EP2681052A1 - Verfahren zur herstellung eines farblaserbilds mit ansicht in drei dimensionen und dokument mit farblaserbild mit ansicht in drei dimensionen darauf - Google Patents

Verfahren zur herstellung eines farblaserbilds mit ansicht in drei dimensionen und dokument mit farblaserbild mit ansicht in drei dimensionen darauf

Info

Publication number
EP2681052A1
EP2681052A1 EP12709675.8A EP12709675A EP2681052A1 EP 2681052 A1 EP2681052 A1 EP 2681052A1 EP 12709675 A EP12709675 A EP 12709675A EP 2681052 A1 EP2681052 A1 EP 2681052A1
Authority
EP
European Patent Office
Prior art keywords
rgb
pixels
sub
lens array
color laser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12709675.8A
Other languages
English (en)
French (fr)
Other versions
EP2681052B1 (de
Inventor
Jean-Pierre Lazzari
Jean Marc Lazzari
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2681052A1 publication Critical patent/EP2681052A1/de
Application granted granted Critical
Publication of EP2681052B1 publication Critical patent/EP2681052B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B41M3/148—Transitory images, i.e. images only visible from certain viewing angles
    • 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
    • B41M5/267—Marking of plastic artifacts, e.g. with laser
    • 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
    • B41M5/34—Multicolour thermography
    • 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
    • B42D15/00—Printed matter of special format or style not otherwise provided for
    • 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
    • B42D25/23—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
    • B42D25/20—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
    • B42D25/309—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
    • B42D25/30—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
    • B42D25/351—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
    • B42D25/41—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
    • 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
    • B42D25/45—Associating two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/455—Associating two or more layers using heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/46—Associating two or more layers using pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F7/00—Designs imitating three-dimensional effects

