CA2168772C - A diffractive device - Google Patents

A diffractive device Download PDF

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Publication number
CA2168772C
CA2168772C CA002168772A CA2168772A CA2168772C CA 2168772 C CA2168772 C CA 2168772C CA 002168772 A CA002168772 A CA 002168772A CA 2168772 A CA2168772 A CA 2168772A CA 2168772 C CA2168772 C CA 2168772C
Authority
CA
Canada
Prior art keywords
tracks
track
image
diffractive device
diffractive
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 - Fee Related
Application number
CA002168772A
Other languages
English (en)
French (fr)
Other versions
CA2168772A1 (en
Inventor
Robert Arthur Lee
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.)
Commonwealth Scientific and Industrial Research Organization CSIRO
Original Assignee
Commonwealth Scientific and Industrial Research Organization CSIRO
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27157737&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2168772(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from AUPM4867A external-priority patent/AUPM486794A0/en
Application filed by Commonwealth Scientific and Industrial Research Organization CSIRO filed Critical Commonwealth Scientific and Industrial Research Organization CSIRO
Publication of CA2168772A1 publication Critical patent/CA2168772A1/en
Application granted granted Critical
Publication of CA2168772C publication Critical patent/CA2168772C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1842—Gratings for image generation
    • 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
    • B42D25/328—Diffraction gratings; Holograms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Holo Graphy (AREA)
  • Cereal-Derived Products (AREA)
  • Eye Examination Apparatus (AREA)
  • Massaging Devices (AREA)
  • Window Of Vehicle (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Credit Cards Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
CA002168772A 1993-08-06 1994-08-04 A diffractive device Expired - Fee Related CA2168772C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
AUPM0387 1993-08-06
AUPM038793 1993-08-06
AUPM111293 1993-09-10
AUPM1112 1993-09-10
AUPM4867A AUPM486794A0 (en) 1994-04-07 1994-04-07 A diffractive device
AUPM4867 1994-04-07
PCT/AU1994/000441 WO1995004948A1 (en) 1993-08-06 1994-08-04 A diffractive device

Publications (2)

Publication Number Publication Date
CA2168772A1 CA2168772A1 (en) 1995-02-16
CA2168772C true CA2168772C (en) 2004-10-26

Family

ID=27157737

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002168772A Expired - Fee Related CA2168772C (en) 1993-08-06 1994-08-04 A diffractive device

Country Status (8)

Country Link
US (1) US5825547A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (2) EP0712500B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH09502277A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (2) ATE201512T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA2168772C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (4) DE766103T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
TW (1) TW275109B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO1995004948A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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DE102005061749A1 (de) 2005-12-21 2007-07-05 Giesecke & Devrient Gmbh Optisch variables Sicherheitselement und Verfahren zu seiner Herstellung
JP4675805B2 (ja) 2006-03-15 2011-04-27 大日本印刷株式会社 ホログラム記録媒体の作成方法
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EP3236299B1 (en) 2008-09-05 2024-07-03 Viavi Solutions Inc. An optical device exhibiting color shift upon rotation
CH703994B1 (fr) 2009-08-10 2016-09-15 Innovia Security Pty Ltd Dispositifs à effet optique variable et méthode de fabrication.
DE102010047250A1 (de) 2009-12-04 2011-06-09 Giesecke & Devrient Gmbh Sicherheitselement, Wertdokument mit einem solchen Sicherheitselement sowie Herstellungsverfahren eines Sicherheitselementes
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DE102011108242A1 (de) 2011-07-21 2013-01-24 Giesecke & Devrient Gmbh Optisch variables Element, insbesondere Sicherheitselement
EP2782765B1 (de) * 2012-12-04 2015-12-02 Sectago GmbH Sicherheitseinrichtung
WO2014124781A1 (de) * 2013-02-12 2014-08-21 Sectago Gmbh Sicherheitseinrichtung
CN103895374B (zh) * 2013-11-01 2016-09-14 中钞油墨有限公司 具有光变结构的防伪图纹及其制备方法
US10207531B2 (en) 2013-12-02 2019-02-19 SECTAG GmbH Security device
TW201638520A (zh) * 2015-04-30 2016-11-01 億城精密光電股份有限公司 可隨視角變化光型的燈具
JP2018529527A (ja) * 2015-10-07 2018-10-11 コーニング インコーポレイテッド レーザー切断する予定の被覆基板をレーザーで前処理する方法
DE102017106433A1 (de) 2017-03-24 2018-09-27 Ovd Kinegram Ag Sicherheitselement und Verfahren zur Herstellung eines Sicherheitselements
DE102017003281A1 (de) 2017-04-04 2018-10-04 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit Reliefstruktur und Herstellungsverfahren hierfür
DE102017120536B4 (de) 2017-09-06 2023-12-14 Ovd Kinegram Ag Verfahren zur Herstellung eines Hologramms, sowie ein Sicherheitselement und ein Sicherheitsdokument

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Also Published As

Publication number Publication date
DE69428901D1 (de) 2001-12-06
DE712500T1 (de) 1997-09-11
EP0766103A1 (en) 1997-04-02
ATE201512T1 (de) 2001-06-15
DE69427308T2 (de) 2001-09-06
CA2168772A1 (en) 1995-02-16
ATE208049T1 (de) 2001-11-15
EP0712500A1 (en) 1996-05-22
WO1995004948A1 (en) 1995-02-16
EP0712500B1 (en) 2001-10-31
DE69427308D1 (de) 2001-06-28
EP0712500A4 (en) 1996-12-11
DE766103T1 (de) 1997-09-11
TW275109B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1996-05-01
EP0766103B1 (en) 2001-05-23
JPH09502277A (ja) 1997-03-04
DE69428901T2 (de) 2002-06-27
US5825547A (en) 1998-10-20

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Effective date: 20130806