Patents Assigned to TOPLENS HANGZHOU INC.
  • Automatic pouring device and pouring method for lens monomer
    Patent number: 11400670
    Abstract: The present invention provides an automatic casting device for a lens monomer and a process thereof. When the lens monomer within a mold cavity reaches a liquid level monitoring point P, the cavity is exactly 50% filled with the lens monomer. The remaining of the casting process will be precisely controlled based on the obtained data from the past process to ensure an exact 100% monomer filling into the cavity.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: August 2, 2022
    Assignee: TOPLENS HANGZHOU INC.
    Inventor: Hongxiang Meng
  • Revolving drum type digital lens printing device
    Patent number: 11141993
    Abstract: The invention provides a good inking quality and high inking efficiency lens digital inking device in drum layout. It includes a rotating unit, a lens height adjustment unit, invisible mark recognition unit and print head, utilizing the rotating circumference of the same drum, to completely or partially compensating for the curvature of the front surface of the lens, making the distance between print head to the center or edge of the lens edge reduced, which improves the print quality. This invention is suitable for all kinds of lens inking.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: October 12, 2021
    Assignee: TOPLENS HANGZHOU INC.
    Inventors: Donghui Chen, Hongxiang Meng
  • REVOLVING DRUM TYPE DIGITAL LENS PRINTING DEVICE
    Publication number: 20210146699
    Abstract: The invention provides a good inking quality and high inking efficiency lens digital inking device in drum layout. It includes a rotating unit, a lens height adjustment unit, invisible mark recognition unit and print head, utilizing the rotating circumference of the same drum, to completely or partially compensating for the curvature of the front surface of the lens, making the distance between print head to the center or edge of the lens edge reduced, which improves the print quality. This invention is suitable for all kinds of lens inking.
    Type: Application
    Filed: June 21, 2018
    Publication date: May 20, 2021
    Applicant: TOPLENS HANGZHOU INC.
    Inventors: Donghui CHEN, Hongxiang MENG
  • AUTOMATIC POURING DEVICE AND POURING METHOD FOR LENS MONOMER
    Publication number: 20210078270
    Abstract: The present invention provides an automatic casting device for a lens monomer and a process thereof. When the lens monomer within a mold cavity reaches a liquid level monitoring point P, the cavity is exactly 50% filled with the lens monomer. The remaining of the casting process will be precisely controlled based on the obtained data from the past process to ensure an exact 100% monomer filling into the cavity.
    Type: Application
    Filed: June 12, 2018
    Publication date: March 18, 2021
    Applicant: TOPLENS HANGZHOU INC.
    Inventor: Hongxiang MENG
  • Handheld apparatus for measuring lens surface power
    Patent number: 9835519
    Abstract: This invention discloses a handheld apparatus for measuring surface power or radius of prescription ophthalmic spectacle lenses, optical lenses or molds blocked with or without chuck during Rx production, and after comparing measurement results with designed data, providing correction data to the processing machines via wireless connection for correction processing if needed. The handheld apparatus integrates an optical measurement head into a monolithic optical system.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: December 5, 2017
    Assignee: TOPLENS HANGZHOU INC.
    Inventor: Hongxiang Meng