EP0993379B1 - Security and/or value document - Google Patents

Abstract

The security method is adopted valuable documents that criminals may wish to forge, e.g. banknotes. The method of preventing forgery is to produce a banknote with a verification element (2). When the banknote is folded, the security element produces a specific visual effect when aligned with a security marking (3). The verification element is in the form of a transparent window that has a lens raster pattern and this interacts with the security marking.

Description

The invention relates to a security and / or document of value according to the preamble of Claim 1.

In particular personal documents, banknotes, securities, Certificates, service cards, such as credit cards or the like, postage stamps, general products, the Authorized are often easy in one reproducible processes can be produced.

It is desirable with these products, characteristics to bring in evidence of their authenticity, i.e. enable their originality.

The security features should be as inseparable as possible be associated with the product to be authorized and / or have properties that are difficult to reproduce are:

The manufacture and application of security features for security and / or securities general state of the art.

A variety of security features are known such as fluorescent fibers / planchettes / colors, micro script, moiree-generating structures, holograms and the like ..

As a security feature in the to be protected Often produce special colors with spectral Special features or with magnetic properties or with temperature dependencies (thermochromic Colors). Barcodes are used for which the reflectivity differences of the surface is used, or there are lattice structures or also film antennas to use the resonance frequency applied in a resonant circuit.

Security documents are known from AU 488 652, where security features by means of transmitted light observation can be checked. Between plastic sheets is an optically variable security element arranged, which has a transparent Viewed window in the cover sheet above can be. It is particularly disadvantageous that the attached security features only in the transmitted light process are visible to the naked eye, and that the material properties of the document are strong are changed.

It is also only a transparent insert Window in banknotes known as a security feature (Australian banknotes).

DE 43 34 847 A1 includes a document of value Window described in which the carrier subsequently is provided with a window-like opening, which are closed with a transparent cover film is, the cover film in this area of the Window with additional security features is provided. The manufacture of the subsequent Break through the bearer of the security into one Window and the cover with a transparent Cover film, which in turn partially with a Security feature is technological complex and has an increase in the thickness of the Result in securities. The condition that areas of the Window must remain transparent in order to be bare Eye the security features in the transmitted light process being able to recognize limits the possibilities concealed security features. It is just like the known ones Window threads in banknotes around elements, which stand alone taken only as a security element, but do not take on any other function. The well-known Windows can also take on their own Include security features.

The authenticity check of the known security features usually requires the use of special Devices, methods and in particular external ones Testing devices such as magnifying glasses for checking micro script, Lenticular grid for checking hidden, graphic elements, UV lamps for visualization of fluorescence, or the transmitted light process optical recognition of the security feature.

DE 36 09 090 A1 contains a security described stored security thread, which without technical aids can be checked visually. The Security thread consists of a transparent Material. A grid is out on a surface Cylinder lenses embossed. On the opposite The surface of the film of the thread is directly one Printed image applied. The print image is below Taking into account the optical properties of the Designed cylindrical lenses. By appropriate Design of the printed image can thus provide information be brought in only under certain Viewing angles are visible.

The disadvantage is that directly under the thread of paper is arranged so that the security feature only in Reflection and not be considered in transmission can. Security is only in the thread. The string forms a common security element.

Document WO-A-98/15418 (Art. 54 (3) and (4), EPC) discloses a security document with a security feature and a verification element for verification of the security feature. The verification element can be an optical lens, an optical filter, a polarizer, or a line grid include.

GB-A-2172850 discloses a security document in the form of a book in one place of his Cover a transparent area with an opaque Has line patterns, and in which within the Encrypted information on the back of the envelope are printed. In the closed state of the book the line pattern comes over the encrypted information to lie and the information is through that Line pattern legible.

The invention has for its object a generic Security and / or value document develop security against counterfeiting increased and the simplified verification of document authenticity guaranteed without external aids.

The solution to this problem results from the features of claim 1.

By teaching of security features and means of verification such as Detectors for verifying the security features on or in a document it is achieved that none external tools to check the authenticity of the Document are required. It can be authenticity of, for example, those on a banknote Security features by for example with a or with several transparent windows on the same Banknote to be checked. The combination of Security features and a verification system on the same banknote increases their security against counterfeiting, since the verification system too a security feature can be designed. to The authenticity can be checked by the show and Back of the banknote can be used. By appropriate folding of the banknote or any other document, which according to the regulation of Invention is formed, or by Stacking several banknotes, one can Security feature can be checked by the Security feature with the verification system, e.g. Window that is brought into effect with each other.

It can be applied to the value document Verification element at various points in the Checked document security features checked become.

In a passport, for example, two opposite ones Document verification pages serve. This can be done using a page with the verification element partial or all over, the other side with the one to be analyzed Safety feature be provided. By the authenticity becomes a suitable superimposition checked. Likewise, two banknotes, checks or two other similarly designed documents of value Authenticity can be checked.

The functionality of the in is decisive the document integrated window. It will essentially no additional thickness of the document is created, because the detection means and the security features on a document in different places are arranged and not one above the other.

