An anti-forgery security device (5) comprises an optical waveguide (6), an out-coupler (11) having first macroscopically repetitive elements (18) and being arranged to couple out light from the waveguide (6), and a light processing structure (22) comprising second macroscopically repetitive elements (24) and being arranged to process light coupled out by said out-coupler (11). The first and second elements (18, 24) are arranged on opposite sides (7a, 7b) of the waveguide (6). The device (5) generates e.g. Moire and/or parallax effects from light propagating along the waveguide (6). Third, absorbing elements (52) may be added to generate effects without light in the waveguide (6).
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
The contour (8) of a window (2) in the carrier (1) of a security document is varied between documents. The variation is small and invisible to the naked eye, but it can be detected using a suitable detection device. The window (2) can be covered on one of both sides by transparent layers (41, 42) in order to protect the small variations of the edge from wear. The technique e.g. allows to encode a documents serial number, denomination, or bearer in the contour of the window (2).
A security element (1) for a security document comprises a plurality of spots (2) having, at least in a primary direction, extensions (x) of less than 20 μm, in particular of less than 10 μm. The extension (y) along a secondary direction, which is perpendicular to the primary direction, can be larger. The security element (1) is scanned by means of a device having a larger resolution along the primary direction than along the secondary direction.
The security document comprises a window (6) with an invisible, printed refractive, non-diffractive structure (7) printed thereon. In addition, it can carry a visible printed image (8). When the window is viewed against a dark background, the structure becomes visible and thereby allows testing the document's authenticity.
The carrier (2) for representing a monetary value as a means of payment comprises a substrate (4), a control unit (10) mounted to the substrate (4), a value store (22) for storing a carrier value of the carrier, and an interface circuit (28) for electronic communication of an external device with the control unit (10). The carrier further comprises an owner store (24) for storing the current owner of the carrier (2). The current owner can e.g. be displayed on a display device (8) of the carrier, or it can be used for restricting certain privileged operations on the carrier to its current owner. A large number of such carriers (2) is used in a payment infrastructure having a plurality of terminal devices (62, 64) that are able to communicate with the carriers through their interface circuits (28), The infrastructure further comprises a central server device (68), Values can be transferred to and/or from individual carriers (2) by various methods. A number of measures are described to protect the carriers (2) and the rest of the infrastructure from tampering.
The carrier (2) for representing a monetary value as a means of payment comprises a substrate (4), a control unit (10) mounted to the substrate (4), a value store (22) for storing a carrier value of the carrier, a display device (8) for displaying a status of the carrier (2) and an interface circuit (28) for electronic communication of an external device with the control unit (10). Further, an authentication device (34) is provid for verifying the authenticity of the status shown by the display device (8). The authentication device e.g. comprises an optically variable device, a diffractive structure, an at least partially transparent structure, a grating, a Fresnel-lens, an optical polarizer, or a periodic structure. It is e.g. overlaid with or can be brought to overlay with the display device (8). It makes tampering with the display device (8) more difficult.
The carrier (2) for representing a monetary value as a means of payment comprises a substrate (4), a control unit (10) mounted to the substrate (4), a value store (22) for storing a carrier value of the carrier, and an interface circuit (28) for electronic communication of an external device with the control unit (10). The control unit (10) is adapted and structured to modify the value store (22) upon receipt of a request through said interface circuit (28). A large number of such carriers (2) is used in a payment infrastructure having a plurality of terminal devices (62, 64) that are able to communicate with the carriers through their interface circuits (28). The infrastructure further comprises a central server device (68). Values can be transferred to and/or from individual carriers (2) by various methods. A number of measures are described to protect the carriers (2) and the rest of the infrastructure from tampering.
In order to support the verification of a security document (4), the document (4) is placed on a verification device (1) having a touchscreen (2). A conductive structure (7) embedded in the document (4) is detected by the touchscreen (2) and the position and orientation of a window (10) in the document (4) is calculated therefrom. The verification device (1) then displays an image (12) positioned and rotated to appear at the location of the window (10). The image (12) may interact with the document (4) e.g. to generate Moiré patterns, fluorescent images or animations.
