EP2147799A1 - Securing of a printed image using a laser beam - Google Patents
Securing of a printed image using a laser beam Download PDFInfo
- Publication number
- EP2147799A1 EP2147799A1 EP08305411A EP08305411A EP2147799A1 EP 2147799 A1 EP2147799 A1 EP 2147799A1 EP 08305411 A EP08305411 A EP 08305411A EP 08305411 A EP08305411 A EP 08305411A EP 2147799 A1 EP2147799 A1 EP 2147799A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lens
- laser beam
- pixels
- shape
- image
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/465—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using masks, e.g. light-switching masks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
Definitions
- the present invention relates to securing a printed image by means of a laser beam.
- the invention lies in the field of identification documents chip or without chip, such as driving licenses, identity cards, membership cards, access badges, passports, bank cards, electronic purses, multi-application cards and other valuable papers. Because of the value and importance associated with each of these documents, they are often subject to unauthorized copies, alterations, modifications, and counterfeits.
- the invention aims more particularly at securing personalization information registered on any type of medium, so as to avoid any subsequent fraudulent modification of this information.
- a customizable support for example an identity card, comprising a body 2 provided, on a top face 3, personalization information 4, 6, 7 official relating to the card holder.
- This personalization information is reported via a graphical personalization means, for example YAG laser type.
- the card 1 comprises a card body 2, made of an opaque plastic material, for example of the polycarbonate, PET and / or ABS or PVC type.
- a transparent protective layer 5, also called “overlay" in the jargon of the cards, is advantageously fixed on at least one face of the card body.
- the card body 2 is designed to be provided on its upper face 3 with personalization information 4.
- the personalization information 4 shown on the card body 2 comprises, with reference to the figure 2 , the photographic representation 6 of the holder of the card and alphanumeric characters 7 relating to the identity of the holder.
- the personalization data 7 and the photograph 6 are, for example, written on the surface 3 of the card body by means of a laser beam, by burning the surface of the card body.
- the local discoloration of the resulting surface depends on the available energy, the inscription time as well as the material of the card body used.
- the customization may be made directly in the transparent protective layer 5.
- the material used for the transparent protective layer 5 is a material doped with carbon particles which blacken under the action of a laser beam.
- micro perforations there are other techniques of creating security elements by making micro perforations in the body of the support, said micro-perforations reproducing the personalization information, such as the photograph of the holder of the medium for example, so as to authenticate the photo of the owner.
- a laser technology is used to create the micro-perforations through the thickness of the support body, the perforations being arranged to form an image that becomes clearly visible to the naked eye when the document is illuminated, thus allowing easy verification.
- This technology requires an additional step of reproducing identically, and therefore very accurately, personalization information by laser perforation. Such a solution is therefore long and complex to implement, and therefore relatively expensive.
- patent application EP1 747 897 describes a method for securing an image by converting the data of the image to be secured into character data. The characters are then printed, respecting the dark and light areas and maintaining the shape of the image, by means of a laser, on the surface of the medium to be printed. This solution requires means of image processing and complicated calculations and consumers of time, and therefore expensive.
- the technical problem of the present invention consists in proposing a simple and inexpensive alternative to existing solutions, to effectively secure a printed image by means of a laser beam, which would make it possible to overcome the use of complex calculations, expensive, and time consuming.
- the security method comprises a step consisting in arranging a lens on the path of the laser beam, upstream or downstream of a focusing device, in such a way that altering the shape of the laser beam and imparting the resulting printed pixels with a specific shape.
- the printed pixels are no longer of conventional round or oval shape, but they have a specific shape, related to the structure of the lens used to deform the laser beam. It is therefore impossible to reproduce the shape of the pixels without having the corresponding specific lens. Therefore, any addition or modification of an image printed and secured in this way is very easy and quick to detect, by means of a simple magnifying glass for example. Indeed, in this case all the added pixels have a shape different from the original pixels.
- the invention also relates to the use of a lens for securing a printed image by means of a laser beam, said lens being placed upstream or downstream of a beam focusing device, so as to deform the beam and imparting the resulting printed pixels with a particular shape.
- the figure 3 illustrates a customizable support 1 ', provided on one side with information printed in a secure manner.
- the medium is represented in card format, but it is not limited to this format and can be in any other form.
- the invention applies to any printable medium by means of a laser beam, it can therefore be a card-size medium, as well as a passport-type booklet medium or any other single-sheet type medium. paper, cardboard, plastic etc.