The preferred formation of the verification element as a detector / analyzer or decoder in the form one or more transparent windows or also a window with several analyzer areas Detection elements ensures a variety of Variants for checking the authenticity of a large number of possible security features.

The verification elements on / in or on / in multiple windows or in areas of one window are preferably made of a clear, transparent material educated.

The window is designed as an interference filter (transparent diffraction structures, multilayer systems).

• analog zu holografischen Laserschutzbrillen oder
• eine Mischfarbe erscheint in einer anderen Farbe,
• eine reine Spektralfarbe verschwindet.

The transparent window is designed as a holographic filter that reflects a narrow spectral range, either

• analogous to holographic laser safety glasses or
• a mixed color appears in a different color,
• a pure spectral color disappears.

Such a filter is also for two clear windows suitable, with the verification window in a holographic and a non-filtering adjacent part can be divided.

Further advantageous embodiments of the invention result from the subclaims.

Fig. 1

die schematische Darstellung einer Banknote mit einem Fenster und einem Sicherheitsmerkmal,

Fig. 2

die schematische Darstellung der Anordnung von einem Fenster mit zwei Bereichen auf der Banknote als Verifikationselement,

Fig. 3

die schematische Darstellung der Anordnung von einem Fenster mit zwei Bereichen gemäß Fig. 2 zur Ausbildung unterschiedlicher Muster,

Fig. 4

Die schematische Darstellung der Anordnung von zwei nebeneinanderliegenden Fenstern mit unterschiedlichen Verifikationselementen,

Fig. 5

die schematische Darstellung einer Banknote mit Fenstern an einer Ecke.

The invention is explained in more detail below on the basis of exemplary embodiments of a banknote shown in the drawings as a value document. Show it:

Fig. 1

the schematic representation of a banknote with a window and a security feature,

Fig. 2

the schematic representation of the arrangement of a window with two areas on the banknote as a verification element,

Fig. 3

2 shows a schematic representation of the arrangement of a window with two areas according to FIG. 2 to form different patterns,

Fig. 4

The schematic representation of the arrangement of two adjacent windows with different verification elements,

Fig. 5

the schematic representation of a banknote with windows on a corner.

According to the representation in Fig. 1 is a Document of value, e.g. a banknote 1, with a transparent one Window 2 formed, which by the equipment with verification elements as a detector or Like. Is used to a security feature in to verify an area 3 of the banknote 1. The Verification of the security feature in area 3 of the Banknote 1 is e.g. by superimposing them of the two areas 2 and 3.

For many verification effects, it is desirable two different types of verification elements quickly and easily bring about the security feature. This often makes it easier to perceive a change in the case of movement or color change effects. It facilitates verification in cases where a Rotation of the verification element relative to the security feature is required. Such a turn would be great with a single verification window 2 impractical. It will fix these problems the division of the verification window 2 into two adjacent analyzer areas (Fig. 2,3 or the arrangement of two side by side Windows 2 (Fig.4) with different verification elements proposed.

In a further embodiment of the verification element (s) in the window 2 of the banknote 1 Interference filter, generally transparent Diffraction structures, multilayer systems, used.

The interference filters are in / on one preferably formed transparent film material or consist of this material. The filters are on for example a banknote 1 in the area 2 in Combination with a colored graphic element in the Area 3 integrated. By laying them on top of each other the areas 2, 3 of the banknote 1 becomes a certain spectral range in the graphic element, e.g. Writing, hidden or let through by area 2, so that it differs from the original color Color impression arises.

All windows can be in any shape, preferably in a form that corresponds to the type of verification element selected best corresponds, also thread-like or, as shown in Fig. 5, triangular, be trained.

The windows can be placed anywhere in the document, so also on a corner of the document, as in the Fig. 5 is shown as an example, be formed only have to meet the condition that security features and verification elements for verification of the security feature in an operative connection to one another can be brought, for example, by Folding, twisting, stacking one or the other multiple documents.

The superimposition can be in direct contact or in in some cases even at a distance between the Security feature and the verification element respectively.

LIST OF REFERENCE NUMBERS

1

Value document / banknote

2

Area (window / verifier)

3

Area (security feature)

4

analyzer

5

analyzer

6

square

7

star

Claims (4)

1. A security and/or value document comprising a security feature (3) and a verification element (2) for verifying the security feature (3), wherein the security feature (3) and verification element (2) are integrated in the document (1) at different positions, wherein the verification element (2) and the security feature (3) are superimposed when verification takes place, wherein the verification element (2) is formed by at least one window, which contains as a verification means an interference filter, a hologram or a holographic filter.
2. A security and/or value document according to claim 1, wherein the security feature (3) is embodied on the front side and/or rear side.
3. A security and/or value document according to claim 2, wherein the security feature (3) is formed by a window.
4. A security and/or value document according to claim 1, wherein the verification element (2) and the security feature (3) are, for the purpose of verifying the security feature (3), brought into position above each other by folding the document (1), and are machine-recognizable in this effective position.

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