EP0746781A4 - Multiple image diffractive device - Google Patents

Multiple image diffractive device

Info

Publication number
EP0746781A4
EP0746781A4 EP19940920339 EP94920339A EP0746781A4 EP 0746781 A4 EP0746781 A4 EP 0746781A4 EP 19940920339 EP19940920339 EP 19940920339 EP 94920339 A EP94920339 A EP 94920339A EP 0746781 A4 EP0746781 A4 EP 0746781A4
Authority
EP
European Patent Office
Prior art keywords
multiple image
diffractive device
image diffractive
image
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.)
Withdrawn
Application number
EP19940920339
Other languages
German (de)
French (fr)
Other versions
EP0746781A1 (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
Application filed by Commonwealth Scientific and Industrial Research Organization CSIRO filed Critical Commonwealth Scientific and Industrial Research Organization CSIRO
Publication of EP0746781A4 publication Critical patent/EP0746781A4/en
Publication of EP0746781A1 publication Critical patent/EP0746781A1/en
Withdrawn legal-status Critical Current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
    • B42D25/328—Diffraction gratings; Holograms
EP94920339A 1993-07-09 1994-07-08 Multiple image diffractive device Withdrawn EP0746781A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPL988593 1993-07-09
AUPL9885/93 1993-07-09
PCT/AU1994/000381 WO1995002200A1 (en) 1993-07-09 1994-07-08 Multiple image diffractive device

Publications (2)

Publication Number Publication Date
EP0746781A4 true EP0746781A4 (en) 1996-05-28
EP0746781A1 EP0746781A1 (en) 1996-12-11

Family

ID=3777047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94920339A Withdrawn EP0746781A1 (en) 1993-07-09 1994-07-08 Multiple image diffractive device

Country Status (2)

Country Link
EP (1) EP0746781A1 (en)
WO (1) WO1995002200A1 (en)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW275109B (en) * 1993-08-06 1996-05-01 Commw Scient Ind Res Org
TW265421B (en) * 1993-11-23 1995-12-11 Commw Scient Ind Res Org
AU679333B2 (en) * 1994-02-14 1997-06-26 Commonwealth Scientific And Industrial Research Organisation Diffractive device with enhanced anti-copying protection
AUPM382994A0 (en) * 1994-02-14 1994-03-10 Commonwealth Scientific And Industrial Research Organisation Diffractive device with enhanced anti-copying protection
EP0756945A1 (en) * 1995-07-31 1997-02-05 National Bank Of Belgium Colour copy protection of security documents
US5969863A (en) * 1996-01-26 1999-10-19 Electrowatt Technology Innovation Corp. Surface pattern including light-diffracting relief structures
WO2000041124A1 (en) * 1998-12-30 2000-07-13 Chao Liu Invisible graphics context identifying system and fabrication method thereof
GB9929752D0 (en) 1999-12-17 2000-02-09 Secr Defence Textured surface
GB0013379D0 (en) 2000-06-01 2000-07-26 Optaglio Ltd Label and method of forming the same
AU2001260512A1 (en) 2000-06-05 2001-12-17 Optaglio Limited Product verification and authentication system and method
GB0016359D0 (en) 2000-07-03 2000-08-23 Optaglio Ltd Optical apparatus
GB0016354D0 (en) * 2000-07-03 2000-08-23 Optaglio Ltd Optical security device
GB0016356D0 (en) 2000-07-03 2000-08-23 Optaglio Ltd Optical structure
US8174743B2 (en) 2000-07-03 2012-05-08 Optaglio Limited Optical security device
GB0016358D0 (en) 2000-07-03 2000-08-23 Optaglio Ltd Optical device
US7541201B2 (en) 2000-08-30 2009-06-02 Kla-Tencor Technologies Corporation Apparatus and methods for determining overlay of structures having rotational or mirror symmetry
US7317531B2 (en) 2002-12-05 2008-01-08 Kla-Tencor Technologies Corporation Apparatus and methods for detecting overlay errors using scatterometry
US20030002043A1 (en) 2001-04-10 2003-01-02 Kla-Tencor Corporation Periodic patterns and technique to control misalignment
GB0117391D0 (en) * 2001-07-17 2001-09-05 Optaglio Ltd Optical device and method of manufacture
GB0202646D0 (en) 2002-02-05 2002-03-20 Optaglio Ltd Secure hidden data protection optically variable label
DE10254500B4 (en) 2002-11-22 2006-03-16 Ovd Kinegram Ag Optically variable element and its use
RU2344054C2 (en) 2003-07-07 2009-01-20 Коммонвелс Сайнтифик Энд Индастриал Рисеч Организейшен Method of coding latent image
AU2003903502A0 (en) * 2003-07-07 2003-07-24 Commonwealth Scientific And Industrial Research Organisation A method of forming a diffractive authentication device
CZ2004869A3 (en) * 2004-08-06 2006-03-15 Optaglio S. R .O. Method of making three-dimensional picture, diffraction element and method for making thereof
GB0426724D0 (en) 2004-12-06 2005-01-12 Rue De Int Ltd Improved hologram
CN100351675C (en) * 2005-02-04 2007-11-28 中国印钞造币总公司 Method for forming lattice diffraction diagram containg hide image and product made thereby
DE102005027380B4 (en) 2005-06-14 2009-04-30 Ovd Kinegram Ag The security document
JP4675805B2 (en) 2006-03-15 2011-04-27 大日本印刷株式会社 Method for producing hologram recording medium
US20150331160A1 (en) * 2012-12-04 2015-11-19 Sectago Gmbh Security device
CN105339179B (en) * 2013-02-12 2018-06-22 赛克达戈有限公司 Safety device
JP6506737B2 (en) * 2013-04-19 2019-04-24 ネステク ソシエテ アノニム Molded food
US10207531B2 (en) 2013-12-02 2019-02-19 SECTAG GmbH Security device
DE102015110626A1 (en) * 2015-07-01 2017-01-05 Sectago Gmbh Optical safety device
US10451412B2 (en) 2016-04-22 2019-10-22 Kla-Tencor Corporation Apparatus and methods for detecting overlay errors using scatterometry
EP3851883A4 (en) * 2018-09-10 2022-03-30 Toppan Printing Co., Ltd. Display body, transfer foil, adhesive label, and labeled goods
CN113805333A (en) * 2021-08-23 2021-12-17 中山大学 Grating structure design method for double pattern encryption
CN113805332A (en) * 2021-08-23 2021-12-17 中山大学 Multiplex pixel design method for multiple encryption patterns

