya Komarov

Olaf Dressel

Andreas Wilke

Franziska Peinze

Edward Springmann

André Leopold

Stefan Trölenberg

Detlef Märtens

Walter Fumy

Enrico Orselli

Michael Stasiak

Olaf Horvath

Robert Fiedler

Leonid Goldenberg

Christoph Jung

Dennis Hoenel

Lazar Kulikovsky

Kathrin Klünder

Lazar Kulikovski

Frank Schippan

Jeffry Gahlbeck

Andre Joseph

Marian Kind

Torben Wedekind

Andreas Hartl

Matthias Kromphardt

Alexa Bartocha

Björn Donath

Josephine Heidrich

Matthias Voro

Mario Gattner

Peer KRÜGER

Jorg Fischer

A method for integrating a hologram into the body of a security document that has a laminated body. The method includes: providing a holographic film having a backing substrate layer and a photo layer; providing additional substrate layers; carrying out a laminating process in order to form the laminated body, the holographic film together with the additional substrate layers being collated to form a substrate layer stack and being combined, together with the additional substrate layers, in a high-pressure, high-temperature laminating method to form the laminated body. There is also described a corresponding security document body.

Method for integrating a hologram into a security document body and security document body

A method and a device check a security element of a security document. The security element contains at least one particulate substance with electroluminescent properties and at least one field suppression element. The method includes applying an electric excitation field to the security element, generating an optical image of at least one region of the security element after or during the production of the electric excitation field, and detecting local intensity maxima in the optical image. The security element is verified if a number of local intensity maxima present at different image positions is greater than or equal to a specified number, the number being at least two.

Method and device for checking a security element

Method and device for testing a security element () of a security document, the security element () being able to contain at least one substance () which has optically variable properties, including the following method steps: illuminating the security element () with at least one predetermined illumination parameter, filtering the light reflected by the security element into a first component (RLp) having a first polarisation, determining an intensity (I) of the first component (RLp) of reflected light reflected at a reflection angle (&#x3d5;), for at least one reflection angle (&#x3d5;), and verifying the presence of a substance () which has optically variable properties as a function of the intensity (I) of the first component (RLp).

Method and device for testing a security element of a security document

An identity card, comprising a card body and a physical unclonable function arranged within the card body, wherein the physical unclonable function comprises a first light influencing layer and a second light influencing layer.

Identity card with physical unclonable function

The invention relates to a security element (). The security element () has a viewing side and a back side that is opposite the latter. The security element comprises at least one luminous layer () that can emit light (), and at least one mask layer () that, when the security element () is viewed from the viewing side, is arranged in front of the at least one luminous layer (). The at least one mask layer () has at least one opaque region () and at least two transparent openings (). The at least two transparent openings () has a substantially higher transmittance than the at least one opaque region () in respect of light () emitted by the at least one luminous layer (), preferably a transmittance that is at least 20% higher, particularly preferably a transmittance that is at least 50% higher.

Security element

The invention relates to a security element (). The security element () has a viewing side and a back side that is opposite the latter. The security element comprises at least one luminous layer () that can provide light (), and at least one mask layer () that, when the security element () is viewed from the viewing side, is arranged in front of the at least one luminous layer (). The at least one mask layer () has at least one opaque region () and at least two transparent openings (). The at least two transparent openings () has a substantially higher transmittance than the at least one opaque region () in respect of light () provided by the at least one luminous layer (), preferably a transmittance that is at least 20% higher, particularly preferably a transmittance that is at least 50% higher.

The invention relates to a security element (), in particular in the form of a multi-layer flexible film body, with a top side facing an observer and a back side facing away from the observer, as well as a method for the production thereof. The security element () has one or more light-emitting elements arranged in a first area () of the security element which radiate light when activated and in particular are formed in each case of a self-luminous, electrically operated, display element. The security element () has, in the first area (), one or more transmissive diffraction structures. The one or more transmissive diffraction structures are arranged such that at least a part of the light radiated by the activated one or more light-emitting elements transmits through at least one partial area of the transmissive diffraction structures.

Security element and security document

An identity card, comprising a card body and a physical unclonable function are arranged within the card body, wherein the physical unclonable function comprises a first light influencing layer and a second light influencing layer.

A method for individualizing a security document includes providing a document blank with a lamination body; printing on at least one outer surface of the lamination body with a digital printing device to introduce individualization information into the lamination body. The document blank with the lamination body has an outer layer in an individualization region with an outer material layer adjacent to the at least one outer surface formed with perforation openings penetrating the outer material layer to an information layer. The individualization information is printed onto the outer surface with at least some of the individualization information printed onto the information layer through the perforation openings. A system for individualizing documents is configured to print individualization information onto the information layer through the perforation openings.

System and method for individualizing security documents

The present invention is directed to a film forming, photoactive, homogeneously mixed material comprising a complex prepared from (a) at least one ionic photosensitive compound which may undergo a photoreaction, selected from photoisomerizations, photocycloadditions and photoinduced rearrangements, and/or (a') at least one photosensitive polyelectrolyte ('second polyelectrolyte') carrying residues which may undergo said photoreaction, and (b) at least one ('first') polyelectrolyte carrying charges which are opposite to those of the active groups of the photosensitive material. This material has unique photochemical properties in that non-scattering, optically clear films may prepared therefrom which allow light-induced generation of optical anisotropy and of topological surface structures, e.g. such as surface relief gratings (SRG).

Film forming material and preparation of surface relief and optically anisotropic structures by irradiating a film of the said material

The present invention relates to a method and a device for three-dimensionally determining the refractive index and, if necessary, the layer thickness of transparent or partially transparent layers in which the layer () is irradiated at different angles of incidence () with polarised light, and variations in the polarisation of the light are measured and evaluated as the light passes through the layer (). The method is characterized in that the measurement is carried out through an immersion medium () between which the layer () is inserted. A highly accurate determination of the refractive index of anisotropic thin layers in all three spatial directions is made possible by this method.

Method and device for three-dimensionally determining the refractive index of transparent or partially transparent layers

Growing community of inventors

Berlin, Germany

Olga Kulikovska