EP1673231B2 - Wertdokument mit verschiedenen merkmalstoffen - Google Patents

Wertdokument mit verschiedenen merkmalstoffen Download PDF

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Publication number
EP1673231B2
EP1673231B2 EP04765834.9A EP04765834A EP1673231B2 EP 1673231 B2 EP1673231 B2 EP 1673231B2 EP 04765834 A EP04765834 A EP 04765834A EP 1673231 B2 EP1673231 B2 EP 1673231B2
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EP
European Patent Office
Prior art keywords
value document
feature substance
value
substance
feature
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.)
Active
Application number
EP04765834.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1673231A1 (de
EP1673231B1 (de
Inventor
Gerhard Schwenk
Thomas Giering
Gerhard Stenzel
Wittich Kaule
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.)
Giesecke and Devrient Currency Technology GmbH
Original Assignee
Giesecke and Devrient Currency Technology 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
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Application filed by Giesecke and Devrient Currency Technology GmbH filed Critical Giesecke and Devrient Currency Technology GmbH
Priority to PL04765834T priority Critical patent/PL1673231T5/pl
Publication of EP1673231A1 publication Critical patent/EP1673231A1/de
Application granted granted Critical
Publication of EP1673231B1 publication Critical patent/EP1673231B1/de
Publication of EP1673231B2 publication Critical patent/EP1673231B2/de
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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
    • B42D25/20—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
    • 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
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light
    • 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
    • Y10S283/00—Printed matter
    • Y10S283/901—Concealed data
    • 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
    • Y10S283/00—Printed matter
    • Y10S283/904—Credit card