G06F 3/044 - Numériseurs, p.ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
G06Q 20/34 - Architectures, schémas ou protocoles de paiement caractérisés par l'emploi de dispositifs spécifiques utilisant des cartes, p.ex. cartes à puces ou cartes magnétiques
G07F 7/08 - Mécanismes actionnés par des objets autres que des pièces de monnaie pour déclencher ou actionner des appareils de vente, de location, de distribution de pièces de monnaie ou de papier-monnaie, ou de remboursement par carte d'identité codée ou carte de crédit codée
G06F 21/34 - Authentification de l’utilisateur impliquant l’utilisation de dispositifs externes supplémentaires, p.ex. clés électroniques ou cartes à puce intelligentes
G06K 19/067 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p.ex. cartes d'identité ou cartes de crédit
B42D 25/00 - Cartes ou structures de type feuille portant des informations caractérisées par leurs éléments d’identification ou de sécurité; Leur fabrication
9.
A METHOD FOR RETRIEVING INFORMATION FROM A SECURITY DOCUMENT BY MEANS OF A CAPACITIVE TOUCHSCREEN
A security document (1) comprises a non-homogeneous region (6) formed e.g. by a structure (7) of bars (8) that vary the document ' s thickness, dielectric permittivity or electrical conductance. The structure (7) is verified by placing the document (1) on the capacitive touchscreen (10) of a verification device (11). Then, the user moves a finger or pen along the structure (7), which gives rise to a varying capacitive signal in the verification device (11). The signal can then be analyzed for deriving information about the document.
G06K 7/08 - Méthodes ou dispositions pour la lecture de supports d'enregistrement avec des moyens de perception des modifications d'un champ électrostatique ou magnétique, p.ex. par perception des modifications de la capacité entre des électrodes
G06K 19/067 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p.ex. cartes d'identité ou cartes de crédit
A security document (1) is provided with fine surface structures (10), which can e.g. be generated by intaglio print, embossing or lamination. In order to verify the authenticity of the document, the surface structures (10) are pressed against a spatially resolving force sensor (28). The pattern scanned by the force sensor (28) can then be analyzed, e.g. by comparing it to a number of reference patterns.
G07D 7/00 - Vérification spécialement adaptée à la détermination de l’identité ou de l’authenticité de papiers de valeur ou pour discriminer ceux qui sont inacceptables, p.ex. qui ne correspondent pas à une monnaie
The invention relates to a method for producing a piece of authentication information (2) of a security element (1), said piece of authentication information (2) serving to examine the correct combination of at least two or exactly two carrier parts (3, 4, 5, e.g. pages of a passport), wherein the security element (1) comprises at least one partial element (6) having a first piece of partial information (7) and a second partial element (8) having a second piece of partial information (9), wherein the first partial element (6) can be allocated to a first carrier part (3) and the second partial element (8) can be allocated to a second carrier part (4), and wherein the two partial elements (6, 8) are movable from an initial position to an examination position in which the two partial elements (6, 8) overlap, wherein the first piece of partial information (7) and the second piece of partial information (9) in the examination position represent said piece of authentication information (2). The method is characterized in that, in an aligning step, the two partial elements (6, 8) are positioned over each other and aligned relative to each other such that, in a fastening step, the two partial elements (6, 8) are fastened in the aligned positions thereof relative to each other and that, in a processing step, electromagnetic waves (W1, W2, W3, W4, e.g. lasers) are provided by at least one processing means (B) and, by means of said waves (W1, W2, W3, W4), the first piece of partial information (7) and the second piece of partial information (8) are produced, wherein one of the two partial elements (6) is processed directly by said waves and the other of the two partial elements (8) is processed through the one partial element (6).
