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1. 发明申请

US20230121024A1 MULTIFUNCTION SECURITY ELEMENT 有权
公开(公告)号：US20230121024A1
公开(公告)日：2023-04-20
申请号：US17596406
申请日：2020-06-30
申请人： FASE S.R.L.
发明人： Orazio AUDINO , Francesco BERARDI , Geremino CAMMISA , Luca CIMATTI
IPC分类号： B42D25/328 , B42D25/351 , B42D25/373 , B42D25/387 , B42D25/445 , B42D25/364 , B42D25/369 , B42D25/47
摘要： A security element includes a first transparent film, on which a holographic layer is formed having a holographic surface structure, a reflective layer arranged in contact with the holographic layer having a pattern of non-transparent regions and transparent regions, a color changing layer, and a photoactive layer having dark regions and transparent regions. In first regions, parts of the non-transparent regions of the reflective layer are not overlapped by the dark regions of the photoactive layer. In second regions, the color changing layer is backed by the dark regions of the photoactive layer. In third regions, the transparent regions of the photoactive layer are at least partly in register with the transparent regions of the reflective layer so that the third regions are continuous when passing from patterns outside the non-transparent regions of the reflective layer to patterns outside the dark regions of the photoactive layer.

2. 发明授权

US11577273B2 Processes for producing optical effects layers 有权
公开(公告)号：US11577273B2
公开(公告)日：2023-02-14
申请号：US17264229
申请日：2019-06-18
申请人： SICPA HOLDING SA
发明人： Neda Nikseresht Ghanepour , Edgar Mueller , Mathieu Schmid , Claude-Alain Despland
IPC分类号： B05D5/06 , B05D3/00 , B42D25/364 , B42D25/369 , C09D4/00 , C09D133/08 , C09D163/00 , H01F1/14 , H01F7/02 , B42D25/23 , B42D25/29 , B44F1/08 , C08K5/56
摘要： The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides processes for optical effect layers (OEL) exhibiting two or more nested indicia using a magnetic assembly comprising i) a soft magnetic plate (x31) comprising a) one or more voids (V) and b) one or more indentations (I) and/or one or more protrusions (P), and ii) one or more dipole magnets (x32).

3. 发明申请

US20220326422A1 DISPLAY MEDIUM, AUTHENTICITY DETERMINATION METHOD, AND ARTICLE INCLUDING DISPLAY MEDIUM 有权
公开(公告)号：US20220326422A1
公开(公告)日：2022-10-13
申请号：US17596908
申请日：2020-06-04
申请人： ZEON CORPORATION
发明人： Yasuhide FUJINO
IPC分类号： G02B5/30 , B42D25/364
摘要： A display medium including a first layer, a second layer, and a third layer, wherein: a part or an entirety of the first layer, a part or an entirety of the second layer, and a part or an entirety of the third layer are stacked in a thickness direction in this order; the first layer is a layer that is capable of reflecting circularly polarized light having a rotation direction D1 and allowing to pass therethrough circularly polarized light having a rotation direction D2, which is a direction opposite to the rotation direction D1; the second layer is a phase difference layer; and the third layer is a layer that is capable of reflecting circularly polarized light whose rotation direction is the rotation direction D1 and allowing to pass therethrough circularly polarized light whose rotation direction is the rotation direction D2.

4. 发明授权

US11317528B2 Electronic badge and housing for the same 有权
公开(公告)号：US11317528B2
公开(公告)日：2022-04-26
申请号：US16445923
申请日：2019-06-19
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Jinggang Wei , Yan Ren , Lei Cao , Pan Ni
IPC分类号： H05K5/02 , H05K5/00 , B42D25/30 , B42D25/364 , B42D25/305 , B42D25/23 , G07F7/08 , G06F1/16 , G06F21/40 , G06F21/33 , G06F21/36 , G06F21/31 , G06F21/41 , G06F21/43 , G06F21/42 , G06F21/35 , G06F21/32 , G06F21/34
摘要： The present disclosure provides an electronic badge and a housing for the same. The housing includes: a rear case defining a main board cavity, and formed with a display opening in communication with the main board cavity and a profile card receiving slot located outside the main board cavity; and a front case detachably disposed on the rear case to enclose the profile card receiving slot or both the display opening and the profile card receiving slot, a portion of the front case opposite the profile card receiving slot or both the display opening and the profile card receiving slot being made of a transparent material.

5. 发明授权

US11225102B2 Security device and method of making thereof 有权
公开(公告)号：US11225102B2
公开(公告)日：2022-01-18
申请号：US16642250
申请日：2018-08-28
申请人： DE LA RUE INTERNATIONAL LIMITED
发明人： John Godfrey , Rebecca Locke , Meagan De La Bastide
IPC分类号： B42D25/324 , B42D25/364 , B42D25/29 , B42D25/351 , B42D25/355 , B42D25/425
摘要： A security device and method of making thereof. The security device includes a colour shifting element that exhibits different colours dependent on the angle of incidence of light impinging upon the colour shifting element, and; an at least partially transparent light control layer covering at least a part of the colour shifting element and including a surface relief adapted to modify the angle of light incident upon the light control layer, wherein; the light control layer includes at least first and second functional regions having different refractive indices such that light incident upon the first functional region impinges upon the colour shifting element at a first angle of incidence, and light incident upon the second functional region impinges upon the colour shifting element at a second, different, angle of incidence.

