Patents by Inventor David John Park

David John Park 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).

  • Patent number: 11714220
    Abstract: A method of making an optical article having a gradient tint and a gradient polarization. The method includes providing an optical element including a coating having at least one alignment zone. A dye composition is contacted with the coating. The dye composition includes at least one of: a dichroic dye, a photochromic-dichroic dye, or a combination thereof to diffuse at least a portion of the dye composition into the coating at a predetermined concentration gradient along at least a portion of the coating to provide the gradient tint and the gradient polarization. A kit for making an optical article having a gradient tint and a gradient polarization. An optical article prepared from a method for making an optical article having a gradient tint and a gradient polarization.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: August 1, 2023
    Assignee: Transitions Optical, Inc.
    Inventors: Philip Miller, Delwin S. Jackson, Anil Kumar, John S. Ligas, David John Park, Brian Smyth
  • Patent number: 11673355
    Abstract: A method of producing an optical article includes applying an imbibition composition having at least one dye onto at least a portion of at least one imbibable surface (45) of a substrate (20) to form a coated substrate (10). The method further includes irradiating at least a portion of the coated substrate with heat from a heat source (80) to form a heat gradient across the coated substrate (10) to diffuse the at least one dye into the imbibable surface to form an at least partially imbibed substrate having a dye concentration gradient corresponding to the heat gradient. The method further includes removing a residual component of the imbibition composition from the at least partially imbibed substrate. The dye concentration gradient forms a gradient pattern upon exposure to actinic radiation.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: June 13, 2023
    Assignee: Transitions Optical, Ltd.
    Inventors: Anil Kumar, Brian Smyth, David John Park
  • Publication number: 20220171110
    Abstract: An optical article that includes an optical element and an anisotropic coating layer formed over at least a portion of the optical element. The anisotropic coating layer can include a first light-influencing zone comprising at least one first anisotropic material and a second light-influencing zone comprising at least one second anisotropic material. The at least one of the first light-influencing zone and the second light-influencing zone further include at least one dichroic material and/or at least one photochromic-dichroic material such that the first light-influencing zone and the second light-influencing zone exhibit a different color property, a different photochromic-dichroic reversible change, a different amount of polarization, or a combination thereof.
    Type: Application
    Filed: February 16, 2022
    Publication date: June 2, 2022
    Inventors: Anil Kumar, David John Park, Brian Smyth, Delwin S. Jackson, Henry Nguyen, John S. Ligas, Linda K. Anderson
  • Publication number: 20220066081
    Abstract: A method of making an optical article having a gradient tint and a gradient polarization. The method includes providing an optical element including a coating having at least one alignment zone. A dye composition is contacted with the coating. The dye composition includes at least one of: a dichroic dye, a photochromic-dichroic dye, or a combination thereof to diffuse at least a portion of the dye composition into the coating at a predetermined concentration gradient along at least a portion of the coating to provide the gradient tint and the gradient polarization. A kit for making an optical article having a gradient tint and a gradient polarization. An optical article prepared from a method for making an optical article having a gradient tint and a gradient polarization.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 3, 2022
    Inventors: Philip Miller, Delwin S. Jackson, Anil Kumar, John S. Ligas, David John Park, Brian Smyth
  • Patent number: 11256014
    Abstract: An optical article that includes an optical element and an anisotropic coating layer formed over at least a portion of the optical element. The anisotropic coating layer can include a first light-influencing zone comprising at least one first anisotropic material and a second light-influencing zone comprising at least one second anisotropic material. The at least one of the first light-influencing zone and the second light-influencing zone further include at least one dichroic material and/or at least one photochromic-dichroic material such that the first light-influencing zone and the second light-influencing zone exhibit a different color property, a different photochromic-dichroic reversible change, a different amount of polarization, or a combination thereof.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: February 22, 2022
    Assignee: Transitions Optical, Inc.
