EP3030427A1 - Procédé d'application d'une image sur un support de données (11) au moyen d'un appareil laser - Google Patents

Procédé d'application d'une image sur un support de données (11) au moyen d'un appareil laser

Info

Publication number
EP3030427A1
EP3030427A1 EP14744303.0A EP14744303A EP3030427A1 EP 3030427 A1 EP3030427 A1 EP 3030427A1 EP 14744303 A EP14744303 A EP 14744303A EP 3030427 A1 EP3030427 A1 EP 3030427A1
Authority
EP
European Patent Office
Prior art keywords
laser
image
pixels
security feature
lines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP14744303.0A
Other languages
German (de)
English (en)
Inventor
Roland Gutmann
Olga KOSIOR
Andreas Wolf
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.)
Bundesdruckerei GmbH
Original Assignee
Bundesdruckerei GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bundesdruckerei GmbH filed Critical Bundesdruckerei GmbH
Publication of EP3030427A1 publication Critical patent/EP3030427A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/337—Guilloche patterns
    • 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
    • B42D25/23—Identity cards
    • 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
    • B42D25/309—Photographs
    • 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
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation

Definitions

  • the invention relates to a method for applying pixels by means of a laser device to a data carrier, in which the image to be applied consists of a plurality of pixels, to which gray or brightness values or color values are assigned.
  • EP 2 100 747 A1 discloses a method for applying an image to a data carrier, such as a data, value or identity card.
  • a data carrier such as a data, value or identity card.
  • additional or microinformation is embedded which consists of a plurality of pixels corresponding to the resolving power of the output device. It is provided that the gray or brightness values of the pixels forming the additional information
  • US 2004/0056007 A discloses a method for producing laser-induced images, which consist of incomplete data that are completed during production.
  • EP 0 384 274 A1 discloses a method for producing a multilayer ID card in which non-transmissive films are printed by means of a digital printing method with previously digitally stored cardholder-specific information.
  • US 2008/0284157 A1 discloses a forgery-proof identification document which comprises a transparent substrate made of a polymer material with grating lenses arranged thereon. On one side an ink jet printable layer is applied. This includes laser inscribable additives. A biometric image and interlaced images are lasered into the inkjet printable layer.
  • manipulations are carried out by partial overwriting or over-lasering of the existing picture elements of the image by the holder of the data carrier in order to change the appearance of the owner.
  • additional information which consist of gray or brightness values of the pixels, such manipulation should be prevented.
  • the invention has for its object to provide a method for applying an image by means of a laser device on a disk, in which a simple detection of manipulation is possible.
  • This object is achieved by a method for applying an image by means of a laser device to a data carrier, wherein in the image to be applied, which consists of a plurality of pixels produced with a laser device, at least one zone is formed which is free of these pixels and in which additional information with at least one security feature is introduced into the at least one zone, which has graphical or geometric laser structures that deviate from the pixels for the image to be applied.
  • the security feature comprises graphic or geometric laser structures which are not recognizable to the human eye.
  • the additional information can not be recognized by the naked human eye or unaided human eye.
  • this examination of the data carrier is performed with an optical aid, such as a magnifying glass, a camera, in particular in a mobile phone.
  • graphically structured laser points which deviate from the round laser points introduced by means of a standard laser to form the round pixels for the image to be applied are selected as laser structuring.
  • triangles, hexagons, octagons, or other geometric shapes other than a round shape may be selected to form a laser spot for the security feature.
  • the laser structure may comprise areal filled, graphically structured laser spots.
  • these laser structures can also be embodied as unfilled, graphically structured laser spots or formed by a linear frame. This represents a further variation to the design of the laser spots, which can be combined with other laser spots.
  • the laser structure is formed by an intensity-modulated Guillosch structure.
  • the laser structure is formed by an intensity-modulated Guillosch structure.
  • laser structures are provided as security feature for the additional information, which consist of length-limited lines.
  • additional information consist of length-limited lines.
  • the production of a laser structure can be provided as a security feature, in which a superposition of the lines and / or line width is formed with different gray levels.
  • flowing transitions from the zone containing the additional information to the adjacent area of the actual image can thereby also be effected.
  • a further embodiment of the laser structures can be given by the fact that a plurality of intersecting lines are provided, which have laser points applied to the crossing points and / or on the lines. These laser points may differ in geometry from round laser spots or even correspond to the usual round pixels. In the case of the last-mentioned exemplary embodiment, when this structure is overwritten, individual laser points will be positioned outside the intersection points of the lines so that the manipulation can be recognized.
  • a further embodiment of the method for introducing the security feature into the additional information-containing zone may be that the selection of the laser structure is based on a customer-specific encryption. As a result, another security feature can be integrated.
  • a security feature may be that the laser structure is formed by individual lines having a certain orientation.
  • lines of predetermined length may, for example, be oriented to the right or to the left, upwards or downwards within the zone for introducing the additional information.
  • laser structures can again be applied on the line.
  • a line having a first orientation may have a first geometry of the laser spots.
  • the second line with a different orientation may have geometric laser points, which also differ from the first orientation, etc.
  • the introduction of the additional information is preferably carried out in annular or circular zones or rectangular zones. Likewise, areas can also be selected whose course of the zone are determined by brightness levels of the pixels.
  • the zone for receiving the additional information is introduced in an image, in particular a portrait photo of a holder of the data carrier, preferably in a core area.
  • an eye, nose or mouth area can be selected.
  • several zones can be provided.
  • the overall image can also be constructed from such graphic and / or geometric laser structures that deviate from conventional round laser spots which form the actual image.
