公开(公告)号：US20200238745A1

公开(公告)日：2020-07-30

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: B42D25/369 ,  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：US20200215845A1

公开(公告)日：2020-07-09

申请号：US16733081

申请日：2020-01-02

Applicant: VIAVI SOLUTIONS INC.

Inventor： Vladimir P. RAKSHA ,  John Hynes ,  Laurence Holden ,  Paul G. Coombs

IPC: B42D25/369 ,  B42D25/00 ,  H01F41/02 ,  B42D25/29 ,  B44F1/02 ,  C09D7/61 ,  B41M7/00 ,  C09D11/00 ,  B41M3/14 ,  C09D5/36 ,  C09D5/29 ,  B05D5/06 ,  B05D3/00 ,  B42D25/378 ,  B42D25/41 ,  B42D25/342 ,  B44F1/10

Abstract: In a printed article, pigment flakes are magnetically aligned so as to form curved patterns in a plurality of cross-sections normal a continuous imaginary line, wherein radii of the curved patterns increase along the imaginary line from the first point to the second point. When light is incident upon the aligned pigment flakes from a light source, light reflected from the aligned pattern forms a bright image which appears to gradually change its shape and move from one side of the continuous imaginary line to another side of the continuous imaginary line when the substrate is tilted with respect to the light source.

公开(公告)号：US20190275826A1

公开(公告)日：2019-09-12

申请号：US16422274

申请日：2019-05-24

Applicant: VIAVI Solutions Inc.

Inventor： Vladimir P. RAKSHA ,  Cornelius Jan DELST

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

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：US20190225005A1

公开(公告)日：2019-07-25

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 ,  B05D3/00 ,  H01F41/02 ,  C09D7/61 ,  C09D5/36 ,  C09D5/29 ,  B44F1/10 ,  B44F1/02 ,  B42D25/41 ,  B42D25/378 ,  B42D25/342 ,  B42D25/29 ,  B42D25/00 ,  B41M7/00 ,  B41M3/14 ,  B05D5/06 ,  C09D11/00

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.

公开(公告)号：US20180066147A1

公开(公告)日：2018-03-08

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: C09D7/12 ,  H01F1/01 ,  C09D17/00 ,  C09D11/037 ,  C09D5/32 ,  H01F1/28

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.

公开(公告)号：US20170271067A1

公开(公告)日：2017-09-21

申请号：US15601439

申请日：2017-05-22

Applicant: Viavi Solutions Inc.

Inventor： Vladimir P. RAKSHA ,  Charles T. Markantes ,  Paul G. Coombs ,  Rogar W. Phillips ,  Paul T. Kohlmann ,  Alberto Argoitia ,  Neil Teitelbaum

IPC: H01F10/08 ,  C09D5/33 ,  C09D7/12 ,  B42D25/328 ,  C09D11/50 ,  C09D201/00 ,  B42D25/369 ,  B42D25/29 ,  C09C1/00 ,  C09D11/037

CPC classification number: H01F10/08 ,  B42D25/29 ,  B42D25/328 ,  B42D25/369 ,  B42D2033/16 ,  B42D2033/18 ,  B42D2035/14 ,  B82Y30/00 ,  C01P2004/02 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/42 ,  C01P2006/60 ,  C09C1/0015 ,  C09C1/0021 ,  C09C1/0078 ,  C09C2200/1054 ,  C09C2200/304 ,  C09C2200/306 ,  C09C2200/308 ,  C09C2200/401 ,  C09C2210/40 ,  C09C2220/20 ,  C09D5/004 ,  C09D7/70 ,  C09D11/037 ,  C09D11/50 ,  C09D201/00 ,  H01F1/0027 ,  H01F41/16 ,  Y10T428/24372 ,  Y10T428/2982

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.