Viavi Solutions Inc.

Jds Uniphase Corporation

Other

Viava Solutions Inc.

Cornelis Jan Delst

Vladimir P Raksha

Paul Thomas Kohlmann

Alberto Argoitia

Paul G Coombs

Charles Thomas Markantes

Laurence Holden

David De La Fuente

Matthew R Witzman

Robert B Sargent

Michael Ray Nofi

Wilfred C Kittler, Jr

John D Sonderman

Lily O'Boyle

Stacey A Yamanaka

Vladmir P Raksha

Bryan James Clifton

Patrick Laden

Dave Williams

Wilfred C Kittler

Charles T Markantes

Jr Kittler Wilfred C

Vladimir Raksha

Wilfred C Kittler Jr

An article, including a substrate; an image printed on the substrate; in which the image includes two or more types of pixels; in which the two or more types of pixels are chosen from an RGB pixel, an RGBW pixel, and a hybrid pixel; and in which at least one type of pixel, of the two or more types of pixels, includes an optically variable pigment is disclosed. A method of making and using the article is also disclosed.

Article including an image including two or more types of pixels

A composition including a first color shifting pigment flake population having a first D50 particle size; and a second color shifting pigment flake population having a second D50 particle size that is different from the first D50 particle size, wherein the first color shifting pigment flake population and the second color shifting pigment flake population have a similar face color and color shift is disclosed. An article including the composition is included. A method of making the composition and a method of making the article are also disclosed.

Composition including a color shifting pigment having a different particle size

A pigment, including a magnetizable reflector layer including an intermetallic compound, wherein the intermetallic compound is a crystal structure of at least two different elemental metals chemically bonded together is disclosed. A pigment, including a semi-transparent absorber layer including an intermetallic compound, wherein the intermetallic compound is a crystal structure of at least two different elemental metals chemically bonded together is disclosed. A method of making the pigment is also disclosed.

Pigment including an intermetallic compound

According to examples, an article may include a base layer that extends along a first dimension and a second dimension, in which the second dimension is orthogonal to the first dimension. The article may also include reflective ribbons provided on an upper surface of the base layer, in which the reflective ribbons positioned along a common plane extending in the second dimension have dihedral angles that change as a function of distance across the common plane.

Article with angled reflective segments

An assembly including a first magnet; a substrate positioned above the first magnet, and having a surface for receiving a composition including a plurality of magnetizable platelets; and a second magnet, positioned above the substrate is disclosed. The assembly can be used in a method of making an optical security element. The optical security element and the method of making the optical security element are also disclosed.

Optical security element

According to examples, a substrate may be moved through a magnetic field, in which the substrate includes a fluid carrier containing magnetically-orientable flakes. The magnetic field may influence the magnetically-orientable flakes to be respectively oriented in one of multiple orientations. In addition, during movement of the substrate through the magnetic field, radiation may be applied onto a plurality of selected portions of the fluid carrier through at least one opening in a mask to cure the fluid carrier at the plurality of selected portions and fix the magnetically-orientable flakes in the plurality of selected portions at the respective angular orientations as influenced by the magnetic field.

Orienting magnetically-orientable flakes

An article including a substrate; and a composition on the substrate, the composition including a liquid medium, and a semi-transparent magnetic pigment including a semi-transparent, metallic, magnetic material and a dielectric material used as a light interference cavity is disclosed, A method of making the article is also disclosed.

Security pigment and optical security element

A composition includes magnetic particles having a median particle size ranging from about 10 to about 30 microns; and reflective particles having a median particle size ranging from about 1 to about 9 microns, wherein the reflective particles have a lightness at least 10 points higher than the lightness of the magnetic particles. A method of making the composition is also disclosed.

Composition including reflective particles

A flake including a layer of a diamagnetic material; and at least one additional layer is disclosed. The flake, such as a plurality of flakes, can be dispersed in a liquid medium to form a composition. The composition can be applied to a surface of a substrate to form a security device. A method of making the security device is also disclosed.

Security pigment

A printing machine including a printing plate on a surface of a rotating cylinder, in which the printing plate has a fixed pattern for receiving a toner; a vessel containing the toner, which includes a pigment and a thermoplastic binder, in which the fixed pattern is a permanent pattern in a form of selected portions of an image is disclosed. A plate for use in the printing machine is also disclosed. A printing system is also disclosed.

Printing machine and fixed patterned plate

An optical device comprising a structured substrate; a reflective layer on the structured substrate; and a coating with magnetic flakes on the reflective layer is disclosed. A method of making and using an optical device is also disclosed.

Optical device with magnetic flakes and structured substrate

An optical article printed on a substrate may include an organic binder; and a plurality of reflective magnetic platelets provided in the organic binder, wherein the plurality of reflective magnetic platelets are substantially aligned in accordance with at least part of a surface of revolution, and wherein the plurality of reflective magnetic platelets are aligned to cause a first reflective effect of the optical article when the substrate is rotated around a first axis and to cause a second reflective effect of the optical article when the substrate is rotated around a second axis, wherein the first reflective effect is different from the second reflective effect.

Optical security device based on a surface of revolution

A composition including a first color shifting pigment having a first color shift that extends from a starting color at normal through a plurality of colors as a viewing angle is increased to a final color, wherein the first color shift rotates counterclockwise relative to, and about, an origin of the L*a*b* color space; and a color filter that transmits a portion of the first color shift of the first color shifting pigment and absorbs a remainder of the first color shift of the first color shifting pigment; wherein the composition has a second color shift different from the first color shift; and wherein the second color shift has a first portion that rotates counterclockwise relative to the origin and a second portion that rotates clockwise relative to the origin is disclosed. A security device including the composition is included. A method of making the composition and a method of authenticating the security device are also disclosed.

Composition including a color shifting pigment and a color filter

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.

Growing community of inventors

Fairfax, CA, United States of America

Cornelis Jan Delst