EP0680411A1 - Document with doped optical safety mark, stratified composite paper for producing the same and device for checking the authenticity of the document - Google Patents
Document with doped optical safety mark, stratified composite paper for producing the same and device for checking the authenticity of the documentInfo
- Publication number
- EP0680411A1 EP0680411A1 EP93924429A EP93924429A EP0680411A1 EP 0680411 A1 EP0680411 A1 EP 0680411A1 EP 93924429 A EP93924429 A EP 93924429A EP 93924429 A EP93924429 A EP 93924429A EP 0680411 A1 EP0680411 A1 EP 0680411A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- document
- substances
- film structure
- luminescent substances
- 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
Links
Classifications
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- 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
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- 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
- B42D25/328—Diffraction gratings; Holograms
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- 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
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/373—Metallic materials
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- 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
- B42D25/40—Manufacture
- B42D25/45—Associating two or more layers
- B42D25/465—Associating two or more layers using chemicals or adhesives
- B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
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- B42D2033/04—
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- B42D2033/10—
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- B42D2033/18—
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- B42D2033/20—
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- B42D2035/20—
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- B42D2035/24—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/916—Fraud or tamper detecting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1476—Release layer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24843—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] with heat sealable or heat releasable adhesive layer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2804—Next to metal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2839—Web or sheet containing structurally defined element or component and having an adhesive outermost layer with release or antistick coating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
Definitions
- the invention relates to a document, e.g. Bank note, check, credit card, ID card or ticket, which has an optical security feature in the form of a light reflecting and diffractive and / or refractive layer provided at least in some areas, e.g. a hologram, an interference layer, a (computer-generated) diffraction structure or the like.
- the optical security feature is provided with doping material and is present in a film structure which is attached to the document by means of an adhesive layer and optionally has at least one transparent layer in the film structure.
- the invention is concerned with a film structure for the production of such documents, with a carrier film and a transfer layer which can be detached therefrom and which at least contains the light reflecting and / or refractive and / or refractive layer forming the embossed optical security feature, in particular as an embossing film, preferably as Hot stamping foil is formed, and has an adhesive layer on the side of the reflective layer facing away from the carrier film, it being possible for at least one transparent layer to be arranged in the film structure.
- Documents of the type mentioned at the outset are, for example, from CH-PS 661
- Embossing foils used for the production of such documents of value are e.g. described in DE 34 22 910 Cl.
- the known documents or embossing foils have a diffraction-optically effective structure, which serves primarily as a security feature against color copying, with such diffraction-optically effective, i.e.
- Light reflecting, diffractive and / or refractive structures have the basic advantage that they can be recognized with the unarmed eye, but can also be read by machine.
- Typical structures applied in particular to banknotes include Kinegrams and pixelgrams. The falsification of such structures is very difficult, but is still feasible, if possible, the corresponding
- ERS ⁇ TZBL ⁇ IT (RULE 26) to expose the structured surface and electroplate it or copy it phototechnically.
- DE-OS 37 41 179 discloses the use of two security features, namely a relief embossed on paper and thus already palpable and second as a relief
- Safety feature luminescent substances on the peaks or in the valleys of the relief can from a transfer belt
- the layers of which can be applied to the document by means of an adhesive layer, wherein the transfer tape can contain a color layer made of a luminescent substance, but also a color pigment layer in addition to this luminescent layer.
- DE-OS 39 06 695 shows the embedding of a tape serving as a security element in a document.
- the tape consists of a translucent plastic film which is provided with characters or patterns in the form of cutouts, luminescent substances additionally being arranged in areas which are congruent with the cutouts.
- DE-PS 27 54 267 there are two documents
- SPARE BLADE (RULE 26) nm) to apply those for securing documents with protective coatings that cover the surface.
- the object of the invention is now to be able to carry out the authenticity detection of the optical feature applied to a document by verifying the authenticity independently of an existing (forged) hologram lattice structure and to design the optical feature in such a way that reliable machine detection in the high-speed range ( 10 m / sec) without incorrect readings and resulting rejections can be guaranteed.
