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EP1509402A2 - Security document with an optical security area - Google Patents

Security document with an optical security area

Info

Publication number
EP1509402A2
EP1509402A2 EP03726985A EP03726985A EP1509402A2 EP 1509402 A2 EP1509402 A2 EP 1509402A2 EP 03726985 A EP03726985 A EP 03726985A EP 03726985 A EP03726985 A EP 03726985A EP 1509402 A2 EP1509402 A2 EP 1509402A2
Authority
EP
European Patent Office
Prior art keywords
see
document
security
parallel
dashed lines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03726985A
Other languages
German (de)
French (fr)
Other versions
EP1509402B1 (en
Inventor
Harald Deinhammer
Franz Loos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oesterreichische Banknoten und Sicherheitsdruck GmbH
Original Assignee
Oesterreichische Banknoten und Sicherheitsdruck GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oesterreichische Banknoten und Sicherheitsdruck GmbH filed Critical Oesterreichische Banknoten und Sicherheitsdruck GmbH
Publication of EP1509402A2 publication Critical patent/EP1509402A2/en
Application granted granted Critical
Publication of EP1509402B1 publication Critical patent/EP1509402B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/318—Signatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B42D2035/16—

Definitions

  • the invention relates to a document of value, e.g. Banknote, with an optical security area, which has a first periodic optical structure, e.g. parallel dashed lines, parallel line raster or dot raster, and which contains a security symbol, the contours of which have a second periodic optical structure, e.g. enclose parallel dashed lines, parallel line grids or dot grids, which is arranged offset with respect to the first, the visibility of the security sign being increased by viewing with a see-through element.
  • a document of value e.g. Banknote
  • an optical security area which has a first periodic optical structure, e.g. parallel dashed lines, parallel line raster or dot raster, and which contains a security symbol, the contours of which have a second periodic optical structure, e.g. enclose parallel dashed lines, parallel line grids or dot grids, which is arranged offset with respect to the first, the visibility of the security sign being increased by viewing with a see-
  • Security signs of the type mentioned at the outset are also referred to as "hidden images", the existence of which within the security area of a value document is difficult to prove with the naked eye.
  • These may be hidden lettering, images or geometric figures and these stand out when viewed with a
  • the see-through element can be formed from a grating, from a lenticular lens or similar auxiliary devices, by means of which the displacement between the first and the second periodic, optical structure is made clearly visible
  • the see-through element creates a clearly recognizable contrast on the security area of the document of value, on the basis of which the hidden image is visible to the naked eye.
  • the object of the invention is therefore to provide a document of value of the type mentioned at the outset, which has increased security against forgery.
  • the see-through element is applied to an area of the security area in such a way that the part of the security sign contained in the area covered by the see-through element can be seen with the naked eye.
  • the separately produced see-through element is applied to the document of value according to the invention, so that it is firmly connected to it.
  • Various technologies can be used for this, ranging from gluing to hot stamping.
  • A is also conceivable layered structure of the see-through element on the value document. Due to the see-through element applied to the surface of the document of value, part of the security sign on the document of value is constantly recognizable, while the rest remains hidden from the naked eye.
  • the authenticity is checked with an additional see-through element, for example using a transparent film or card with a line grid or line grating, lenticular lens, or the like, through which the security area is viewed. If the observation with the additional see-through element at the transition point between the area covered by the applied see-through element and the rest of the safety area shows a discontinuity in the course of the contours of the safety sign, then there is a lie Wrong value document, because in the case of a real value document, the visible and invisible part of the security sign when viewed through an additional see-through element placed on the value document, for example, gives the complete and undisturbed contours of the security sign.
  • an additional see-through element for example using a transparent film or card with a line grid or line grating, lenticular lens, or the like
  • the see-through element has a similar or identical optical structuring as the first or second periodic optical structure.
  • the two-dimensional design required for the first and second periodic, optical structure can thus also be used for the applied see-through element, as a result of which the thickness of the see-through element can be kept very small. It therefore only protrudes imperceptibly from the document of value and therefore has no disruptive effect when the document of value is used.
  • the security area can also be formed in a recess in the value document surface and the see-through element can be embedded in this recess.
  • the first periodic optical structure and the second periodic optical structure can each consist of parallel dashed lines, parallel line grids or dot grids, the distance between adjacent dashed lines, parallel line grids or dot grids preferably being that
  • Line grids and grids of this type can be produced very simply using printing technology and produce a clearly recognizable contrast.
  • the parallel line pattern or dot pattern of the first periodic, optical structure are offset by an offset distance (L) from the dashed lines, the parallel line pattern or dot pattern of the second periodic, optical structure are offset in parallel.
  • the parallel displacement of the first and the second periodic, optical structure results in a very clearly recognizable contrast when viewed through a see-through element, in particular if, according to a development of the invention, the displacement distance (L) is approximately equal to half the distance (a) between the dashed lines, the parallel
  • a variant of the invention can also consist in that the see-through element through a transparent film with parallel dashed lines, parallel line grid or
  • Point grid is formed, which e.g. is glued to the value document.
  • Another variant of the invention can be formed in that the see-through element is preferably metallized by a film provided with parallel, elongated slots
  • This type of see-through element can be easily hot stamped onto the surface of the value document according to the invention.
  • the film can be part of a hologram film that is stamped on the value document. This can do that
  • Hologram and the see-through element can be applied to the value document in one operation.
  • 1 shows a plan view of a detail of a value document according to the prior art
  • 2 and 4 each show a top view or partial top view of embodiments of a see-through element for a document of value according to the invention
  • 3 shows a plan view of an embodiment of the value document according to the invention
  • 5 shows a plan view of another embodiment of the security area of a document of value according to the invention
  • FIG. 6 shows a top view of the security area according to FIG. 5 with an applied see-through element
  • FIG. 7 shows a plan view of the security area according to FIG. 6 with an additional see-through element
  • FIGS. 8 to 10 a plan view of a further embodiment of the security area of a document of value according to the invention, corresponding to FIGS. 5 to 7.
