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    Apparatuses and methods for producing optical effect layers
    1.
    发明授权
    Apparatuses and methods for producing optical effect layers 有权

    公开(公告)号：US11110487B2

    公开(公告)日：2021-09-07

    申请号：US16482680

    申请日：2018-01-17

    Applicant: SICPA HOLDING SA

    Inventor： Edgar Mueller ,  Evgeny Loginov ,  Mathieu Schmid

    IPC: H01F41/16 ,  B05D3/00 ,  B42D25/369 ,  B42D25/41 ,  B05D3/06 ,  B05D5/06 ,  H02K5/173 ,  H02K21/24 ,  B42D25/29

    Abstract: The present invention relates to the field of apparatuses and methods of producing optical effect layers (OEL) comprising magnetically oriented magnetic or magnetizable pigment particles. In particular, the present invention relates to apparatuses comprising a first block (A) comprising a holder (1a) having mounted thereto a stator comprising n magnet-wire coils (1b) disposed in n annular slots of a magnetic-field-guiding stator core (1c), and a second block (B) comprising a casing (4), a rotor protection plate (2), a rotor comprising m permanent magnet poles (3a) of alternating polarity arranged around a circle in or on one side of a rotor disc (3b), and a permanent magnet assembly (PMA) (5), wherein the holder (A) is configured to be removeably fixed to a base of a rotating magnetic orienting cylinder (RMC) or a flatbed (FB) magnetic orienting printing unit and the second block (B) is removeably fixed to the first block (A).

    Devices for producing optical effect layers
    2.
    发明授权
    Devices for producing optical effect layers 有权

    公开(公告)号：US10391519B2

    公开(公告)日：2019-08-27

    申请号：US15101717

    申请日：2014-11-28

    Applicant: SICPA HOLDING SA

    Inventor： Pierre Degott ,  Mathieu Schmid ,  Claude-Alain Despland ,  Evgeny Loginov ,  Edgar Mueller

    IPC: B42D25/40 ,  B42D25/485 ,  B05D3/00 ,  B05D5/06 ,  H01F41/16 ,  B41M3/14

    Abstract: The present invention relates to the field of the protection of value documents and value commercial goods. In particular, the invention relates to methods of making an optical effect layer (OEL) associated with a substrate, the method comprising i) providing a substrate associated with a coating composition comprising magnetic or magnetizable pigment particles; ii) providing a permanent magnet assembly producing a first magnetic field; iii) providing an electromagnet assembly including a winding assembly and drive producing an oscillating or rotating second magnetic field that interacts with the first magnetic field to spin the permanent magnet assembly to rotate the first magnetic field; and iv) applying the first magnetic field while the first magnetic field rotates by spinning of the permanent magnet assembly to aggregately orient the magnetic or magnetizable pigment particles to create the optical effect layer. The invention also relates to apparatuses for creating an OEL.

    OPTICALLY VARIABLE ENTITY AUTHENTICATING DEVICE AND METHOD
    3.
    发明申请
    OPTICALLY VARIABLE ENTITY AUTHENTICATING DEVICE AND METHOD 有权
    光学可变实体认证设备和方法

    公开(公告)号：US20140233033A1

    公开(公告)日：2014-08-21

    申请号：US14347141

    申请日：2012-09-26

    Applicant: SICPA HOLDING SA

    Inventor： Edgar Mueller ,  Pierre Degott ,  Claude-Alain Despland

    IPC: G01J3/46

    CPC classification number: G01J3/46 ,  G07D7/005 ,  G07D7/121 ,  G07D7/128 ,  G07D7/207

    Abstract: Disclosed is a device for the authentication of an optically variable entity exhibiting a color shift with changing viewing-angle, the device comprising a plate of light-refractive material, said plate having two surfaces and an array of light-refracting protrusions or recesses on at least one of said surfaces, and being disposed in said device such as to provide, aside each other, a direct view and a view through said plate onto at least parts of said optically variable entity, said view through said plate being an angularly deflected view, resulting from light refraction at said protrusions or recesses. Further disclosed is a method for authenticating an optically variable entity, as well as the use of a plate having two parallel surfaces and an array of positive or negative light-refracting protrusions or recesses on at least one of said surfaces for authenticating an optically variable entity.