    Inventors: Anil Kumar, David John Park, Brian Smyth, Delwin S. Jackson, Henry Nguyen, John S. Ligas, Linda K. Anderson
  • Patent number: 11199653
    Abstract: A method of making an optical article having a gradient tint and a gradient polarization. The method includes providing an optical element including a coating having at least one alignment zone. A dye composition is contacted with the coating. The dye composition includes at least one of: a dichroic dye, a photochromic-dichroic dye, or a combination thereof to diffuse at least a portion of the dye composition into the coating at a predetermined concentration gradient along at least a portion of the coating to provide the gradient tint and the gradient polarization. A kit for making an optical article having a gradient tint and a gradient polarization. An optical article prepared from a method for making an optical article having a gradient tint and a gradient polarization.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: December 14, 2021
    Assignee: Transitions Optical, Inc.
    Inventors: Philip Miller, Delwin S. Jackson, Anil Kumar, John S. Ligas, David John Park, Brian Smyth
  • Publication number: 20190358919
    Abstract: A method of producing an optical article includes applying an imbibition composition having at least one dye onto at least a portion of at least one imbibable surface (45) of a substrate (20) to form a coated substrate (10). The method further includes irradiating at least a portion of the coated substrate with heat from a heat source (80) to form a heat gradient across the coated substrate (10) to diffuse the at least one dye into the imbibable surface to form an at least partially imbibed substrate having a dye concentration gradient corresponding to the heat gradient. The method further includes removing a residual component of the imbibition composition from the at least partially imbibed substrate. The dye concentration gradient forms a gradient pattern upon exposure to actinic radiation.
    Type: Application
    Filed: December 23, 2016
    Publication date: November 28, 2019
    Inventors: Anil Kumar, Brian Smyth, David John Park
  • Publication number: 20180299600
    Abstract: A method of making an optical article having a gradient tint and a gradient polarization. The method includes providing an optical element including a coating having at least one alignment zone. A dye composition is contacted with the coating. The dye composition includes at least one of: a dichroic dye, a photochromic-dichroic dye, or a combination thereof to diffuse at least a portion of the dye composition into the coating at a predetermined concentration gradient along at least a portion of the coating to provide the gradient tint and the gradient polarization. A kit for making an optical article having a gradient tint and a gradient polarization. An optical article prepared from a method for making an optical article having a gradient tint and a gradient polarization.
    Type: Application
    Filed: October 30, 2015
    Publication date: October 18, 2018
    Inventors: Philip Miller, Delwin S. Jackson, Anil Kumar, John S. Ligas, David John Park, Brian Smyth
  • Publication number: 20180299599
    Abstract: An optical article that includes an optical element and an anisotropic coating layer formed over at least a portion of the optical element. The anisotropic coating layer can include a first light-influencing zone comprising at least one first anisotropic material and a second light-influencing zone comprising at least one second anisotropic material. The at least one of the first light-influencing zone and the second light-influencing zone further include at least one dichroic material and/or at least one photochromic-dichroic material such that the first light-influencing zone and the second light-influencing zone exhibit a different color property, a different photochromic-dichroic reversible change, a different amount of polarization, or a combination thereof.
    Type: Application
    Filed: October 30, 2015
    Publication date: October 18, 2018
    Inventors: Anil Kumar, David John Park, Brian Smyth, Delwin S. Jackson, Henry Nguyen, John S. Ligas, Linda K. Anderson
  • Publication number: 20180290408
    Abstract: A method of making an optical article having a gradient tint and a gradient polarization. The method includes contacting one or more dye compositions including at least one of a dichroic dye, a photochromic-dichroic dye, or any combination thereof, with an optical element having a continuous coating including at least one alignment zone. At least a portion of the dye composition diffuses into the coating at a predetermined concentration gradient along at least a portion of the coating.
    Type: Application
    Filed: October 30, 2015
    Publication date: October 11, 2018
    Inventors: David John Park, Delwin S. Jackson, Anil Kumar, John S. Ligas, Philip Miller, Brian Smyth