Patents by Inventor Quang My Han DOAN

Quang My Han DOAN 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: 20240102884
    Abstract: A system for identifying defects and measuring geometric dimensions in cosmetic ophthalmic lens immersed in a Saline solution, the system, comprising: a) at least one camera for obtaining images of the cosmetic ophthalmic lens, the camera having an optical axis; b) at least one electronically controlled illumination module designed with Visible and infrared LEDs, segmented accordingly and suitably integrated to be positioned along the vertical optical axis for directing light at different angles of the cosmetic ophthalmic lens; c) a customised glass cuvette designed with concave, concentric and spherical surfaces to avoid adding more optical power to the cosmetic ophthalmic lens under inspection and with the radius of the interior surface of the cuvette designed to be bigger than the lens to enable locating the cosmetic ophthalmic lens to the centre of the cuvette during inspection; d) a strobe controller integrated to the illumination module and Camera that is capable of capturing multiple images in quick su
    Type: Application
    Filed: September 22, 2023
    Publication date: March 28, 2024
    Inventors: Sy Hieu DAU, Jia Yaw TAN, Hoang Bao NGUYEN, Quang My Han DOAN