  • Fig.l shows a section of an optical security area 3 of a document of value in enlargement, as is known from the prior art.
  • the security area 3 is crossed by white curved lines 8 and black curved lines 7, which are part of a higher-level graphic design of the value document, which have no significance for the invention.
  • the security area 3 has a first periodic optical structure in the form of printed, parallel dashed lines 1, which are shown in black in FIG. 1 on a white background.
  • the periodicity consists in the same spacing of the dashed lines 1, the distance (a) between adjacent dashed lines 1 preferably being 1.5 times the line thickness of the dashed lines 1.
  • the security area 3 contains a security sign 5, the contours of which enclose a second optical structure, which in FIG. 1 are realized in the form of printed, parallel dashed lines 2 in black color on a white background, which have the same mutual spacing a as the dashed lines.
  • the dislocation distance L is approximately (a / 2).
  • the color contrast between the grating lines 1 and the grating lines 2 and the background can be chosen as desired within the scope of the invention.
  • the first and the second periodic, optical structure can, however, also be implemented, for example, in the form of point grids, as in FIG. 3, parallel line grids or in another optically periodic form, the second optical, periodic structure in each case by the contours of the security symbol is delimited from the first optical, periodic structure.
  • the security symbol 5 is relatively easy to recognize. With a suitable choice of the line spacing and the line thickness, the safety sign 5 disappears almost completely in the safety area 3 and cannot be seen with the naked eye.
  • the recognizability of the security sign 5 is increased by viewing with a see-through element 4, as shown in FIGS. 2 and 4, the see-through element 4 having a similar or identical optical structuring to the first or second optical structure ,
  • a see-through element 4 having a similar or identical optical structuring to the first or second optical structure .
  • other suitable see-through elements e.g. Find lenticular lenses.
  • the see-through element is formed by a transparent film 4 with parallel dashed lines 9 which are arranged parallel to one another at a distance (a). If the film 4 is placed on the security area 3 and the dashed lines 9 are brought in parallel to the dashed lines 1, 2, depending on the displacement of the dashed lines 9 and the dashed lines 1 and 2, the security sign 5 is either darker or can be seen lighter than the white background and thus significantly increases its recognizability.
  • the film 4 can also have another optically periodic shape, e.g. Have dot matrix or the like.
  • the see-through element 4 is applied to an area of the security area 3 in such a way that the part of the security sign 5 contained in the area covered by the see-through element 4 can be seen with the naked eye (FIG. 3).
  • the see-through element 4 which is produced separately from the document of value, is applied to the security area 3 in partial coverage thereof, the method of application being subject to no restrictions.
  • the first and the second optical, periodic structure 1, 2 are formed by point grids offset from one another.
  • the see-through element 4 covers the lower half of the security sign 5 hidden in the security area 3, which is composed of the letter sequence “oebs”.
  • a security area 3 designed in this way has a high level of security against forgery, since that
  • Security area 3 can very easily e.g. can be demonstrated by viewing with a lenticular lens. Even small deviations result in a strongly distorted contrast in the transition area.
  • FIG. 4 shows another variant of a see-through element 4, which is formed by a film 4 provided with parallel, elongated slots 10, preferably a metallized plastic film.
  • a see-through element 4 is formed by a film 4 provided with parallel, elongated slots 10, preferably a metallized plastic film.
  • Such a structure can also be used for short distances e.g. manufactured very precisely by etching or selective demetallization and e.g. hot stamped on a value document. It is possible to use slots 10 or demetallized
  • FIG. 5 shows the security area 3 of another value document according to the invention. 6, the see-through element 1 can be applied to it, so that a
  • Part of the security sign 5 is always visible to the naked eye.
  • the security area according to FIG. 7 is viewed through the additional see-through element 6, as a result of which the entire security sign 5 can be seen.
  • FIGS. 8 to 10 show a further embodiment of the security area 3 of a value document according to the invention analogous to FIGS. 5 to 7.
  • additional see-through element 6 markings 61 which can be made in accordance with markings 31 on the document of value according to the invention.
  • the security area 3, in particular the see-through element 4 and / or the line or dot grid, can additionally be provided with further security features such as fluorescence or effect colors in order to further increase security.

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)

Abstract

A security document such as a banknote, comprising an optical security area (3) which consists of a first periodic optical structure, e.g. parallel grid-type lines, a parallel line grid or point grid (1), and which contains a security sign (5) whose contours encompass a second, periodic optical structure, e.g. parallel grid-type lines, a parallel line grid or point grid (2) which is arranged in an offset manner in relation to the first. The recognizibility of the security sign (5) is increased by observation with the aid of a see-through element (4), said element (4) being applied to an area of the security area (4) in such a way that the area of the security sign contained in the area covered by the see-through element (4) can be recognized by the naked eye.

Description

Wertdokument mit einem optischen Sicherheitsbereich Value document with an optical security area
Die Erfindung betrifft ein Wertdokument, z.B. Banknote, mit einem optischen Sicherheitsbereich, der eine erste periodische, optische Struktur, z.B. parallele Strichgitter- Linien, parallele Linienraster oder Punktraster, umfaßt und der ein Sicherheitszeichen enthält, dessen Konturen eine zweite periodische, optische Struktur, z.B. parallele Strichgitter-Linien, parallele Linienraster oder Punktraster, umschließen, die zur ersten versetzt angeordnet ist, wobei die Erkennbarkeit des Sicherheitszeichens durch Betrachtung mit einem Durchsicht- Element erhöht wird.The invention relates to a document of value, e.g. Banknote, with an optical security area, which has a first periodic optical structure, e.g. parallel dashed lines, parallel line raster or dot raster, and which contains a security symbol, the contours of which have a second periodic optical structure, e.g. enclose parallel dashed lines, parallel line grids or dot grids, which is arranged offset with respect to the first, the visibility of the security sign being increased by viewing with a see-through element.