    Abstract translation: 公开了一种用于认证具有改变视角的色移的光学可变实体的装置，该装置包括一个光折射材料板，所述板具有两个表面和一个在其上的光折射突起或凹槽阵列 至少一个所述表面，并且设置在所述装置中，以便通过所述板将所述板的直接视图和视图提供给所述光学可变实体的至少一部分，所述透视图通过所述板是角度偏转的视图 由所述突起或凹陷处的光折射产生。 还公开了一种用于认证光学可变实体的方法，以及使用具有两个平行表面的板和在至少一个所述表面上的正或负折射光的折射或凹陷的阵列，用于认证光学可变实体 。

    Device for producing optical effect layers
    4.
    发明授权
    Device for producing optical effect layers 有权

    公开(公告)号：US12097530B2

    公开(公告)日：2024-09-24

    申请号：US18110080

    申请日：2023-02-15

    Applicant: SICPA HOLDING SA

    Inventor： Evgeny Loginov ,  Mathieu Schmid ,  Edgar Mueller ,  Claude-Alain Despland

    IPC: B05D5/06 ,  B05D3/00 ,  B05D3/06

    CPC classification number: B05D5/065 ,  B05D3/067 ,  B05D3/207

    Abstract: The present invention relates to the field of protecting value documents and value commercial goods against counterfeit and illegal reproduction. In particular, the present invention provides processes for producing optical effect layers (OELs) comprising non-spherical magnetic or magnetizable particles and comprising a motif made of at least two areas made of a single applied and cured layer, said motif being obtained by using a selective curing performed by irradiation with an actinic radiation LED source (x41) comprising an array of individually addressable actinic radiation emitters.

    Optically variable entity authenticating device and method
    7.
    发明授权
    Optically variable entity authenticating device and method 有权
    光学可变实体认证装置及方法

    公开(公告)号：US09228901B2

    公开(公告)日：2016-01-05

    申请号：US14347141

    申请日：2012-09-26

    Applicant: SICPA HOLDING SA

    Inventor： Edgar Mueller ,  Pierre Degott ,  Claude-Alain Despland

    IPC: G01J3/46 ,  G07D7/00 ,  G07D7/12 ,  G07D7/20

    CPC classification number: G01J3/46 ,  G07D7/005 ,  G07D7/121 ,  G07D7/128 ,  G07D7/207

    Abstract: Disclosed is a device for the authentication of an optically variable entity exhibiting a color shift with changing viewing-angle, the device comprising a plate of light-refractive material, said plate having two surfaces and an array of light-refracting protrusions or recesses on at least one of said surfaces, and being disposed in said device such as to provide, aside each other, a direct view and a view through said plate onto at least parts of said optically variable entity, said view through said plate being an angularly deflected view, resulting from light refraction at said protrusions or recesses. Further disclosed is a method for authenticating an optically variable entity, as well as the use of a plate having two parallel surfaces and an array of positive or negative light-refracting protrusions or recesses on at least one of said surfaces for authenticating an optically variable entity.

    Abstract translation: 公开了一种用于认证具有改变视角的色移的光学可变实体的装置，该装置包括一个光折射材料板，所述板具有两个表面和一个在其上的光折射突起或凹槽阵列 至少一个所述表面，并且设置在所述装置中，以便通过所述板将所述板的直接视图和视图提供给所述光学可变实体的至少一部分，所述透视图通过所述板是角度偏转的视图 由所述突起或凹陷处的光折射产生。 还公开了一种用于认证光学可变实体的方法，以及使用具有两个平行表面的板和在至少一个所述表面上的正或负折射光的折射或凹陷的阵列，用于认证光学可变实体 。

    Process for producing optical effect layers
    8.
    发明授权
    Process for producing optical effect layers 有权

    公开(公告)号：US11618053B2

    公开(公告)日：2023-04-04

    申请号：US17422166

    申请日：2019-12-27

    Applicant: SICPA HOLDING SA

    Inventor： Evgeny Loginov ,  Mathieu Schmid ,  Edgar Mueller ,  Claude-Alain Despland

    IPC: B05D5/06 ,  B05D3/06 ,  B05D3/00

    Abstract: The present invention relates to the field of protecting value documents and value commercial goods against counterfeit and illegal reproduction. In particular, the present invention provides processes for producing optical effect layers (OELs) comprising non-spherical magnetic or magnetizable particles and comprising a motif made of at least two areas made of a single applied and cured layer, said motif being obtained by using a selective curing performed by irradiation with an actinic radiation LED source (x41) comprising an array of individually addressable actinic radiation emitters.

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