- the support 1 'of the figure 3 includes the photographic representation 6 'of the card holder, and alphanumeric characters 7' relating to the identity of the holder. All these data relating to the identity of the holder of the support are printed, in a conventional manner, by means of a laser beam.
- the photographic representation 6 'shown is simply a detail (in this case the eye) enlarged photo holder. A detail of this even larger eye is represented on the figure 4 .
- This detail makes it possible to visualize the particular shape of the printed pixels. Conventionally, when an image is printed by means of a laser beam, the pixels of the image are round or oval in shape.
- the shape-specific pixels 61-64 as illustrated on the figure 4 are achieved by using a specific diffractive lens in the path of the laser beam, the structure of which makes it possible to modify the shape of the laser beam and to give a specific shape to the resulting printed pixels. Modifying the shape of the printed pixels makes it possible to secure the image, since any attempt to fraudulently modify the image is immediately visible. Indeed, without the use of the specific lens, it is impossible to create pixels of the same shape.
- pixels 61-64 are in the form of a square, each corner is truncated, and comprising a notch on one side.
- this form is only an illustrative example.
- Pixels can take any shape more or less complex and difficult to reproduce easily. Thus, they may be in the form of a logo, a drawing of any shape, or a sequence of alphanumeric characters, or a map of a country, with an anomaly to further increase the with denser areas or points representing cities or rivers for example etc ...
- the shape of the pixels depends in fact on the structure of the lens used to deform the laser beam.
- the figure 5 illustrates, very schematically, the device used to print a secure image according to the invention.
- a laser cavity 51 is used to create a laser beam 52, of cylindrical shape 60.
- a diffractive lens 55 of specific structure. This lens makes it possible to modify the shape of the laser beam 52 which, after focusing 57, makes it possible to print pixels of specific shape 61 on a printable medium 10.
- the lens 55 may be arranged upstream or downstream of the focusing device 56. In a preferred embodiment, it is placed upstream of the focusing device because the lens has a natural tendency to cause diffraction of the laser beam, that it is necessary to concentrate then to be able to obtain a pixel.
- the laser system used has a short focal length and emits in a range of short wavelengths.
- This may for example be an excimer laser, emitting in the ultraviolet, typically between 200 and 400 nm, for example around 355 nm.
- This type of laser makes it possible to print an image of better quality, with less interference, than a type YAG laser, monomode for example.
- the use of a Yag laser does not preclude also being able to obtain good results with a longer wavelength.
- the lens in rotation, in the context of a positioning of the latter upstream of the focusing device, during of laser printing.
- This rotation drive can be achieved by means of a slave motor for example, and controlled by the same control unit for controlling the printing.
- Rotating the lens makes it possible to print pixels of the same shape but oriented differently relative to each other. The result of such an impression is clearly visible on the figure 4 . Indeed, in this figure, the pixels are rotated at different angles. In the example of the figure 4 , there are thus four different positions 61-64 pixels. Of course this is just a simple example where the pixels are rotated at an angle of 90 ° to each other. This example is in no way limiting and the pixels can be rotated relative to each other by an angle between 0 and 360 °. These angles depend essentially on the speed of rotation of the lens.
- the rotational speed of the lens is thus predefined so that the pixels are printed with a predefined angle.
- the code thus introduced into the image can then be decrypted by means of a reading device comprising suitable image processing means.
- the quality of the image obtained will be somewhat reduced, because of the diffraction of the beam on a part of the lens and the need to focus the beam.
- customization element on the support The size, shape and orientation of each pixel being defined by the part of the lens used in the area of the customization defined, it is then difficult to rotate the latter to generate a variable code.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Credit Cards Or The Like (AREA)
Abstract
Description
La présente invention concerne la sécurisation d'une image imprimée au moyen d'un faisceau laser.The present invention relates to securing a printed image by means of a laser beam.
L'invention se situe dans le domaine des documents d'identification à puce ou sans puce, tel que des permis de conduire, des cartes d'identité, des cartes de membre, des badges d'accès, des passeports, des cartes bancaires, des porte-monnaie électroniques, des cartes multi-applications et autres papiers de valeurs. Du fait de la valeur et de l'importance associée à chacun de ces documents, ils font souvent l'objet de copies non autorisées, d'altérations, de modifications, et contrefaçons.The invention lies in the field of identification documents chip or without chip, such as driving licenses, identity cards, membership cards, access badges, passports, bank cards, electronic purses, multi-application cards and other valuable papers. Because of the value and importance associated with each of these documents, they are often subject to unauthorized copies, alterations, modifications, and counterfeits.