Sicherheitszeichen der eingangs genannten Art werden auch als „hidden images" bezeichnet, deren Existenz innerhalb des Sicherheitsbereiches eines Wertdokuments mit freiem Auge nur schwer nachzuweisen ist. Dabei kann es sich um verborgene Schriftzüge, Bilder oder geometrische Figuren handeln und diese heben sich bei Betrachtung mit einem Durchsicht- Element deutlich vom Untergrund ab. Das Durchsicht-Element kann aus einem Strichgitter, aus einer Lentikular-Linse oder ähnlichen Hilfsvorrichtungen gebildet sein, über welche die Versetzung zwischen der ersten und der zweiten periodischen, optischen Struktur deutlich sichtbar gemacht wird. Erst mit Hilfe des Durchsicht-Elements entsteht auf dem Sicherheitsbereich des Wertdokuments ein deutlich erkennbarer Kontrast, aufgrund dessen die verborgene Abbildung für das freie Auge sichtbar wird.Security signs of the type mentioned at the outset are also referred to as "hidden images", the existence of which within the security area of a value document is difficult to prove with the naked eye. These may be hidden lettering, images or geometric figures and these stand out when viewed with a The see-through element can be formed from a grating, from a lenticular lens or similar auxiliary devices, by means of which the displacement between the first and the second periodic, optical structure is made clearly visible The see-through element creates a clearly recognizable contrast on the security area of the document of value, on the basis of which the hidden image is visible to the naked eye.
Da solche Sicherheitsbereiche in vielen Fällen unmittelbar auf das Wertdokument aufgedruckt werden, können diese mit Hilfe von hochauflösenden Kopierern auf relativ einfache Weise gefälscht werden, oder aber auch von professionellen Fälschern auf relativ einfache Art mittels Einscannen und darauffolgender Bildverarbeitung selbst in das Wertdokument integriert werden.Since in many cases such security areas are printed directly on the value document, they can be falsified in a relatively simple manner with the help of high-resolution copiers, or they can also be integrated into the value document by professional counterfeiters in a relatively simple way by scanning and subsequent image processing.
Aufgabe der Erfindung ist es daher, ein Wertdokument der eingangs genannten Art anzugeben, das eine erhöhte Fälschungssicherheit aufweist.The object of the invention is therefore to provide a document of value of the type mentioned at the outset, which has increased security against forgery.
Erfindungsgemäß wird dies dadurch erreicht, daß das Durchsicht-Element auf einem Bereich des Sicherheitsbereiches so appliziert ist, daß der in dem vom Durchsicht-Element überdeckten Bereich enthaltene Teil des Sicherheitszeichens mit freiem Auge erkennbar ist. Nach dem Ausbilden des Sicherheitsbereiches mit dem darin enthaltenen Sicherheitszeichen wird das separat hergestellte Durchsicht-Element auf das erfindungsgemäße Wertdokument aufgebracht, sodaß es mit diesem fest verbunden ist. Dazu können verschiedene Technologien angewandt werden, die von Kleben bis Heißprägen reichen. Denkbar ist auch ein schichtweiser Aufbau des Durchsicht-Elements auf dem Wertdokument. Durch das auf der Oberfläche des Wertdokuments aufgebrachte Durchsicht-Element wird ein Teil des auf dem Wertdokument befindlichen Sicherheitszeichens ständig erkennbar, während der restliche Teil für das freie Auge verborgen bleibt. Auf diese Weise wird das Auffinden des Sicherheitszeichens auf dem Wertdokument erleichtert, wodurch die Prüfzeiten verkürzt werden können. Diese Applikation macht einen Teil des „hidden images" sichtbar. Dies stellt selbst ein schwer nachzuahmendes Sicherheitsmerkmal dar, da sich - bedingt durch den Moiree-Effekt - ein charakteristischer Effekt ergibt, der durch einfache Farbkopie nicht nachzuahmen ist. Die Prüfung auf Echtheit erfolgt mit einem zusätzlichen Durchsicht- Element, z.B. mittels Transparentfolie oder -karte mit einem Linienraster bzw. Strichgitter, Lentikularlinse, od. dgl, durch das der Sicherheitsbereich betrachtet wird. Kriterium für die Fälschungssicherheit ist die hohe erforderliche Maßhaltigkeit des auf dem Wertdokument aufgebrachten Durchsicht-Elements und seine Lagegenauigkeit gegenüber dem Sicherheitsbereich. Ergibt sich bei der Betrachtung mit dem zusätzlichen Durchsicht-Element an der Übergangsstelle zwischen dem vom applizierten Durchsicht-Element überdeckten Bereich und dem restlichen Sicherheitsbereich eine Unstetigkeit im Verlauf der Konturen des Sicherheitszeichens, dann liegt ein gefälschtes Wertdokument vor, denn bei einem echten Wertdokument ergeben sichtbarer und unsichtbarer Teil des Sicherheitszeichens bei Betrachtung durch ein zusätzliches z.B. auf das Wertdokument gelgtes Durchsicht-Element die vollständig und ungestört verlaufenden Konturen des Sicherheitszeichens. In weiterer Ausbildung der Erfindung kann die Hälfte der vom Sicherheitsbereich eingenommenen Fläche vom Durchsicht-Element überdeckt sein. Bei dieser gewählten Aufteilung ist die Lage des Sicherheitszeichens auf einen Blick erkennbar. Ein weiteres Merkmal der Erfindung kann darin bestehen, daß das Durchsicht-Element eine ähnliche oder identische optische Strukturierung wie die erste oder zweite periodische, optische Struktur aufweist.This is achieved according to the invention in that the see-through element is applied to an area of the security area in such a way that the part of the security sign contained in the area covered by the see-through element can be seen with the naked eye. After the security area has been formed with the security symbol contained therein, the separately produced see-through element is applied to the document of value according to the invention, so that it is firmly connected to it. Various technologies can be used for this, ranging from gluing to hot stamping. A is also conceivable layered structure of the see-through element on the