ATE452769T1 - TRANSPARENT SECURITY ELEMENT AND METHOD FOR PRODUCING IT - Google Patents

TRANSPARENT SECURITY ELEMENT AND METHOD FOR PRODUCING IT

Info

Publication number
ATE452769T1
ATE452769T1 AT06806393T AT06806393T ATE452769T1 AT E452769 T1 ATE452769 T1 AT E452769T1 AT 06806393 T AT06806393 T AT 06806393T AT 06806393 T AT06806393 T AT 06806393T AT E452769 T1 ATE452769 T1 AT E452769T1
Authority
AT
Austria
Prior art keywords
security element
optically active
active layer
wavelength range
producing
Prior art date
Application number
AT06806393T
Other languages
German (de)
Inventor
Winfried Hoffmueller
Theodor Burchard
Thorsten Pillo
Manfred Heim
Original Assignee
Giesecke & 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 & Devrient Gmbh filed Critical Giesecke & Devrient Gmbh
Application granted granted Critical
Publication of ATE452769T1 publication Critical patent/ATE452769T1/en

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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/391—Special inks absorbing or reflecting polarised light
    • 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
    • B42D25/29—Securities; Bank notes
    • 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
    • B42D25/364—Liquid crystals
    • B42D2033/04—
    • B42D2033/26—

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
  • Laminated Bodies (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Glass Compositions (AREA)
  • Materials For Medical Uses (AREA)

Abstract

The invention relates to a double-sided transparent security element (20) for protection of valuable objects having motifs in the form of patterns, characters or codings introduced into the security element, comprising a first optically active layer (24) composed of a cholesteric liquid-crystal material, which selectively reflects light with a predetermined circular polarization in a predetermined wavelength range, and a second (22) and third (26) optically active layer, which are arranged on both sides of the first optically active layer (24) and each form a phase-shifting layer for light from the predetermined wavelength range. The second and third optically active layers (22, 26) in this case contain motifs which are independent of one another, in order to verify the security element (20) from opposite sides.
AT06806393T 2005-11-03 2006-10-19 TRANSPARENT SECURITY ELEMENT AND METHOD FOR PRODUCING IT ATE452769T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005052928A DE102005052928A1 (en) 2005-11-03 2005-11-03 See-through security element and method for its manufacture
PCT/EP2006/010087 WO2007051529A1 (en) 2005-11-03 2006-10-19 Transparent security element and method for its production

Publications (1)

Publication Number Publication Date
ATE452769T1 true ATE452769T1 (en) 2010-01-15

Family

ID=37719428

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06806393T ATE452769T1 (en) 2005-11-03 2006-10-19 TRANSPARENT SECURITY ELEMENT AND METHOD FOR PRODUCING IT

Country Status (4)

Country Link
EP (1) EP1945465B1 (en)
AT (1) ATE452769T1 (en)
DE (2) DE102005052928A1 (en)
WO (1) WO2007051529A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2893424B1 (en) 2005-11-16 2008-01-25 Arjowiggins Soc Par Actions Si OPTICAL STRUCTURE, IN PARTICULAR FOR A DOCUMENT OF SECURITY AND / OR VALUE.
DE102007022264A1 (en) 2007-05-09 2008-11-13 Leonhard Kurz Gmbh & Co. Kg Foil element with polymer layer
DE102007061827A1 (en) 2007-12-20 2009-06-25 Giesecke & Devrient Gmbh Security element and method for its production
DE102007061828A1 (en) * 2007-12-20 2009-06-25 Giesecke & Devrient Gmbh Security element and method for its production
DE102008009296A1 (en) 2008-02-15 2009-08-20 Giesecke & Devrient Gmbh Security element and method for its production
DE102008013167A1 (en) 2008-03-07 2009-09-10 Giesecke & Devrient Gmbh Security element and method for its production
IT1392435B1 (en) * 2008-12-23 2012-03-09 Luxottica Srl MULTILAYER FILM DEPICTING A BIDIMENSIONAL COLORED IMAGE ONLY VISIBLE THROUGH A POLARIZED FILTER AND PROCEDURE TO REALIZE IT.
IT1392436B1 (en) * 2008-12-23 2012-03-09 Luxottica Srl MULTILAYER FILM DEPICTING A BIDIMENSIONAL COLORED IMAGE ONLY VISIBLE THROUGH A POLARIZED FILTER AND PROCEDURE TO REALIZE IT.
DE102009052792A1 (en) * 2009-11-11 2011-05-12 Giesecke & Devrient Gmbh Method for producing a security element with matched metallizations and security element available therefrom
EP3304142A1 (en) * 2015-05-26 2018-04-11 ROLIC Technologies AG Optical security device
AU2016267565B2 (en) * 2015-05-26 2021-08-12 Rolic Ag Multiple hidden image security device
EA035961B1 (en) * 2019-06-28 2020-09-07 Закрытое Акционерное Общество "Голографическая Индустрия" Method for production of transparent inserts for fraud protection of identification cards and polycarbonate sheets of biometric passports

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU488652B2 (en) 1973-09-26 1976-04-01 Commonwealth Scientific And Industrial Research Organisation Improvements in or relating to security tokens
DE3942663A1 (en) 1989-12-22 1991-06-27 Gao Ges Automation Org DATA CARRIER WITH A LIQUID CRYSTAL SECURITY ELEMENT
ES2392342T3 (en) * 1997-05-09 2012-12-07 Rolic Ag Optical element comprising a structured retarder
US6496287B1 (en) * 1998-04-09 2002-12-17 Rolic Ag Optical identification element
JP4335352B2 (en) * 1999-03-05 2009-09-30 大日本印刷株式会社 Anti-counterfeit body and forgery discrimination method
EP1120737A1 (en) * 2000-01-27 2001-08-01 Rolic AG Optical security device
AUPR627201A0 (en) * 2001-07-09 2001-08-02 Commonwealth Scientific And Industrial Research Organisation An optically variable device and a method of producing an optically variable device
JP4392826B2 (en) * 2003-05-16 2010-01-06 日本発條株式会社 Object identification medium and identification method

Also Published As

Publication number Publication date
WO2007051529A1 (en) 2007-05-10
DE502006005751D1 (en) 2010-02-04
EP1945465A1 (en) 2008-07-23
EP1945465B1 (en) 2009-12-23
DE102005052928A1 (en) 2007-05-16

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