Patents by Inventor Charles T. Markantes

Charles T. Markantes 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: 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
  • 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
  • Patent number: 10242788
    Abstract: The invention relates to anisotropic, reflective, magnetic flakes. In a liquid carrier and under influence of an external magnetic field, the flakes attract to one another side-by-side and form ribbons which provide higher reflectivity to a coating and may be used as a security feature for authentication of an object.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: March 26, 2019
    Assignee: VIAVI Solutions Inc.
    Inventors: Vladimir P. Raksha, Charles T. Markantes, Paul G. Coombs, Roger W. Phillips, Paul T. Kohlmann, Alberto Argoitia, Neil Teitelbaum
  • Publication number: 20190023043
    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.
    Type: Application
    Filed: August 27, 2018
    Publication date: January 24, 2019
    Inventors: Vladimir P. RAKSHA, Paul G. COOMBS, Charles T. MARKANTES
  • Publication number: 20190011618
    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.
    Type: Application
    Filed: August 27, 2018
    Publication date: January 10, 2019
    Inventors: Cornelis Jan DELST, Matthew R. WITZMAN, Paul T. KOHLMANN, Charles T. MARKANTES
  • Patent number: 10173455
    Abstract: A printed image is disclosed wherein the image may be in the form of an array of magnetically aligned platelets or flakes that may by uniform in shape and size and wherein the flakes are arranged in a particularly manner to form optically illusive images useful as security devices, or useful in beam steering applications. In one embodiment of this invention printed array is disclosed a plurality of concentric rings of magnetically aligned platelets disposed upon a substrate in the form of a Fresnel structure, preferably a Fresnel reflector. Advantageously, since the magnetic field can be controlled with respect to strength and direction, one can easily design a field that will correct for spherical aberration that would otherwise be present in a typical Fresnel reflector. In other embodiments of the invention optically illusive images of funnels, domes and cones are printed.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: January 8, 2019
    Assignee: VIAVI Solutions Inc.
    Inventors: Vladimir P. Raksha, Paul G. Coombs, Charles T. Markantes, Alberto Argoitia, Roger W. Phillips
  • Patent number: 10059137
    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.
    Type: Grant
    Filed: November 12, 2016
    Date of Patent: August 28, 2018
    Assignee: VIAVI Solutions Inc.
    Inventors: Vladimir P. Raksha, Paul G. Coombs, Charles T. Markantes
  • Patent number: 10061065
    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.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: August 28, 2018
    Assignee: VIAVI Solutions Inc.
    Inventors: Cornelis Jan Delst, Matthew R. Witzman, Paul T. Kohlmann, Charles T. Markantes
  • Patent number: 10031269
    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.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 24, 2018
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Charles T. Markantes, Cornelis Jan Delst, Vladimir P. Raksha, David De La Fuente, Paul G. Coombs
  • Publication number: 20170271067
    Abstract: The invention relates to anisotropic, reflective, magnetic flakes. In a liquid carrier and under influence of an external magnetic field, the flakes attract to one another side-by-side and form ribbons which provide higher reflectivity to a coating and may be used as a security feature for authentication of an object.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 21, 2017
    Inventors: Vladimir P. RAKSHA, Charles T. Markantes, Paul G. Coombs, Rogar W. Phillips, Paul T. Kohlmann, Alberto Argoitia, Neil Teitelbaum
  • Patent number: 9662925
    Abstract: The invention relates to anisotropic, reflective, magnetic flakes. In a liquid carrier and under influence of an external magnetic field, the flakes attract to one another side-by-side and form ribbons which provide higher reflectivity to a coating and may be used as a security feature for authentication of an object.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: May 30, 2017
    Assignee: Viavi Solutions Inc.
    Inventors: Vladimir P. Raksha, Charles T. Markantes, Paul G. Coombs, Roger W. Phillips, Paul T. Kohlmann, Alberto Argoitia, Neil Teitelbaum
  • Publication number: 20170056902
    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.
    Type: Application
    Filed: November 12, 2016
    Publication date: March 2, 2017
    Inventors: Vladimir P. Raksha, Paul G. Coombs, Charles T. Markantes
  • Publication number: 20170023714
    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.
    Type: Application
    Filed: October 3, 2016
    Publication date: January 26, 2017
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Charles T. MARKANTES, Cornelis Jan DELST, Vladimir P. RAKSHA, David DE LA FUENTE, Paul G. COOMBS
  • Patent number: 9522402
    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.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: December 20, 2016
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. Raksha, Paul G. Coombs, Charles T. Markantes
  • Patent number: 9482800
    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.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: November 1, 2016
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Charles T. Markantes, Cornelis Jan Delst, Vladimir P. Raksha, David de la Fuente, Paul G. Coombs
  • Publication number: 20160187546
    Abstract: A printed image is disclosed wherein the image may be in the form of an array of magnetically aligned platelets or flakes that may by uniform in shape and size and wherein the flakes are arranged in a particularly manner to form optically illusive images useful as security devices, or useful in beam steering applications. In one embodiment of this invention printed array is disclosed a plurality of concentric rings of magnetically aligned platelets disposed upon a substrate in the form of a Fresnel structure, preferably a Fresnel reflector. Advantageously, since the magnetic field can be controlled with respect to strength and direction, one can easily design a field that will correct for spherical aberration that would otherwise be present in a typical Fresnel reflector. In other embodiments of the invention optically illusive images of funnels, domes and cones are printed.
    Type: Application
    Filed: December 31, 2015
    Publication date: June 30, 2016
    Inventors: Vladimir P. Raksha, Paul G. Coombs, Charles T. Markantes, Alberto Argoitia, Roger W. Phillips
  • Patent number: 9257059
    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.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: February 9, 2016
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Vladimir P. Raksha, Paul G. Coombs, Charles T. Markantes, Alberto Argoitia, Roger W. Phillips
  • Publication number: 20150217307
    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.
    Type: Application
    Filed: April 8, 2015
    Publication date: August 6, 2015
    Applicant: JDS Uniphase Corporation
    Inventors: Vladimir P. RAKSHA, Paul G. COOMBS, Charles T. MARKANTES
  • Publication number: 20150138641
    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.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventors: Cornelis Jan Delst, Matthew R. WITZMAN, Paul T. KOHLMANN, Charles T. MARKANTES
  • Patent number: RE45762
    Abstract: A security image and method of forming said image is disclosed wherein a substrate having an image or indicia thereon is coated with a dilute solution of pigment flakes in an ink or paint. The flakes are subsequently aligned in a magnetic field and are fixed after the field is applied. Most or all of the flakes in a region are aligned so as to be partially upstanding wherein their faces are essentially parallel. Coating the image with flakes yields a latent image which can be clearly seen at a small range of predetermined angles.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: October 20, 2015
    Assignee: JDS Uniphase Corporation
    Inventors: Vladimir P. Raksha, Cornelis Jan Delst, Paul G. Coombs, Charles T. Markantes, Alberto Argoitia