value document. Due to the see-through element applied to the surface of the document of value, part of the security sign on the document of value is constantly recognizable, while the rest remains hidden from the naked eye. This makes it easier to find the security symbol on the value document, which can shorten the inspection times. This application makes part of the "hidden image" visible. This is itself a difficult to imitate security feature, because - due to the moiree effect - there is a characteristic effect that cannot be imitated by a simple color copy. The authenticity is checked with an additional see-through element, for example using a transparent film or card with a line grid or line grating, lenticular lens, or the like, through which the security area is viewed If the observation with the additional see-through element at the transition point between the area covered by the applied see-through element and the rest of the safety area shows a discontinuity in the course of the contours of the safety sign, then there is a lie Wrong value document, because in the case of a real value document, the visible and invisible part of the security sign when viewed through an additional see-through element placed on the value document, for example, gives the complete and undisturbed contours of the security sign. In a further embodiment of the invention, half of the area occupied by the security area can be covered by the see-through element. With this division, the location of the safety sign can be seen at a glance. Another feature of the invention can be that the see-through element has a similar or identical optical structuring as the first or second periodic optical structure.
Damit kann die für die erste und zweite periodische, optische Struktur erforderliche zweidimensionale Gestaltung auch für das applizierte Durchsicht-Element angewandt werden, wodurch die Dicke des Durchsicht-Elements sehr gering gehalten werden kann. Es steht daher nur unmerklich über das Wertdokument hervor und entfaltet dadurch keine bei Gebrauch des Wertdokuments störende Wirkung. Es kann der Sicherheitsbereich aber auch in einer Vertiefung der Wertdokument-Oberfläche ausgebildet und das Durchsicht-Element in dieser Vertiefung eingebettet sein. Gemäß einer weiteren Ausbildung der Erfindung kann die erste periodische, optische Struktur und die zweite periodische optische Struktur jeweils aus parallelen Strichgitter-Linien, parallelen Linienrastern oder Punktrastern bestehen, wobei der Abstand zwischen benachbarten Strichgitter-Linien, parallelen Linienrastern oder Punktrastern bevorzugt dasThe two-dimensional design required for the first and second periodic, optical structure can thus also be used for the applied see-through element, as a result of which the thickness of the see-through element can be kept very small. It therefore only protrudes imperceptibly from the document of value and therefore has no disruptive effect when the document of value is used. However, the security area can also be formed in a recess in the value document surface and the see-through element can be embedded in this recess. According to a further embodiment of the invention, the first periodic optical structure and the second periodic optical structure can each consist of parallel dashed lines, parallel line grids or dot grids, the distance between adjacent dashed lines, parallel line grids or dot grids preferably being that
1,5-fache der Strichstärke der Strichgitter-Linien, parallelen Linienraster oder Punktraster beträgt.1.5 times the line width of the dashed lines, parallel line grid or dot grid.
Strichgitter und Raster dieser Art können drucktechnisch sehr einfach hergestellt werden und ergeben einen deutlich erkennbaren Kontrast.Line grids and grids of this type can be produced very simply using printing technology and produce a clearly recognizable contrast.
Weiters kann bei einer anderen Ausführungsform der Erfindung vorgesehen sein, daß dieFurthermore, it can be provided in another embodiment of the invention that the
Strichgitter-Linien, das parallele Linienraster oder Punktraster der ersten periodischen, optischen Struktur um einen Versetzungsabstand (L) gegen die Strichgitter-Linien, das parallele Linienraster oder Punktraster der zweiten periodischen, optischen Struktur parallel versetzt sind.Dashed lines, the parallel line pattern or dot pattern of the first periodic, optical structure are offset by an offset distance (L) from the dashed lines, the parallel line pattern or dot pattern of the second periodic, optical structure are offset in parallel.
Durch die parallele Versetzung der ersten und der zweiten periodischen, optischen Struktur, ergibt sich bei Betrachtung durch ein Durchsicht-Element ein sehr gut erkennbarer Kontrast, insbesondere wenn gemäß einer Weiterbildung der Erfindung der Versetzungsabstand (L) ungefähr gleich dem halben Abstand (a) zwischen den Strichgitter-Linien, dem parallelenThe parallel displacement of the first and the second periodic, optical structure results in a very clearly recognizable contrast when viewed through a see-through element, in particular if, according to a development of the invention, the displacement distance (L) is approximately equal to half the distance (a) between the dashed lines, the parallel
Linienraster oder Punktraster der ersten oder zweiten periodischen, optischen Struktur beträgt.Line grid or dot grid of the first or second periodic optical structure.
Eine Variante der Erfindung kann ferner darin bestehen, daß das Durchsicht-Element durch eine transparente Folie mit parallelen Strichgitter-Linien, parallelem Linienraster oderA variant of the invention can also consist in that the see-through element through a transparent film with parallel dashed lines, parallel line grid or
Punktraster gebildet ist, welche z.B. auf das Wertdokument aufgeklebt wird.Point grid is formed, which e.g. is glued to the value document.