A method for manufacturing a security device (1) comprises steps of providing a non-uniform first seed pattern (10'), a non-uniform second seed pattern (20'), and a non-uniform third seed pattern (30'). Then, a first pattern (10) is derived using the first seed pattern (10') such that the first pattern (10) is modulated with the first seed pattern (10'). Furthermore, a second pattern (20) is derived using the second seed pattern (20') such that the second pattern (20) is modulated with the second seed pattern (20'). Additionally, a third pattern (30) is derived using the third seed pattern (30') and using the first seed pattern (10') such that the third pattern (30) is modulated with the third seed pattern (30') and with the first seed pattern (10'). Then, an at least partially transparent substrate (2) is provided and, for yielding the security device (1), the first pattern (10), the second pattern (20), and the third pattern (30) are arranged on the substrate (2) such that the first pattern (10), the second pattern (20), and the third pattern (30) at least partially overlap. At least one but not all of the first pattern (10), the second pattern (20), and the third pattern (30) comprises a photoluminescent material which is photoexcitable using at least one optical excitation wavelength (λ_exc). Because a modulation in the first pattern (10) from the first seed pattern (10') is spatially aligned with a modulation in the third pattern (30) from the first seed pattern (10'), specific visual effects are obtained and security is enhanced.
B42D 25/20 - Cartes ou structures de type feuille portant des informations caractérisées par leurs éléments d’identification ou de sécurité; Leur fabrication caractérisées par une utilisation ou une finalité particulières
The invention relates to a security element (1) with authentication information (2) for checking the correct combination of two support parts (3, 4, 5), characterized in that the security element (1) comprises at least one first partial element (6) comprising first partial information (7) and a second partial element (8) comprising second partial information (9). The first partial element (6) can be associated with a first support part (3) and the second partial element (8) can be associated with a second support part (4), both partial elements (6, 8) can be moved from a starting position into a checking position in which both partial elements (6, 8) overlap. The first partial information (7) and the second partial information (9) represent the authentication information (2) when in the checking position.
A security device (1) for verifying an authenticity of a security document (100) comprises an at least partially transparent multilayer substrate (2) with a first surface (3) and a second surface (4). A first pattern (10) is arranged on the first surface (3). This first pattern (10) is derivable using a first seed pattern (10'). A second pattern (20) is arranged on the second surface (4). This second pattern (20) is derivable using a second seed pattern (20'). The security device (1) furthermore comprises a third pattern (30) arranged between a first and a second substrate layer (2a, 2b). The third pattern (30) is derivable using an inversion of the first pattern (10), an inversion of the second pattern (20), and a non-inverted third seed pattern (30'). Transmittances and reflectivities of the patterns (10, 20, 30) are selected such that in a reflection viewing mode, only the first or second seed pattern (10', 20') is visible, respectively. In a transmission viewing mode, only the third seed pattern (30') is visible
B42D 25/351 - Pièces translucides ou en partie translucides, p.ex. fenêtres
B42D 25/45 - Fabrication associant plusieurs couches
B44F 1/08 - Dessins ou peintures caractérisés par des effets de lumière particuliers ou inhabituels caractérisés par des effets de couleur
G07D 7/06 - Vérification spécialement adaptée à la détermination de l’identité ou de l’authenticité de papiers de valeur ou pour discriminer ceux qui sont inacceptables, p.ex. qui ne correspondent pas à une monnaie à l'aide d'un rayonnement ondulatoire ou corpusculaire
G07D 7/12 - Lumière visible, rayonnement infrarouge ou ultraviolet
A security device (1) for verifying an authenticity of a security document (100) comprises an at least partially transparent substrate (2) with a first surface (3) and a second surface (4). A first pattern (10) is arranged on the first surface (3). The first pattern (10) comprises at least a first region (11) and a second non-overlapping region (12). A second pattern (20) is arranged on said second surface (4). The second pattern (20) comprises at least a third region (23) and a fourth non-overlapping region (24). The first region (11) coincides with the third region (23) and the second region (12) coincides with the fourth region (24). Transmittances and reflectivities of the regions (11, 12, 23, 24) are selected such that in a transmission viewing mode, the regions are indiscernible whereas in a reflection viewing mode, the first region (11) is discernible from the second region (13).
