Patents by Inventor Vladimir P. Raksha

Vladimir P. Raksha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200338922
    Abstract: 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.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 29, 2020
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. RAKSHA, Cornells Jan Delst, Paul G. Coombs
  • Patent number: 10752042
    Abstract: An article includes a substrate and a graphical component forming an image and an optical component which includes magnetic pigment flakes aligned so as to form a frame pattern which surrounds the image. When light is incident upon the pigment flakes from a light source, light reflected from the frame pattern forms a dynamic frame which surrounds the image and appears to move as the substrate is tilted with respect to the light source. The image appears to be stationary when the dynamic frame appears to move.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: August 25, 2020
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. Raksha, John Hynes, Laurence Holden, Paul G. Coombs
  • Publication number: 20200257235
    Abstract: 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.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 13, 2020
    Inventors: Vladimir P. RAKSHA, Cornelis Jan Delst
  • Publication number: 20200238745
    Abstract: The disclosure relates to an optical security feature that is based on a single axis alignment of mirrors or facets in a structured surface that forms a micro mirror array. In an aspect, a device is described that includes a reflecting structure on a first layer, where the reflecting structure has a top surface with multiple embossed facets arranged in a spatial orientation that produces a flat ring optical effect upon incidence of light. In another aspect, a method for making the device is described that provides a reflecting layer and produces the reflecting structure on the reflecting layer with multiple facets arranged in the spatial orientation to produce the flat ring optical effect. In yet another aspect, an apparatus for making the device is described that includes a pressing device and a stamping device to transfer a pattern of the reflecting structure to a reflecting material.
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Inventors: Cornelis Jan DELST, Vladimir P. RAKSHA, Paul G. COOMBS, Robert B. SARGENT, Michael Ray NOFI
  • Publication number: 20200215845
    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.
    Type: Application
    Filed: January 2, 2020
    Publication date: July 9, 2020
    Applicant: VIAVI SOLUTION INC.
    Inventors: Vladimir P. RAKSHA, John Hynes, Laurence Holden, Paul G. Coombs
  • Patent number: 10642214
    Abstract: 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.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: May 5, 2020
    Assignee: VIAVI Solutions Inc.
    Inventors: Vladimir P. Raksha, Cornelis Jan Delst
  • Publication number: 20200115566
    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.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 16, 2020
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. RAKSHA, Paul T. Kohlmann, Cornelis Jan Delst, Paul G. Coombs
  • Patent number: 10562333
    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.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: February 18, 2020
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. Raksha, John Hynes, Laurence Holden, Paul G. Coombs
  • Publication number: 20200050140
    Abstract: 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.
    Type: Application
    Filed: August 13, 2018
    Publication date: February 13, 2020
    Inventors: Vladimir P. RAKSHA, Cornelis Jan DELST
  • Patent number: 10500611
    Abstract: 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.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: December 10, 2019
    Assignee: VIAVI Solutions Inc.
    Inventors: Vladimir P. Raksha, Curtis R. Hruska, Neil Teitelbaum
  • Patent number: 10479901
    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.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: November 19, 2019
    Assignee: Viavi Solutions Inc.
    Inventors: Vladimir P. Raksha, Paul T. Kohlmann, Cornelis Jan Delst, Paul G. Coombs
  • Publication number: 20190329289
    Abstract: 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.
    Type: Application
    Filed: July 11, 2019
    Publication date: October 31, 2019
    Inventors: Vladimir P. RAKSHA, Curtis R. Hruska, Neil Teitelbaum
  • Publication number: 20190299691
    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.
    Type: Application
    Filed: June 7, 2019
    Publication date: October 3, 2019
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. Raksha, Paul G. Coombs, Charles T. Markantes
  • Publication number: 20190275826
    Abstract: 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.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 12, 2019
    Inventors: Vladimir P. RAKSHA, Cornelius Jan DELST
  • Publication number: 20190225005
    Abstract: An article includes a substrate and a graphical component forming an image and an optical component which includes magnetic pigment flakes aligned so as to form a frame pattern which surrounds the image. When light is incident upon the pigment flakes from a light source, light reflected from the frame pattern forms a dynamic frame which surrounds the image and appears to move as the substrate is tilted with respect to the light source. The image appears to be stationary when the dynamic frame appears to move.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 25, 2019
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. RAKSHA, John Hynes, Laurence Holden, Paul G. Coombs
  • Patent number: 10357991
    Abstract: 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.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: July 23, 2019
    Assignee: VIAVI Solutions Inc.
    Inventors: Vladimir P. Raksha, Cornelius Jan Delst
  • Patent number: 10343436
    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.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: July 9, 2019
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. Raksha, Paul G. Coombs, Charles T. Markantes
  • Publication number: 20190193114
    Abstract: 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.
    Type: Application
    Filed: March 1, 2019
    Publication date: June 27, 2019
    Inventors: Vladimir P. RAKSHA, Curtis R. Hruska, Neil Teitelbaum
  • Publication number: 20190126658
    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.
    Type: Application
    Filed: December 18, 2018
    Publication date: May 2, 2019
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. RAKSHA, John Hynes, Laurence Holden, Paul G. Coombs
  • Patent number: 10259254
    Abstract: An article includes a substrate and a graphical component forming an image and an optical component which includes magnetic pigment flakes aligned so as to form a frame pattern which surrounds the image. When light is incident upon the pigment flakes from a light source, light reflected from the frame pattern forms a dynamic frame which surrounds the image and appears to move as the substrate is tilted with respect to the light source. The image appears to be stationary when the dynamic frame appears to move.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: April 16, 2019
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. Raksha, John Hynes, Laurence Holden, Paul G. Coombs