EP0718121B1 - Support de données et sa méthode de fabrication - Google Patents

Support de données et sa méthode de fabrication Download PDF

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Publication number
EP0718121B1
EP0718121B1 EP95120144A EP95120144A EP0718121B1 EP 0718121 B1 EP0718121 B1 EP 0718121B1 EP 95120144 A EP95120144 A EP 95120144A EP 95120144 A EP95120144 A EP 95120144A EP 0718121 B1 EP0718121 B1 EP 0718121B1
Authority
EP
European Patent Office
Prior art keywords
information
data carrier
laser
plastic layer
layer
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.)
Expired - Lifetime
Application number
EP95120144A
Other languages
German (de)
English (en)
Other versions
EP0718121A3 (fr
EP0718121A2 (fr
Inventor
Otto Dr. Bernecker
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 GmbH
Original Assignee
Giesecke and Devrient 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 Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP0718121A2 publication Critical patent/EP0718121A2/fr
Publication of EP0718121A3 publication Critical patent/EP0718121A3/xx
Application granted granted Critical
Publication of EP0718121B1 publication Critical patent/EP0718121B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation
    • 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
    • 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
    • B42D25/24—Passports
    • 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
    • B42D25/324—Reliefs
    • 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
    • B42D25/333—Watermarks
    • 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
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • 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
    • B42D25/425—Marking by deformation, e.g. embossing
    • 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
    • B42D25/43—Marking by removal of material
    • 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
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • 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
    • B42D2033/24—
    • B42D2035/30—
    • 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.]
    • 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.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y10T428/24868—Translucent outer layer
    • 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.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y10T428/24868—Translucent outer layer
    • Y10T428/24876—Intermediate layer contains particulate material [e.g., pigment, etc.]
    • 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.]
    • Y10T428/24934—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including paper layer