L'invention vise plus particulièrement à sécuriser des informations de personnalisation inscrites sur tout type de support, de manière à éviter toute modification frauduleuse ultérieure de ces informations.The invention aims more particularly at securing personalization information registered on any type of medium, so as to avoid any subsequent fraudulent modification of this information.
On a représenté, sur les
Ces supports personnalisés sont de plus en plus utilisés, en tant que carte d'identité ou en tant que passeport par exemple. Du fait de leur utilisation intensive et du caractère sensible attaché aux contrôles d'identité, ils doivent être conçus de manière à être protégés contre toute tentative de violation ou de falsification avec un degré de sécurité aussi élevé que possible.These personalized media are being used more and more, as an identity card or as a passport for example. Because of their intensive use and the sensitive nature of identity checks, they must be designed so as to be protected against any attempt at tampering or tampering with as high a degree of security as possible.
Pour répondre à cette exigence, il est connu d'ajouter, sur les informations de personnalisation, des lignes courbes, encore appelées « guilloches ». Cependant, même si les guilloches forment des schémas plus ou moins complexes, elles restent prédictibles et toujours transposables d'un support à un autre. Il est donc possible, avec un motif de guilloches classiques d'analyser le réseau de guilloches d'un support, et ainsi de préparer une falsification des informations de personnalisations qui évite d'imprimer sur les guilloches en question.To meet this requirement, it is known to add, on the personalization information, curved lines, also called "guilloches". However, even if the guilloches form more or less complex diagrams, they remain predictable and always transposable from one medium to another. It is therefore possible, with a pattern of conventional guilloches to analyze the network of guilloches of a support, and thus prepare a falsification of customization information that avoids printing on the guilloches in question.
Il existe d'autres techniques consistant à créer des éléments sécuritaires en faisant des micros perforations dans le corps du support, lesdites micro-perforations reproduisant les informations de personnalisation, telles que la photographie du titulaire du support par exemple, de manière à authentifier la photo du titulaire. Pour cela, une technologie laser est utilisée pour créer les micro-perforations à travers l'épaisseur du corps du support, les perforations étant arrangées pour former une image qui devient clairement visible à l'oeil nu lorsque le document est éclairé, permettant ainsi une vérification facile. Cette technologie nécessite cependant une étape supplémentaire de reproduction à l'identique, et donc très précise, des informations de personnalisation par perforation laser. Une telle solution est donc longue et complexe à mettre en oeuvre, et par conséquent relativement coûteuse.There are other techniques of creating security elements by making micro perforations in the body of the support, said micro-perforations reproducing the personalization information, such as the photograph of the holder of the medium for example, so as to authenticate the photo of the owner. For this, a laser technology is used to create the micro-perforations through the thickness of the support body, the perforations being arranged to form an image that becomes clearly visible to the naked eye when the document is illuminated, thus allowing easy verification. This technology, however, requires an additional step of reproducing identically, and therefore very accurately, personalization information by laser perforation. Such a solution is therefore long and complex to implement, and therefore relatively expensive.
Enfin, la demande de brevet
Aussi, le problème technique objet de la présente invention consiste à proposer une alternative simple et peu coûteuse aux solutions existantes, pour sécuriser efficacement une image imprimée au moyen d'un faisceau laser, qui permettrait de s'affranchir de l'utilisation de moyens de calculs complexes, onéreux, et consommateurs de temps.Also, the technical problem of the present invention consists in proposing a simple and inexpensive alternative to existing solutions, to effectively secure a printed image by means of a laser beam, which would make it possible to overcome the use of complex calculations, expensive, and time consuming.
La solution au problème technique posé est obtenue, selon la présente invention par le fait que le procédé de sécurisation comprend une étape consistant à disposer une lentille sur le chemin du faisceau laser, en amont ou en aval d'un dispositif de focalisation, de manière à modifier la forme du faisceau laser et à conférer aux pixels imprimés résultants une forme spécifique.The solution to the technical problem raised is obtained, according to the present invention, by the fact that the security method comprises a step consisting in arranging a lens on the path of the laser beam, upstream or downstream of a focusing device, in such a way that altering the shape of the laser beam and imparting the resulting printed pixels with a specific shape.
