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公开(公告)号：US10242788B2
公开(公告)日：2019-03-26
申请号：US15601439
申请日：2017-05-22
Applicant: Viavi Solutions Inc.
Inventor： Vladimir P. Raksha , Charles T. Markantes , Paul G. Coombs , Roger W. Phillips , Paul T. Kohlmann , Alberto Argoitia , Neil Teitelbaum
IPC: H01F10/08 , C09D5/33 , C09D11/50 , B42D25/328 , C09D201/00 , B42D25/29 , C09C1/00 , C09D11/037 , B42D25/369 , B82Y30/00 , H01F1/00 , C09D7/40 , H01F41/16
Abstract: The invention relates to anisotropic, reflective, magnetic flakes. In a liquid carrier and under influence of an external magnetic field, the flakes attract to one another side-by-side and form ribbons which provide higher reflectivity to a coating and may be used as a security feature for authentication of an object.
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公开(公告)号：US10031269B2
公开(公告)日：2018-07-24
申请号：US15283917
申请日：2016-10-03
Applicant: VIAVI SOLUTIONS INC.
Inventor： Charles T. Markantes , Cornelis Jan Delst , Vladimir P. Raksha , David De La Fuente , Paul G. Coombs
IPC: C01B21/064 , G02B5/28 , G02B5/00
Abstract: In a plurality of asymmetric color-shifting flakes, each flake has an asymmetric magnetic core with a magnetic layer visible on the first side of the core and a non-magnetic reflector layer on the magnetic layer, visible on the second side of the core. The flake has a spacer layer and an absorber layer on the first side of the core, and also a spacer layer and an absorber layer on the second side of the core, for providing color shifting effects. The material of the magnetic layer is different from the material of the reflector layer, and may be more stable when exposed to a chemical. When a coating with the asymmetric color-shifting flakes is exposed to the chemical, it may have better optical performance than a coating with symmetric color-shifting flakes.
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公开(公告)号：US10029279B2
公开(公告)日：2018-07-24
申请号：US15406590
申请日：2017-01-13
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. Raksha
Abstract: A method is provided for manufacturing an image on a substrate, wherein the image includes an indicia and a frame. The method includes covering at least a portion the substrate with a carrier comprising magnetically alignable flakes, aligning the magnetically alignable flakes with a magnetic field of a magnetic assembly comprising a metal plate with an opening, and solidifying the carrier. The frame is formed at an edge of the opening and the indicia is visible within the frame. The magnetic assembly includes two magnets disposed so that the North pole of one magnet and the South pole of another magnet are proximate to the metal plate at opposite sides of the opening.
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公开(公告)号：US20170056902A1
公开(公告)日：2017-03-02
申请号：US15350021
申请日：2016-11-12
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. Raksha , Paul G. Coombs , Charles T. Markantes
IPC: B05B7/02 , B42D25/29 , B41M3/14 , B42D25/369
CPC classification number: B41M1/00 , B05B5/00 , B05B7/02 , B05D3/207 , B05D5/06 , B05D5/061 , B41F11/02 , B41F23/00 , B41M3/00 , B41M3/14 , B41M5/00 , B41P2200/30 , B42D25/29 , B42D25/369 , B42D2033/16 , B42D2035/20
Abstract: The invention relates to a method of aligning magnetic flakes, which includes: coating a substrate with a carrier having the flakes dispersed therein, moving the substrate in a magnetic field so as to align the flakes along force lines of the magnetic field in the absence of an effect from a solidifying means, and at least partially solidifying the carrier using a solidifying means while further moving the substrate in the magnetic field so as to secure the magnetic flakes in the carrier while the magnetic field maintains alignment of the magnetic flakes. An apparatus is provided, which has a belt for moving a substrate along a magnet assembly for aligning magnetic flakes. The apparatus also includes a solidifying means, such as a UV- or e-beam source, and a cover above a portion of the magnet assembly for protecting the flakes from the effect of the solidifying means.
Abstract translation: 本发明涉及一种对准磁性薄片的方法，其包括：用分散在其中的薄片的载体涂覆基材，使基板在磁场中移动，以使薄片沿着磁场的力线在不存在 凝固装置的效果，并且使用凝固装置至少部分地固化载体，同时在磁场中进一步移动基板，以便在磁场保持磁性薄片的对准的同时将磁性薄片固定在载体中。 提供了一种装置，其具有用于沿着用于对准磁片的磁体组件移动基板的带。 该设备还包括固化装置，例如UV或电子束源，以及在磁体组件的一部分上方的盖，用于保护薄片免受固化装置的影响。
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公开(公告)号：US12083813B2
公开(公告)日：2024-09-10
申请号：US17507516
申请日：2021-10-21
Applicant: VIAVI SOLUTIONS INC.