Eine andere Variante der Erfindung kann dadurch gebildet sein, daß das Durchsicht-Element durch eine mit parallelen, länglichen Schlitzen versehene Folie, vorzugsweise metallisierteAnother variant of the invention can be formed in that the see-through element is preferably metallized by a film provided with parallel, elongated slots
Kunststofffolie, gebildet ist.Plastic film is formed.
Diese Art des Durchsicht-Elements kann auf einfache Weise heiß auf die Oberfläche des erfindungsgemäßen Wertdokuments aufgeprägt werden. Weiters kann die Folie Bestandteil einer Hologramm-Folie sein, die auf das Wertdokument aufgeprägt ist. Dadurch kann dasThis type of see-through element can be easily hot stamped onto the surface of the value document according to the invention. Furthermore, the film can be part of a hologram film that is stamped on the value document. This can do that
Hologramm und das Durchsicht-Element in einem Arbeitsgang auf das Wertdokument aufgebracht werden.Hologram and the see-through element can be applied to the value document in one operation.
Nachfolgend wird die Erfindung anhand der in den Zeichnungen dargestelltenThe invention is described below with reference to the drawings
Ausführungsbeispiele eingehend erläutert. Es zeigt dabeiExemplary embodiments explained in detail. It shows
Fig.1 eine Draufsicht auf ein Detail eines Wertdokuments gemäß Stand der Technik; Fig.2 und Fig.4 jeweils eine Draufsicht bzw. teilweise Draufsicht auf Ausführungsformen eines Durchsicht-Elements für ein erfindungsgemäßes Wertdokument; Fig.3 eine Draufsicht auf eine Ausfuhrungsform des erfindungsgemäßen Wertdokuments; Fig. 5 eine Draufsicht auf eine andere Ausführungsform des Sicherheitsbereiches eines erfindungsgemäßen Wertdokumentes;1 shows a plan view of a detail of a value document according to the prior art; 2 and 4 each show a top view or partial top view of embodiments of a see-through element for a document of value according to the invention; 3 shows a plan view of an embodiment of the value document according to the invention; 5 shows a plan view of another embodiment of the security area of a document of value according to the invention;
Fig. 6 eine Draufsicht auf den Sicherheitsbereich gemäß Fig. 5 mit appliziertem Durchsicht- Element;FIG. 6 shows a top view of the security area according to FIG. 5 with an applied see-through element;
Fig. 7 eine Draufsicht auf den Sicherheitsbereich gemäß Fig. 6 mit einem zusätzlichen Durchsichtelement; und7 shows a plan view of the security area according to FIG. 6 with an additional see-through element; and
Fig. 8 bis 10 eine Draufsicht einer weiteren Aus ϊihrungsform des Sicherheitsbereiches eines erfindungsgemäßen Wertdokumentes, entsprechend den Fig. 5 bis 7.8 to 10 a plan view of a further embodiment of the security area of a document of value according to the invention, corresponding to FIGS. 5 to 7.
Fig.l zeigt einen Ausschnitt aus einem optischen Sicherheitsbereich 3 eines Wertdokuments in Vergrößerung, wie es aus dem Stand der Technik bekannt ist. Der Sicherheitsbereich 3 ist durchzogen von weißen geschwungenen Linien 8 und schwarzen geschwungenen Linien 7, die Teil einer übergeordneten graphischen Gestaltung des Wertdokuments sind, welche für die Erfindung keine Bedeutung haben.Fig.l shows a section of an optical security area 3 of a document of value in enlargement, as is known from the prior art. The security area 3 is crossed by white curved lines 8 and black curved lines 7, which are part of a higher-level graphic design of the value document, which have no significance for the invention.
Unter Wertpapier werden im Rahmen der Erfindung Banknoten, Schecks, Reiseschecks, Aktien, Ausweise, Scheckkarten od. dgl. verstanden, die eine bedruckbare Oberfläche aufweisen und gegen eine unerlaubte Vervielfältigung geschützt werden sollen. Dazu weist der Sicherheitsbereich 3 eine erste periodische optische Struktur in Form von aufgedruckten, parallelen Strichgitter-Linien 1 auf, die in Fig.1 in schwarzer Farbe auf weißem Untergrund gehalten sind. Die Periodizität besteht in der gleichen Beabstandung der Strichgitter-Linien 1, wobei der Abstand (a) zwischen benachbarten Strichgitter-Linien 1 bevorzugt das 1,5 fache der Strichstärke der Strichgitter-Linien 1 beträgt.In the context of the invention, securities are understood to be banknotes, checks, traveller's checks, shares, identity cards, check cards or the like, which have a printable surface and are intended to be protected against unauthorized duplication. For this purpose, the security area 3 has a first periodic optical structure in the form of printed, parallel dashed lines 1, which are shown in black in FIG. 1 on a white background. The periodicity consists in the same spacing of the dashed lines 1, the distance (a) between adjacent dashed lines 1 preferably being 1.5 times the line thickness of the dashed lines 1.
