GB2351159A - Holographic security device - Google Patents

Holographic security device

Info

Publication number
GB2351159A
GB2351159A GB0025925A GB0025925A GB2351159A GB 2351159 A GB2351159 A GB 2351159A GB 0025925 A GB0025925 A GB 0025925A GB 0025925 A GB0025925 A GB 0025925A GB 2351159 A GB2351159 A GB 2351159A
Authority
GB
United Kingdom
Prior art keywords
holographic
security device
interleaved
regions
substantially non
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.)
Granted
Application number
GB0025925A
Other versions
GB2351159B (en
GB0025925D0 (en
Inventor
Brian William Holmes
Kenneth John Drinkwater
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.)
De la Rue International Ltd
Original Assignee
De la Rue International Ltd
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 De la Rue International Ltd filed Critical De la Rue International Ltd
Publication of GB0025925D0 publication Critical patent/GB0025925D0/en
Publication of GB2351159A publication Critical patent/GB2351159A/en
Application granted granted Critical
Publication of GB2351159B publication Critical patent/GB2351159B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • 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
    • G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
    • G03H1/2645—Multiplexing processes, e.g. aperture, shift, or wavefront multiplexing
    • G03H1/265—Angle multiplexing; Multichannel 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
    • B42D25/20—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
    • B42D25/328—Diffraction gratings; Holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • 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
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H1/0011—Adaptation of holography to specific applications for security or authentication
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • 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
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/0236—Form or shape of the hologram when not registered to the substrate, e.g. trimming the hologram to alphanumerical shape
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • 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
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/024—Hologram nature or properties
    • G03H1/0244—Surface relief holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • 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
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G03H1/2249—Holobject properties
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • 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
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H2001/0204—Object characteristics
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • 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
    • G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
    • G03H1/30—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique discrete holograms only
    • G03H2001/303—Interleaved sub-holograms, e.g. three RGB sub-holograms having interleaved pixels for reconstructing coloured holobject
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/20—2D object
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/30—3D object
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/30—3D object
    • G03H2210/32—3D+2D, i.e. composition of 3D and 2D sub-objects, e.g. scene in front of planar background
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/12—Amplitude mask, e.g. diaphragm, Louver filter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00—Printed matter
    • Y10S283/901—Concealed data

Abstract

A holographic security device comprising first and second holographic generating structures (2, 3) recorded in respective sets of substantially non-overlapping regions of a record medium. The regions of one set are interleaved with regions of the other set, whereby both interleaved line structures are substantially non-visible to the unaided eye, whereby the holographic security device generates two or more holographic images (A, B) viewed from separate viewing directions around the device and normally seen by tilting the device. Each particular holographic image in a viewing direction is generated in whole or part by the holographic structure associated with one set of interleaved lines.
GB0025925A 1998-05-14 1999-05-12 Holographic security device Expired - Lifetime GB2351159B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9810399.7A GB9810399D0 (en) 1998-05-14 1998-05-14 Holographic security device
PCT/GB1999/001498 WO1999059036A1 (en) 1998-05-14 1999-05-12 Holographic security device

Publications (3)

Publication Number Publication Date
GB0025925D0 GB0025925D0 (en) 2000-12-06
GB2351159A true GB2351159A (en) 2000-12-20
GB2351159B GB2351159B (en) 2002-02-20

Family

ID=10832077

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9810399.7A Ceased GB9810399D0 (en) 1998-05-14 1998-05-14 Holographic security device
GB0025925A Expired - Lifetime GB2351159B (en) 1998-05-14 1999-05-12 Holographic security device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9810399.7A Ceased GB9810399D0 (en) 1998-05-14 1998-05-14 Holographic security device

Country Status (14)

Country Link
US (1) US6369919B1 (en)
EP (1) EP1078302B8 (en)
AT (1) ATE271233T1 (en)
AU (1) AU735608B2 (en)
BR (1) BR9910476A (en)
CA (1) CA2329936A1 (en)
CZ (1) CZ298525B6 (en)
DE (1) DE69918688T2 (en)
EE (1) EE200000667A (en)
GB (2) GB9810399D0 (en)
RU (1) RU2201613C2 (en)
SK (1) SK16542000A3 (en)
UA (1) UA66860C2 (en)
WO (1) WO1999059036A1 (en)

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Also Published As

Publication number Publication date
AU3839799A (en) 1999-11-29
AU735608B2 (en) 2001-07-12
WO1999059036A1 (en) 1999-11-18
GB9810399D0 (en) 1998-07-15
GB2351159B (en) 2002-02-20
CZ298525B6 (en) 2007-10-24
SK16542000A3 (en) 2001-08-06
US6369919B1 (en) 2002-04-09
UA66860C2 (en) 2004-06-15
ATE271233T1 (en) 2004-07-15
CA2329936A1 (en) 1999-11-18
DE69918688T2 (en) 2004-12-02
EP1078302B8 (en) 2013-03-13
EP1078302A1 (en) 2001-02-28
BR9910476A (en) 2001-01-02
EE200000667A (en) 2002-04-15
RU2201613C2 (en) 2003-03-27
CZ20003969A3 (en) 2001-08-15
EP1078302B1 (en) 2004-07-14
GB0025925D0 (en) 2000-12-06
DE69918688D1 (en) 2004-08-19

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20190511