IN2014DN08948A - - Google Patents

Download PDF

Info

Publication number
IN2014DN08948A
IN2014DN08948A IN8948DEN2014A IN2014DN08948A IN 2014DN08948 A IN2014DN08948 A IN 2014DN08948A IN 8948DEN2014 A IN8948DEN2014 A IN 8948DEN2014A IN 2014DN08948 A IN2014DN08948 A IN 2014DN08948A
Authority
IN
India
Prior art keywords
refractive index
high refractive
layer
index layer
diffraction
Prior art date
Application number
Inventor
Phei Lok
Gary Fairless Power
Benjamin Stevens
Original Assignee
Innovia Security Pty 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 Innovia Security Pty Ltd filed Critical Innovia Security Pty Ltd
Publication of IN2014DN08948A publication Critical patent/IN2014DN08948A/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
    • B42D25/328—Diffraction gratings; Holograms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
    • G02B5/1819—Plural gratings positioned on the same surface, e.g. array of gratings
    • 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
    • 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
    • B42D15/00—Printed matter of special format or style not otherwise provided for
    • 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
    • B42D25/324—Reliefs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • 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
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/0252—Laminate comprising a hologram layer
    • G03H1/0256—Laminate comprising a hologram layer having specific functional layer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/16—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being a hologram or diffraction grating
    • 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
    • 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
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H1/0011—Adaptation of holography to specific applications for security or authentication
    • G03H2001/0016—Covert holograms or holobjects requiring additional knowledge to be perceived, e.g. holobject reconstructed only under IR illumination
    • 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
    • G03H2001/0027—Being copy-protected against fraudulent replication, e.g. by layering a filter rejecting laser lines
    • 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
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/18—Particular processing of hologram record carriers, e.g. for obtaining blazed holograms
    • G03H2001/187—Trimming process, i.e. macroscopically patterning the hologram
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2250/00—Laminate comprising a hologram layer
    • G03H2250/36—Conform enhancement layer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Accounting & Taxation (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Credit Cards Or The Like (AREA)
  • Holo Graphy (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

An optical security device is disclosed which includes a diffraction layer having a plurality of diffraction elements and a high refractive index layer wherein the high refractive index layer is applied on the diffraction layer such that selected regions of the diffraction layer have the corresponding diffraction elements partially uncovered by the high refractive index layer and other regions are substantially covered by the high refractive index layer. Accordingly the optical security device has a first security feature associated with the diffraction layer and a second security feature associated with the high refractive index layer. An image is viewable from the regions of the high refractive index layer either covertly by placed an index matched item over the device or overtly through selection of the thickness of the high refractive index layer.
IN8948DEN2014 2012-05-10 2013-05-06 IN2014DN08948A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2012100573A AU2012100573B4 (en) 2012-05-10 2012-05-10 An optical security device
PCT/AU2013/000491 WO2013166560A1 (en) 2012-05-10 2013-05-06 An optical security device

Publications (1)

Publication Number Publication Date
IN2014DN08948A true IN2014DN08948A (en) 2015-05-22

Family

ID=46606003

Family Applications (1)

Application Number Title Priority Date Filing Date
IN8948DEN2014 IN2014DN08948A (en) 2012-05-10 2013-05-06

Country Status (11)

Country Link
US (1) US9904249B2 (en)
CN (1) CN104380191B (en)
AU (2) AU2012100573B4 (en)
BR (1) BR112014027662A2 (en)
CH (1) CH708296B1 (en)
DE (1) DE112013002063T5 (en)
FR (1) FR2990521B1 (en)
GB (1) GB2515949B (en)
IN (1) IN2014DN08948A (en)
MX (1) MX2014013655A (en)
WO (1) WO2013166560A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016141422A1 (en) * 2015-03-06 2016-09-15 Innovia Security Pty Ltd Diffractive device producing angle dependent effects
AU2016100402B4 (en) * 2016-04-13 2017-08-17 Ccl Secure Pty Ltd Micro-optic device with integrated focusing element and image element structure
CN113156792B (en) * 2021-02-09 2022-03-18 北京理工大学 Translation holographic multiplexing method based on cascade metasurfaces
DE102021001588A1 (en) * 2021-03-25 2022-09-29 Giesecke+Devrient Currency Technology Gmbh Manufacturing process for an optically variable security element

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0015871D0 (en) * 2000-06-28 2000-08-23 Rue De Int Ltd A security device
AU2003222821A1 (en) * 2002-05-14 2003-11-11 Kurz Leonhard Fa Optically variable element comprising a partially transparent element
ES2654150T3 (en) * 2005-05-18 2018-02-12 Visual Physics, Llc Imaging system and micro-optical security
GB0613306D0 (en) * 2006-07-04 2006-08-16 Rue De Int Ltd Security device
GB2454752B (en) * 2007-11-19 2012-05-23 Rue De Int Ltd Improvements in security devices
US8498033B2 (en) * 2008-09-05 2013-07-30 Jds Uniphase Corporation Optical device exhibiting color shift upon rotation
CA2811165A1 (en) * 2010-09-29 2012-04-05 Basf Se Security element

Also Published As

Publication number Publication date
WO2013166560A1 (en) 2013-11-14
MX2014013655A (en) 2015-02-05
CH708296B1 (en) 2017-05-31
AU2013258882B2 (en) 2017-03-02
FR2990521B1 (en) 2017-03-17
AU2012100573B4 (en) 2013-03-28
BR112014027662A2 (en) 2017-06-27
US20150109647A1 (en) 2015-04-23
FR2990521A1 (en) 2013-11-15
CN104380191B (en) 2018-07-13
AU2012100573A4 (en) 2012-06-07
GB2515949B (en) 2018-12-05
GB2515949A (en) 2015-01-07
US9904249B2 (en) 2018-02-27
CN104380191A (en) 2015-02-25
AU2013258882A1 (en) 2015-01-15
GB201418596D0 (en) 2014-12-03
DE112013002063T5 (en) 2014-12-31

Similar Documents

Publication Publication Date Title
MTP4305B (en) Optically variable device
EP4249965A3 (en) Display system with optical elements for in-coupling multiplexed light streams
CA2882777C (en) Security element and security document
CA2877980C (en) Security devices
MX2017014794A (en) Combination microlens optical device.
GB2505724A (en) Security document with integrated security device and method of manufacture
GB2574995A (en) An optical security device and method of manufacture
GB2517377A (en) Optically variable colour image
HK1171208A1 (en) Parallax effect security element
MX348331B (en) Picture gesture authentication.
TW201614271A (en) Microlens array substrate, electrooptical device including microlens array substrate, projection type display apparatus, and manufacturing method of microlens array substrate
WO2014144403A3 (en) Optical system for head-up and near-to-eye displays
EP4235637A3 (en) An optical device that produces flicker-like optical effects
GB2495686A (en) Multichannel opticallly variable device
IN2014DN08948A (en)
GB2525798A (en) Security device with covert images
GB2559076A (en) Method of manufacturing a security document
WO2014014853A3 (en) Dynamic focus for conversation visualization environments
GB2550821A (en) Diffractive optical element including two selectable images
MX2016006749A (en) Security device for security document.
WO2012153967A3 (en) Privacy film
AU2015100575B4 (en) Security Device with Non-diffractive Switching Image
MX359910B (en) Improved designs for integrated computational elements.
MX2016006760A (en) Security device for security document.
TW201612640A (en) Photosensitive black resin composition, method for producing black cured film, color filter, and organic electroluminescence display device