Im Sicherheitsbereich 3 ist ein Sicherheitszeichen 5 enthalten, dessen Konturen eine zweite optische Struktur umschließen, die in Fig.l in Form von aufgedruckten, parallelen Strichgitter-Linien 2 in schwarzer Farbe auf weißem Untergrund realisiert sind, die denselben gegenseitigen Abstand a wie die Strichgitter-Linien 1 der ersten periodischen, optischen Struktur aufweisen, aber um den Versetzungsabstand L gegen die Strichgitter-Linien 2 der zweiten periodischen, optischen Struktur parallel versetzt sind. Der Versetzungsabstand L beträgt dabei ungefähr (a/2). Der Farbkontrast zwischen Strichgitter-Linien 1 bzw. Strichgitter-Linien 2 und dem Untergrund kann im Rahmen der Erfindung beliebig gewählt sein. Die erste und die zweite periodische, optische Struktur können aber auch z.B. in Form von Punkt-Rastern, wie in Fig.3, parallelen Linienrastern oder in anderer optisch periodischer Form realisiert sein, wobei die zweite optische, periodische Struktur jeweils durch die Konturen des Sicherheitszeichens gegenüber der ersten optischen, periodischen Struktur abgegrenzt ist.The security area 3 contains a security sign 5, the contours of which enclose a second optical structure, which in FIG. 1 are realized in the form of printed, parallel dashed lines 2 in black color on a white background, which have the same mutual spacing a as the dashed lines. Have lines 1 of the first periodic optical structure, but are offset in parallel by the offset distance L against the dashed lines 2 of the second periodic optical structure. The dislocation distance L is approximately (a / 2). The color contrast between the grating lines 1 and the grating lines 2 and the background can be chosen as desired within the scope of the invention. The first and the second periodic, optical structure can, however, also be implemented, for example, in the form of point grids, as in FIG. 3, parallel line grids or in another optically periodic form, the second optical, periodic structure in each case by the contours of the security symbol is delimited from the first optical, periodic structure.
Aufgrund der in Fig.1 gewählten Vergrößerung ist das Sicherheitszeichen 5 relativ leicht zu erkennen. Bei geeigneter Wahl des Linienabstandes und der Liniendicke verschwindet aber das Sicherheitszeichen 5 beinahe vollkommen im Sicherheitsbereich 3 und ist mit freiem Auge nicht zu erkennen.Because of the magnification selected in FIG. 1, the security symbol 5 is relatively easy to recognize. With a suitable choice of the line spacing and the line thickness, the safety sign 5 disappears almost completely in the safety area 3 and cannot be seen with the naked eye.
Die Erkennbarkeit des Sicherheitszeichens 5 wird durch Betrachtung mit einem Durchsicht- Element 4, wie es in Fig.2 und Fig.4 dargestellt ist, erhöht, wobei das Durchsicht-Element 4 eine ähnliche oder identische optische Strukturierung wie die erste oder zweite optische Struktur aufweist. Es können aber auch andere geeignete Durchsicht-Elemente, z.B. Lentikular-Linsen Anwendung finden.The recognizability of the security sign 5 is increased by viewing with a see-through element 4, as shown in FIGS. 2 and 4, the see-through element 4 having a similar or identical optical structuring to the first or second optical structure , However, other suitable see-through elements, e.g. Find lenticular lenses.
Im Ausfuhrungsbeispiel gemäß Fig.2 ist das Durchsicht-Element durch eine transparente Folie 4 mit parallelen Strichgitter-Linien 9 gebildet, die im Abstand (a) zueinander parallel angeordnet sind. Wird die Folie 4 auf den Sicherheitsbereich 3 gelegt und die Strichgitter- Linien 9 in Parallellage zu den Strichgitter-Linien 1, 2 gebracht, so wird je nach Versetzung der Strichgitter-Linien 9 und der Strichgitter-Linien 1 und 2 das Sicherheitszeichen 5 entweder dunkler oder heller gegenüber dem weißen Untergrund zu sehen sein und damit die Erkennbarkeit desselben signifikant gesteigert.In the exemplary embodiment according to FIG. 2, the see-through element is formed by a transparent film 4 with parallel dashed lines 9 which are arranged parallel to one another at a distance (a). If the film 4 is placed on the security area 3 and the dashed lines 9 are brought in parallel to the dashed lines 1, 2, depending on the displacement of the dashed lines 9 and the dashed lines 1 and 2, the security sign 5 is either darker or can be seen lighter than the white background and thus significantly increases its recognizability.
Die Folie 4 kann auch eine andere optisch periodische Form, z.B. Punktraster od. dgl. aufweisen.The film 4 can also have another optically periodic shape, e.g. Have dot matrix or the like.
Erfϊndungsgemäß ist nun vorgesehen, daß das Durchsicht-Element 4 auf einem Bereich des Sicherheitsbereiches 3 so appliziert ist, daß der in dem vom Durchsicht-Element 4 überdeckten Bereich enthaltene Teil des Sicherheitszeichens 5 mit freiem Auge erkennbar ist (Fig.3).According to the invention, it is now provided that the see-through element 4 is applied to an area of the security area 3 in such a way that the part of the security sign 5 contained in the area covered by the see-through element 4 can be seen with the naked eye (FIG. 3).
Somit wird das getrennt vom Wertdokument hergestellte Durchsicht-Element 4 auf den Sicherheitsbereich 3 in teilweise Überdeckung desselben aufgebracht, wobei die Methode des Aufbringens keinerlei Einschränkungen unterworfen ist.Thus, the see-through element 4, which is produced separately from the document of value, is applied to the security area 3 in partial coverage thereof, the method of application being subject to no restrictions.
In Fig.3 ist die erste und die zweite optische, periodische Struktur 1,2 durch gegeneinander versetzte Punktraster gebildet. Wie in Fig.3 erkennbar, überdeckt das Durchsicht-Element 4 die untere Hälfte des in dem Sicherheitsbereich 3 versteckten Sicherheitszeichens 5, welches sich aus der Buchstabenfolge „oebs" zusammensetzt.In FIG. 3, the first and the second optical, periodic structure 1, 2 are formed by point grids offset from one another. As can be seen in FIG. 3, the see-through element 4 covers the lower half of the security sign 5 hidden in the security area 3, which is composed of the letter sequence “oebs”.