B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
B42D 25/00 - Cartes ou structures de type feuille portant des informations caractérisées par leurs éléments d’identification ou de sécurité; Leur fabrication
A security device (1) for verifying an authenticity of a security document (100) comprises an at least partially transparent substrate (2) with a first surface (3) and a second surface (4). A first pattern (10) is arranged on the first surface (3). This first pattern (10) is derivable using a first seed pattern (10'). A second pattern (20) is arranged on said second surface (4). This second pattern (20) is derivable using the first seed pattern (10') and using a second seed pattern (20'). Transmittances and reflectivities of the first and second patterns (10, 20) are selected such that in a reflection viewing mode, only the first seed pattern (10') is visible. In a transmission viewing mode, however, only the second seed pattern (20') is visible.
B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
B42D 25/00 - Cartes ou structures de type feuille portant des informations caractérisées par leurs éléments d’identification ou de sécurité; Leur fabrication
A security device (1) for verifying an authenticity of a security document (100) comprises an at least partially transparent substrate (2) with a first surface (3) and a second surface (4). A first pattern (10) is arranged on the first surface (3). A second pattern (20) is arranged on said second surface (4). The first (10) and the second (20) pattern each comprise a plurality of pixels with at least three different gray levels visible from a macroscopic perspective. The first (10) and second (20) pattern cover only gray levels in a range between 20% black and 80% black, in particular between 35% black and 65% black. The first pattern (10) is inverted with respect to the second pattern (20). As an effect a transmission-mode-viewer (PI) sees a homogeneous image, if the first and the second pattern are superposed, because the first and the second pattern are indiscernible, cancel each other out in the transmission viewing mode. Information disappears. However, in a reflection viewing mode (P2, P3), information contained in the first or in the second pattern can be discerned since the first and the second pattern do not cancel each other out.
A security device (1) for verifying an authenticity of a security document (100) comprises an at least partially transparent substrate (2) with a first surface (3) and a second surface (4). A first pattern (10) is arranged on the first surface (3). This first pattern (10) is derivable using a first seed pattern (10'). A second pattern (20) is arranged on said second surface (4). This second pattern (20) is derivable using the first seed pattern (10') and using a second seed pattern (20'). Transmittances and reflectivities of the first and second patterns (10, 20) are selected such that in a reflection viewing mode, only the first seed pattern (10') is visible. In a transmission viewing mode, however, only the second seed pattern (20') is visible.
The security document comprises a foil element (5) applied to a first side (6) of a substrate (1) as well as a counter layer (8) applied in the same lo-cation at a second side (7) of the substrate (1). The foil element (5) is over its entire extension bound to the substrate (1) and is comparatively thick. Counter layer (8) serves to reduce a tendency of the foil element (5) to cause a buckling of the substrate (1) and has blurred edges (10c, 10d) in order to decrease mechanical stress of the substrate (1) and visibility of the counter layer (8).
B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
B42D 25/00 - Cartes ou structures de type feuille portant des informations caractérisées par leurs éléments d’identification ou de sécurité; Leur fabrication
The security document comprises a substrate (1) carrying visible printed insignia (2 - 5) thereon. A first transparent coating (6) and a second transparent coating (7) are applied on top of the printed insignia (2 - 5). The first transparent coating (6) carries a plurality of surface structures (8), which are invisible to the unaided eye but may be read out by a suitable detection device. The second transparent coating (7) is arranged below the first transparent coating (6) and acts as a barrier preventing the first coating (6), during manufacture, to seep into the underlying structures. Inkjet printing is used for the application of the first transparent coating (6).
A security element (9) for a security document (10) comprises a first, second, third and fourth line grid (R1, R2, R3, R4) which contrasts in each case with the substrate surface (0) and is assigned in each case to a pattern (M1, M2, M3, M4) comprising an embossed structure (P1, P2, P3, P4) of the substrate (9). A first, second, third and fourth pattern angle (phi1, phi2, phi3, phi4) differ from one another. A first security information item (I1) is coded as a localized distribution of the first and the second pattern (R1, R2), and a second security information item (I2) is coded as a localized distribution of the third and the fourth pattern (R3, R4). The first and the second security information item overlap here. By way of an arrangement of the first and the second pattern (R1, R2) in first grid cells (RZ1) and by way of an arrangement of the third and the fourth pattern (R3, R4) in second grid cells (RZ2), and by way of an alternating arrangement of the first and second grid cells, specific intensity distributions which can be used for examining the authenticity result from different viewing directions (A, B, C, D) of the security document.
