Patents by Inventor Petr Mikhaylovich Sterlingov

Petr Mikhaylovich Sterlingov 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).

  • Phase-modified quasi-non-diffracting laser beams for high angle laser processing of transparent workpieces
    Patent number: 11766746
    Abstract: A method for processing a transparent workpiece that includes directing a laser beam the transparent workpiece. The laser beam incident to the impingement surface has an oblong angular spectrum and portion of the laser beam directed into the transparent workpiece is a laser beam focal line and generates an induced absorption to produce a defect within the transparent workpiece. The laser beam focal line includes a wavelength ?, a spot size wo, a Rayleigh range ZR that is greater than F D ? ? ? ? w o 2 ? , where FD is a dimensionless divergence factor comprising a value of 10 or greater, and an internal beam angle of greater than 10° relative to a plane orthogonal to an impingement surface at an impingement location, such that the defect has a defect angle within the transparent workpiece of greater than 10° relative to a plane orthogonal to the impingement surface at the impingement location.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: September 26, 2023
    Assignee: Corning Incorporated
    Inventors: Viacheslav Viacheslavovich Ivanov, Nikolay Alekseyevich Kaliteevskiy, Nickolaos Savidis, Petr Mikhaylovich Sterlingov, Ralf Joachim Terbrueggen, Craig John Mancusi Ungaro
  • PHASE-MODIFIED QUASI-NON-DIFFRACTING LASER BEAMS FOR HIGH ANGLE LASER PROCESSING OF TRANSPARENT WORKPIECES
    Publication number: 20200361037
    Abstract: A method for processing a transparent workpiece that includes directing a laser beam the transparent workpiece. The laser beam incident to the impingement surface has an oblong angular spectrum and portion of the laser beam directed into the transparent workpiece is a laser beam focal line and generates an induced absorption to produce a defect within the transparent workpiece. The laser beam focal line includes a wavelength ?, a spot size wo, a Rayleigh range ZR that is greater than F D ? ? ? ? w o 2 ? , where FD is a dimensionless divergence factor comprising a value of 10 or greater, and an internal beam angle of greater than 10° relative to a plane orthogonal to an impingement surface at an impingement location, such that the defect has a defect angle within the transparent workpiece of greater than 10° relative to a plane orthogonal to the impingement surface at the impingement location.
    Type: Application
    Filed: May 11, 2020
    Publication date: November 19, 2020
    Inventors: Viacheslav Viacheslavovich Ivanov, Nikolay Alekseyevich Kaliteevskiy, Nickolaos Savidis, Petr Mikhaylovich Sterlingov, Ralf Joachim Terbrueggen, Craig John Mancusi Ungaro