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公开(公告)号：US20220056238A1
公开(公告)日：2022-02-24
申请号：US17516418
申请日：2021-11-01
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. RAKSHA , Cornelis Jan Delst
IPC: C08K3/01 , B05D3/00 , B05D5/06 , B05D3/06 , B42D25/369 , B42D25/41 , C09D5/23 , C09D7/40 , B41M7/00 , C08K7/00
Abstract: According to examples, a substrate may be moved through a magnetic field, in which the substrate includes a fluid carrier containing magnetically-orientable flakes. The magnetic field may influence the magnetically-orientable flakes to be respectively oriented in one of multiple orientations. In addition, during movement of the substrate through the magnetic field, radiation may be applied onto a plurality of selected portions of the fluid carrier through at least one opening in a mask to cure the fluid carrier at the plurality of selected portions and fix the magnetically-orientable flakes in the plurality of selected portions at the respective angular orientations as influenced by the magnetic field.
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公开(公告)号：US11186110B2
公开(公告)日：2021-11-30
申请号：US16330027
申请日：2017-08-31
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir Raksha , Cornelis Jan Delst
Abstract: According to examples, an article may include a base layer that extends along a first dimension and a second dimension, in which the second dimension is orthogonal to the first dimension. The article may also include reflective ribbons provided on an upper surface of the base layer, in which the reflective ribbons positioned along a common plane extending in the second dimension have dihedral angles that change as a function of distance across the common plane.
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公开(公告)号：US10597538B2
公开(公告)日：2020-03-24
申请号：US15673480
申请日：2017-08-10
Applicant: Viavi Solutions Inc.
Inventor： Cornelis Jan Delst , Alberto Argoitia
Abstract: A diffractive pigment blend or composition is provided which includes a plurality of groups of all-dielectric diffractive pigment flakes. The pigment flakes of each group each include one or more dielectric layers for providing a background color, at least one of which includes a diffractive structure for providing a diffractive effect. Each group of pigment flakes provides a different diffractive effect, and the diffractive pigment blend or composition provides a combined diffractive effect that is a combination of the different diffractive effects. The combined diffractive effect may be a neutral white diffractive effect or may include a reversal in color travel.
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公开(公告)号：US09827805B2
公开(公告)日：2017-11-28
申请号：US14710108
申请日：2015-05-12
Applicant: Viavi Solutions Inc.
Inventor： Alberto Argoitia , Cornelis Jan Delst , Patrick Laden
IPC: B42D25/369 , B05D3/00 , H01F7/02 , B05D5/06 , B05D1/16
CPC classification number: B42D25/369 , B05D1/16 , B05D3/20 , B05D3/203 , B05D5/065 , B05D2451/00 , H01F7/0273 , Y10T428/24802 , Y10T428/24893 , B05D2401/40 , B05D2401/32
Abstract: An optically variable device may be manufactured by aligning magnetic flakes on a surface of an adhesive layer by applying the flakes onto the adhesive layer surface in presence of a magnetic field, and curing the adhesive layer having magnetic flakes adhered to the adhesive layer. When cured, the adhesive layer holds the magnetic flakes oriented, enabling subsequent encapsulation of the oriented magnetic flakes in a coating layer on the adhesive layer, without a substantial loss of orientation of the magnetic flakes.
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公开(公告)号：US09796856B2
公开(公告)日：2017-10-24
申请号：US14043497
申请日：2013-10-01
Applicant: Viavi Solutions Inc.
Inventor： Cornelis Jan Delst , Vladimir P. Raksha , David de la Fuente
CPC classification number: C09C3/04 , C01P2006/65 , C01P2006/66 , C09C1/0015 , C09C1/0078 , C09C1/0081
Abstract: A colorant including a mixture of pigments is disclosed. The pigments have a similar coloration but different resistance to corrosion. The mixing ratio is selected to optimize the corrosion resistance against color brightness, and/or acidic corrosion resistance against alkali corrosion resistance of the colorant.
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Patent Agency Ranking
公开(公告)号：US09508475B2
公开(公告)日：2016-11-29
申请号：US13733792
申请日：2013-01-03
Applicant: Viavi Solutions Inc.
Inventor： Vladimir P. Raksha , Paul T. Kohlmann , Cornelis Jan Delst , Paul G. Coombs
CPC classification number: C09D7/62 , C01P2004/54 , C01P2004/61 , C01P2006/42 , C01P2006/60 , C09C1/0015 , C09C2200/1054 , C09C2210/00 , C09D5/32 , C09D7/70 , C09D11/037 , C09D17/004 , H01F1/01 , H01F1/0306 , H01F1/26 , H01F1/28
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.
