Patents by Inventor Christian Fuhse

Christian Fuhse has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9274258
    Abstract: The present invention relates to a thin-film element (30) having an interference layer structure for security papers, value documents and the like, having at least two semitransparent absorber layers (34, 38) and at least one dielectric spacing layer (36) arranged between the at least two absorber layers. According to the present invention, it is provided that the two absorber layers (34, 38) 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.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: March 1, 2016
    Assignee: Giesecke & Devrient GMBH
    Inventors: Christian Fuhse, Michael Rahm, Manfred Heim, Ralf Liebler
  • Publication number: 20160023495
    Abstract: 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.
    Type: Application
    Filed: January 30, 2014
    Publication date: January 28, 2016
    Applicant: Giesecke & Devrient GmbH
    Inventors: Christian FUHSE, Andreas RAUCH, Winfried HOFFMULLER
  • Publication number: 20150352884
    Abstract: A security element for manufacturing value documents, such as banknotes, checks or the like, comprises a top on which a microrelief structure is developed that has at least two sub-regions that each comprise a plurality of groove- and/or rib-shaped structural elements that lie adjacent to one another and extend along a longitudinal direction, and are reflecting or backscattering. The longitudinal directions of the sub-regions are different, and the structural elements are each not resolvable with the naked eye with respect to the width transverse to the longitudinal direction, and fan out incident parallel light achromatically in a fan that lies transverse to the longitudinal direction and has an opening angle of at least 30°.
    Type: Application
    Filed: January 29, 2014
    Publication date: December 10, 2015
    Applicant: Giesecke & Devrient GmbH
    Inventors: Christian FUHSE, Hans LOCHBIHLER
  • Patent number: 9176266
    Abstract: A security element for a security paper, value document or the like, having a carrier which has a reflective areal region which is divided into a multiplicity of reflective pixels. The area of each pixel is smaller than the area of the reflective areal region by at least one order of magnitude. Each pixel has at least one reflective facet which is formed in a surface of the carrier, and the at least one reflective facet reflects light incident along a predetermined direction on the areal region directionally in a reflection direction predefined by the orientation of the facet. The orientations of the facets of different pixels have a substantially random variation over the reflective areal region.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: November 3, 2015
    Assignee: GIESECKE & DEVRIENT GMBH
    Inventors: Christian Fuhse, Manfred Heim, Michael Rahm, Andreas Rauch, Stefan Bichlmeier
  • Publication number: 20150258838
    Abstract: The present invention relates to an optically variable surface pattern having a substrate that comprises a first and a second surface region, the two surface regions being developed in such a way that the first surface region presents, in a first solid angle range (?1) a bulged-appearing first view, and the second surface region presents, in a second solid angle range (?2) that is different from the first solid angle range (?1), a bulged-appearing second view.
    Type: Application
    Filed: October 14, 2013
    Publication date: September 17, 2015
    Applicant: Giesecke & Devrient GmbH
    Inventor: Christian Fuhse
  • Publication number: 20150213666
    Abstract: An apparatus and method for verifying value documents involves a substrate having at least one light-transmissive region with a first information item. A separate display comprises a gridded arrangement of pixels and a second information item is displayed through the separate display at least regionally to correlate with the first information item. A further information item not recognizable and/or readable to a viewer without auxiliary means is hidden in the first and/or second information item. The substrate is placed with its first information item over the second information item which is displayed on the separate display, and the hidden information item becomes recognizable and/or readable. The first information item is formed by light-transmissive diffractive structures whose surface is furnished with an at least partly reflective coating formed from elements arranged in a gridded manner.
    Type: Application
    Filed: May 27, 2013
    Publication date: July 30, 2015
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Peter Schiffmann, Christian Fuhse
  • Patent number: 9016726
    Abstract: The invention relates to a security element for security papers, value documents and the like with at least one microstructure which has a visual appearance that is viewing angle-dependent in transmission, whereby the at least one microstructure is formed from an arrangement of a multiplicity of structure elements with a characteristic structure spacing of 1 ?m or more. According to the invention it is provided that the security element contains at least one motif image which, through the viewing angle-dependent visual appearance of the microstructure, is visible in transmission from certain viewing angles, and invisible in transmission from other viewing angles, and that the microstructure and the motif image together have a thickness of 50 ?m or less.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: April 28, 2015
    Assignee: Giesecke & Devrient GmbH
    Inventors: Andreas Rauch, Michael Rahm, Manfred Heim, Christian Fuhse
  • Patent number: 8964296
    Abstract: A method for producing a microstructure on a carrier by: (a) manufacturing a donor foil by forming an embossed structure with elevations and depressions in a first foil material and applying a transfer layer to the embossed structure, (b) manufacturing an acceptor foil by applying an adhesive layer to a second foil material, (c) laminating the donor foil and the acceptor foil by means of the adhesive layer, the transfer layer on the elevations of the embossed structure bonding to the adhesive layer, and (d) transferring the bonded regions of the transfer layer to the acceptor foil by separating the donor foil and the acceptor foil from each other, thereby forming in the acceptor foil a first microstructure from the transferred regions of the transfer layer, and/or forming in the donor foil a second microstructure complementary to the first microstructure.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: February 24, 2015
    Assignee: Giesecke & Devrient GmbH
    Inventors: Winfried Hoffmuller, Theodor Burchard, Michael Rahm, Josef Schinabeck, Manfred Heim, Andreas Rauch, Christian Fuhse
  • Publication number: 20140160568
    Abstract: An optically variable element, in particular a security element, has a transparent carrier layer, an at least partly transparent reflective layer formed on the carrier layer, and a transparent embedding layer formed on the reflective layer. The reflective layer is structured in a motif region such that the layer forms a multiplicity of partly transparent micromirrors which present a perceptible motif upon plan viewing of the motif region due to specular reflection of incident light. The refractive indices of the carrier and embedding layers differ in the visible spectrum by no more than 0.2 in order that the motif perceptible in plan view is not recognizable upon transmission viewing of the motif region.
