公开(公告)号：US20240042787A1

公开(公告)日：2024-02-08

申请号：US18488258

申请日：2023-10-17

Applicant: VIAVI Solutions Inc.

Inventor： Vladimir P. RAKSHA ,  Cornelis Jan DELST

IPC: B42D25/369 ,  B42D25/378 ,  B42D25/41 ,  B41M3/14

CPC classification number: B42D25/369 ,  B42D25/378 ,  B42D25/41 ,  B41M3/148 ,  B42D25/23

Abstract: A security article may include a substrate. The security article may include a layer of security ink. The layer of security ink may include a set of color-shifting interference particles. The security article may include a layer of magnetic color-shifting ink. The layer of magnetic color-shifting ink may include a set of magnetically aligned magnetic particles. A color-shifting property of the layer of security ink and a color-shifting property of the layer of magnetic color-shifting ink may have a threshold level of similarity to create a color matching effect.

公开(公告)号：US20230272230A1

公开(公告)日：2023-08-31

申请号：US18311790

申请日：2023-05-03

Applicant: VIAVI SOLUTIONS INC.

Inventor： Cornelis Jan DELST ,  Paul Thomas KOHLMANN

IPC: C09D5/29 ,  B42D25/369 ,  B42D25/378

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.

公开(公告)号：US20220396088A1

公开(公告)日：2022-12-15

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

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.

公开(公告)号：US20220143997A1

公开(公告)日：2022-05-12

申请号：US17583404

申请日：2022-01-25

Applicant: VIAVI Solutions Inc.

Inventor： Vladimir P. RAKSHA ,  Cornelis Jan DELST

IPC: B41M3/14 ,  B42D25/369 ,  B42D25/378 ,  B41M7/00 ,  B41M1/12

Abstract: A security article may include a substrate. The security article may include a layer of security ink. The layer of security ink may include a set of color-shifting interference particles. The security article may include a layer of magnetic color-shifting ink. The layer of magnetic color-shifting ink may include a set of magnetically aligned magnetic particles. A color-shifting property of the layer of security ink and a color-shifting property of the layer of magnetic color-shifting ink may have a threshold level of similarity to create a color matching effect.

公开(公告)号：US20210252902A1

公开(公告)日：2021-08-19

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: B42D25/369 ,  G02B5/09 ,  B42D25/378 ,  B42D25/373 ,  B42D25/425

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.

公开(公告)号：US20180079250A1

公开(公告)日：2018-03-22

申请号：US15822577

申请日：2017-11-27

Applicant: Viavi Solutions Inc.

Inventor： Alberto ARGOITIA ,  Cornelis Jan DELST ,  Patrick LADEN

IPC: B42D25/369 ,  H01F7/02 ,  B05D3/00 ,  B05D1/16 ,  B05D5/06

CPC classification number: B42D25/369 ,  B05D1/16 ,  B05D3/20 ,  B05D3/203 ,  B05D5/065 ,  B05D2451/00 ,  G09F3/10 ,  G09F19/14 ,  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.

公开(公告)号：US20240424821A1

公开(公告)日：2024-12-26

申请号：US18827065

申请日：2024-09-06

Applicant: VIAVI SOLUTIONS INC.

Inventor： Cornelis Jan DELST ,  Vladimir P. RAKSHA ,  Alberto ARGOITIA ,  Paul Thomas KOHLMANN

IPC: B41N1/16 ,  B41F3/54

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.

公开(公告)号：US20230129015A1

公开(公告)日：2023-04-27

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

IPC: B41N1/16 ,  B41F3/54

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.

公开(公告)号：US20210380812A1

公开(公告)日：2021-12-09

申请号：US16894517

申请日：2020-06-05

Applicant: VIAVI SOLUTIONS INC.

Inventor： Vladimir P. RAKSHA ,  Cornelis Jan DELST

IPC: C09C1/00 ,  C09D11/037 ,  B41M3/14 ,  B42D25/29

Abstract: A flake including a layer of a diamagnetic material; and at least one additional layer is disclosed. The flake, such as a plurality of flakes, can be dispersed in a liquid medium to form a composition. The composition can be applied to a surface of a substrate to form a security device. A method of making the security device is also disclosed.

公开(公告)号：US20190249013A1

公开(公告)日：2019-08-15

申请号：US16390979

申请日：2019-04-22

Applicant: VIAVI SOLUTIONS INC.

Inventor： Alberto ARGOITIA ,  Cornelis Jan DELST ,  Laurence HOLDEN

IPC: C09C1/00 ,  G02B5/18 ,  C09D7/40 ,  B82Y30/00

CPC classification number: C09C1/0018 ,  B82Y30/00 ,  C01P2004/20 ,  C01P2004/22 ,  C01P2004/64 ,  C01P2006/60 ,  C09C1/0015 ,  C09C1/0078 ,  C09D7/70 ,  G02B5/18 ,  G02B5/1847 ,  Y10T428/24612 ,  Y10T428/25 ,  Y10T428/2982

Abstract: The invention provides a plurality of substantially same planar pigment flakes, each formed of one or more thin film layers. Each flake has a face surface and a flake border delimiting the face surface; the flake border undulates in the plane of the flake. The flakes have a pre-selected shape, may have a symbol or a grating thereon. A method of manufacturing of these flakes including the steps of: (a) providing a substrate having a plurality of one-flake regions and a plurality of depressions or protrusions disposed therebetween and not extending into the one-flake regions, (b) coating the substrate with a releasable coating, and (c) removing the releasable coating and breaking it into the flakes; wherein two adjacent of the one-flake regions are separated by at least three of the depressions or protrusions for facilitating the breaking of the releasable coating into the flakes.