- Documents should therefore only be rejected as suspicious if there is an imitation of the optical feature or if it is completely missing.
- documents with damaged optical characteristics are to be steered into a storage compartment for unusable documents during the sorting process and accordingly should not cause any considerable effort in the form of manual processing, as is necessary for rejections.
- the adhesive layer and / or transparent layer in the film structure is doped with at least one luminescent substance. It is also possible that different luminescent substances are contained in the adhesive and / or transparent layer in the film structure.
- the incorporation of the luminescent substances into the adhesive layer has the advantage that in the event of a manipulation attempt on the optical security feature, e.g. the attempt to lift off or peel off, parts of the adhesive layer and thus of the doping material still adhere to the document.
- the adhesive layer with its thickness of about 6 ⁇ m is the thickest layer in the film structure.
- Many luminescent materials, such as rare earths, are of an inorganic nature and have to be ground, whereby with particle sizes below 5 ⁇ m they significantly lose or lose their luminescent properties.
- Many of the luminescent pigments suitable for circulating banknotes with sufficient aging, UV and chemical resistance can only be produced with particle sizes above about 5 ⁇ m.
- ERS ⁇ ZBLA ⁇ (RULE 26)
- the addition of luminescent substances in the transparent layer, but above all in the adhesive layer, has the advantage over structures that are, for example, purely optically diffractive that the security feature can still be determined even if the document or the film structure, for example mechanically, is badly damaged . If a forger succeeds in transferring the diffraction-optically effective structure to a counterfeit value document, the counterfeit would still be detectable because of the lack of luminescent properties on the counterfeit document, but with the original diffraction-effective structure.
- the inventive admixture of luminescent substances to the adhesive and / or a transparent layer in the film structure can be implemented practically without additional effort in the usual production of the documents or the film structure and thus offers a very substantial increase in the security effect without noticeable additional costs.
- the doped adhesive layer can also be applied retrospectively to the prefabricated optical security feature present on the carrier film or, in advance, to the carrier material, in particular paper, at the paper or document manufacturer for safety or production-technical considerations. If, as is possible according to the invention, the luminescent
- Substances in the adhesive and / or transparent layer in the film structure are only provided in certain areas, preferably in a certain, preferably machine-readable pattern, additional security options are offered because then not only a general admixture of the luminescent substances to the adhesive or transparent layer in the Foil construction is sufficient, but additionally the luminescent substances have to be introduced in a very specific way, which is only possible using special machines.
- Luminescent substances are expediently fluorescent or phosphorescent, the decision for the use of fluorescent or phosphorescent substances depending on the intended use
- SPARE BLADE (RULE 26) depends, but possibly there is also the possibility of using fluorescent and phosphorescent substances together, if necessary to provide each of the substances in a specific pattern.
- narrow-band fluorescent substances e.g. from the
- Fluorescent substances with very closely adjacent emissions compared to the excitation wavelength and those with the same emission wavelength can also be used advantageously.
- Deviate slightly from original substances can be reliably determined, above all because the radiation devices used in checking the value documents etc. can be adapted very precisely to the substances to be tested.
- Adhesive layer is formed by a hot melt adhesive, which is then the usual
- the transparent layer in the film construction expediently consists of one of the transparent lacquers known per se.
- the reflecting layer consists of a thin metal layer, preferably formed by vacuum evaporation, e.g. one
- Aluminum layer is formed.
- a release layer e.g. a wax layer is arranged.
- SPARE BLADES (RULE 26) Another object of the invention is a test facility for documents.
- This device has one or more receivers, which can be designed, for example, as photodiodes, photomultipliers, CCD arrays, and are provided for detecting emissions that originate from the luminescent substances present on the document, at least one source for stimulating the luminescent substances , for example a laser tube, laser diodes, light emitting diodes, fluorescent tubes, halogen lamps, X-ray tubes, electron beam tubes and radioactive emitters can be provided.
- the test device can also be set up to detect several measuring points on one and the same document. In such cases, deflection devices are provided for the exciting and / or emitted radiation.
- Galvanometer mirrors or general optical scanners can be considered as deflection devices.
