Patents by Inventor Roland Bergner

Roland Bergner 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: 20190246898
    Abstract: A method for measuring distances and angles in the human eye in a highly sensitive manner in order to insert an intraocular lens having the correct refractive power during a cataract operation. The method is based on low coherence interferometry using the dual beam method, in which the time domain signals are detected using a spatially resolving sensor. The delay line of the interferometric measuring arrangement employed is continuously tuned and the low coherence illumination light source used to illuminate the retina of an eye is periodically modulated in terms of its brightness. The light signals reflected by the retina are captured by a sensor and detected in spatially resolved fashion. The disclosed method is used to measure the eye length of a cataractous eye. Even though the method is provided, in particular, for measuring already cataractous eyes, it can be used, in principle, to measure the axial length of all eyes.
    Type: Application
    Filed: July 14, 2017
    Publication date: August 15, 2019
    Applicants: Carl Zeiss Meditec AG, Carl Zeiss AG
    Inventors: Daniel BUBLITZ, Roland BERGNER, Manfred DICK
  • Patent number: 9504381
    Abstract: Combined equipment for non-contacting determination of axial length (AL), anterior chamber depth (VKT) and corneal curvature (HHK) of the eye, are also important for the selection of the intraocular lens IOL to be implanted, particularly the selection of an intraocular lens (IOL) to be implanted, preferably with fixation of the eye by means of a fixating lamp and/or illumination through light sources grouped eccentrically about the observation axis.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: November 29, 2016
    Assignee: Carl Zeiss Meditec AG
    Inventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
  • Patent number: 9161687
    Abstract: The invention relates to a solution for interferometrically measuring the eye length and the anterior eye segment after the optical axis of the measuring system has been aligned with the optical axis of an eye. The device according to the invention for interferometrically measuring the eye length and the anterior eye segment consists of an illumination source, at least one interferometric measuring array with external reference, diverse optical imaging systems, and a control and evaluation unit. The illumination source has high spatial coherence and low coherence of time. Preferably, light is emitted by the illumination device from the NIR range, having a wavelength of 700-1000 nm, for example. Furthermore, an optical imaging system is arranged in front of the eye such that the illumination light impinges on the eye as a nearly collimated beam.
    Type: Grant
    Filed: December 17, 2011
    Date of Patent: October 20, 2015
    Assignee: Carl Zeiss Meditec AG
    Inventors: Tobias Schmitt-Manderbach, Daniel Bublitz, Roland Bergner
  • Patent number: 9084564
    Abstract: A system for determining the surface shape of the cornea of an eye by analyzing the reflection of a spatially distributed ring pattern. The system includes an element for generating a ring pattern, an illuminating unit, an image capturing unit, and a control and analyzing unit. The element for generating rings is a fresneled axicon with annular structures of different radii. Furthermore, an optical element for illuminating the entire surface of the fresneled axicon with plane waves and an optical element for separating the illuminating and detecting beam path are arranged between the illuminating unit and the fresneled axicon. Furthermore, the image capturing unit consisting of an imaging system and an image sensor is designed for a telecentric distance-independent image detection.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: July 21, 2015
    Assignee: Carl Zeiss Meditec AG
    Inventors: Daniel Bublitz, Günter Rudolph, Martin Hacker, Tobias Bühren, Roland Bergner, Burkhard Wagner, Rico Fuchs
  • Patent number: 9044164
    Abstract: A device for swept-source optical coherence domain reflectometry (SS OCDR) on moveable samples, particularly human eyes, for obtaining A-scans, having a measuring range according to the sample length and having a laser light source which can be adjusted by a main wave number k0 and at least one receiver for the light dissipated from the sample, wherein the sample is illuminated on the sample surface by a measurement beam having a diameter D by way of a coupling device. The light source has a spectral line width of ?k<168 m?1 and the adjustment of the light source is carried out in ?<44 s/(D*k0).
