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1. WO2022126270 - OPTICAL DEVICES COMPRISING MICROLENSES AND LASER-FABRICATED PATTERNS OR OTHER STRUCTURES, THEIR MANUFACTURE AND USE

Publication Number WO/2022/126270
Publication Date 23.06.2022
International Application No. PCT/CA2021/051817
International Filing Date 16.12.2021
IPC
G02B 27/00 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
B42D 25/41 2014.1
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
40Manufacture
405Marking
41using electromagnetic radiation
B42D 25/328 2014.1
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
30Identification or security features, e.g. for preventing forgery
328Diffraction gratings; Holograms
B42D 25/351 2014.1
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
30Identification or security features, e.g. for preventing forgery
351Translucent or partly translucent parts, e.g. windows
G02B 1/04 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made; Optical coatings for optical elements
04made of organic materials, e.g. plastics
G02B 3/00 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3Simple or compound lenses
CPC
B42D 25/328
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
30Identification or security features, e.g. for preventing forgery
328Diffraction gratings; Holograms
B42D 25/351
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
30Identification or security features, e.g. for preventing forgery
351Translucent or partly translucent parts, e.g. windows
B42D 25/41
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
40Manufacture
405Marking
41using electromagnetic radiation
G02B 1/041
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made
04made of organic materials, e.g. plastics
041Lenses
G02B 27/00
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
G02B 3/0056
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3Simple or compound lenses
0006Arrays
0037characterized by the distribution or form of lenses
0056arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
Applicants
  • BANK OF CANADA [CA]/[CA]
  • THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO [CA]/[CA]
Inventors
  • MACPHERSON, Charles Douglas
  • OMRANE, Badr
  • MALMBERG, Sean Magnus
  • HERMAN, Peter
  • HO, Stephen Paulchi
  • ALIMOHAMMADIAN, Ehsan
Agents
  • MEE, Trevor
Priority Data
63/126,74117.12.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) OPTICAL DEVICES COMPRISING MICROLENSES AND LASER-FABRICATED PATTERNS OR OTHER STRUCTURES, THEIR MANUFACTURE AND USE
(FR) DISPOSITIFS OPTIQUES COMPRENANT DES MICROLENTILLES ET DES MOTIFS FABRIQUÉS PAR LASER OU D'AUTRES STRUCTURES, LEUR FABRICATION ET LEUR UTILISATION
Abstract
(EN) Disclosed are optical devices suitable as security devices for document authentication, which comprise at least one array of patterns such as laser‐fabricated patterns, or other structures, optionally formed for example from elongate laser‐modified tracks extending within a document substrate. The patterns are combined with at least one array of microlenses to cause certain optical effects. Also disclosed are the use of such devices for document authentication, and methods for their production.
(FR) L'invention concerne des dispositifs optiques appropriés en tant que dispositifs de sécurité pour l'authentification de documents, qui comprennent au moins un réseau de motifs tels que des motifs fabriqués par laser, ou d'autres structures, éventuellement formées par exemple à partir de pistes allongées par laser s'étendant à l'intérieur d'un substrat de document. Les motifs sont combinés avec au moins un réseau de microlentilles pour provoquer certains effets optiques. La présente invention porte également sur l'utilisation de tels dispositifs pour l'authentification de documents et sur des procédés pour leur production.
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