- Acousto-optical modulators can also be used for these purposes.
- the emitted radiation is split up into multiple measuring channels by divider mirrors, to which different filters and / or receivers are assigned. Evaluation devices for the signals received by the receiver are then provided on the receiver.
- Fig. 2 shows a section along line II-II through the value document of FIG. 1, on an enlarged scale, the
- FIG. 6 shows a further luminescence test device, but for testing in transmitted light.
- ERS ⁇ ZBL ⁇ T (RULE 26) 1 has banknote paper as the carrier 1, however, in the case of differently designed value documents, the carrier can also be synthetic paper, a plastic film or, in the case of a credit card, also a plastic card.
- a plastic card can have the name of the holder and an identification number in embossed letters on the front, for example.
- the document of value 1 has a local security feature which is present in a film structure, which can be a layer composite 4, which is shown in FIGS. 3 and 4, where it is designed as an embossing film.
- the layer composite 4 there is an optical security feature, namely a light reflecting and diffractive and / or refractive structure, which is formed, for example, by a thin metal layer 5, which in the embodiment of FIGS. 1 and 2 is between a transparent layer 6 shown as the topmost one Layer composite 4 and an adhesive layer 7 is embedded.
- the adhesive layer 7 serves to fix the layer composite 4 on the surface of the document 1.
- the transparent layer 6 in the layer composite 4 which is drawn as the uppermost layer in the exemplary embodiment (FIG. 2), covers the structure which is formed by the metal layer 5 and has an optical diffraction structure and thus makes it considerably more difficult to attempt to falsify the structure.
- luminescent substances are present in the adhesive layer 7.
- Such substances can also be provided in the transparent layer 6.
- they can only be provided in some areas, namely in area 8, where a head representation is located in the exemplary embodiment.
- a preparation made from narrow-band fluorescent rare earths can be used as the substance.
- the security feature in the value document according to FIG. 1 thus not only consists of the diffraction-optically effective, possibly specially shaped structure in the metal layer 5, but additionally in the layer composite 4 of the
- optical security feature with luminescent properties according to the invention can be applied to documents of value in any manner, for example also by the layers of the layer composite 4 being applied one after the other.
- the layer composite 4 as shown schematically in FIGS. 3 and 4, is applied to a carrier film 9 and is used as an embossing foil, advantageously as a hot stamping foil.
- Such hot stamping foils can, for example, as in DE. 34 22 910 Cl described, be built. They have a carrier film 9 on which, with the interposition of a release layer 10 made of wax, the transfer layer designated as a whole with 11 or 11 'is arranged. When the layered composite 4 is applied to the document 1, the transfer layer 11 or 11 'with its from
- carrier film 9 facing surface pressed on the document 1, under the action of heat, on which it then adheres by means of the adhesive layer 12 or 12 '.
- the carrier film 9 is then removed immediately, which is made easier by the wax release layer 10.
- a reflective layer 15 made of metal, which has an optically diffractive, i.e. Has light refractive or diffractive structure 14.
- SPARE BLADE for example by vacuum deposition of aluminum.
- the layer composite 4 is then completed by applying the adhesive layer 12, 12 '.
- luminescent substances are present in regions 16 of the adhesive layer 12.
- the reflective layer 15 made of metal can be interrupted in these areas.
- the carrier 1 is transparent in order to be able to check for the presence of the luminescent substances from the underside of the carrier, in particular if the carrier 1 is a plastic card.
- the luminescent regions 16 could also be present outside the metal layer 5.
- the luminescent substances are in the transparent layer 13 ', e.g. in regions 16 ', which correspond to the regions 8 formed by the head in FIG. 1.
- the luminescent substances can also be in the entire transparent layer 13, 13 'or entire adhesive layer 12, 12 * be present, which is quite sufficient for certain security purposes. It should also be pointed out that a wide variety of substances, for example fluorescent and phosphorescent substances, can also be used as luminescent substances, even in different mixtures.
- the group of organic luminescent pigments includes an almost colorless benzoxazine derivative, typically fluorescent at 545 nm, which is sold by Riedel-de Haen under the name Lumilux CD 304.