Definitions

  • the present invention relates to the production of a color laser image observable in three dimensions. It finds applications particularly in identity images dedicated to official documents: identity cards, credit cards, vital cards, passports, driving licenses, badges. secure entry, etc.
  • the modern identification cards are composed of a plastic support, comprising various decoration, identification, or anti-forgery patterns, covered by a transparent protective sheet.
  • the transparent protective sheet is hot welded and under strong pressure on the plastic support of the document. This operation is called “rolling" according to the professional language.
  • the identity documents In addition to the printed motifs on the support, the identity documents must bear the identity photo of the owner. This identity photo is produced by a laser beam which through the transparent protective sheet, which will be named later "lasérisable”, generates gray levels, by carbonization in this protective sheet. A secure black and white image is thus obtained. It can not be replaced by a image printed by inkjet for example, without destroying the identity document.
  • US Pat. No. 4,765,656 discloses an information carrier covered with cylindrical lenses through which a laser beam by severe carbonization two black and white images, distinct according to the angle of inclination of the laser beam. The reverse path of light, allows the observer to see one or the other image according to the inclination of the support.
  • the RGB primary colors therefore include the YMC colors from which they are derived.
  • These color triplets RGB, YMC are said to be independent, because the mixture of two colors of the same triplet can not form the third color of this same triplet. There is therefore a large number of independent color triplets, and therefore of
  • RGB pixels the sub-pixels whose colors correspond to the definition of independent colors
  • RGB red, green, blue
  • the present invention aims to overcome the drawbacks of the state of the art, by
  • the invention proposes a matrix of pixels comprising sub-pixels with primary colors, which will be named subsequently by pixels (RGB) an array of optical lenses, deviating the laser beam during carbonization etching of the laserizable protective sheet to form the gray levels of the sub-pixels (RGB) producing, according to the angle of incidence of the laser beam, two separate color laser images, and by reflection of the ambient light, to reveal these two color laser images separately observable or simultaneously producing in this case by effect
  • the subject of the invention is a method for forming two distinct color laser images from an assembly comprising a support, a lasérisable protection sheet, a network of cylindrical optical lenses, pixels made up of sub-pixels. (RGB), printed with primary colors in the form of parallel columns (C1, C2, C3).
  • RGB sub-pixels.
  • the lens array is composed of cylindrical, parallel lenses, and the sub pixels (RGB) of columns parallel to the primary colors having their major axis located perpendicularly to that of the long axis of the cylindrical lenses of the lens array.
  • the sub-pixel array (RGB) is printed on the laserizable, offset, ink jet, thermal transfer, or other technique. It can according to one embodiment of the invention be printed on the support.
  • the lasérisable protective sheet In a second manufacturing step, called “rolling" the lasérisable protective sheet, is heat-welded under pressure on the document support trapping the matrix of sub-pixels (RGB) between the lasérisable protective sheet, and the support of the document.
  • the lamination forms on the upper surface of the lasérisable protective sheet, the lens array. The latter partially or totally overlaps the matrix of sub pixels (RGB).
  • the formation of the images, object of the invention, apparently restoring the relief image of the subject is carried out using a laser beam which carbonizes in its thickness the lasérisable protection sheet, with intensities or variable surfaces, opposite each sub-pixel, (RGB) the laser beam scanning the sub-pixel columns (C1, C2, C3) parallel to the long axis of these columns, and having a certain angle of incidence relative to the plane of the lens array, is deflected by the latter, makes appear by carbonization in the lasérisable protective film, the gray levels of two separate images corresponding to the two stereoscopic images of the subject.
  • a laser beam which carbonizes in its thickness the lasérisable protection sheet, with intensities or variable surfaces, opposite each sub-pixel, (RGB) the laser beam scanning the sub-pixel columns (C1, C2, C3) parallel to the long axis of these columns, and having a certain angle of incidence relative to the plane of the lens array, is deflected by the latter, makes appear by carbonization in the lasérisable
  • Ambient light follows the reverse path of the laser beam, and is reflected through the lens array at different angles, both color laser images that stereoscopically appear to the observer in a direction perpendicular to the plane of the document, as a single image in three dimensions.
  • the invention also relates to a document comprising a laser image. color observable in three dimensions, by the implementation of the method above.
  • This document comprises a laserizable protective sheet on which a lens array has been hot printed. This sheet is at least partially carbonized by a laser beam.
  • Printed pixels have sub-pixels (RGB) in the form of columns. They are under the lens array and have the same surface.
  • the lasérisable protection sheet, on which the lens array, the sub-pixel (RGB) columns and the document support are located, are suitable for being laminated together.
  • the axis of the lens array is perpendicular to that of the column axis of sub pixels (RGB).
  • the formation of the three-dimensional observable color laser image is carried out on the document, by a laser beam that sweeps through the lens array, along the axis of the sub-pixel (RGB) columns at a first angle. incident on the plane of the lens array, forming the gray levels in the laserizable protective sheet, of a first color laser image taken at a first angle of the subject, and at a second angle of incidence with respect to the plane of the lens array, forming the gray levels of a second color laser image, taken at a second angle of the subject.
  • the two color laser images by inverse reflection of ambient light through the network of lenses, appear to the observer as a three-dimensional color laser image of the subject.
  • FIG. 1 shows in section according to the prior art the assembly for producing a black and white laser image producing a three-dimensional vision.
  • FIG. 2 shows in section according to the prior art the assembly for producing a color laser image.
  • FIG. 3 shows a front view of the sub-pixel columns (RGB) and the optical lens array (L1, L2, L3)
  • FIG. 4 shows in section, the path of the laser beam burning by carbonization the gray levels of color laser images.
  • FIG. 5 shows in section the reflection of the ambient light, allowing the three-dimensional vision of the laser color images.
  • FIG. 6 shows in section the sub-pixel matrix (RGB), the laserizable protective layer comprising the lens array, the assembly being laminated on the support.
  • RGB sub-pixel matrix
  • Figure 1 shows the section (13) of a lens array (10) according to the prior art.
  • the laser beams (11) and (12) having a certain angle of incidence with respect to the plane of the lens array, are deflected by the lenses and form gray levels (14) and (15) constituting two distinct images. white engraved by laser carbonization.
  • Figure 2 shows the section (20) of a . assembly comprising the support (21), a matrix (25) of sub pixels (RGB) a laser beam (23) which by carbonization in the lasérisable protective sheet (22) forms non-reflecting surfaces (24) constituting the gray levels of a color laser image, according to the prior art.
  • FIG. 3 shows a front view (30) of a matrix of sub pixels (RGB), (25) with primary colors.
  • the sub pixels of this matrix have the form of parallel columns (C1, C2, C3) aligned along their major axis (31).
  • a network (10) of cylindrical lenses, (L1, L2, L3) are aligned along their major axis (32), covers the matrix of sub pixels (RGB), (25).
  • the axes (31) of the subpixel columns and the axes (32) of the cylindrical lenses are perpendicular;
  • FIG. 4 shows the section (40) along the axis (31) of the assembly represented in FIG. sub pixel matrix (RGB), (25) is shown here in section.
  • Laserizable materials are, by way of non-limiting examples, polycarbonates, certain polyvinyl chlorides treated, acrylonitrile-butadiene-styrenes treated, or treated polyethylene terephthalates ethylene.
  • the lasérisable material is partially carbonized by the laser to form gray levels of a personalized image.
  • the lasérisable protection film is transparent and has a thickness of between 20 ⁇ m and 500 ⁇ m.
  • the laser scanning is performed along the axis (31) at a first angle of incidence (43) with respect to the plane of the lens array, forming the gray levels (46) of a first color laser image taken under a first angle of the subject, and at a second angle of incidence (44) with respect to the plane of the lens array, forming the gray levels (45) of a second color laser image, taken at a second angle of the subject.
  • Figure 5 shows in section (50) the reverse path of the ambient light through the network of. lenses (L1, L2, L3) printed on the lasérisable protective layer (22) is reflected on the matrix. sub-pixels (RGB), (25), showing the gray levels (45) of the first color image, and (46) of the second color image, to the view (53) of the observer, located at the perpendicular to the plane of the lenses (L1, L2, L3), according to the reflected rays (52) and (51) producing stereoscopic color laser vision of the subject in three dimensions.
  • RGB sub-pixels
  • FIG. 6 shows in section (60) an assembly, comprising the support (21) on which is laminated the lasérisable protection sheet (22), the matrix of sub pixels (RGB), (25) and opposite this matrix of under pixels, the lens array
  • This lens array is made by hot pressing on the sheet (22) during the lamination of the lasérisable protective sheet

