FR3130689B1 - Security device usable to generate an enlarged projected image using microlenses and a perforated metal layer - Google Patents

Security device usable to generate an enlarged projected image using microlenses and a perforated metal layer Download PDF

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Publication number
FR3130689B1
FR3130689B1 FR2113822A FR2113822A FR3130689B1 FR 3130689 B1 FR3130689 B1 FR 3130689B1 FR 2113822 A FR2113822 A FR 2113822A FR 2113822 A FR2113822 A FR 2113822A FR 3130689 B1 FR3130689 B1 FR 3130689B1
Authority
FR
France
Prior art keywords
projected image
metal layer
microlenses
security device
enlarged projected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR2113822A
Other languages
French (fr)
Other versions
FR3130689A1 (en
Inventor
Paul Azuelos
Marie Mazzolini
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.)
Idemia France SAS
Original Assignee
Idemia France SAS
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 Idemia France SAS filed Critical Idemia France SAS
Priority to FR2113822A priority Critical patent/FR3130689B1/en
Priority to PCT/FR2022/052396 priority patent/WO2023111481A1/en
Publication of FR3130689A1 publication Critical patent/FR3130689A1/en
Application granted granted Critical
Publication of FR3130689B1 publication Critical patent/FR3130689B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B42D25/324—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
    • B42D25/346—Perforations
    • 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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373—Metallic materials
    • 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
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Optics & Photonics (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

Dispositif de sécurité utilisable pour générer une image projetée agrandie utilisant des microlentilles et une couche de métal perforée Dispositif de sécurité utilisable pour générer une image projetée agrandie sur une surface espacée du dispositif lorsque le dispositif a une première face placée en regard de la surface espacée et lorsqu’une deuxième face du document opposée à la première face est éclairée, le document comprenant : - une première couche (101) comprenant un réseau de microlentilles (102), et - une deuxième couche de métal (103) agencée à une distance de la première couche qui est supérieure à la distance focale de chaque microlentille, dans lequel la deuxième couche de métal comporte une pluralité de motifs (104), formés par une ou plusieurs perforations de la couche de métal (103), chaque motif de la pluralité de motif étant associé à une microlentille, pour que lorsque la deuxième face du document est éclairée, l’image projetée agrandie est formée sur la surface espacée par la combinaison des projections de chaque motif. Figure pour l’abrégé : Fig. 1ASecurity device usable for generating an enlarged projected image using microlenses and a perforated metal layer Security device usable for generating an enlarged projected image on a spaced surface of the device when the device has a first face placed facing the spaced surface and when a second face of the document opposite the first face is illuminated, the document comprising: - a first layer (101) comprising an array of microlenses (102), and - a second layer of metal (103) arranged at a distance of the first layer which is greater than the focal length of each microlens, wherein the second metal layer has a plurality of patterns (104), formed by one or more perforations of the metal layer (103), each pattern of the plurality pattern being associated with a microlens, so that when the second face of the document is illuminated, the enlarged projected image is formed on the spaced surface by the combination of the projections of each pattern. Figure for abstract: Fig. 1A

FR2113822A 2021-12-17 2021-12-17 Security device usable to generate an enlarged projected image using microlenses and a perforated metal layer Active FR3130689B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2113822A FR3130689B1 (en) 2021-12-17 2021-12-17 Security device usable to generate an enlarged projected image using microlenses and a perforated metal layer
PCT/FR2022/052396 WO2023111481A1 (en) 2021-12-17 2022-12-16 Security device which can be used to generate an enlarged projected image using microlenses and a perforated metal layer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2113822A FR3130689B1 (en) 2021-12-17 2021-12-17 Security device usable to generate an enlarged projected image using microlenses and a perforated metal layer
FR2113822 2021-12-17

Publications (2)

Publication Number Publication Date
FR3130689A1 FR3130689A1 (en) 2023-06-23
FR3130689B1 true FR3130689B1 (en) 2024-01-19

Family

ID=80999393

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2113822A Active FR3130689B1 (en) 2021-12-17 2021-12-17 Security device usable to generate an enlarged projected image using microlenses and a perforated metal layer

Country Status (2)

Country Link
FR (1) FR3130689B1 (en)
WO (1) WO2023111481A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005028162A1 (en) * 2005-02-18 2006-12-28 Giesecke & Devrient Gmbh Security element for protecting valuable objects, e.g. documents, includes focusing components for enlarging views of microscopic structures as one of two authenication features
FR3079052A1 (en) 2018-03-16 2019-09-20 Idemia France DOCUMENT TO GENERATE A COLOR IMAGE

Also Published As

Publication number Publication date
FR3130689A1 (en) 2023-06-23
WO2023111481A1 (en) 2023-06-22

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