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.

公开(公告)号：US11230127B2

公开(公告)日：2022-01-25

申请号：US16113977

申请日：2018-08-27

Applicant: VIAVI Solutions Inc.

Inventor： Vladimir P. Raksha ,  Paul G. Coombs ,  Charles T. Markantes

IPC: B41M1/00 ,  B05D3/00 ,  B05D5/06 ,  B41F11/02 ,  B41M3/14 ,  B41M5/00 ,  B42D25/29 ,  B41M3/00 ,  B41F23/00 ,  B42D25/369

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.

公开(公告)号：US11079525B2

公开(公告)日：2021-08-03

申请号：US16113969

申请日：2018-08-27

Applicant: VIAVI Solutions Inc.

Inventor： Cornelis Jan Delst ,  Matthew R. Witzman ,  Paul T. Kohlmann ,  Charles T. Markantes

IPC: B29C70/58 ,  C09C1/00 ,  C09D5/36 ,  G02B5/22 ,  G02B5/28 ,  G02B27/00

Abstract: A method of providing a configuration of a system of interference filters with a visible color shifting effect, includes: a hue matching step of identifying a configuration of a first interference filter including two first metal layers and a first spacer layer therebetween, and a configuration of a second interference filter including two second metal layers and a second spacer layer therebetween, wherein the first and second filters match in hue at the first viewing angle, and the mismatch in hue at the second angle; and a lightness adjustment step which may include modifying the layer material or the layer thickness of one of the metal layers; wherein a difference in lightness at the first viewing angle between the first and second modified filters is less that a difference in lightness at the first viewing angle between the first and second filters.

公开(公告)号：US20190299691A1

公开(公告)日：2019-10-03

申请号：US16434990

申请日：2019-06-07

Applicant: VIAVI SOLUTIONS INC.

Inventor： Vladimir P. Raksha ,  Paul G. Coombs ,  Charles T. Markantes

IPC: B41M3/14 ,  B42D25/29 ,  B42D25/378

Abstract: A security device is disclosed that has an image formed upon a substrate. The image has a first printed region and a second different printed region both printed with a same ink formulation of field alignable flakes. At least one of the printed regions has optically variable effects. One of the first and second printed regions at least partially surrounds the other. The second printed region is formed of thin parallel lines and the first printed region has substantially wider lines than are printed in the second printed region. The area density of the ink in a line in the first group of wider lines is greater than the area density of a line in the second group of narrower lines. A surprising effect of this image is that particles or flakes in the ink are field aligned so as to produce a visible kinematic dynamic effect visible in the first region and not visible in the second region when the image is tilted or rotated.

公开(公告)号：US20160187546A1

公开(公告)日：2016-06-30

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

IPC: G02B5/09 ,  B42D25/369 ,  G02B27/00

CPC classification number: B42D25/369 ,  B05D3/207 ,  B41M3/148 ,  B42D25/29 ,  B42D2033/16 ,  B42D2035/20 ,  G02B5/09 ,  G02B26/026 ,  G02B27/0025 ,  G09F3/0376 ,  Y10T428/24802 ,  Y10T428/25

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.