Definitions

  • the invention relates to a value document, in particular a banknote, with a value document substrate and at least two different feature substances for checking the value document.
  • the value document contains a machine-authenticated low security feature that is formed from a single material. When queried, the low security feature provides a yes / no response indicating the presence or absence of the queried property.
  • the low security feature is used for authentication in applications where a simple detector is used, such as in retail outlets.
  • Another high-security feature which can also be machine-authenticated, has properties that are difficult to prove and enables a more in-depth query of the value document and authentication at a much higher level.
  • Checking the high security feature is complex and takes place, for example, in central banks.
  • This high security feature is a homogeneous mixture of two substances with different physical properties, such as the excitation wavelength for a luminescence emission or coercivity etc.
  • the object of the invention is to propose a generic document of value which, in addition to increased security against forgery, also includes a possibility of recognizing the value.
  • value recognition is understood to mean the evaluation of coded information for a specific group of users.
  • the coded information can represent, for example, the denomination, the currency, the series, the country of issue or other features of the banknote.
  • the document of value according to the invention has a first and a second feature substance, which are applied to or introduced into the document of value substrate in the form of mutually independent codes.
  • this combination creates a complex system of features that is very difficult for a counterfeiter to reproduce.
  • the feature system allows users from different user groups to carry out both an authenticity check and a value recognition on the document.
  • the feature substances used by the various user groups and their characteristic properties are completely separated from one another.
  • users of a user group can use a characteristic property of the first feature substance for authenticity checking and the coding formed by the first feature substance for value recognition.
  • Users of another group of users can use a characteristic property of the second feature substance for the authenticity check and use the coding formed by the second feature substance for value recognition.
  • Both groups of users can thus use the codes formed by the feature substances in order to be able to carry out a value recognition on the document in addition to the authenticity check without great additional effort.
  • the exact execution of the authenticity check and the value recognition is described in detail below.
  • These user groups can be central banks, commercial banks, any trading companies, such as local transport companies, department stores or vending machine operators, etc.
  • a third feature substance is introduced into the volume of the document of value substrate.
  • the third feature substance can in principle be introduced into the volume of the value document substrate in any distribution, but can also form a predetermined, ordered structure. According to a preferred embodiment of the invention, however, the third feature substance is distributed substantially uniformly in the volume of the value document substrate, so that sufficiently large volume elements of the same size each have essentially the same amount of the third feature substance contain.
  • the distribution can be regular, but can also take place in a predetermined regular pattern.
  • the third feature substance is preferably introduced into the substrate volume with a random distribution.
  • the third feature substance is preferably added to the paper pulp before the sheet is formed.
  • the marking substance can also be introduced into the near-surface volume area of a paper substrate. This is done, for example, according to one of the publications EP-A-0 659 935 and DE 101 20 818 described method, in which the particles of the marking substance are mixed with a gas stream or a liquid stream and introduced into a wet paper web.
  • One or more of the feature substances are preferably formed by a luminescent substance or a mixture of luminescent substances. It is also possible to use luminescent substances for all the feature substances used. Luminescent substances or mixtures which emit in the infrared spectral range and which in particular have a complex, difficult-to-adjust spectral emission characteristic are preferably used for the first and third feature substances. This emission characteristic can be used in particular to distinguish the luminescent substances from similar luminescent substances. However, it can also be used to generate a coding by the shape of the emission or / and excitation spectra of the luminescent substances, which is preferably used for the first feature substance.
  • the “infrared spectral range” is understood to mean the wavelength range from 750 nm and larger, preferably 800 nm and larger.
  • a luminescent substance is selected for the second feature substance, the luminescence of which is easily excited and can be detected using commercially available detectors.
  • At least one of the luminescent feature substances is preferably a luminescent substance based on a host lattice doped with rare earth elements.
  • a host lattice doped with rare earth elements Several or all of the luminescent substances can also be formed on the basis of such a doped host lattice.
  • These luminescent substances can e.g. are excited by the fact that radiation is radiated directly into the absorption bands of the rare earth ions.
  • absorbing host gratings or so-called “sensitizers” can also be used, which absorb the excitation radiation and transmit it to the rare earth ion, which then emits the luminescence.
  • the host lattice and / or the dopants can be different for the different feature substances in order to obtain different excitation and / or emission ranges.
  • the host lattice absorbs up to about 1.1 ⁇ m in the visible spectral range and optionally, in particular in the case of the first or third feature substance, in the near infrared range.
  • the excitation can then take place with high effectiveness via light sources such as halogen lamps, LEDs, lasers, flash lamps or xenon arc lamps, so that only small amounts of the luminescent substance are required. This makes it possible, for example, to apply the luminescent substances to the value document using customary printing methods. The small amount of substance also makes it difficult for potential counterfeiters to prove the substance used. If the host lattice absorbs in the near infrared up to about 1.1 ⁇ m, easily detectable emission lines of the rare earth ions can be suppressed, so that only the more difficult to detect emission remains at longer wavelengths.
  • luminescent substances are used which absorb even in the visible spectral range, preferably over the largest part of the visible spectral range, particularly preferably into the near infrared range. Even then, emissions in these more accessible spectral ranges are suppressed.
  • the host lattice can have, for example, a perovskite structure or a garnet structure and can be doped with a rare earth element emitting in the infrared spectral range, such as praseodymium, neodymium, dysprosium, holmium, erbium, thulium or ytterbium. Further possible configurations of the host lattice and the dopant are in the EP-B-0 052 624 or the EP-B-0 053 124 listed.
  • the coding can be in addition to the coding by the shape of the emission or.