Ainsi, les pixels imprimés ne sont plus de forme classique ronde ou ovale, mais ils ont une forme spécifique, liée à la structure de la lentille utilisée pour déformer le faisceau laser. Il est donc impossible de reproduire la forme des pixels sans avoir la lentille spécifique correspondante. Par conséquent, tout ajout ou modification d'une image imprimée et sécurisée de cette manière est très facile et rapide à détecter, au moyen d'une simple loupe par exemple. En effet, dans ce cas tous les pixels rajoutés ont une forme différente des pixels originaux.Thus, the printed pixels are no longer of conventional round or oval shape, but they have a specific shape, related to the structure of the lens used to deform the laser beam. It is therefore impossible to reproduce the shape of the pixels without having the corresponding specific lens. Therefore, any addition or modification of an image printed and secured in this way is very easy and quick to detect, by means of a simple magnifying glass for example. Indeed, in this case all the added pixels have a shape different from the original pixels.
L'invention porte également sur l'utilisation d'une lentille pour sécuriser une image imprimée au moyen d'un faisceau laser, ladite lentille étant placée en amont ou en aval d'un dispositif de focalisation du faisceau, de manière à déformer le faisceau et à conférer aux pixels imprimés résultants une forme particulière.The invention also relates to the use of a lens for securing a printed image by means of a laser beam, said lens being placed upstream or downstream of a beam focusing device, so as to deform the beam and imparting the resulting printed pixels with a particular shape.
Grâce à l'utilisation d'une telle lentille, l'impression de l'image est très rapide puisqu'elle ne nécessite l'utilisation d'aucun moyen de calcul.Through the use of such a lens, the printing of the image is very fast since it does not require the use of any means of calculation.
D'autres particularités et avantages de l'invention apparaîtront à la lecture de la description suivante faite à titre d'exemple illustratif et non limitatif, en référence aux figures annexées qui représentent :
- la
figure 1 , déjà décrite, un schéma en coupe d'un support personnalisable, de type carte, comprenant des informations de personnalisation, - la
figure 2 , déjà décrite, un schéma d'une vue de dessus du support personnalisable de lafigure 1 , - la
figure 3 , un schéma d'une vue de dessus d'un support personnalisable comprenant des informations de personnalisation sécurisées selon la présente invention, - la
figure 4 , une vue agrandie d'un détail de l'image imprimée et sécurisée du support de lafigure 3 , - la
figure 5 , un schéma du dispositif utilisé pour l'impression d'une telle image sécurisée.
- the
figure 1 , already described, a sectional diagram of a customizable support, of card type, including personalization information, - the
figure 2 , already described, a diagram of a top view of the customizable support of thefigure 1 , - the
figure 3 a diagram of a top view of a customizable medium including secure personalization information according to the present invention, - the
figure 4 , an enlarged view of a detail of the printed and secured image of the support of thefigure 3 , - the
figure 5 , a diagram of the device used for printing such a secure image.
La
Le support 1' de la
Dans l'exemple de la
La
La lentille 55 peut être disposée en amont, ou en aval, du dispositif de focalisation 56. Dans un mode préféré de réalisation, elle est placée an amont du dispositif de focalisation car la lentille a une tendance naturelle à provoquer une diffraction du faisceau laser, qu'il faut ensuite concentrer pour pouvoir obtenir un pixel.The
De préférence, le système laser utilisé a une distance focale courte et émet dans une gamme de courtes longueurs d'onde. Ce peut par exemple être un laser excimer, émettant dans l'ultraviolet, typiquement entre 200 et 400nm, par exemple autour de 355nm. Ce type de laser permet d'imprimer une image de meilleure qualité, avec moins d'interférences, qu'un laser de type YAG, monomode par exemple. Cependant, l'utilisation d'un laser Yag n'empêche pas de pouvoir obtenir également de bons résultats avec une longueur d'onde plus élevée.Preferably, the laser system used has a short focal length and emits in a range of short wavelengths. This may for example be an excimer laser, emitting in the ultraviolet, typically between 200 and 400 nm, for example around 355 nm. This type of laser makes it possible to print an image of better quality, with less interference, than a type YAG laser, monomode for example. However, the use of a Yag laser does not preclude also being able to obtain good results with a longer wavelength.
Selon une variante de réalisation, il est en outre possible d'augmenter le degré de sécurisation de l'image imprimée en entraînant la lentille en rotation, dans le cadre d'un positionnement de cette-dernière en amont du dispositif de focalisation, au cours de l'impression laser. Cet entraînement en rotation peut être réalisé au moyen d'un moteur asservi par exemple, et commandé par la même unité de pilotage servant à commander l'impression. Le fait de faire tourner la lentille permet d'imprimer des pixels de même forme mais orientés différemment les uns par rapport aux autres. Le résultat d'une telle impression est bien visible sur la
La vitesse de rotation de la lentille est donc prédéfinie de façon à ce que les pixels soient imprimés avec un angle prédéfini.The rotational speed of the lens is thus predefined so that the pixels are printed with a predefined angle.