Definitions

  • the invention relates to a data carrier, such as an identification card, Credit card or the like, with at least a plastic layer that is used in certain areas With the help of a laser, and a process for its production.
  • a data carrier such as an identification card, Credit card or the like
  • the data carriers mentioned here are around any information carrier with visually readable Data such as Business cards or labels etc.
  • the invention relates to identification documents, such as ID cards, chip cards, passports or the like, in addition to general information, have individual, mostly user-related information. This is usually data such as the user's name, birthday, signature and photo. This individual data must be tamper-proof and counterfeiting are protected.
  • ID cards such as ID cards, chip cards, passports or the like
  • This individual data must be tamper-proof and counterfeiting are protected.
  • the manufacture deceptive imitations of real ID cards are becoming easier, so that always new and technically complex authenticity features have to be developed.
  • the hologram structures are therefore very often separated manufactured as a transfer embossed hologram and under heat and Pressure in certain areas on the disk transfer.
  • the layer thicknesses of the hologram elements are very small, but it is still with skillful handling possible, such a layer structure detach from a real document and onto a to transfer fake.
  • the data to be protected here the photo, can faked relatively easily by exchanging the photo that offers practically unchangeable engraving however, a good way to attempt such a forgery uncover.
  • the invention is therefore based on the object Data carrier and a method for its production propose that has an authenticity feature that is neither manipulable nor copiable, and finished Product can be manufactured easily and inexpensively can.
  • the invention is based on the knowledge that the surface quality a plastic film by means of a correspondingly controlled laser can be changed, without creating discoloration in the plastic material. This creates areas with different light scattering properties, that when viewed in incident light may not be visually recognizable and only stand out clearly when viewed in the glossy angle. So can be caused by the heat of the laser, for example smooth surfaces roughened, rough surfaces smoothed, transparent materials tarnished, cloudy materials clarified or removed entire layer areas become.
  • one or multilayer plastic ID card with smooth Surface in a certain area with a micro relief in the form of characters, patterns or the like Mistake.
  • the laser, its power and the plastic material have to be coordinated with each other be that the plastic material under the action the laser is not discolored.
  • the microrelief points such a fine structure that it cannot be reflected in incident light is recognizable and only appears under the gloss angle occurs.
  • the ID card can also be used during the lamination process in a section with a rough surface structure be provided by the laminating panels at the appropriate place with the negative structure be provided and thus imprint the relief on the cover film.
  • the security feature When introducing the security feature the irradiated areas due to the effects of heat of the laser softens, so that the relief structure in these Areas are lost and the surface of the map is smoothed becomes. This information is also primary visible under the gloss angle.
  • the outside accessible plastic film of a data carrier in the form engraved by characters or patterns i.e. the plastic material is evaporated using the laser, so that Deepening in the form of readable information in the Plastic material arise.
  • This type of labeling can be particularly advantageous use in the production of passports.
  • the engraving can here, for example, directly below or above the respective printed or color-contrasted lasered Information can be arranged for quick comparison to enable the two information.
  • the engraved information can be arranged on a separate information carrier. This is particularly useful for book-shaped passports that contain several data sheets anyway. So besides the laser-marked data sheet in the usual way another made of plastic or with one Plastic sheet laminated data sheet can be provided in which at least parts of the user-related data record, e.g. the photo of the owner, through material removal can be engraved with a laser.
  • the artificial blind film can have any opacity in this case. If it is transparent, the engraved information can read well, especially under the glossy angle become.
  • opaque or translucent Foils can also create a watermark effect adding a layer of paint to the plastic film before engraving or plastic film with higher opacity becomes. As a result, the engraving hardly appears in reflected light, however, when viewed in transmitted light due to the different translucent areas clearly.
  • the laser engraving has compared to the mechanical engraving process the decisive advantage that with it engravings of consistently high quality can, as there are no wearing parts, such as a prick etc. are needed. Furthermore, it can be on the finished passport document be performed.
  • the generation of the authenticity feature according to the invention can be very beneficial in the labeling process of the disk be integrated, especially if the disk color contrasting with a laser anyway is labeled.
  • labeling identity documents are usually all user-related Data such as photo, name, signature etc. all in one linked single digital record that eventually to control the individual information output devices used, such as laser printers, inkjet printers or laser beam etc. is used.
  • the contrasting Laser marking and colorless laser processing one and the same laser, e.g. a Nd: YAG laser, to use.
  • a Nd: YAG laser e.g. a Nd: YAG laser
  • From the area of contrasting laser marking it is known that only from a certain Laser power discoloration takes place which continues at increasing laser power becomes stronger and eventually leads to the complete burning of the material.
  • a power controllable laser it is therefore possible to generate halftone images.
  • the laser beam is here adjusted via optics so that its focus in Volume of the plastic material is. Will the focus position laid in the surface area of the material, i.e. shortened its length, so the material in the irradiated areas melted and partially decomposed, so that notches without color changes of the plastic.
  • any other type of laser such as CO 2 or excimer lasers, can also be used.
  • Which laser is most suitable for processing which substrate material depends strongly on the parameters of the decomposition energy of the substrate material, laser power and laser type (eg pulsed or continuously operated laser). These parameters must therefore be experimentally optimized for each special application.
  • the invention is not only advantageous everywhere there can be used where for reasons of counterfeit protection a security feature is to be provided.
  • the invention also provides an easy way to store data to make it as inconspicuous as possible.
  • manufacturer data which is basically the layout of the document disrupt and their content is of moderate interest to the general public can, as part of personalization of the documents brought in without complications become. They hardly appear in reflected light and are clearly visible under the gloss angle in any case.
  • Fig. Shows a data carrier according to the invention.
  • the ID card shown can be one or more layers be executed and in any case has one from the outside accessible layer of artificial peat.
  • the card 1 has an authenticity feature 2.
  • the Area 5 has due to its surface quality first diffuse light-scattering properties. This Area 5 is interrupted by areas 3, one readable information or a pattern or the like represent and a different surface texture have, as their environment 5. Because of that the information 3 also other diffuse light scattering Properties that enable the information from a certain viewing angle detect.
  • the data carrier 1 can of course still more Security features or an integrated circuit exhibit. Such an ID card can also be used be included in a book-shaped passport.
  • the personalization data 4 are preferably included a laser in the form of discoloration of the plastic material brought in.
  • the data carrier information 3 is also included with the help of the same or another laser, by the original surface texture of the Volume 1 is changed. This can vary widely Wise happen as follows is explained.
  • FIG. 2 shows a variant of the data carrier according to the invention 1 on average, only the one to be processed Plastic layer 6 is shown. Under this Layer 6 can of course be further plastic or paper layers.
  • the plastic film in a first step with a roughened surface area 5, e.g. with the help of the laminating plates or by simply embossing a surface structure.
  • This area 5 was then determined Position 3 with a laser that is matched to the material irradiated.
  • Disk 1 shows a further embodiment of the invention Disk 1 shown.
  • the Surface area 5 of the plastic material 6 a homogeneous smooth surface while the information 3 brought into the material in the form of a laser engraving are.
  • the material can also be in the surface area be melted without discoloration of the material occurs.
  • plastic layer as Foil, but as a lacquer layer on a carrier layer to design.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Credit Cards Or The Like (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Holo Graphy (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Peptides Or Proteins (AREA)