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Printing Methods (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
EP12709675.8A 2011-03-01 2012-02-16 Verfahren zur herstellung eines farblaserbilds mit ansicht in drei dimensionen und dokument mit farblaserbild mit ansicht in drei dimensionen darauf Active EP2681052B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1100606A FR2972136B1 (fr) 2011-03-01 2011-03-01 Procede de realisation d'image couleur laser observable en trois dimensions et document sur lequel une image laser couleur observable en trois dimensions est realisee
PCT/FR2012/000060 WO2012117169A1 (fr) 2011-03-01 2012-02-16 Procede de realisation d'image laser couleur observable en trois dimensions et document sur lequel une image laser couleur observable en trois dimensions est realisee.

Publications (2)

Publication Number Publication Date
EP2681052A1 true EP2681052A1 (de) 2014-01-08
EP2681052B1 EP2681052B1 (de) 2015-04-08

Family

ID=45855954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12709675.8A Active EP2681052B1 (de) 2011-03-01 2012-02-16 Verfahren zur herstellung eines farblaserbilds mit ansicht in drei dimensionen und dokument mit farblaserbild mit ansicht in drei dimensionen darauf

Country Status (4)

Country Link
US (1) US9001173B2 (de)
EP (1) EP2681052B1 (de)
FR (1) FR2972136B1 (de)
WO (1) WO2012117169A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2972553B1 (fr) 2011-03-10 2013-03-15 Jean Pierre Lazzari Procede de realisation d'une image laser couleur retro eclairee, document identitaire mettant en oeuvre ce procede et systeme de retro eclairage
FR3013256B1 (fr) * 2013-11-15 2016-01-15 Oberthur Technologies Procede de personnalisation visuelle d'un document d'identite comportant une image latente
US10385514B1 (en) 2014-12-30 2019-08-20 Idemia Identity & Security USA LLC Identification document with dynamic window
EP3893062A1 (de) * 2015-02-09 2021-10-13 Nanografix Corporation Systeme und verfahren zur erzeugung variabler, digitaler, optischer bilder unter verwendung generischer optischer matrizen
US10946670B1 (en) 2015-04-09 2021-03-16 Get Group Holdings Limited Compositions, apparatus, methods, and substrates for making images and text
GB2564122B (en) * 2017-07-04 2021-01-13 De La Rue Int Ltd Optical devices and methods for their manufacture
FR3079052A1 (fr) * 2018-03-16 2019-09-20 Idemia France Document apte a generer une image couleur
DE102018113575A1 (de) * 2018-06-07 2019-12-12 Bundesdruckerei Gmbh Sicherheitselement mit farbiger Abbildung
FR3093302B1 (fr) * 2019-02-28 2021-10-22 Idemia France Image couleur formée à partir d’un hologramme

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FR1001415A (fr) 1946-05-04 1952-02-25 Cie Francaise Des Conduites D Moulinet de pêche à démultiplication
FR1100578A (fr) 1953-05-26 1955-09-21 Perfogit Procédé de préparation de produits de polymérisation purs de l'acide 11-aminoundécanoïque
ES2038119T3 (es) * 1985-10-15 1993-07-16 Gao Gesellschaft Fur Automation Und Organisation Mbh Soporte de datos con caracteristica optica de autenticidad, asi como procedimiento para la fabricacion y comprobacion de dicho soporte de datos.
US5364829A (en) * 1991-08-30 1994-11-15 Matsushita Electric Industrial Co., Ltd. Rewritable recording medium and a method of recording in the same
DE4339216A1 (de) * 1993-11-18 1994-04-21 Raoul Dr Nakhmanson Termosensitiver Aufzeichnungsträger für farbige Darstellungen
DE10358784A1 (de) * 2003-12-12 2005-07-14 Giesecke & Devrient Gmbh Datenträger mit mittels Laserstrahl eingeschriebenen Kennzeichnungen und Verfahren zu seiner Herstellung
NL1028776C2 (nl) * 2005-04-14 2006-10-20 Sdu Identification Bv Identificatie en werkwijze voor het vervaardigen daarvan.
US8314828B2 (en) * 2009-10-18 2012-11-20 Gemalto Sa Personalization of physical media by selectively revealing and hiding pre-printed color pixels

Also Published As

Publication number Publication date
WO2012117169A1 (fr) 2012-09-07
FR2972136B1 (fr) 2013-03-15
US9001173B2 (en) 2015-04-07
US20140028775A1 (en) 2014-01-30
EP2681052B1 (de) 2015-04-08
FR2972136A1 (fr) 2012-09-07

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