Ein derartig gestalteter Sicherheitsbereich 3 weist eine hohe Fälschungssicherheit auf, da dasA security area 3 designed in this way has a high level of security against forgery, since that
Aufbringen eines Durchsicht-Elementes 4 mit einer sehr hohen Genauigkeit erfolgen muß und die Haltbarkeit auf dem Wertdokument nur mit hohem gerätetechnischen Aufwand verläßlich gewährleistet werden kann.Application of a see-through element 4 must take place with a very high degree of accuracy and the durability on the document of value can only be reliably guaranteed with a high expenditure on equipment.
Wird andererseits eine Fälschung des Wertdokuments dadurch zu erreichen versucht, daß eine mit einem vorgefertigten Schriftzug versehene Folie 4, die das Durchsicht-Element bildet, auf den Sicherheitsbereich 3 aufgebracht wird, so stimmt dann der nicht überdeckte Teil desIf, on the other hand, a forgery of the value document is attempted by applying a film 4 provided with a prefabricated lettering, which forms the see-through element, to the security area 3, then the uncovered part of the document is correct
Schriftzuges von Sicherheitszeichen 5 nicht exakt mit dem Verlauf des Schriftzuges auf derLettering of security symbol 5 not exactly with the course of the lettering on the
Folie 4 überein. Die Übereinstimmung beim Übergang von der Folie 4 auf den gedrucktenSlide 4 match. The correspondence in the transition from the film 4 to the printed one
Sicherheitsbereich 3 kann sehr leicht z.B. durch Betrachten mittels einer Lentikular-Linse nachgewiesen werden. Bereits kleine Abweichungen ergeben einen stark verzerrten Kontrast im Übergangsbereich.Security area 3 can very easily e.g. can be demonstrated by viewing with a lenticular lens. Even small deviations result in a strongly distorted contrast in the transition area.
Die gesamte Anordnung wie sie in Fig.3 gezeigt ist kann auch nicht zum Zwecke einerThe entire arrangement as shown in Figure 3 can also not for the purpose of
Fälschung als Ganzes kopiert werden, weil die Punktrasterung über die Auflösungsgrenze eines Kopierers erhöht werden kann.Counterfeit as a whole can be copied because the dot raster can be increased beyond the resolution limit of a copier.
Fig.4 zeigt eine andere Variante eines Durchsicht-Elementes 4, das durch eine mit parallelen, länglichen Schlitzen 10 versehene Folie 4, vorzugsweise eine metallisierte Kunststofffolie, gebildet ist. Eine solche Struktur kann auch für geringe Abstände z.B. durch Ätzen oder selektive Demetallisierung sehr präzise hergestellt und z.B. auf ein Wertdokument heiß aufgeprägt werden. Dabei besteht die Möglichkeit die mit Schlitzen 10 oder demetallisierten4 shows another variant of a see-through element 4, which is formed by a film 4 provided with parallel, elongated slots 10, preferably a metallized plastic film. Such a structure can also be used for short distances e.g. manufactured very precisely by etching or selective demetallization and e.g. hot stamped on a value document. It is possible to use slots 10 or demetallized
Bereichen versehene Folie 4 in einem Hologramm zu integrieren, sodaß sie Bestandteil desselben ist.To integrate areas provided film 4 in a hologram so that it is part of the same.
In Fig. 5 ist der Sicherheitsbereich 3 eines anderen erfindungsgemäßen Wertdokuments dargestellt. Gemäß Fig. 6 kann auf dieses das Durchsicht-Element 1 appliziert sein, sodaß ein5 shows the security area 3 of another value document according to the invention. 6, the see-through element 1 can be applied to it, so that a
Teil des Sicherheitszeichens 5 ständig mit freiem Auge erkennbar ist. Bei der Prüfung wird der Sicherheitsbereich gemäß Fig. 7 durch das zusätzliche Durchsicht-Element 6 betrachtet, wodurch das gesamte Sicherheitszeichen 5 ersichtlich ist.Part of the security sign 5 is always visible to the naked eye. During the test, the security area according to FIG. 7 is viewed through the additional see-through element 6, as a result of which the entire security sign 5 can be seen.
In den Fig. 8 bis 10 ist eine weitere Ausführungsform des Sicherheitsbereiches 3 eines erfindungsgemäßen Wertdokuments analog den Fig. 5 bis 7 dargestellt. Um ein schnelles und exaktes Auflegen des zusätzlichen Durchsicht-Elementes 6 zu erleichtern, kann das zusätzliche Durchsicht-Element 6 Markierungen 61 aufweisen, die in Übereinstimmung mit Markierungen 31 auf dem erfindungsgemäßen Wertdokument gebracht werden können. Der Sicherheitsbereich 3, insbesondere das Durchsicht-Element 4 und/oder der Strich- oder Punktraster, kann zusätzlich noch mit weiteren Sicherheitsmerkmalen wie z.B. Fluoreszenzoder Effektfarben versehen sein, um die Sicherheit weiter zu erhöhen. 8 to 10 show a further embodiment of the security area 3 of a value document according to the invention analogous to FIGS. 5 to 7. In order to facilitate a quick and exact placement of the additional see-through element 6, this can be done have additional see-through element 6 markings 61, which can be made in accordance with markings 31 on the document of value according to the invention. The security area 3, in particular the see-through element 4 and / or the line or dot grid, can additionally be provided with further security features such as fluorescence or effect colors in order to further increase security.