Claims (18)

  1. Support de données, tel qu'une carte d'identité, une carte de crédit ou analogue, comportant au moins une couche en matière plastique, présentant dans des zones déterminées des informations introduites à l'aide d'un laser, caractérisé en ce que la couche de matière plastique présente, au moins dans une zone partielle, du fait de son état de surface, des premières propriétés dispersives diffuses de la lumière, et en ce que dans cette zone sont prévues des premières informations, sous la forme de modifications locales, générées à l'aide d'un laser, de l'état de surface, qui présentent des deuxièmes propriétés dispersives diffuses de la lumière, de sorte que les informations soient lisibles au moins sous un angle d'observation déterminé, mais ne présentent aucun contraste coloré vis-à-vis de leur environnement.
  2. Support de données selon la revendication 1, caractérisé en ce que la couche en matière plastique présente, dans la zone partielle, une surface rugueuse dans laquelle les informations se présentent sous la forme de zones de surface lisses.
  3. Support de données selon la revendication 1, caractérisé en ce que la couche de matière plastique présente, dans la zone partielle, une surface lisse.
  4. Support de données selon la revendication 3, caractérisé en ce que les informations se présentent sous la forme de déformations de la couche de matière plastique.
  5. Support de données selon la revendication 3, caractérisé en ce que les informations se présentent sous la forme d'un enlèvement de matériau de la couche de matière plastique.
  6. Support de données selon la revendication 5, caractérisé en ce que la couche de matière plastique est dotée, au moins dans la zone partielle, d'une couche colorée ou d'une feuille de matière plastique qui, par rapport à la couche de matière plastique, présente une opacité supérieure et dans laquelle les premières informations se présentent de façon congruente à la couche de matière plastique.
  7. Support de données selon au moins l'une des revendications 3 à 5, caractérisé en ce que les informations constituent un micro-relief.
  8. Support de données selon au moins l'une des revendications 1 à 7, caractérisé en ce que le support de données présente des deuxièmes informations lisibles qui sont appliquées sous la forme d'un contraste chromatique analysable visuellement.
  9. Support de données selon au moins l'une des revendications 1 à 8, caractérisé en ce que le support de données est une carte d'identité monocouche.
  10. Support de données selon au moins l'une des revendications 1 à 8, caractérisé en ce que le support de données est un document d'identité réalisé sous la forme d'un livret et en ce que les deuxièmes informations se présentent au moins partiellement sur une première face de données.
  11. Support de données selon la revendication 10, caractérisé en ce que les premières informations sont également disposées sur la première face de données.
  12. Support de données selon la revendication 10, caractérisé en ce que les premières informations sont disposées sur une deuxième face de données.
  13. Support de données selon ait moins l'une des revendications 1 à 12, caractérisé en ce que les premières informations sont d'un contenu au moins partiellement identique à celui des deuxièmes informations.
  14. Support de données selon au moins l'une des revendications 1 à 13, caractérisé en ce que la couche de matière plastique est une couche de laque ou une feuille de matière plastique.
  15. Procédé de fabrication d'un support de données selon la revendication 1, caractérisé en ce que l'état de surface de la couche de matière plastique est modifié à l'aide d'un laser, de manière que soient constituées des premières informations lisibles au moins sous un angle d'observation déterminé, et en ce que le matériau en matière plastique et la puissance du laser sont réglés l'un par rapport à l'autre, de telle sorte que la couche de matière plastique soit certes modifiée, mais cependant pas colorée dans les zones frappées par le rayonnement laser.
  16. Procédé selon la revendication 15, caractérisé en ce que le laser est un laser Nd:YAG, CO2 ou excimère.
  17. Procédé selon la revendication 15 ou 16, caractérisé en ce qu'avec le même laser sont appliquées des deuxièmes informations se présentant sous la forme de colorations ou de brûlages du matériau.
  18. Procédé selon au moins l'une des revendications 15 à 17, caractérisé en ce que la couche de matière plastique est lissée, fondue ou en partie arrachée par le rayonnement laser.
EP95120144A 1994-12-21 1995-12-20 Support de données et sa méthode de fabrication Expired - Lifetime EP0718121B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4445822A DE4445822A1 (de) 1994-12-21 1994-12-21 Datenträger und Verfahren zu seiner Herstellung
DE4445822 1994-12-21

