MTP4294B - Optically variable device - Google Patents

Optically variable device

Info

Publication number
MTP4294B
MTP4294B MTP0004294A MTP4294A MTP4294B MT P4294 B MTP4294 B MT P4294B MT P0004294 A MTP0004294 A MT P0004294A MT P4294 A MTP4294 A MT P4294A MT P4294 B MTP4294 B MT P4294B
Authority
MT
Malta
Prior art keywords
optically variable
variable device
relief elements
contour lines
refraction
Prior art date
Application number
MTP0004294A
Other languages
English (en)
Inventor
Robert Lee
Original Assignee
Securency Int 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
Priority claimed from AU2010900012A external-priority patent/AU2010900012A0/en
Application filed by Securency Int Pty Ltd filed Critical Securency Int Pty Ltd
Publication of MTP4294B publication Critical patent/MTP4294B/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1828—Diffraction gratings having means for producing variable diffraction
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • 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
    • G03H1/024—Hologram nature or properties
    • G03H1/0244—Surface relief holograms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
MTP0004294A 2010-01-04 2010-12-29 Optically variable device MTP4294B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2010900012A AU2010900012A0 (en) 2010-01-04 Optically variable device

Publications (1)

Publication Number Publication Date
MTP4294B true MTP4294B (en) 2011-09-01

Family

ID=44203225

Family Applications (1)

Application Number Title Priority Date Filing Date
MTP0004294A MTP4294B (en) 2010-01-04 2010-12-29 Optically variable device

Country Status (3)

Country Link
FR (1) FR2954978A1 (fr)
MT (1) MTP4294B (fr)
WO (1) WO2011079347A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011107154A1 (de) * 2011-07-14 2013-01-17 Giesecke & Devrient Gmbh Optisch variables Element, insbesondere Sicherheitselement für einen Datenträger
DE102013001734A1 (de) 2013-01-31 2014-07-31 Giesecke & Devrient Gmbh Sicherheitselement mit rinnen- oder rippenförmigen Strukturelementen
US20140268327A1 (en) 2013-03-15 2014-09-18 Opsec Security Group, Inc. Optically variable device exhibiting non-diffractive three-dimensional optical effect
GB201410620D0 (en) 2014-06-13 2014-07-30 Api Holographics Optically variable element
DE102017106433A1 (de) 2017-03-24 2018-09-27 Ovd Kinegram Ag Sicherheitselement und Verfahren zur Herstellung eines Sicherheitselements

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5105306A (en) * 1989-01-18 1992-04-14 Ohala John J Visual effect created by an array of reflective facets with controlled slopes
AUPR483301A0 (en) * 2001-05-08 2001-05-31 Commonwealth Scientific And Industrial Research Organisation An optical device and methods of manufacture
DE10254500B4 (de) * 2002-11-22 2006-03-16 Ovd Kinegram Ag Optisch variables Element und dessen Verwendung
CZ2004869A3 (cs) * 2004-08-06 2006-03-15 Optaglio S. R .O. Zpusob vytvorení trojrozmerného obrazu, difraktivní prvek a zpusob jeho vytvorení
DE102007039996B4 (de) * 2007-02-07 2020-09-24 Leonhard Kurz Stiftung & Co. Kg Sicherheitselement für ein Sicherheitsdokument und Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
FR2954978A1 (fr) 2011-07-08
WO2011079347A1 (fr) 2011-07-07

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