Claims

P A T E N T A N S P R Ü C H E PATENT CLAIMS
1. Wertdokument, z.B. Banknote, mit einem optischen Sicherheitsbereich, der eine erste periodische, optische Struktur, z.B. parallele Strichgitter-Linien, ein paralleles Linienraster oder Punktraster, umfaßt und der ein Sicherheitszeichen enthält, dessen Konturen eine zweite periodische, optische Struktur, z.B. parallele Strichgitter-Linien, ein paralleles Linienraster oder Punktraster, umschließen, die zur ersten versetzt angeordnet ist, wobei die Erkennbarkeit des Sicherheitszeichens durch Betrachtung mit einem Durchsicht-Element erhöht wird, dadurch gekennzeichnet, daß das Durchsicht-Element (4) auf einem Bereich des Sicherheitsbereiches (3) so appliziert ist, daß der in dem vom Durchsicht-Element (4) überdeckten Bereich enthaltene Teil des Sicherheitszeichens (5) mit freiem Auge erkennbar ist.1. Value document, e.g. Banknote, with an optical security area, which has a first periodic optical structure, e.g. includes parallel dashed lines, a parallel line raster or dot raster, and which contains a security sign, the contours of which have a second periodic optical structure, e.g. enclose parallel dashed lines, a parallel line grid or dot grid, which is arranged offset to the first, the visibility of the security sign is increased by viewing with a see-through element, characterized in that the see-through element (4) on an area of the Security area (3) is applied so that the part of the security sign (5) contained in the area covered by the see-through element (4) can be seen with the naked eye.
2. Wertdokument nach Anspruch 1, dadurch gekennzeichnet, daß die Hälfte der vom Sicherheitsbereich (3) eingenommenen Fläche vom Durchsicht-Element (4) überdeckt ist.2. Value document according to claim 1, characterized in that half of the area occupied by the security area (3) is covered by the see-through element (4).
3. Wertdokument nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Durchsicht-Element (4) eine ähnliche oder identische optische Strukturierung wie die erste oder zweite periodische, optische Struktur aufweist.3. Value document according to claim 1 or 2, characterized in that the see-through element (4) has a similar or identical optical structuring as the first or second periodic optical structure.
4. Wertdokument nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die erste periodische, optische Struktur und die zweite periodische optische Struktur jeweils aus parallelen Strichgitter-Linien, parallelen Linienrastern oder Punktrastern (1, 2) bestehen, wobei der Abstand zwischen benachbarten Strichgitter-Linien, parallelen Linienrastern oder Punktrastern (1, 2) bevorzugt das 1,5-fache der Strichstärke der Strichgitter-Linien, parallelen Linienraster oder Punktraster (1, 2) beträgt.4. document of value according to claim 1, 2 or 3, characterized in that the first periodic, optical structure and the second periodic optical structure each consist of parallel dashed lines, parallel line grids or dot patterns (1, 2), the distance between adjacent Dashed lines, parallel line grids or dot grids (1, 2) are preferably 1.5 times the line width of the dashed lines, parallel line grids or dot grids (1, 2).
5. Wertdokument nach Anspruch 4, dadurch gekennzeichnet, daß die Strichgitter- Linien, das parallele Linienraster oder Punktraster (1) der ersten periodischen, optischen Struktur um einen Versetzungsabstand (L) gegen die Strichgitter-Linien, das parallele Linienraster oder Punktraster (2) der zweiten periodischen, optischen Struktur parallel versetzt sind. 5. document of value according to claim 4, characterized in that the dashed lines, the parallel line pattern or dot matrix (1) of the first periodic, optical structure by an offset distance (L) against the dashed lines, the parallel line pattern or dot pattern (2) of the second periodic optical structure are offset in parallel.
6. Wertdokument nach Anspruch 5, dadurch gekennzeichnet, daß der Versetzungsabstand (L) ungefähr gleich dem halben Abstand (a) zwischen den Strichgitter- Linien, dem parallelen Linienraster oder Punktraster (1, 2 ) der ersten oder zweiten periodischen, optischen Struktur beträgt.6. document of value according to claim 5, characterized in that the displacement distance (L) is approximately equal to half the distance (a) between the dashed lines, the parallel line pattern or dot pattern (1, 2) of the first or second periodic, optical structure.
7. Wertdokument nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Durchsicht-Element durch eine transparente Folie (4) mit parallelen Strichgitter- Linien, parallelem Linienraster oder Punktraster (9) gebildet ist.7. Value document according to one of the preceding claims, characterized in that the see-through element is formed by a transparent film (4) with parallel dashed lines, parallel line grid or dot matrix (9).
8. Wertdokument nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Durchsicht-Element durch eine mit parallelen, länglichen Schlitzen (10) versehene Folie (4), vorzugsweise metallisierte Kunststofffolie, gebildet ist.8. Document of value according to one of claims 1 to 6, characterized in that the see-through element is formed by a film (4), preferably metallized plastic film, provided with parallel, elongated slots (10).
9. Wertdokument nach Anspruch 8, dadurch gekennzeichnet, daß die Folie Bestandteil einer Hologramm-Folie ist, die auf das Wertdokument aufgeprägt ist. 9. document of value according to claim 8, characterized in that the film is part of a hologram film which is stamped on the document of value.
EP03726985A 2002-05-14 2003-05-12 Security document with an optical security area Expired - Lifetime EP1509402B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0073602A AT412392B (en) 2002-05-14 2002-05-14 VALUE DOCUMENT WITH AN OPTICAL SECURITY AREA
AT7362002 2002-05-14
PCT/AT2003/000135 WO2003095221A2 (en) 2002-05-14 2003-05-12 Security document with an optical security area

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EP (1) EP1509402B1 (en)
AT (2) AT412392B (en)
AU (1) AU2003232902A1 (en)
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WO2003095221A2 (en) 2003-11-20
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ES2376852T3 (en) 2012-03-20
WO2003095221A3 (en) 2004-03-18
US20050094229A1 (en) 2005-05-05
US6995883B2 (en) 2006-02-07
EP1509402B1 (en) 2011-11-02
ATA7362002A (en) 2004-07-15
AU2003232902A1 (en) 2003-11-11

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