Viavi Solutions Inc.

Jds Uniphase Corporation

Flex Products, Inc.

Other

Hueck Folien Gesellschaft M.b.h.

Flex Products, Inc. a Jds Uniphase Company

Vladimir P Raksha

Paul G Coombs

Charles Thomas Markantes

Cornelis Jan Delst

Roger Winston Phillips

Alberto Argoitia

Paul Thomas Kohlmann

Neil Teitelbaum

Dishuan Chu

John Hynes

Laurence Holden

Jay M Holman

Curtis Ross Hruska

Charlotte R LeGallee

David De La Fuente

Michael Ray Nofi

Carole Thoraval

Matthew R Witzman

Eric William Kurman

Wilfred C Kittler, Jr

Robert B Sargent

Robert Oberti

Cornelius Jan Delst

Joe Garcia

Richard Alan Bradley, Jr

Thomas A Mayer

John D Sonderman

Charles K Carniglia

Garth Zambory

Larry Meredith

Dave Williams

Keith Hollingsworth

Paul T Kohlmann

Charles T Markantes

Jr Kittler Wilfred C

Roger W Phillips

Dishan Chu

Charles Tom Markantes

Dishuan Sean Chu

In some implementations, a metamaterial absorber (MMA) is configured to absorb a particular range of electromagnetic radiation. The MMA includes a first metal or semiconductor material; a dielectric material disposed on the first metal or semiconductor material; and a second metal material disposed on the dielectric material. A length dimension associated with the MMA is less than or equal to 200 micrometers (μm), a width dimension associated with the MMA is less than or equal to 200 μm, and a thickness dimension associated with the MMA is less than or equal to 8 μm.

Micro-sized metamaterial absorbers

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.

Article with curved patterns formed of aligned pigment flakes

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

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.

Security device formed by printing with special effect inks

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 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 scanning laser having a wavelength compatible with a coating binder so as to cure it as the laser scans and irradiates the coating on a moving web. A system and method for curing flakes by providing a scanning laser which scans across a moving coated substrate in a magnetic field allows images to be formed as magnetically aligned flakes are cured into a fixed position. The images have regions of cured aligned flakes. The scanning laser cures the magnetically aligned flakes within it region it irradiates. Alternatively an array of lasers can be used wherein individual lasers can be switched on and off to fix irradiated coating as a moving web is moved at a high speed.

System and method for forming an image on a substrate

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 particle including a core particle; and a vapor deposited colorant including an organic colored material that encapsulates the core particle. The particle can be a special effect pigment or a thin film interference pigment. Methods of making the particle are also disclosed.

Pigments having a vapor deposited colorant

Growing community of inventors

Santa Rosa, CA, United States of America

Vladimir P Raksha