Patents by Inventor Branislav Grajciar

Branislav Grajciar 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).

  • Optical coherence reflectometry with depth resolution
    Patent number: 8534838
    Abstract: A device for performing distance measurements on an eye. The device includes an interferometer, focuses at least one measurement beam records backscattered radiation and interferometrically generates a measurement signal displaying structures of the eye by time-domain, spectral-domain or Fourier-domain coherence reflectometry, has an adjustment apparatus for laterally and/or axially displacing the focus in the eye or for varying a polarization state of the measurement beam and has a control apparatus which actuates the interferometer, wherein the control apparatus generates a plurality of A-scan individual signals from the backscattered radiation, combines these to an A-scan measurement signal and actuates the adjustment apparatus for displacing the position of the focus or for varying the polarization while recording the backscattered radiation from which the control apparatus generates the A-scan individual signals is being recorded.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: September 17, 2013
    Assignee: Carl Zeiss Meditec AG
    Inventors: Roland Barth, Roland Bergner, Wilfried Bissmann, Rudolf Murai von Buenau, Martin Hacker, Ingo Koschmieder, Adolf Friedrich Fercher, Branislav Grajciar, Ralf Ebersbach
  • OPTICAL COHERENCE REFLECTOMETRY WITH DEPTH RESOLUTION
    Publication number: 20110149245
    Abstract: A device for performing distance measurements on an eye. The device includes an interferometer, focuses at least one measurement beam records backscattered radiation and interferometrically generates a measurement signal displaying structures of the eye by time-domain, spectral-domain or Fourier-domain coherence reflectometry, has an adjustment apparatus for laterally and/or axially displacing the focus in the eye or for varying a polarization state of the measurement beam and has a control apparatus which actuates the interferometer, wherein the control apparatus generates a plurality of A-scan individual signals from the backscattered radiation, combines these to an A-scan measurement signal and actuates the adjustment apparatus for displacing the position of the focus or for varying the polarization while recording the backscattered radiation from which the control apparatus generates the A-scan individual signals is being recorded.
    Type: Application
    Filed: August 11, 2009
    Publication date: June 23, 2011
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Roland Barth, Roland Bergner, Wilfried Bissmann, Rudolf Murai von Buenau, Martin Hacker, Ingo Koschmieder, Adolf Friedrich Fercher, Branislav Grajciar, Ralf Ebersbach