Grâce à cette variante, il est donc possible d'introduire un code à l'intérieur de l'image et par conséquent, de rendre encore beaucoup plus difficile toute falsification ou modification frauduleuse ultérieure.With this variant, it is therefore possible to introduce a code inside the image and therefore, to make it even more difficult to falsify or subsequently fraudulent modification.
Pour augmenter encore le degré de sécurité de l'image imprimée, il est possible d'entraîner la lentille en rotation, au cours de l'impression laser, avec une vitesse prédéterminée et variable au cours du temps.To further increase the degree of security of the printed image, it is possible to drive the rotating lens, during laser printing, with a predetermined speed and variable over time.
Le code ainsi introduit dans l'image peut ensuite être décrypté au moyen d'un dispositif de lecture comprenant des moyens de traitement d'image adaptés.The code thus introduced into the image can then be decrypted by means of a reading device comprising suitable image processing means.
Dans le cadre d'un positionnement de la lentille diffractive en aval du dispositif de focalisation, la qualité de l'image obtenue sera quelque peu réduite, du fait de la diffraction du faisceau sur une partie de la lentille et la nécessité de focaliser l'élément de personnalisation sur le support. La taille, la forme et l'orientation de chaque pixel étant définie par la partie de la lentille utilisée dans la zone de la personnalisation définie, il est alors difficile de mettre cette dernière en rotation pour générer un code variable.In the context of a positioning of the diffractive lens downstream of the focusing device, the quality of the image obtained will be somewhat reduced, because of the diffraction of the beam on a part of the lens and the need to focus the beam. customization element on the support. The size, shape and orientation of each pixel being defined by the part of the lens used in the area of the customization defined, it is then difficult to rotate the latter to generate a variable code.
Claims (5)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08305411A EP2147799A1 (en) | 2008-07-21 | 2008-07-21 | Securing of a printed image using a laser beam |
PCT/EP2009/059323 WO2010010073A1 (en) | 2008-07-21 | 2009-07-20 | Securing a printed image using a laser beam |
EP09800040.9A EP2303589B1 (en) | 2008-07-21 | 2009-07-20 | Securing of a printed image using a laser beam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08305411A EP2147799A1 (en) | 2008-07-21 | 2008-07-21 | Securing of a printed image using a laser beam |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2147799A1 true EP2147799A1 (en) | 2010-01-27 |
Family
ID=40091850
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08305411A Withdrawn EP2147799A1 (en) | 2008-07-21 | 2008-07-21 | Securing of a printed image using a laser beam |
EP09800040.9A Active EP2303589B1 (en) | 2008-07-21 | 2009-07-20 | Securing of a printed image using a laser beam |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09800040.9A Active EP2303589B1 (en) | 2008-07-21 | 2009-07-20 | Securing of a printed image using a laser beam |
Country Status (2)
Country | Link |
---|---|
EP (2) | EP2147799A1 (en) |
WO (1) | WO2010010073A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015208297A1 (en) | 2015-05-05 | 2016-11-10 | Bundesdruckerei Gmbh | Personalization device and method for personalizing a document |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63303746A (en) * | 1987-06-03 | 1988-12-12 | Nikon Corp | Optical marking device |
US5767483A (en) * | 1993-08-19 | 1998-06-16 | United Distillers Plc | Method of laser marking a body of material having a thermal conductivity approximately equal to that of glass |
US20030063390A1 (en) * | 2001-08-03 | 2003-04-03 | Daniel Brown | Multi-aperture beam integrator/method producing a continuously variable complex image |
EP1319520A2 (en) * | 2001-12-14 | 2003-06-18 | Xerox Corporation | Method and apparatus for embedding encrypted images of signatures and other data on checks |
US20040263986A1 (en) * | 2002-09-30 | 2004-12-30 | Brown Daniel M. | Method and device for combining and shaping beams |
EP1747897A1 (en) | 2005-07-28 | 2007-01-31 | Mühlbauer AG | Process for personalising a picture on a plastic substrate and a personalised security document |