Publications (3)

Publication Number Publication Date
EP0718121A2 EP0718121A2 (fr) 1996-06-26
EP0718121A3 EP0718121A3 (fr) 1996-07-24
EP0718121B1 true EP0718121B1 (fr) 1999-06-02

Family

ID=6536604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95120144A Expired - Lifetime EP0718121B1 (fr) 1994-12-21 1995-12-20 Support de données et sa méthode de fabrication

Country Status (8)

Country Link
US (1) US5958528A (fr)
EP (1) EP0718121B1 (fr)
JP (1) JP3902257B2 (fr)
AT (1) ATE180720T1 (fr)
DE (2) DE4445822A1 (fr)
DK (1) DK0718121T3 (fr)
ES (1) ES2131750T3 (fr)
ZA (1) ZA9510839B (fr)

Families Citing this family (22)

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US6710284B1 (en) * 1999-02-26 2004-03-23 Micron Technology, Inc. Laser marking techniques for bare semiconductor die
AUPQ119999A0 (en) * 1999-06-25 1999-07-22 Note Printing Australia Limited Improved security documents
US6780012B1 (en) * 1999-12-20 2004-08-24 3M Innovative Properties Company Article with laser engraved identification mark
DE10126342C1 (de) * 2001-05-30 2003-01-30 Hsm Gmbh Optisches Element und Verfahren zu dessen Herstellung
JP2003191697A (ja) * 2001-12-12 2003-07-09 Ichika Kokusai Kagi Kofun Yugenkoshi 透かし彫り用紙及びその彫刻方法
EP1467834A4 (fr) 2001-12-24 2005-04-06 Digimarc Id Systems Llc Elements de securite grave au laser destines a des documents d'identification et procedes de fabrication de ces elements
CA2471457C (fr) 2001-12-24 2011-08-02 Digimarc Id Systems, Llc Documents d'identification comprenant des informations invisibles variables et leurs procedes de production
US7694887B2 (en) 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification documents
ATE555911T1 (de) 2001-12-24 2012-05-15 L 1 Secure Credentialing Inc Verfahren zur vollfarb-markierung von id- dokumenten
US7728048B2 (en) 2002-12-20 2010-06-01 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
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US5958528A (en) 1999-09-28
ATE180720T1 (de) 1999-06-15
EP0718121A3 (fr) 1996-07-24
JP3902257B2 (ja) 2007-04-04
EP0718121A2 (fr) 1996-06-26
DE59506095D1 (de) 1999-07-08
DK0718121T3 (da) 1999-11-15
DE4445822A1 (de) 1996-06-27
ZA9510839B (en) 1996-06-20
ES2131750T3 (es) 1999-08-01
JPH08248864A (ja) 1996-09-27

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