  • the laser structure for forming the additional information is preferably produced with a microlaser module. As a result, it is possible to create laser structures which, in analogy to the microfilm, have a size of less than 0.3 mm.
  • FIG. 1 shows a schematic view of a data carrier with a security feature according to the invention
  • FIG. 2 a shows a representation of a portrait photo on the data carrier according to FIG. 1 with a security feature shown enlarged
  • FIG. 2b a schematic representation of a manipulated security feature according to FIG. 2a
  • FIG. 3a shows a representation of a portrait photo on the data carrier according to FIG. 1 with an enlarged alternative security feature
  • FIG. 3b shows a schematic representation of a manipulated security feature according to FIG. 3a
  • FIG. 4 a shows a representation of a portrait photograph on the data carrier according to FIG. 1 with an enlarged alternative security feature
  • FIG. 4b shows a schematic representation of a manipulated security feature according to FIG. 4a
  • Figure 5a u. b is a schematic representation of an alternative embodiment to Figure 2a and b and
  • Figure 6a u. b is a schematic representation of another alternative embodiment to Figure 2a and 2b.
  • FIG. 1 shows a data carrier 11.
  • This data carrier 11 can be designed, for example, as a data card, in particular as a passport or bank card.
  • This volume 11 may also be part of a data page for a book-type document. Likewise, this volume 11 may be part of other value or security documents.
  • the data carrier 11 has a layer 12 which is writable and / or printable.
  • a Personalisier Scheme is provided in which, for example, the name 14 of the holder and his picture 15, in particular portrait photo are applied or recorded.
  • security features 16, such as, for example, tilt images or holograms, and / or further security features 17, such as, for example, a guilloche structure, security threads or the like, can be applied to the layer 12 or in the layer 12.
  • further data fields 19 may be provided, which may include a company identification or the indication of an institution or the like.
  • the portrait photo 15 is shown schematically enlarged, as can be seen with the naked eye.
  • This portrait photo 15 is produced by the introduction of pixels by means of a laser device.
  • the gray or brightness values or color values of these points are known to be set by means of a control of the laser device.
  • the image is composed of a plurality of individual, round laser dots as pixels.
  • additional information is integrated with at least one security feature 21, which is recognizable with an optical magnification aid, such as a magnifying glass or a camera, and is shown schematically enlarged.
  • This at least one security feature 21 is introduced in a zone 22 having a defined size.
  • the zone 22 is provided in a core area of the image 15 of the owner, such as in the eye, nose and / or mouth area.
  • the introduced within the zone 22 security feature 21 includes geometric or graphical laser structures 23, which according to the first embodiment of round pixels have different geometries, such as triangles, hexagons or the like, which adapted according to the gray or brightness gradient of the introduced area of the actual image 15 are.
  • a different frequency of the individual laser structures 23 can occur in regions within the zone 22.
  • hexagonal and triangular laser structures 23 are mixed with one another.
  • only one laser structure 23 may be introduced, which is however deviating from round pixels.
  • a mixture of a plurality of geometrically different laser spots may be provided to form the laser structures 23.
  • FIG. 2b shows a manipulated security feature 21.
  • an over-lasering of the zone 22 with additional information for example, to integrate a pair of glasses in the portrait image 15 or to change the eye contour, so that in addition round pixels 25 as laser points, with a conventional laser device can be seen within the laser structuring 23 in the zone 22.
  • the manipulation becomes immediately apparent.
  • FIG. 3 a shows an alternative embodiment of the security feature 21.
  • the laser structure 23 is exclusively linear. These lines 27 may have the same line thickness. Likewise, a line may be altered by modulating the intensity when applied to zone 22. In particular, an intensity-modulated Guillosch structure can be introduced. Preferably, such an embodiment is selected for the zone 22 in the eye area, in particular in the area of the iris.
  • FIG. 3b shows a manipulation of a laser structure 23 according to the embodiment in FIG. 3a.
  • the subsequently introduced round pixels 25 are immediately apparent.
  • FIG. 4 a shows a further alternative embodiment for forming the laser structure 23.
  • intersecting lines 27 are introduced into the zone 22 in the manner of a network.
  • round pixels 25 can be applied, which correspond to the usual round pixels, but which are applied selectively to crossing points of the lines 27 and / or on the line 27.
  • FIG. 4b shows a manipulated security feature 21 according to FIG. 4a.
  • the manipulation is evident from the fact that round pixels 25 are not located at intersections or not on the lines 27, but in between and thus the manipulation is recognizable.
  • FIG. 5 a shows a further alternative embodiment for forming the laser structure 23.
  • This embodiment deviates, for example, from that in FIG. 2 a in that no areally blackened or surface-colored security features 21 are provided, but instead they are designed as unfilled geometries.
  • FIG. 5b shows a manipulated security feature 21 according to FIG. 5a.
  • the manipulation is again evident from the fact that the round pixels 25, which are also completely filled, clearly stand out from the unfilled laser structures 23 and lie therebetween. Even if the round pixels 25 lie within the not completely filled, geometrically structured laser structure 23, the manipulation becomes apparent.
  • FIG. 6 a shows a further alternative embodiment for forming the security feature 21.
  • This zone 22 comprises lines 27, which correspond to the figure 4a, wherein in the embodiment for clarification of the deviation from Figure 4a, two individual lines are also shown only partially and by way of example.
  • various geometrically formed laser structures 23 can additionally be positioned on the lines 27.
  • the left line 27 which has an opening to the right, a laser structure 23 with a square geometry is applied.
  • laser structures 23 are applied with a round geometry, which are not filled.
  • the laser structures 23 applied on each line 27 may also differ from one another along the line 27.
  • the right and left line 27 comprises in a predetermined ratio and / or in a predetermined number of redundant laser structures 23.
  • FIG. 6b shows a manipulated security feature 21 according to FIG. 6a.
  • the manipulation can be seen by the fact that the round pixels 25 stand out from the lines 27, even if they happen to lie on the line 27.
  • the introduction of the laser structure 23 as a security feature 21 is preferably produced with a microlaser module.
  • a microlaser module preferably round, angular or annular zones 22 in the core regions of such a portrait photo 15 are selected, wherein at least one zone 22 for receiving at least one security feature 21 is formed.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Credit Cards Or The Like (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