    Type: Application
    Filed: July 19, 2012
    Publication date: June 12, 2014
    Applicant: Giesecke & Deverient GmbH
    Inventor: Christian Fuhse
  • Publication number: 20130270813
    Abstract: 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 moiré 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.
    Type: Application
    Filed: December 20, 2011
    Publication date: October 17, 2013
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Winfried Hoffmuller, Michael Rahm, Theodor Burchard, Andreas Rauch, Rudolf Seidler, Anne Bucker, Armin Weingartner, Bernhard Wiedner, Christian Fuhse
  • Publication number: 20130193679
    Abstract: (EN) The invention relates to an optically variable security element (20) for securing data carriers, having a flip image comprising first and second identifiers (24, 26) which can be detected from different first and second viewing directions (40, 42). According to the invention, the first and second identifiers (24, 26) of the flip image are present in an optically variable recording layer (30), which has a reflective layer (52) produced by a vacuum deposition process, and the security element (20) contains a viewing element screen (32) which is spaced apart from the recording layer (30) and which, when viewed from the first or second viewing direction (40, 42), reveals the first or second identifiers (24, 26), respectively.
    Type: Application
    Filed: July 18, 2011
    Publication date: August 1, 2013
    Inventors: Christian Fuhse, Manfred Heim, Michael Rahm, Günter Endres
  • Publication number: 20130099474
    Abstract: 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.
    Type: Application
    Filed: June 29, 2011
    Publication date: April 25, 2013
    Inventors: Christian Fuhse, Michael Rahm, Andreas Rauch
  • Publication number: 20130093172
    Abstract: A security element (1) for a security paper, value document or the like, having a carrier (8) which has an areal region (3) which is divided into a multiplicity of pixels (4) which respectively includes at least one optically active facet (5), whereby the majority of the pixels (4) respectively have several of the optically active facets (5) of identical orientation per pixel (4), and the facets (5) are so oriented that the areal region (3) is perceptible to a viewer as an area that protrudes and/or recedes relative to its actual spatial form.
    Type: Application
    Filed: December 3, 2010
    Publication date: April 18, 2013
    Applicant: Giesecke & Devrient GmbH
    Inventors: Christian Fuhse, Michael Rahm, Andreas Rauch, Witttich Kaule
  • Publication number: 20130063826
    Abstract: A method for producing a microstructure on a carrier by: (a) manufacturing a donor foil by forming an embossed structure with elevations and depressions in a first foil material and applying a transfer layer to the embossed structure, (b) manufacturing an acceptor foil by applying an adhesive layer to a second foil material, (c) laminating the donor foil and the acceptor foil by means of the adhesive layer, the transfer layer on the elevations of the embossed structure bonding to the adhesive layer, and (d) transferring the bonded regions of the transfer layer to the acceptor foil by separating the donor foil and the acceptor foil from each other, thereby forming in the acceptor foil a first microstructure from the transferred regions of the transfer layer, and/or forming in the donor foil a second microstructure complementary to the first microstructure.
    Type: Application
    Filed: May 5, 2011
    Publication date: March 14, 2013
    Applicant: Giesecke & Devrient GmbH
    Inventors: Winfried Hoffmuller, Theodor Burchard, Michael Rahm, Josef Schinabeck, Manfred Heim, Andreas Rauch, Christian Fuhse
  • Publication number: 20120319395
    Abstract: A security element for a security paper, value document or the like, having a carrier which has a reflective areal region which is divided into a multiplicity of reflective pixels. The area of each pixel is smaller than the area of the reflective areal region by at least one order of magnitude. Each pixel has at least one reflective facet which is formed in a surface of the carrier, and the at least one reflective facet reflects light incident along a predetermined direction on the areal region directionally in a reflection direction predefined by the orientation of the facet. The orientations of the facets of different pixels have a substantially random variation over the reflective areal region.
    Type: Application
    Filed: December 3, 2010
    Publication date: December 20, 2012
    Inventors: Christian Fuhse, Manfred Heim, Michael Rahm, Andreas Rauch, Stefan Bichlmeier
  • Publication number: 20120228860
    Abstract: The invention relates to a security element for security papers, value documents and the like with at least one microstructure which has a visual appearance that is viewing angle-dependent in transmission, whereby the at least one microstructure is formed from an arrangement of a multiplicity of structure elements with a characteristic structure spacing of 1 ?m or more. According to the invention it is provided that the security element contains at least one motif image which, through the viewing angle-dependent visual appearance of the microstructure, is visible in transmission from certain viewing angles, and invisible in transmission from other viewing angles, and that the microstructure and the motif image together have a thickness of 50 ?m or less.
    Type: Application
    Filed: November 15, 2010
    Publication date: September 13, 2012
    Applicant: Giesecke & Devrient GmbH
    Inventors: Andreas Rauch, Michael Rahm, Manfred Heim, Christian Fuhse
  • Publication number: 20120170124
    Abstract: The present invention relates to a thin-film element (30) having an interference layer structure for security papers, value documents and the like, having at least two semitransparent absorber layers (34, 38) and at least one dielectric spacing layer (36) arranged between the at least two absorber layers. According to the present invention, it is provided that the two absorber layers (34, 38) 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.
    Type: Application
    Filed: September 10, 2010
    Publication date: July 5, 2012
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Christian Fuhse, Michael Rahm, Manfred Heim, Ralf Liebler