A method for verifying the authenticity of a security document (100) by means of a camera-equipped cellphone (500) comprises steps of acquiring a transmission mode image and a reflection mode image of the security document (100). Transmitted light through a plurality of perforations (211, 212, 213) in a substrate (200) of the security document (100) is evaluated by means of the cellphone (500). Then, a relative positioning of the perforations (211, 212, 213) with respect to a printed security features is determined, and the security document (100) is considered "authentic" if the determined positions and the acquired images substantially correspond to pre-stored "templates" for the security document (100). The perforations (211, 212, 213) are structured such that they are not visible to the naked eye of a human observer which makes it harder to counterfeit the security document.
G07D 7/12 - Lumière visible, rayonnement infrarouge ou ultraviolet
23.
SECURITY ELEMENT, METHOD FOR PRODUCING SUCH A SECURITY ELEMENT, AND METHOD FOR CHECKING THE AUTHENTICITY OF A SECURITY DOCUMENT WITH SUCH A SECURITY ELEMENT
The invention relates to a security element (5, 5.1, 5.2) for a security document (8). The security element (5, 5.1, 5.2) comprises a plurality of particles (1; 1'), each of which is movably arranged in a respective encapsulation (4). Two sides of each particle (1; 1') have different magnetic and/or electric polarizations, and one of the two sides or another side of each particle (1') is provided with a first coating (2). By applying an electric field and/or a magnetic field, the particles (1; 1') and thus the coatings (2) thereof can be aligned, allowing specific patterns to be created. Said patterns can be read in order to check the authenticity. The invention further relates to a security document with such a security element, to a method for producing such a security element (5, 5.1, 5.2), and to a method for checking the authenticity of a security document (8) with such a security element (5, 5.1, 5.2).
B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
G02B 26/02 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander l'intensité de la lumière
G02F 1/167 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur le mouvement de translation des particules dans un fluide sous l’influence de l’application d’un champ caractérisés par l’effet électro-optique ou magnéto-optique par électrophorèse
G02F 1/17 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments à absorption variable non prévus dans les groupes
G09F 9/37 - Dispositifs d'affichage d'information variable, dans lesquels l'information est formée sur un support, par sélection ou combinaison d'éléments individuels dans lesquels le ou les caractères désirés sont formés par une combinaison d'éléments individuels à éléments mobiles
24.
PERFORATION-BASED SECURITY FEATURE IN A MULTILAYER SUBSTRATE
The security document has a substrate (1) that comprises several substrate layers (7, 8, 20) as well as a microperforation (6). The microperforation (6) is formed by a plurality of holes (9, 14), with at least some of the holes extending not through all, but only through a part of the substrate layers (7, 8, 20). This allows to create a number of security features that are hard to imitate.
A security document has a substrate (1) that can comprise several substrate layers (1a, 1b, 1c). A see-through motif (5) is formed by means of several dye layers (6a, 6b, 6c, 6d), which are magnetic dye layers or infrared dye layers or UV fluorescent dye layers, thereby providing a high degree of safety. If the substrate has several substrate layers (1a, 1b, 1c), at least some of the dye layers can be arranged between the substrate layers (1a, 1b, 1c).
The security system comprises a first security element (5) in the form of a perforation arranged in a first substrate section (7) and a second security element (6) that e.g. carries microletters in a second substrate section (8). When the two substrate sections (7, 8) are brought to an overlap, a recognizable motif is generated, such as an enlarged version of the microletters. The system is especially suited for security documents, such as banknotes, identification documents or documents of value.
The security document has a substrate (1) that comprises at least a first and a second substrate layer (7, 8) arranged on opposite sides of an intermediate layer (10). In a first region (5) of the document, the first and second substrate layers (7, 8) are connected to each other via the intermediate layer (10). Gaps or openings (11) in the intermediate layer (10) form a second region (6) or cavity where the first and second substrates (7, 8) are not connected. The security of the document can e.g. be improved by providing suitable patterns (14, 15) (for eg moire-effects by deforming, bending or compressing the substrate layers) or by embedding loose particles or a foil in the second region (6).