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 2, 2015
    Assignee: Carl Zeiss Meditec AG
    Inventors: Martin Hacker, Ralf Ebersbach, Thomas Pabst, Ulf Peterlein, Gerard Antkowiak, Roland Bergner, Ingo Koschmieder
  • Patent number: 8967808
    Abstract: An ophthalmological measuring system, for obtaining biometric data of an eye, provided with the necessary calibration and check devices for monitoring the functionality and the calibration status. The ophthalmological measuring system includes an illumination source for illuminating an eye with light and with a sensor for recording and analyzing back-scattered or reflected light components and a controller. At least one calibration and check system integrated in the ophthalmological measuring system for monitoring the functional and calibration status is provided. A device is also provided which houses the calibration and test structures and which reads off the individual physical data therefrom by an interface. The ophthalmological measuring system is in particular provided for determining biometrical data but can also be used for ophthalmological, dermatological or other devices which require calibration and/or functional checking at regular intervals.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: March 3, 2015
    Assignee: Carl Zeiss Meditec AG
    Inventors: Gerard Antkowiak, Martin Hacker, Ingo Koschmieder, Roland Bergner, Ralf Ebersbach, Thomas Pabst, Eberhard Hofmann, Michael Guentzschel, Steffen Dubnack
  • Patent number: 8965065
    Abstract: Determination of biometric parameters of an eye, in which the optical axis of the biometric measurement system is aligned to the optical axis of an eye. The device includes an interferometry measuring arrangement having a measurement light source and a measurement sensor, a fixation light source for capturing the eye with the reflexes that arise, an image sensor, and lens for detecting volume scattered light and an analysis unit for determining the angular deviation of the optical axis of the eye from the optical axis of the biometric measurement system. The analysis unit compares determined angular deviation to a predefined tolerance and, laterally displaces fixation marks on the basis of the calculated angular deviation, or of initiating the biometric measurement.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: February 24, 2015
    Assignee: Carl Zeiss Meditec AG
    Inventors: Tobias Schmitt-Manderbach, Daniel Bublitz, Roland Bergner
  • Publication number: 20140375951
    Abstract: Combined equipment for non-contacting determination of axial length (AL), anterior chamber depth (VKT) and corneal curvature (HHK) of the eye, are also important for the selection of the intraocular lens IOL to be implanted, particularly the selection of an intraocular lens (IOL) to be implanted, preferably with fixation of the eye by means of a fixating lamp and/or illumination through light sources grouped eccentrically about the observation axis.
    Type: Application
    Filed: June 27, 2014
    Publication date: December 25, 2014
    Inventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
  • Publication number: 20140268057
    Abstract: A device for swept-source optical coherence domain reflectometry (SS OCDR) on moveable samples, particularly human eyes, for obtaining A-scans, having a measuring range according to the sample length and having a laser light source which can be adjusted by a main wave number k0 and at least one receiver for the light dissipated from the sample, wherein the sample is illuminated on the sample surface by a measurement beam having a diameter D by way of a coupling device. The light source has a spectral line width of ?k<168 m?1 and the adjustment of the light source is carried out in ?<44 s/(D*k0).
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Martin Hacker, Ralf Ebersbach, Thomas Pabst, Ulf Peterlein, Gerard Antkowiak, Roland Bergner, Ingo Koschmieder
  • Patent number: 8764192
    Abstract: An opthalmological measuring instrument, e.g. for determining the corneal curvature, anterior chamber depth, axial length, or the like, including measuring systems for determining measurement of the mentioned physical parameters. The measuring systems are connected to an evaluation unit which verifies whether quality parameters regarding the measurements are satisfied and generates a corresponding signal that indicates to the medical professional user that a proper measurement can be taken.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: July 1, 2014
    Assignee: Carl Zeiss Meditec AG
    Inventors: Roland Barth, Frank Behrendt, Roland Bergner, Klaus-Ditmar Voigt
  • Patent number: 8764195
    Abstract: Combined equipment for non-contacting determination of axial length (AL), anterior chamber depth (VKT) and corneal curvature (HHK) of the eye, are also important for the selection of the intraocular lens IOL to be implanted, particularly the selection of an intraocular lens (IOL) to be implanted, preferably with fixation of the eye by means of a fixating lamp and/or illumination through light sources grouped eccentrically about the observation axis.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: July 1, 2014
    Assignee: Carl Zeiss Meditec AG
    Inventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
  • Patent number: 8690330
    Abstract: A device for swept-source optical coherence domain reflectometry (SS OCDR) on moveable samples, particularly human eyes, for obtaining A-scans, having a measuring range according to the sample length and having a laser light source which can be adjusted by a main wave number k0 and at least one receiver for the light dissipated from the sample, wherein the sample is illuminated on the sample surface by a measurement beam having a diameter D by way of a coupling device. The light source has a spectral line width of ?k<168 m?1 and the adjustment of the light source is carried out in ?<44 s/(D*k0).
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: April 8, 2014
    Assignee: Carl Zeiss Meditec AG
    Inventors: Martin Hacker, Ralf Ebersbach, Thomas Pabst, Ulf Peterlein, Gerard Antkowiak, Roland Bergner, Ingo Koschmieder
  • Publication number: 20140078468
    Abstract: A system for determining the surface shape of the cornea of an eye by analyzing the reflection of a spatially distributed ring pattern. The system includes an element for generating a ring pattern, an illuminating unit, an image capturing unit, and a control and analyzing unit. The element for generating rings is a fresneled axicon with annular structures of different radii. Furthermore, an optical element for illuminating the entire surface of the fresneled axicon with plane waves and an optical element for separating the illuminating and detecting beam path are arranged between the illuminating unit and the fresneled axicon. Furthermore, the image capturing unit consisting of an imaging system and an image sensor is designed for a telecentric distance-independent image detection.