6. 发明申请

US20220001686A1 OPTICAL DEVICE AND METHOD OF MANUFACTURE THEREOF 有权
公开(公告)号：US20220001686A1
公开(公告)日：2022-01-06
申请号：US17040946
申请日：2019-03-29
申请人： DE LA RUE INTERNATIONAL LIMITED
发明人： Adam LISTER , John GODFREY
IPC分类号： B42D25/324 , G02B5/28 , B42D25/29 , B42D25/351 , B42D25/364 , B42D25/373 , B42D25/425 , B42D25/455
摘要： An optical device is disclosed, comprising; a colour shifting layer that exhibits different colours dependent on the angle of incidence of incident light, and; an array of substantially transparent microstructures covering at least a part of the colour shifting layer and configured to modify the angle of light incident to, and reflected from, the colour shifting layer, said array of microstructures arranged in accordance with a plurality of pixels of a colour image to be exhibited by the optical device, each pixel exhibiting a uniform colour, wherein; the array of microstructures comprises at least first and second sub-arrays of microstructures corresponding to respective first and second colour channels, each sub-array covering an area within a pixel corresponding to the proportion of the respective colour channel within the pixel such that the pixel exhibits the uniform colour, and further wherein; the microstructures of the first sub-array are configured to modify the angle of light incident to, and reflected from, the colour shifting layer in a first manner such that, at a substantially normal viewing angle of the optical device, the first sub array exhibits a base colour and at a first viewing angle of the optical device, the first sub-array exhibits a first colour, wherein said first viewing angle corresponds to viewing the optical device along a direction that is off the normal of the optical device and; the microstructures of the second sub-array are configured to modify the angle of light incident to, and reflected from, the colour shifting layer in a second manner different to the first such that, at a substantially normal viewing angle of the optical device, the second sub-array exhibits said base colour and at said first viewing angle, the second sub-array exhibits a second colour different from the first colour; such that at a substantially normal viewing angle, the optical device exhibits the base colour, and at said first viewing angle, the optical device exhibits the colour image. Methods of manufacturing such optical devices are also disclosed.

7. 发明申请

US20210276359A1 SECURITY ELEMENT COMPRISING A LENTICULAR IMAGE 有权
公开(公告)号：US20210276359A1
公开(公告)日：2021-09-09
申请号：US17261270
申请日：2019-07-09
申请人： GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
发明人： Veronika RACK , André GREGAREK , Annett BAHR
IPC分类号： B42D25/378 , B42D25/324 , B42D25/351 , B42D25/364 , B42D25/435
摘要： A security element for securing security papers, value documents and other data carriers, includes a lens grid image with a lens grid of a plurality of micro lenses and a radiation-sensitive motif layer arranged at a distance from the lens grid. The radiation-sensitive motif layer includes, in one motif region, a multiplicity of transparency regions produced by the action of radiation. The radiation-sensitive motif layer has, at least in the motif region, a color partial layer and a contrast partial layer. The color partial layer includes chromophore effect pigments which appear to be colored against the background of the contrast partial layer and which appear to be transparent without a contrast layer.

8. 发明申请

US20210213772A1 SECURITY MEDIUM PRINTED ON WHICH COLOR CODE FOR SECURITY INFORMATION IS PRINTED USING MAGNETICALLY COLOR TURNABLE PHOTONIC CRYSTAL INK, AND MANUFACTURING METHOD THEREFOR 有权
公开(公告)号：US20210213772A1
公开(公告)日：2021-07-15
申请号：US15733824
申请日：2018-12-26
申请人： NANOBRICK CO., LTD.
发明人： Bo Seung JANG , Jae Hyun Joo
IPC分类号： B42D25/364 , B42D25/369 , B42D25/45 , B42D25/405
摘要： The present invention relates to a security medium in which a color code for security information is printed on the surface of the medium using magnetically color tunable photonic crystal ink (MTX), wherein the color code is a color, pattern, image and/or data printed by the magnetic color variable ink, the color, pattern, image, and/or data are changed and appear, according to an observation angle, and the color, pattern, image and/or data appearing at at least one specific observation angle is information obtained by decoding the color code.

9. 发明申请

US20210115336A1 METHOD FOR MANUFACTURING RESIN THIN FILM STRIPPED PIECES 有权
公开(公告)号：US20210115336A1
公开(公告)日：2021-04-22
申请号：US16982124
申请日：2019-03-26
申请人： ZEON CORPORATION
发明人： Yusuke WARABIMINAMI
IPC分类号： C09K19/04 , C09B67/00 , G02F1/1335 , B42D25/328 , B42D25/364 , B29C59/02
摘要： A method for producing flakes of a resin thin film including: a step (1) of forming a resin thin film on a substrate film to obtain a multilayer film; a step (2) of pressing the multilayer film by a member having a concavo-convex shape to form cracks in the resin thin film; and a step (3) of stripping the resin thin film from the substrate film to obtain flakes. The step (2) is preferably performed with a pressing pressure of 100 MPa or less. The resin thin film is preferably formed of a cured product of a photocurable liquid crystal composition. The resin thin film is preferably a cholesteric resin layer.

10. 发明授权

US10889141B2 Multiple hidden image security device 有权
公开(公告)号：US10889141B2
公开(公告)日：2021-01-12
申请号：US15571302
申请日：2016-05-23
申请人： ROLIC AG
发明人： Reto Genini , Julien Martz , Etienne Berner , Benoit Schill
IPC分类号： G02B5/30 , G02B27/28 , B42D25/364 , B42D25/391 , B42D25/41
摘要： The invention relates to an optical security device with multiple hidden images which become visible by arranging a polarizer above or below the device. Additional images become visible upon rotation of the polarizer. The optical device comprises two patterned optical retarders and a polarizer between the retarders.

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