-
公开(公告)号：US20170023714A1
公开(公告)日：2017-01-26
申请号：US15283917
申请日：2016-10-03
Applicant: VIAVI SOLUTIONS INC.
Inventor： Charles T. MARKANTES , Cornelis Jan DELST , Vladimir P. RAKSHA , David DE LA FUENTE , Paul G. COOMBS
Abstract: In a plurality of asymmetric color-shifting flakes, each flake has an asymmetric magnetic core with a magnetic layer visible on the first side of the core and a non-magnetic reflector layer on the magnetic layer, visible on the second side of the core. The flake has a spacer layer and an absorber layer on the first side of the core, and also a spacer layer and an absorber layer on the second side of the core, for providing color shifting effects. The material of the magnetic layer is different from the material of the reflector layer, and may be more stable when exposed to a chemical. When a coating with the asymmetric color-shifting flakes is exposed to the chemical, it may have better optical performance than a coating with symmetric color-shifting flakes.
Abstract translation: 在多个非对称色移薄片中，每个薄片具有非对称磁芯，磁芯在磁芯的第一侧可见，磁性层上的非磁性反射层可见于磁芯的第二侧。 薄片在芯的第一侧上具有间隔层和吸收层，并且在芯的第二侧上还具有间隔层和吸收层，用于提供颜色转换效果。 磁性层的材料与反射层的材料不同，暴露于化学物质时可能更稳定。 当具有不对称色移薄片的涂层暴露于化学品时，可能具有比具有对称色移薄片的涂层更好的光学性能。
-
公开(公告)号：US20190011618A1
公开(公告)日：2019-01-10
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
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：US20230038496A1
公开(公告)日：2023-02-09
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 , B42D25/378 , B42D25/29
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：US20190023043A1
公开(公告)日：2019-01-24
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 , B05B7/02 , B41F23/00 , B05B5/00 , B42D25/29 , B41M5/00 , B41M3/14 , B41M3/00 , B41F11/02 , B05D5/06 , 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.
-
-
-
Search Results
4
records
(took 0.01 seconds)