    Type: Application
    Filed: May 22, 2012
    Publication date: March 20, 2014
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Daniel Bublitz, Günter Rudolph, Martin Hacker, Tobias Bühren, Roland Bergner, Burkhard Wagner, Rico Fuchs
  • Publication number: 20130335706
    Abstract: The invention relates to a solution for interferometrically measuring the eye length and the anterior eye segment after the optical axis of the measuring system has been aligned with the optical axis of an eye. The device according to the invention for interferometrically measuring the eye length and the anterior eye segment consists of an illumination source, at least one interferometric measuring array with external reference, diverse optical imaging systems, and a control and evaluation unit. The illumination source has high spatial coherence and low coherence of time. Preferably, light is emitted by the illumination device from the NIR range, having a wavelength of 700-1000 nm, for example. Furthermore, an optical imaging system is arranged in front of the eye such that the illumination light impinges on the eye as a nearly collimated beam.
    Type: Application
    Filed: December 17, 2011
    Publication date: December 19, 2013
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Tobias Schmitt-Manderbach, Daniel Bublitz, Roland Bergner
  • 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
  • Patent number: 8408703
    Abstract: A spectrometer is described, especially for an optical coherence tomograph for detecting parameters of the human eye, with said spectrometer having an input for measurement radiation to be analyzed, fanning the measurement radiation spectrally out along a direction in a fan and guiding it onto a detector that extends along the direction and comprises a plurality of detector pixels that are sensitive to the measurement radiation, with the spectrometer having an adjusting element which can be adjusted in a controlled manner to adjust the relative position of the fan and the detector, thereby optimizing the incidence position of the fan on the detector, in which it is provided that the detector has at least two superimposed, adjacent pixel lines, and a control device is provided which reads out the superimposed pixels of a plurality of pixel lines in a combined manner for a spectral analysis of the measurement radiation in a pixel binning and evaluates signal differences between superimposed pixels to control th
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: April 2, 2013
    Assignee: Carl Zeiss Meditec AG
    Inventors: Martin Hacker, Roland Bergner, Ralf Ebersbach, Klaus-Ditmar Voigt, Roland Barth, Eberhard Hofmann, Peter Klopfleisch
  • Publication number: 20120287399
    Abstract: Combined equipment for non-contacting determination of axial length (AL), anterior chamber depth (VKT) and corneal curvature (HHK) of the eye, are also important for the selection of the intraocular lens IOL to be implanted, particularly the selection of an intraocular lens (IOL) to be implanted, preferably with fixation of the eye by means of a fixating lamp and/or illumination through light sources grouped eccentrically about the observation axis.
    Type: Application
    Filed: April 12, 2012
    Publication date: November 15, 2012
    Applicant: CARL ZEISS JENA GMBH
    Inventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
  • Publication number: 20110299038
    Abstract: An ophthalmological measuring system, for obtaining biometric data of an eye, provided with the necessary calibration and check devices for monitoring the functionality and the calibration status. The ophthalmological measuring system includes an illumination source for illuminating an eye with light and with a sensor for recording and analyzing back-scattered or reflected light components and a controller. At least one calibration and check system integrated in the ophthalmological measuring system for monitoring the functional and calibration status is provided. A device is also provided which houses the calibration and test structures and which reads off the individual physical data therefrom by an interface. The ophthalmological measuring system is in particular provided for determining biometrical data but can also be used for ophthalmological, dermatological or other devices which require calibration and/or functional checking at regular intervals.
    Type: Application
    Filed: November 4, 2009
    Publication date: December 8, 2011
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Gerard Antkowiak, Martin Hacker, Ingo Koschmieder, Roland Bergner, Ralf Ebersbach, Thomas Pabst, Eberhard Hofmann, Michael Guentzschel, Steffen Dubnack
  • Publication number: 20110255054
    Abstract: A device for swept-source optical coherence domain reflectometry (SS OCDR) on moveable samples, particularly human eyes, for obtaining A-scans, having a measuring range according to the sample length and having a laser light source which can be adjusted by a main wave number k0 and at least one receiver for the light dissipated from the sample, wherein the sample is illuminated on the sample surface by a measurement beam having a diameter D by way of a coupling device. The light source has a spectral line width of ?k<168 m?1 and the adjustment of the light source is carried out in ?<44 s/(D*k0).
    Type: Application
    Filed: December 21, 2009
    Publication date: October 20, 2011
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Martin Hacker, Ralf Ebersbach, Thomas Pabst, Ulf Peterlein, Gerard Antkowiak, Roland Bergner, Ingo Koschmieder
  • Patent number: 7992998
    Abstract: An ophthalmological measuring system for obtaining biometric data of an eye with a view to the pre-operative determination of a replacement lens or supplementary lens or refractive operations. The invention includes a combination of a measuring instrument based on ultrasound, an optical measuring instrument, and an evaluation unit, measuring values of the optical measuring instrument and/or of the measuring instrument based on ultrasound being used by the evaluation unit for determining the biometric data of an eye. Furthermore, keratometric and/or pachymetric measurements can also be carried out. The combination of different measuring systems enables a complete examination or diagnosis of a patient on a measuring table, so that the patient does not need to be moved, or have to come back at a later date for more measurements.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: August 9, 2011
    Assignee: Carl Zeiss Meditec AG
    Inventors: Roland Bergner, Ingo Koschmieder, Wilfried Bissmann