Patents Assigned to Optical Coherence Technologies, Inc.
  • Optical fiber interferometer with PZT scanning of interferometer arm optical length
    Patent number: 5867268
    Abstract: The invention is related to technical physics, in particular to devices for investigating the internal structure of objects and can be used in medicine for diagnostics of human organs and systems, in particular for optical coherence tomography and in technical diagnostics, for example technological process control. The invention relates to the creation of an optical-fiber interferometer, which, being used in a device for optical coherence tomography, allows one to investigate media with short time of changing of optical characteristics or its position relative to the optical probe, for example biotissues in vivo. The invention also relates to the creation of a piezoelectric modulator, suitable for use in the interferometer and for providing the necessary scanning depth in the mentioned media.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: February 2, 1999
    Assignee: Optical Coherence Technologies, Inc.
    Inventors: Valentin M. Gelikonov, Grigory V. Gelikonov, Natalia D. Gladkova, Vladimir I. Leonov, Felix I. Feldchtein, Alexander M. Sergeev, Yakov I. Khanin
  • Optical fiber interferometer and piezoelectric modulator
    Patent number: 5835642
    Abstract: The invention is related to technical physics, in particular to devices for investigating the internal structure of objects and can be used in medicine for diagnostics of human organs and systems, in particular for optical coherence tomography and in technical diagnostics, for example technological process control. The invention relates to the creation of an optical-fiber interferometer, which, being used in a device for optical coherence tomography, allows one to investigate media with short time of changing of optical characteristics or its position relative to the optical probe, for example biotissues in vivo. The invention also relates to the creation of a piezoelectric modulator, suitable for use in the interferometer and for providing the necessary scanning depth in the mentioned media.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: November 10, 1998
    Assignee: Optical Coherence Technologies, Inc.
    Inventors: Valentin M. Gelikonov, Grigory V. Gelikonov, Natalia D. Gladkova, Vladimir I. Leonov, Felix I. Feldchtein, Alexander M. Sergeev, Yakov I. Khanin