EP1876028A1 (en) * | 2006-07-07 | 2008-01-09 | Setec Oy | Method for producing a data carrier and data carrier produced therefrom |
-
2008
- 2008-07-21 EP EP08305411A patent/EP2147799A1/en not_active Withdrawn
-
2009
- 2009-07-20 EP EP09800040.9A patent/EP2303589B1/en active Active
- 2009-07-20 WO PCT/EP2009/059323 patent/WO2010010073A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63303746A (en) * | 1987-06-03 | 1988-12-12 | Nikon Corp | Optical marking device |
US5767483A (en) * | 1993-08-19 | 1998-06-16 | United Distillers Plc | Method of laser marking a body of material having a thermal conductivity approximately equal to that of glass |
US20030063390A1 (en) * | 2001-08-03 | 2003-04-03 | Daniel Brown | Multi-aperture beam integrator/method producing a continuously variable complex image |
EP1319520A2 (en) * | 2001-12-14 | 2003-06-18 | Xerox Corporation | Method and apparatus for embedding encrypted images of signatures and other data on checks |
US20040263986A1 (en) * | 2002-09-30 | 2004-12-30 | Brown Daniel M. | Method and device for combining and shaping beams |
EP1747897A1 (en) | 2005-07-28 | 2007-01-31 | Mühlbauer AG | Process for personalising a picture on a plastic substrate and a personalised security document |
EP1876028A1 (en) * | 2006-07-07 | 2008-01-09 | Setec Oy | Method for producing a data carrier and data carrier produced therefrom |
Also Published As
Publication number | Publication date |
---|---|
EP2303589B1 (en) | 2014-07-02 |
WO2010010073A1 (en) | 2010-01-28 |
EP2303589A1 (en) | 2011-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2403719B2 (en) | Security element for valuable document | |
EP2655740A1 (en) | Element for security document comprising an optical structure | |
CH633900A5 (en) | PROCESS FOR VERIFYING THE AUTHENTICITY OF A SHEET CONSTITUTING A BANKNOTE OR OTHER VALUE DOCUMENT. | |
EP1935664A1 (en) | Secure identification document and method of securing such a document | |
FR2918311A1 (en) | SECURITY DOCUMENT IN FORM OF BOOKLET, WITH AN ADDITIONAL PAGE REVELATION OF A HIDDEN INFORMATION | |
WO2007125266A1 (en) | Optical security marking component, method of manufacturing such a component, system comprising such a component, and reader for checking such a component | |
FR3002182A1 (en) | SECURITY DEVICE WITH DISSIMULATED IMAGES | |
FR3022183A1 (en) | PROCESS FOR MANUFACTURING A LASER-MARKED, SAFETY MARKING MULTILAYER DATA MEDIUM | |
EP1926605B1 (en) | Personalized support such as identification card comprising anti-counterfeit means | |
FR3072053B1 (en) | OPTICAL SECURITY COMPONENT WITH REFLECTIVE EFFECT, MANUFACTURE OF SUCH A COMPONENT AND SECURE DOCUMENT EQUIPPED WITH SUCH A COMPONENT | |
FR3072325B1 (en) | OPTICAL SECURITY COMPONENT VISIBLE IN REFLECTION, MANUFACTURE OF SUCH A COMPONENT AND SECURE DOCUMENT PROVIDED WITH SUCH A COMPONENT | |
WO2015181289A1 (en) | Use of an optical security component for customising a security document and production of such a component | |
EP2110260A1 (en) | Customisable support comprising anti-forgery means and method of manufacturing such a support | |
EP2303589B1 (en) | Securing of a printed image using a laser beam | |
FR3068293A1 (en) | SECURITY DOCUMENT COMPRISING AN OPTICAL SECURITY ELEMENT | |
EP3899605B1 (en) | Device for displaying one or more transitory images from three-dimensional microstructures and uses of such a device | |
EP2445726B1 (en) | Security document with differentiated tactile areas, and method for manufacturing same | |
EP2407314A1 (en) | Method for producing a pattern on a substrate using security ink | |
BE1008674A5 (en) | Information with optical support brands and use of support. | |
FR3071323A1 (en) | OPTICALLY VARIABLE THREE-DIMENSIONAL MOIRE DEVICE | |
EP2185367B1 (en) | Secure document and method for making a document secure | |
FR3069482B1 (en) | LASER ENGRAVING METHOD OF MULTIPLE IMAGES IN A SAFETY DOCUMENT | |
JP5928680B2 (en) | Anti-counterfeit printed matter and method for producing the same | |
FR3105757A1 (en) | Security document with a pattern of laser perforations | |
WO2020119986A1 (en) | Security document incorporating a control pattern |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
AKY | No designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20100728 |