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH678838A5 (en) * 1989-06-30 1991-11-15 Orell Fuessli Graph Betr Ag Document security marking - has main portion resembling first or second pictures dependent on viewing angle
WO1992022039A1 (en) * 1991-06-05 1992-12-10 Mikoh Pty. Ltd. Optical memories incorporating diffraction gratings

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Publication number Priority date Publication date Assignee Title
CH505394A (en) * 1970-08-05 1971-03-31 Balzers Patent Beteilig Ag Filters for lenses for generating optical images with diffraction phenomena
US4155627A (en) * 1976-02-02 1979-05-22 Rca Corporation Color diffractive subtractive filter master recording comprising a plurality of superposed two-level relief patterns on the surface of a substrate
US4402571A (en) * 1981-02-17 1983-09-06 Polaroid Corporation Method for producing a surface relief pattern
US4737448A (en) * 1986-03-31 1988-04-12 Xerox Corporation Color images formed by multiple diffraction gratings
EP0375833B1 (en) * 1988-12-12 1993-02-10 Landis & Gyr Technology Innovation AG Optically variable planar pattern
US5291317A (en) * 1990-07-12 1994-03-01 Applied Holographics Corporation Holographic diffraction grating patterns and methods for creating the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH678838A5 (en) * 1989-06-30 1991-11-15 Orell Fuessli Graph Betr Ag Document security marking - has main portion resembling first or second pictures dependent on viewing angle
WO1992022039A1 (en) * 1991-06-05 1992-12-10 Mikoh Pty. Ltd. Optical memories incorporating diffraction gratings

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
R.A. LEE: "Generalized curvilinear diffraction gratings IV. Plane singular crossed gratings", OPTICA ACTA, vol. 30, no. 4, 1983, pages 441 - 447, XP000569459 *
R.A. LEE: "Generalized curvilinear diffraction gratings V. Diffraction catastrophes", OPTICA ACTA, vol. 30, no. 4, 1983, pages 449 - 464, XP000569460 *
See also references of WO9502200A1 *

Also Published As

Publication number Publication date
WO1995002200A1 (en) 1995-01-19
EP0746781A1 (en) 1996-12-11

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