Abstract translation: 本发明提供一种对人体健康和环境相对安全的磁性多层颜料薄片和磁性涂料组合物。 颜料薄片包括磁性合金的一个或多个磁性层和介电材料的一个或多个电介质层。 磁性合金是铁 - 铬合金或铁 - 铬 - 铝合金，其具有基本上不含镍的组成。 涂料组合物包括设置在粘合剂介质中的多个颜料薄片。
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公开(公告)号：US11680175B2
公开(公告)日：2023-06-20
申请号：US16702191
申请日：2019-12-03
Applicant: VIAVI SOLUTIONS INC.
Inventor： Cornelis Jan Delst , Paul Thomas Kohlmann
IPC: C09D5/29 , B42D25/369 , B42D25/378 , B42D25/373
CPC classification number: C09D5/29 , B42D25/369 , B42D25/378 , B42D25/373
Abstract: A composition including a first color shifting pigment having a first color shift that extends from a starting color at normal through a plurality of colors as a viewing angle is increased to a final color, wherein the first color shift rotates counterclockwise relative to, and about, an origin of the L*a*b* color space; and a color filter that transmits a portion of the first color shift of the first color shifting pigment and absorbs a remainder of the first color shift of the first color shifting pigment; wherein the composition has a second color shift different from the first color shift; and wherein the second color shift has a first portion that rotates counterclockwise relative to the origin and a second portion that rotates clockwise relative to the origin is disclosed. A security device including the composition is included. A method of making the composition and a method of authenticating the security device are also disclosed.
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公开(公告)号：US11554603B2
公开(公告)日：2023-01-17
申请号：US17301810
申请日：2021-04-15
Applicant: VIAVI Solutions Inc.
Inventor： Cornelis Jan Delst , Vladimir P. Raksha , Paul G. Coombs , Robert B. Sargent , Michael Ray Nofi
IPC: B42D25/36 , B42D25/369 , G02B5/09 , B42D25/378 , B42D25/373 , B42D25/425 , B42D25/29
Abstract: The disclosure relates to an optical security feature that is based on a single axis alignment of mirrors or facets in a structured surface that forms a micro mirror array. In an aspect, a device is described that includes a reflecting structure on a first layer, where the reflecting structure has a top surface with multiple embossed facets arranged in a spatial orientation that produces a flat ring optical effect upon incidence of light. In another aspect, a method for making the device is described that provides a reflecting layer and produces the reflecting structure on the reflecting layer with multiple facets arranged in the spatial orientation to produce the flat ring optical effect. In yet another aspect, an apparatus for making the device is described that includes a pressing device and a stamping device to transfer a pattern of the reflecting structure to a reflecting material.
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公开(公告)号：US10981410B2
公开(公告)日：2021-04-20
申请号：US16845214
申请日：2020-04-10
Applicant: VIAVI Solutions Inc.
Inventor： Cornelis Jan Delst , Vladimir P. Raksha , Paul G. Coombs , Robert B. Sargent , Michael Ray Nofi
IPC: B42D25/36 , B42D25/369 , G02B5/09 , B42D25/378 , B42D25/373 , B42D25/425 , B42D25/29
Abstract: The disclosure relates to an optical security feature that is based on a single axis alignment of mirrors or facets in a structured surface that forms a micro mirror array. In an aspect, a device is described that includes a reflecting structure on a first layer, where the reflecting structure has a top surface with multiple embossed facets arranged in a spatial orientation that produces a flat ring optical effect upon incidence of light. In another aspect, a method for making the device is described that provides a reflecting layer and produces the reflecting structure on the reflecting layer with multiple facets arranged in the spatial orientation to produce the flat ring optical effect. In yet another aspect, an apparatus for making the device is described that includes a pressing device and a stamping device to transfer a pattern of the reflecting structure to a reflecting material.
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公开(公告)号：US10479901B2
公开(公告)日：2019-11-19
申请号：US15812824
申请日：2017-11-14
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. Raksha , Paul T. Kohlmann , Cornelis Jan Delst , Paul G. Coombs
IPC: H01F1/01 , C09D17/00 , C09D11/037 , C09D5/32 , C09D7/62 , C09C1/00 , H01F1/28 , H01F1/03 , C09D7/40 , 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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