公开(公告)号：US20220063319A1

公开(公告)日：2022-03-03

申请号：US17523660

申请日：2021-11-10

Applicant: VIAVI SOLUTIONS INC.

Inventor： Vladimir P. RAKSHA ,  John HYNES ,  Laurence HOLDEN ,  Paul G. COOMBS

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

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 Hakes 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：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.