  • Excitation spectra - represent any type of character or pattern, such as an alphanumeric string.
  • At least one of the codings preferably represents a bar code.
  • a one or two-dimensional pattern is referred to as a bar code, which consists of strips or areas with the feature material (s) ("bars") and strips or between the bars Areas without feature substances (“gaps”) exist.
  • the bar / gap sequence represents a binary sequence of numbers that represents any information, including encrypted information, about the value document.
  • the barcode can be invisible to the naked eye in particular and can only be detected in a special spectral range by its emission or absorption after irradiation with a suitable light source. Barcodes are particularly suitable for machine reading and, especially in conjunction with check digits, deliver an almost error-free reading result. For example, common formats such as code 2/5, code 2/5 interleaved, code 128 or code 39, but also special formats used only for the value documents according to the invention are suitable as barcodes. Also two-dimensional barcodes, which have a particularly strongly condensed recording and increased redundancy, making them less sensitive to Production tolerances, offers, can be used.
  • the codes formed by the first and second marking substances are independent of one another. This preferably means that they are not applied or introduced jointly onto or into the same areas of the value document. Rather, the two codes are preferably applied at different points in the value document and / or with different shapes.
  • the two codes can, but do not have to represent the same information content.
  • one of the encodings can have a higher information content and, for example, in addition to the information required for the value recognition, can contain additional information which enables further authentication of the document.
  • the type of coding can also differ, for example different coding types and / or different encryption algorithms can be used.
  • At least one of the codings extends over a predominant part of a surface of the value document, in particular over the substantially entire surface of the value document.
  • a coding or a part thereof can be provided with a certain offset from document to document. If the documents are produced in endless format, this can be achieved, for example, by using a printing roller, the scope of which is a non-integer multiple of the document size. A series of successive documents can then contain a coding of the same content or the same form, the individual documents being distinguishable from one another at the same time due to the different offset. The same result can be achieved in sheetfed printing if several printing plates with mutually offset codes or coding parts are used in accordance with the desired repetition rate.
  • the value document substrate is preferably a printed or unprinted cotton fiber paper, cotton / synthetic fiber paper, a cellulose-containing paper or a coated printed or unprinted plastic film.
  • a multi-layer laminated substrate can also be used.
  • the material of the substrate is not essential for the invention if it only allows the introduction or application of the required feature substances.
  • the documents of value according to the invention are preferably banknotes, shares, credit cards, identity or identity cards, passports of any kind, visas, vouchers etc.
  • the first and / or second feature substance is preferably printed on the value document substrate.
  • gravure, screen printing, high pressure, flexographic, inkjet, digital, transfer or offset printing processes can be used.
  • the printing inks used for this can be transparent or contain additional color pigments which must not impair the detection of the feature substances.
  • the luminescent substances they preferably have transparent regions in the excitation and considered emission region of the luminescent substances.
  • the first and / or second feature substance can preferably also be applied, in particular sprayed, to the moist paper web during the paper production in the form of the coding.
  • the respective feature substance is directed to the surface of the paper web in a suspension as a laminar jet with low jet pressure at a point in time when the paper web is still moist but has already sufficiently solidified. The low jet pressure prevents the fiber structure of the paper fleece from changing when the suspension is applied. The place of application on the finished paper is then not visible to the naked eye either in reflected light or in transmitted light. Further possibilities and details of applying the feature substance to a moist paper web are in the publication EP 1 253 241 A2 described.
  • the second feature substance is applied in the form of the coding to the moist paper web and the first feature substance is introduced into the volume of the paper substrate.
  • the authenticity of the value document is checked and a value recognition of the document is carried out by at least one characteristic property of the first and / or second feature substance for checking the authenticity of the value document and by the first and / or second feature substance formed coding is used to recognize the value of the value document.
  • the authenticity and the value recognition of the value document are preferably determined by different user groups on the basis of different feature substances. This means that if the user belongs to a first user group, the authenticity of the value document is determined on the basis of the first feature substance and the value recognition is carried out using the coding represented by the first feature substance. If the user belongs to a second user group, this stands for at least one characteristic property of the authenticity check second feature substance and for the value recognition the coding formed by the second feature substance.
  • the checking or processing by a user of the first user group can be carried out by using at least one characteristic property of the first and / or third feature substance to check the authenticity of the value document. For example, some of the users from the first user group can use the first feature substance for the authenticity check, another part the third feature substance.
  • the authenticity check or value recognition by a user of the first user group is preferably carried out by irradiating the first feature substance with radiation from its excitation area, determining the emission at at least one wavelength from the emission area of the first feature substance, and that Checking the authenticity and / or the value recognition is carried out on the basis of the measured emission.
  • the authenticity check or value recognition is carried out by a user of the second user group by irradiating the second feature substance with radiation from its excitation area, and the emission is determined from the emission area of the second feature substance at at least one wavelength and the authenticity check and / or the value recognition is carried out on the basis of the measured emission.
  • the first and / or second feature substance is advantageously irradiated with visible and / or infrared radiation and the emission of the irradiated feature substance is determined in the infrared spectral range.
  • the irradiation is preferably carried out with a light-emitting diode or laser diode.
  • the series or the respective up-grade e.g. a banknote issue.
  • the first and third feature substance are up-grade in the currency. After a certain transition period, it is conceivable to use only the third feature substance.