A security document has a substrate (1) with a foil element (6) applied to it. The foil element (6) comprises a security feature, such as a diffractive structure (12), for example a hologram. To easily detect a removal of the foil element (6) using conventional detection devices, markings (4, 14, 15) intersecting with the foil element (6) are printed onto the top surface (7) of the foil element (6), the bottom surface (8) of the foil element (6), or onto the substrate (1), thus that they are removed together with the foil element (6).
B42D 15/10 - Cartes d'identité, cartes de crédit, cartes bancaires ou cartes analogues portant des informations (supports d'enregistrement, p.ex. cartes d'identité ou cartes de crédit, pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques G06K 19/00)
A security document comprises a substrate (1) and an optical waveguide (7). Couplers (10a, 10b) are provided in the waveguide (7) for coupling light into and out of the waveguide. The couplers (10a, 10b) can e.g. by gratings, scattering objects, holograms, luminescent dyes or perforations. The authenticity of the document can be verified using methods based on the properties of the waveguide.
B24D 15/00 - Outils à main ou autres dispositifs pour meuler, polir ou affûter, sans mouvement rotatif
B42D 15/10 - Cartes d'identité, cartes de crédit, cartes bancaires ou cartes analogues portant des informations (supports d'enregistrement, p.ex. cartes d'identité ou cartes de crédit, pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques G06K 19/00)
G07D 7/12 - Lumière visible, rayonnement infrarouge ou ultraviolet
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
30.
MANUFACTURING SECURITY DOCUMENTS USING 3D SURFACE PARAMETERIZATION AND HALFTONE DITHERING
In a method for manufacturing a security document, a three-dimensional surface model is mapped into a two-dimensional parameter space, thereby generating a color or brightness image in this parameter space. The image is rendered using halftone techniques and projected back, as a texture, onto the model, whereupon the model is applied to the document using three-dimensional projection. This technique allows to create a two- dimensional rendering of a three-dimensional textured object where the texture not only serves to emphasize the curvature and orientation of the object's surface, but also serves to encode the color or brightness of the same.
B42D 15/10 - Cartes d'identité, cartes de crédit, cartes bancaires ou cartes analogues portant des informations (supports d'enregistrement, p.ex. cartes d'identité ou cartes de crédit, pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques G06K 19/00)
H04N 1/405 - Conversion en demi-teintes, c.à d. conversion du signal d'image d'un original à tons continus en un signal correspondant ne possédant que deux niveaux
A security element (4) is embedded into a support sheet (10) of a security document by first placing the security element (4) at a first window (12) formed in the support sheet (10), then folding the support sheet (10) along a first folding line (14), thereby arranging a second window (13) over the security element (4). The folded sections (22) and (23) are fixed to each other and to the security element (4). This process allows to embed the security element (4) easily and securely. The support sheet (10) can e.g. be integrated into a passport booklet.
The security document comprises a non-transparent substrate (10) having a window-like opening (7). The substrate (10) is enclosed between a first and a second transparent foil (11, 12), which extend over opening (7). A security element (8) is embedded between the foils (11, 12) at the location of the opening (7). The security element (8) is therefore well protected and difficult to access. The security document can e.g. form part of a passport.
B42D 15/10 - Cartes d'identité, cartes de crédit, cartes bancaires ou cartes analogues portant des informations (supports d'enregistrement, p.ex. cartes d'identité ou cartes de crédit, pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques G06K 19/00)
33.
SECURITY DOCUMENT COMPRISING A LIGHT SOURCE AND A LIGHT-PROCESSING DEVICE
A security document is provided with a light source (14) and with a light-processing device, e.g. in the form of a hologram (18), which processes the light emitted by the light source by deflecting, reflecting, polarizing and/or partially absorbing it. The properties of the light source downstream of the light-processing device which are recognized by the tester or a test device as characteristic increase the security of the document.
B42D 15/10 - Cartes d'identité, cartes de crédit, cartes bancaires ou cartes analogues portant des informations (supports d'enregistrement, p.ex. cartes d'identité ou cartes de crédit, pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques G06K 19/00)
B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
brevets