Inventor： Cornelis Jan Delst , Vladimir P. Raksha , Alberto Argoitia , Paul Thomas Kohlmann
Abstract: A printing machine including a printing plate on a surface of a rotating cylinder, in which the printing plate has a fixed pattern for receiving a toner; a vessel containing the toner, which includes a pigment and a thermoplastic binder, in which the fixed pattern is a permanent pattern in a form of selected portions of an image is disclosed. A plate for use in the printing machine is also disclosed. A printing system is also disclosed.
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Patent Agency Ranking
公开(公告)号：US12064987B2
公开(公告)日：2024-08-20
申请号：US16857845
申请日：2020-04-24
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. Raksha , Cornelis Jan Delst , Paul G. Coombs
IPC: B42D25/369 , B42D25/328 , B42D25/29
CPC classification number: B42D25/369 , B42D25/328 , B42D25/29
Abstract: An optical device comprising a structured substrate; a reflective layer on the structured substrate; and a coating with magnetic flakes on the reflective layer is disclosed. A method of making and using an optical device is also disclosed.
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公开(公告)号：US11945255B2
公开(公告)日：2024-04-02
申请号：US17839013
申请日：2022-06-13
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. Raksha , Cornelis Jan Delst
IPC: B42D25/369 , B42D25/40
CPC classification number: B42D25/369 , B42D25/40
Abstract: An assembly including a first magnet; a substrate positioned above the first magnet, and having a surface for receiving a composition including a plurality of magnetizable platelets; and a second magnet, positioned above the substrate is disclosed. The assembly can be used in a method of making an optical security element. The optical security element and the method of making the optical security element are also disclosed.
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公开(公告)号：US11441041B2
公开(公告)日：2022-09-13
申请号：US16653479
申请日：2019-10-15
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. Raksha , Paul T. Kohlmann , Cornelis Jan Delst , Paul G. Coombs
IPC: C09D7/62 , H01F1/01 , C09C1/00 , H01F1/28 , C09D5/32 , C09D11/037 , C09D7/40 , C09D17/00 , H01F1/03 , H01F1/26
Abstract: The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.
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公开(公告)号：US10752042B2
公开(公告)日：2020-08-25
申请号：US16372041
申请日：2019-04-01
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. Raksha , John Hynes , Laurence Holden , Paul G. Coombs
IPC: B42D25/369 , B42D25/00 , C09D7/61 , B42D25/342 , H01F41/02 , B42D25/378 , B42D25/41 , B44F1/10 , B05D3/00 , B05D5/06 , C09D5/29 , C09D5/36 , B41M3/14 , C09D11/00 , B41M7/00 , B44F1/02 , B42D25/29
Abstract: An article includes a substrate and a graphical component forming an image and an optical component which includes magnetic pigment flakes aligned so as to form a frame pattern which surrounds the image. When light is incident upon the pigment flakes from a light source, light reflected from the frame pattern forms a dynamic frame which surrounds the image and appears to move as the substrate is tilted with respect to the light source. The image appears to be stationary when the dynamic frame appears to move.
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公开(公告)号：US10173455B2
公开(公告)日：2019-01-08
申请号：US14986293
申请日：2015-12-31
Applicant: Viavi Solutions Inc.
Inventor： Vladimir P. Raksha , Paul G. Coombs , Charles T. Markantes , Alberto Argoitia , Roger W. Phillips
Abstract: A printed image is disclosed wherein the image may be in the form of an array of magnetically aligned platelets or flakes that may by uniform in shape and size and wherein the flakes are arranged in a particularly manner to form optically illusive images useful as security devices, or useful in beam steering applications. In one embodiment of this invention printed array is disclosed a plurality of concentric rings of magnetically aligned platelets disposed upon a substrate in the form of a Fresnel structure, preferably a Fresnel reflector. Advantageously, since the magnetic field can be controlled with respect to strength and direction, one can easily design a field that will correct for spherical aberration that would otherwise be present in a typical Fresnel reflector. In other embodiments of the invention optically illusive images of funnels, domes and cones are printed.
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