  • the described method has the advantage that in addition to the authenticity check, both user groups can carry out a value recognition on the document without great additional effort.
  • Another advantage is that the users of the first and second user groups use non-overlapping combinations of the feature substances or the coding formed by them for evaluation. Therefore, for example, an analysis of a device for verifying the authenticity of the second user group does not reveal any reference to the procedure for verifying the authenticity of the first user group, since this verifying device does not query any of the properties of the first or third feature substance.
  • FIG. 1 shows the banknote 10 in supervision and Fig. 2 a cross-section along the line II-II of Fig.1 ,
  • a first feature substance 16 and a second feature substance 14 are each printed in the form of a code 22 or 20 on the paper substrate 12 of the bank note 10.
  • a third feature substance 18 in the form of particles is evenly distributed in the volume of the paper substrate 12.
  • the particles can be added to the paper or fiber mass before the sheet formation or can be introduced into the fiber matrix only after the layer formation.
  • the third feature substance 18 is a luminescent substance based on a host lattice doped with rare earth metal, which emits after excitation in the range from 0.8 to 1.0 ⁇ m in the wavelength range around 1.5 ⁇ m.
  • the second feature substance 14 is printed in strip form on the front of the bank note 10.
  • the width of the individual strips 24 and / or the width of the respective spaces 26 represent a coding 20 in which information about the bank note, in particular the denomination and currency of the bank note 10, is stored in encrypted form.
  • the coding 20 extends essentially over the entire surface of the bank note 10.
  • the printing ink used for this is preferably transparent, so that the presence of the coding cannot be visually recognized.
  • the second feature substance 14 is also a luminescent substance, which is specifically selected so that its luminescence is easily excited and with commercially available detectors can be detected in the near infrared.
  • the first feature substance 16 is also printed on the banknote substrate 12 in the form of a coding 22, in the exemplary embodiment in the form of a barcode.
  • the denomination and currency of the banknote 10 are stored in coded form in the barcode 22.
  • the printing ink used here can also be transparent. Alternatively, it contains any color pigments that do not interfere with the luminescence test of the feature substance.
  • the first feature substance 16 is formed in the exemplary embodiment by a mixture of different luminescent substances which emits radiation with a complex and difficult to reproduce spectral distribution after excitation. The spectral distribution itself can be evaluated again as coding.
  • the authenticity check and the value recognition can now be carried out by two different user groups using different combinations of the three feature substances 14, 16 and 18 or the codes 20 and 22.
  • the banknote 10 of the exemplary embodiment is designed for a first user group with high security requirements and a second user group with comparatively low security requirements.
  • the second user group can be, for example, simple machines accepting banknotes in parking lots or vending machines. Inexpensive detection devices for authenticity testing and value recognition are particularly useful for this application.
  • a user of the second user group checks the authenticity of a bank note 10 by irradiating the bank note with light from the excitation area of the second feature substance 14 and detecting an impressive luminescence signal. If a correct luminescence signal is received, the banknote is rated as genuine by the user. The presence of the correct luminescence signal is sufficient, a spatially resolved evaluation or an analysis of the emission spectrum is not necessary for the authenticity check. Because of the choice of the luminescent substance 14, this detection can be carried out very easily and with commercially available, inexpensive detectors. If the banknote is recognized as genuine, its value can be found in bar code 20 if the coding scheme is known. The authenticity check and the value recognition can of course also be carried out in one step.
  • the first user group with its higher security requirements can include, for example, banks in which the authenticity of the banknotes is checked using high-quality and complex detectors.
  • the first feature substance 16 with its complex spectral emission is used for this authenticity check for this user group.
  • the authenticity check is preferably based on the determination of the specific luminescence emission.
  • the third feature substance 18 with its difficult to detect infrared emission at 1.5 ⁇ m can be used as an authenticity indicator
  • the value recognition of the banknote is carried out by a user of the first user group using the barcode 22 formed by the first feature substance.
  • the value recognition can be carried out by a user of the first user group by a more in-depth analysis of the emission spectrum, with half-value widths and / or luminescence peak distances and / or decay times etc. being assessed.
  • the information content of the bar code can be determined with a complex infrared detector, for example by scanning a line along the line II-II of the Fig.1 , be read out.
  • the second user group and the first user group if they have access to the data of the second feature substances, can simultaneously use the coded representation of the information contained in the bar code 20 as an additional authenticity check on the bank note 10.
  • the coded representation of the information contained in the bar code 20 can be used as an additional authenticity check on the bank note 10.
  • the bar code 20 can contain the same information as the bar code 22, but in some embodiments it contains additional information in addition to the information required for the value recognition, which enables the authenticity of the bank note 10 to be checked further.
  • the two user groups use non-overlapping feature substance systems for authenticity checking and value recognition. This results in an additional significant advantage that an analysis of a comparatively easily accessible device for verifying the authenticity of the second user group does not give any indication of the procedure and the basics of the authenticity check or the value recognition of the first user group.
  • Fig. 3 shows a further embodiment of the invention, in which the second feature substance 14 was already sprayed onto the still moist paper web in the form of bar code 20 during paper production. In the finished banknote, the coding 20 then lies below the top glue layer of the paper substrate 12.
  • the first feature substance 16 can be sprayed onto the still moist paper web in the form of the bar code 22 during paper production.
  • Fig. 4 shows an embodiment in which both codes 20 and 22 are arranged under the glue layer of the paper substrate 12.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Credit Cards Or The Like (AREA)
  • Road Signs Or Road Markings (AREA)
  • Pens And Brushes (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Steroid Compounds (AREA)
  • Paper (AREA)
  • Collating Specific Patterns (AREA)
EP04765834.9A 2003-10-08 2004-10-05 Wertdokument mit verschiedenen merkmalstoffen Active EP1673231B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04765834T PL1673231T5 (pl) 2003-10-08 2004-10-05 Dokument wartościowy zaopatrzony w różne substancje znakujące