- the series of fluorescent substances in the form of solutions includes a heterocyclic thioxanthene dye, which is sold by Bayer under the trade name Macrolexfluorescence Red GG.
- Rare earths are phosphorescent and have very typical absorption and emission spectra with narrow-band emission lines. Examples include scandium, yttrium and, from the lanthanides, europium.
- a suitable mixture of luminescent substances or a mixture with absorbing substances provides doping materials that are visible
- Fluorescent substances with very closely adjacent emissions compared to the excitation wavelength are also known.
- Resonance fluorescence is a special case where the absorption is equal to the emission line.
- luminescent materials in the form of organic semiconductors based on conjugated polymers are known as poly-p-phenylene-vinylene, the electroluminescence being stimulated by the application of an electrical voltage, in particular for static or quasi-static tests can be used.
- Adhesives that contain luminescent substances can include the following:
- Formulations have: Example 1 (numerical values in parts by weight)
- Unsaturated polyester resin (mp: 100 ° C) 30 wetting agents (40% in butyl acetate)
- Illuminated pigment type: Lumilux C, ⁇ 5 ⁇ ;
- Example 2 (figures in parts by weight) acetone 180
- the test device shown in FIGS. 5 and 6 has at least one receiver 17 for emissions of the luminescent substances present on the document and at least one source 3 for excitation of the luminescent substances.
- source 3 for excite the luminescent substances.
- the receivers 17 for measuring the emissions of the luminescent substances can be photodiodes, photomultipliers and CCD arrays.
- an optical column 2 is arranged between the document to be checked and the receiver 17.
- a filter 18 is located in the beam path of this optical column in front of the receiver 17.
- filters 18 can be used as filters 18, interference filters, edge bandpass filters or combinations of such filters. This provides information about the significant spectral light distribution.
- an optical one
- SPARE BLADE (RULE 26) Columns can be used between the document and the receiver 17, in particular when carrying out areal measurements, optical fibers and fluorescent plates.
- fluorescent plates consist of transparent plastic, in which fluorescent dye molecules are arranged, which are excited by the radiation going from the document to the receiver 17.
- Fig. 6 shows a test device operating in transmitted light mode, i.e. the receiver and the source for the irradiation of the luminescent substances are on different pages of the document.
- the direction of movement of the document is designated by P in FIGS. 5 and 6. From Fig. 6 it can also be seen that in the event that on the document
- Document as a luminescent substance are phosphorescent substances, a distance s is present between the illumination levels or their intersection with the document to be checked and the optical axis (receiver level). This distance can be, for example, 5-10 mm. If the receiver plane is about 8 mm downstream of the illumination plane in the direction of movement P of the document, the luminescence measurement of the afterglow phosphorescent material is carried out with a delay of 1 msec at a document speed of 8 m / sec. If several measuring points are to be recorded on one and the same document in the test arrangement, optical scanners can be used to deflect the illumination and the emitted light. For example, galvanometer mirrors can be used as optical scanners. Acousto-optical modulators can also be used to deflect the radiation from the irradiation device 3.
- Splitter mirrors can be used to split the luminescent light in incident light measurement or in transmitted light measurement into several measurement channels, for example equipped with different filters 18 or receivers 17.
