公开(公告)号：US12135239B2

公开(公告)日：2024-11-05

申请号：US17581103

申请日：2022-01-21

Applicant: VIAVI Solutions Inc.

Inventor： Paula Smith ,  Curtis R. Hruska ,  Benjamin F. Catching ,  Paul G. Coombs

IPC: G01J3/02 ,  G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G01N21/25 ,  G01N21/85 ,  G02B5/20 ,  G02B5/22 ,  G02B5/28 ,  G02B5/30 ,  G02B6/42

Abstract: An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. The lateral displacement may cause a suppression of the Oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample.

公开(公告)号：US11504990B2

公开(公告)日：2022-11-22

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 ,  B42D25/369

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：US10562333B2

公开(公告)日：2020-02-18

申请号：US16224575

申请日：2018-12-18

Applicant: VIAVI SOLUTIONS INC.

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

IPC: B42D25/29 ,  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 ,  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 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：US10059137B2

公开(公告)日：2018-08-28

申请号：US15350021

申请日：2016-11-12

Applicant: VIAVI SOLUTIONS INC.

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

IPC: B41M3/14 ,  B41M1/00 ,  B41M5/00 ,  B41M3/00 ,  B41F23/00 ,  B41F11/02 ,  B05B7/02 ,  B05B5/00 ,  B05D3/00 ,  B05D5/06 ,  B42D25/369 ,  B42D25/29

CPC classification number: B41M1/00 ,  B05B5/00 ,  B05D3/207 ,  B05D5/06 ,  B05D5/061 ,  B41F11/02 ,  B41F23/00 ,  B41M3/00 ,  B41M3/14 ,  B41M5/00 ,  B41P2200/30 ,  B42D25/29 ,  B42D25/369 ,  B42D2033/16 ,  B42D2035/20

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：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

IPC: H01F1/01 ,  C09D7/12 ,  C09C1/00 ,  H01F1/28 ,  C09D5/32 ,  C09D11/037 ,  H01F1/26

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。

公开(公告)号：US09257059B2

公开(公告)日：2016-02-09

申请号：US13689110

申请日：2012-11-29

Applicant: Viavi Solutions Inc.

Inventor： Vladimir P. Raksha ,  Paul G. Coombs ,  Charles T. Markantes ,  Alberto Argoitia ,  Roger W. Phillips

IPC: G09F3/03 ,  G02B5/09 ,  G02B26/02 ,  B41M3/14 ,  B42D25/29

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 device includes a substrate and at least 1,000 flakes resting upon the substrate, each flake including a magnetic layer. The plurality of flakes are aligned so as to form a plurality of rings or curves, wherein within each ring or curve, flakes are tilted at a same angle with respect to the substrate and planes extending from surfaces of said flakes intersect with one another. The device provides a visible image of a single ring or curve when illuminated with a single light source, and three rings or curves are visible when three light sources illuminate the device. The device may be used as a printed light detector.

Abstract translation: 一种器件包括衬底和至少1000个薄片，搁置在衬底上，每个薄片包括磁性层。 多个薄片对齐以形成多个环或曲线，其中在每个环或曲线内，薄片相对于基底以相同的角度倾斜，并且从所述薄片的表面延伸的平面彼此相交。 当用单个光源照明时，该设备提供单个环或曲线的可见图像，并且当三个光源照亮设备时，三个环或曲线可见。 该装置可以用作印刷光检测器。

公开(公告)号：US12275260B2

公开(公告)日：2025-04-15

申请号：US17972501

申请日：2022-10-24

Applicant: VIAVI SOLUTIONS INC.

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

IPC: B41M3/14 ,  B42D25/29 ,  B42D25/378 ,  B42D25/369

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：US11787956B2

公开(公告)日：2023-10-17

申请号：US17942557

申请日：2022-09-12

Applicant: VIAVI SOLUTIONS INC.

Inventor： Vladimir P. Raksha ,  Paul T. Kohlmann ,  Cornelis Jan Delst ,  Paul G. Coombs

IPC: C09D7/62 ,  H01F1/01 ,  C09C1/00 ,  H01F1/28 ,  C09D5/32 ,  C09D11/037 ,  C09D7/40 ,  C09D17/00 ,  H01F1/03 ,  H01F1/26

CPC classification number: C09D7/62 ,  C09C1/0015 ,  C09D5/32 ,  C09D7/70 ,  C09D11/037 ,  C09D17/004 ,  H01F1/01 ,  H01F1/0306 ,  H01F1/28 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/42 ,  C01P2006/60 ,  C09C2200/1054 ,  C09C2210/00 ,  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.

公开(公告)号：US11198315B2

公开(公告)日：2021-12-14

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 ,  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 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：US20190126658A1

公开(公告)日：2019-05-02

申请号：US16224575

申请日：2018-12-18

Applicant: VIAVI SOLUTIONS INC.

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

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