La présente invention concerne un procédé d'application d'une image sur un support de données (11) au moyen d'un appareil laser, dans lequel l'image (15) à appliquer est constituée d'une pluralité de pixels auxquels sont attribuées des valeurs de gris, de luminosité ou de couleur, et dans lequel l'image (15) contient des informations supplémentaires comportant au moins une caractéristique de sécurité. Dans l'image (15) à appliquer est formée au moins une zone (22) qui est dépourvue de pixels de l'image (15) à appliquer effectivement et dans l'au moins une zone (22) sont introduites des informations supplémentaires comportant l'au moins une caractéristique de sécurité, qui comporte des structures laser géométriques ou graphiques (23) qui se distinguent des pixels (25) de l'image (15) à appliquer.
EP14744303.0A 2013-08-05 2014-07-23 Procédé d'application d'une image sur un support de données (11) au moyen d'un appareil laser Ceased EP3030427A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013108423.0A DE102013108423B4 (de) 2013-08-05 2013-08-05 Verfahren zum Aufbringen eines Bildes mittels eines Lasergerätes auf einen Datenträger
PCT/EP2014/065819 WO2015018639A1 (fr) 2013-08-05 2014-07-23 Procédé d'application d'une image sur un support de données (11) au moyen d'un appareil laser

Publications (1)

Publication Number Publication Date
EP3030427A1 true EP3030427A1 (fr) 2016-06-15

Family

ID=51228425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14744303.0A Ceased EP3030427A1 (fr) 2013-08-05 2014-07-23 Procédé d'application d'une image sur un support de données (11) au moyen d'un appareil laser

Country Status (3)

Country Link
EP (1) EP3030427A1 (fr)
DE (1) DE102013108423B4 (fr)
WO (1) WO2015018639A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014112610B3 (de) 2014-09-02 2015-12-24 Bundesdruckerei Gmbh Verfahren zur Erkennung von Manipulationen an einem Wert- und/oder Sicherheitsdokument
DE102015114665B4 (de) * 2015-09-02 2021-01-28 Bundesdruckerei Gmbh Raster

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677905A5 (fr) 1989-02-20 1991-07-15 Orell Fuessli Graph Betr Ag
GB0117391D0 (en) * 2001-07-17 2001-09-05 Optaglio Ltd Optical device and method of manufacture
US6720523B1 (en) 2002-09-23 2004-04-13 Igor Troitski Method for production of laser-induced images represented by incomplete data, which are supplemented during production
US20080284157A1 (en) 2005-03-29 2008-11-20 Sani Muke Tamper Evident Identification Documents
EP1889732A1 (fr) 2006-08-18 2008-02-20 Setec Oy Procédé de superposition d'images et procédé de personnalisation de documents avec de procédé
DE102007006120A1 (de) * 2007-02-02 2008-08-07 Tesa Scribos Gmbh Speichermedium mit einer optisch veränderbaren Speicherschicht
EP2100747B1 (fr) 2008-03-10 2015-02-25 Maurer Electronics Gmbh Procédé destiné à l'application d'une image dotée d'une information supplémentaire incorporée sur un support de données

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015018639A1 *

Also Published As

Publication number Publication date
DE102013108423A1 (de) 2015-02-19
WO2015018639A1 (fr) 2015-02-12
DE102013108423B4 (de) 2018-06-28

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