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT229892 | 1992-11-18 | ||
AT2298/92 | 1992-11-18 | ||
AT0229892A AT403967B (en) | 1992-11-18 | 1992-11-18 | DOCUMENT AND FILM STRUCTURE FOR PRODUCING A DOCUMENT |
PCT/AT1993/000176 WO1994011203A1 (en) | 1992-11-18 | 1993-11-17 | Document with doped optical safety mark, stratified composite paper for producing the same and device for checking the authenticity of the document |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0680411A1 true EP0680411A1 (en) | 1995-11-08 |
EP0680411B1 EP0680411B1 (en) | 1998-02-11 |
EP0680411B2 EP0680411B2 (en) | 2002-10-02 |
Family
ID=3531764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93924429A Expired - Lifetime EP0680411B2 (en) | 1992-11-18 | 1993-11-17 | Document with doped optical safety mark, stratified composite paper for producing the same and device for checking the authenticity of the document |
Country Status (12)
Country | Link |
---|---|
US (1) | US6165592A (en) |
EP (1) | EP0680411B2 (en) |
JP (1) | JPH08506772A (en) |
AT (2) | AT403967B (en) |
AU (1) | AU691475B2 (en) |
CA (1) | CA2149550C (en) |
DE (1) | DE59308150D1 (en) |
DK (1) | DK0680411T4 (en) |
ES (1) | ES2115081T5 (en) |
MX (1) | MX9307182A (en) |
RU (1) | RU95112499A (en) |
WO (1) | WO1994011203A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000042114A1 (en) * | 1999-01-14 | 2000-07-20 | Robert Bosch Gmbh | Luminescent electroconductive adhesive |
WO2004108426A2 (en) * | 2003-06-11 | 2004-12-16 | Bundesdruckerei Gmbh | Valuable document comprising a security element and method for producing said valuable document |
US10036125B2 (en) | 2015-05-11 | 2018-07-31 | Nanotech Security Corp. | Security device |
US10478760B2 (en) | 2014-07-09 | 2019-11-19 | Hydac Filtertechnik Gmbh | Filter element with a luminescent marker |
Families Citing this family (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH694636A5 (en) * | 1995-10-12 | 2005-05-13 | Kba Giori Sa | A process for the production of documents with a security feature in the form of a film element and document having such a security feature. |
DE19611383A1 (en) * | 1996-03-22 | 1997-09-25 | Giesecke & Devrient Gmbh | Data carrier with optically variable element |
US7129709B2 (en) * | 1997-04-25 | 2006-10-31 | Whd Electronische Prueftechnik | Method of testing documents provided with optico-diffractively effective markings |
RU2101188C1 (en) * | 1997-05-14 | 1998-01-10 | Павел Евстафиевич Трушко | Information distribution method |
DE19735293C2 (en) † | 1997-08-14 | 2003-06-12 | Bundesdruckerei Gmbh | Value and security product with luminescent element |
WO1999053484A1 (en) * | 1998-04-13 | 1999-10-21 | Seiko Epson Corporation | Information recording method, information reproducing method, recording medium used by the method, information recording device, and information reproducing device |
US6269169B1 (en) * | 1998-07-17 | 2001-07-31 | Imaging Automation, Inc. | Secure document reader and method therefor |
DE19923959A1 (en) * | 1999-05-25 | 2000-11-30 | Giesecke & Devrient Gmbh | Value document |
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US7427029B2 (en) | 2003-06-11 | 2008-09-23 | Bundesdruckerei Gmbh | Valuable document comprising a security element and method for producing said valuable document |
US10478760B2 (en) | 2014-07-09 | 2019-11-19 | Hydac Filtertechnik Gmbh | Filter element with a luminescent marker |
US10036125B2 (en) | 2015-05-11 | 2018-07-31 | Nanotech Security Corp. | Security device |
Also Published As
Publication number | Publication date |
---|---|
DK0680411T4 (en) | 2003-04-14 |
ES2115081T3 (en) | 1998-06-16 |
MX9307182A (en) | 1995-01-31 |
US6165592A (en) | 2000-12-26 |
RU95112499A (en) | 1996-12-27 |
AU691475B2 (en) | 1998-05-21 |
DE59308150D1 (en) | 1998-03-19 |
CA2149550A1 (en) | 1994-05-26 |
EP0680411B2 (en) | 2002-10-02 |
AU5411894A (en) | 1994-06-08 |
ATE163159T1 (en) | 1998-02-15 |
DK0680411T3 (en) | 1999-02-22 |
AT403967B (en) | 1998-07-27 |
JPH08506772A (en) | 1996-07-23 |
ATA229892A (en) | 1997-11-15 |
CA2149550C (en) | 2006-05-16 |
EP0680411B1 (en) | 1998-02-11 |
WO1994011203A1 (en) | 1994-05-26 |
ES2115081T5 (en) | 2003-04-16 |
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