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10346632A DE10346632A1 (de) 2003-10-08 2003-10-08 Wertdokument
PCT/EP2004/011129 WO2005035261A1 (de) 2003-10-08 2004-10-05 Wertdokument mit verschiedenen merkmalstoffen

Publications (3)

Publication Number Publication Date
EP1673231A1 EP1673231A1 (de) 2006-06-28
EP1673231B1 EP1673231B1 (de) 2008-05-07
EP1673231B2 true EP1673231B2 (de) 2020-01-15

Family

ID=34428220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765834.9A Active EP1673231B2 (de) 2003-10-08 2004-10-05 Wertdokument mit verschiedenen merkmalstoffen

Country Status (9)

Country Link
US (1) US7819434B2 (zh)
EP (1) EP1673231B2 (zh)
CN (1) CN1867460B (zh)
AT (1) ATE394242T1 (zh)
BR (1) BRPI0415244B1 (zh)
DE (2) DE10346632A1 (zh)
ES (1) ES2302024T5 (zh)
PL (1) PL1673231T5 (zh)
WO (1) WO2005035261A1 (zh)

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FR2901286B1 (fr) * 2006-05-19 2011-08-19 Arjowiggins Procede de fabrication d'un materiau en feuille comprenant au moins une couche fibreuse et des elements de securite et/ou decoratifs
DE102008050768C5 (de) * 2008-10-09 2017-11-02 Bundesdruckerei Gmbh Sicherheitsmerkmal auf Basis Lumineszenz emittierender Stoffe, Wert- und Sicherheitsdokument mit einem solchen Sicherheitsmerkmal, ein Verfahren sowie eine Vorrichtung zur Verifikation eines solchen Sicherheitsmerkmals
CN101930141B (zh) * 2009-06-25 2013-04-10 中国人民银行印制科学技术研究所 液晶机读防伪元件
UY32945A (es) * 2009-10-28 2011-05-31 Sicpa Holding Sa Validador de billetes
RU2573754C2 (ru) * 2011-08-25 2016-01-27 Глори Лтд. Устройство распознавания бумажного листа, световод и корпус световода для использования в спектрометрическом измерении бумажного листа
US20130048874A1 (en) * 2011-08-31 2013-02-28 Honeywell International Inc. Articles with confounded emission characteristics and methods and apparatus for their authentication
EP2718911B1 (de) 2011-09-06 2016-12-07 Bundesdruckerei GmbH Verfahren zur verifikation eines sicherheitsdokuments mit einem sicherheitsmerkmal in form eines fluoreszierenden druckelementes sowie verwendung einer entsprechenden anordnung
US8759794B2 (en) * 2012-07-20 2014-06-24 Honeywell International Inc. Articles, methods of validating the same, and validation systems employing decay constant modulation
CN103895379B (zh) * 2012-12-28 2016-04-27 中国人民银行印制科学技术研究所 防伪图案的制造方法及具有防伪图案的产品
DE102020131382A1 (de) 2020-11-26 2022-06-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Methode zur Kennzeichnung von Produkten mit optischem Sicherheitsmerkmal mit zeitlicher Dimension
FR3139029A1 (fr) 2022-08-25 2024-03-01 Oberthur Fiduciaire Sas Procédé d’authentification ou d’identification d’un document de sécurité

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ES2302024T3 (es) 2008-07-01
PL1673231T5 (pl) 2020-10-05
BRPI0415244A (pt) 2006-12-12
CN1867460B (zh) 2010-05-05
CN1867460A (zh) 2006-11-22
ATE394242T1 (de) 2008-05-15
WO2005035261A1 (de) 2005-04-21
US7819434B2 (en) 2010-10-26
PL1673231T3 (pl) 2008-10-31
EP1673231A1 (de) 2006-06-28
ES2302024T5 (es) 2020-06-25
DE502004007081D1 (de) 2008-06-19
EP1673231B1 (de) 2008-05-07
US20070210574A1 (en) 2007-09-13
DE10346632A1 (de) 2005-05-19

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