MA42220B2 - Procédé de fabrication d'un hologramme ainsi qu'un élément de sécurité et un document de sécurité - Google Patents

Procédé de fabrication d'un hologramme ainsi qu'un élément de sécurité et un document de sécurité

Info

Publication number
MA42220B2
MA42220B2 MA42220A MA42220A MA42220B2 MA 42220 B2 MA42220 B2 MA 42220B2 MA 42220 A MA42220 A MA 42220A MA 42220 A MA42220 A MA 42220A MA 42220 B2 MA42220 B2 MA 42220B2
Authority
MA
Morocco
Prior art keywords
virtual
hologram
calculated
security
planes
Prior art date
Application number
MA42220A
Other languages
English (en)
Other versions
MA42220A1 (fr
Inventor
Sebastian Mader
Walter Harald Dr
Corrado Fraschina
Original Assignee
Ovd Kinegram Ag
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 Ovd Kinegram Ag filed Critical Ovd Kinegram Ag
Publication of MA42220A1 publication Critical patent/MA42220A1/fr
Publication of MA42220B2 publication Critical patent/MA42220B2/fr

Links

Classifications

    • G—PHYSICS
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    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
    • G03H1/0808—Methods of numerical synthesis, e.g. coherent ray tracing [CRT], diffraction specific
    • 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
    • B42D25/328—Diffraction gratings; Holograms
    • 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
    • B42D25/305—Associated digital information
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • G03H2270/00—Substrate bearing the hologram
    • G03H2270/30—Nature
    • G03H2270/32—Transparent

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Graphics (AREA)
  • Theoretical Computer Science (AREA)
  • Geometry (AREA)
  • Software Systems (AREA)
  • Holo Graphy (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

L'invention concerne un procédé de production d'un hologramme (1), notamment d'un hologramme (1) pour des éléments de sécurité (1 a) et/ou des documents de sécurité (1 b). Un ou plusieurs plans d'hologramme virtuels (10) sont disposés devant et/ou derrière un ou plusieurs modèles virtuels (20) et/ou un ou plusieurs plans d'hologramme virtuels (10) sont disposés de telle sorte qu'ils coupent un ou plusieurs modèles virtuels (20). Une ou plusieurs sources de lumière virtuelles (30) sont disposées sur un ou plusieurs champs partiels de la surface (21) d'un ou plusieurs des modèles virtuels (20). Un ou plusieurs champs électromagnétiques virtuels (40) émanant d'au moins l'une des sources de lumière virtuelles (30) sont calculés dans une ou plusieurs zones (11) de l'un ou des plusieurs plans d'hologramme virtuels (10). Un champ électromagnétique total virtuel (41) 31082021est respectivement calculé dans l'une ou les plusieurs zones (11) en se basant sur la somme d'au moins deux, notamment de tous les champs électromagnétiques virtuels (40) dans la zone (11) correspondante. Une ou plusieurs images de phase (50) sont calculées à partir des champs électromagnétiques totaux virtuels (41) 31082021dans l'une ou les plusieurs zones (11). Un profil de hauteur (sa) de l'hologramme (1) est calculé à partir de l'une ou des plusieurs images de phase (50) et le profil de hauteur (sa) de l'hologramme (1) est incorporé dans un substrat (2) en vue de fournir l'hologramme (1).
MA42220A 2017-09-06 2018-04-11 Procédé de fabrication d'un hologramme ainsi qu'un élément de sécurité et un document de sécurité MA42220B2 (fr)

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DE102017120536.5A DE102017120536B4 (de) 2017-09-06 2017-09-06 Verfahren zur Herstellung eines Hologramms, sowie ein Sicherheitselement und ein Sicherheitsdokument

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EP (1) EP3679428A1 (fr)
JP (1) JP2020532767A (fr)
AU (1) AU2018327592B2 (fr)
DE (1) DE102017120536B4 (fr)
MA (1) MA42220B2 (fr)
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JP2020532767A (ja) 2020-11-12
RU2020112484A (ru) 2021-10-06
US11679616B2 (en) 2023-06-20
AU2018327592B2 (en) 2024-02-15
US20230286312A1 (en) 2023-09-14
US20200384791A1 (en) 2020-12-10
AU2018327592A1 (en) 2020-03-12
EP3679428A1 (fr) 2020-07-15
DE102017120536A1 (de) 2019-03-07
RU2020112484A3 (fr) 2021-12-30
MA42220A1 (fr) 2019-10-31
DE102017120536B4 (de) 2023-12-14

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