Patents by Inventor Klaus-Ditmar Voigt
Klaus-Ditmar Voigt 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).
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Patent number: 9504381Abstract: 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: GrantFiled: June 27, 2014Date of Patent: November 29, 2016Assignee: Carl Zeiss Meditec AGInventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
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Publication number: 20140375951Abstract: 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: ApplicationFiled: June 27, 2014Publication date: December 25, 2014Inventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
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Patent number: 8764192Abstract: 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: GrantFiled: November 13, 2007Date of Patent: July 1, 2014Assignee: Carl Zeiss Meditec AGInventors: Roland Barth, Frank Behrendt, Roland Bergner, Klaus-Ditmar Voigt
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Patent number: 8764195Abstract: 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: GrantFiled: April 12, 2012Date of Patent: July 1, 2014Assignee: Carl Zeiss Meditec AGInventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
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Patent number: 8408703Abstract: 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 thType: GrantFiled: September 24, 2008Date of Patent: April 2, 2013Assignee: Carl Zeiss Meditec AGInventors: Martin Hacker, Roland Bergner, Ralf Ebersbach, Klaus-Ditmar Voigt, Roland Barth, Eberhard Hofmann, Peter Klopfleisch
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Publication number: 20120287399Abstract: 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: ApplicationFiled: April 12, 2012Publication date: November 15, 2012Applicant: CARL ZEISS JENA GMBHInventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
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Patent number: 7887185Abstract: The invention is directed to an arrangement and a method for measuring the anterior segment of the eye using interferometric means. The eye is illuminated by a convergent beam bundle and aligned with the optical axis of the measuring device by generating directional stimuli and accommodation stimuli by means of a display which is mirrored into the beam path.Type: GrantFiled: May 5, 2008Date of Patent: February 15, 2011Assignee: Carl Zeiss Meditec AGInventors: Roland Barth, Roland Bergner, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Eberhard Hofmann, Gert Stober, Peter Klopfleisch
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Publication number: 20100214533Abstract: A spectrometer is described, especially for an optical coherence tomograph (1) 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 (2) having an adjusting element (5) which can be adjusted in a controlled manner to adjust the relative position of the fan and the detector (8), thereby optimizing the incidence position (F) of the fan on the detector (8), in which it is provided that the detector (8) has at least two superimposed, adjacent pixel lines, and a control device (9) 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 sType: ApplicationFiled: September 24, 2008Publication date: August 26, 2010Applicant: CARL ZEISS MEDITEC AGInventors: Martin Hacker, Roland Bergner, Ralf Ebersbach, Klaus-Ditmar Voigt, Roland barth, Eberhard Hofmann, Peter Klopfleisch
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Publication number: 20100053554Abstract: The invention relates to an opthalmological measuring instrument, e.g. for determining the corneal curvature, anterior chamber depth, axial length, or the like, comprising measuring systems for determining said variables. 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 user that a proper measurement can be taken.Type: ApplicationFiled: November 13, 2007Publication date: March 4, 2010Applicant: CARL ZEISS MEDITEC AGInventors: Roland Barth, Frank Behrendt, Roland Bergner, Klaus-Ditmar Voigt
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Publication number: 20080252852Abstract: The invention is directed to an arrangement and a method for measuring the anterior segment of the eye using interferometric means. The eye is illuminated by a convergent beam bundle and aligned with the optical axis of the measuring device by generating directional stimuli and accommodation stimuli by means of a display which is mirrored into the beam path.Type: ApplicationFiled: May 5, 2008Publication date: October 16, 2008Inventors: Ronald Barth, Ronald Bergner, Klaus-Ditmar Voigt, Frank Behrendt, Burkard Dietzel, Eberhard Hofmann, Gert Stober, Peter Klopfleisch
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Patent number: 7380939Abstract: The invention is directed to an arrangement and a method for measuring the anterior segment of the eye using interferometric means. The eye is illuminated by a convergent beam bundle and aligned with the optical axis of the measuring device by generating directional stimuli and accommodation stimuli by means of a display which is mirrored into the beam path.Type: GrantFiled: May 14, 2004Date of Patent: June 3, 2008Assignee: Carl Zeiss Meditec AGInventors: Roland Barth, Roland Bergner, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Eberhard Hofmann, Gert Stober, Peter Klopfleisch
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Publication number: 20080111972Abstract: 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: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Applicant: CARL ZEISS MEDITEC AGInventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
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Patent number: 7322699Abstract: 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: GrantFiled: August 10, 2004Date of Patent: January 29, 2008Assignee: Carl Zeiss Meditec AGInventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
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Patent number: 7284858Abstract: The invention relates to a method for determining distances in the anterior ocular segment, preferably of the pupils and/or the diameter of the iris, wherein the image of at least part of the eye is recorded and digitized using an imaging device and an array for illuminating the eye. On the basis of said digital image, a center of gravity analysis and the determination of the central point are carried out, especially for the position of the pupils, by conducting an intensity and threshold analysis as rough determination. Based on said rough determination, a fine detection of the position of the edges of the pupil and/or the edges of the iris is carried out. Additionally, the angle between the visual axis and the optical axis of the eye can be determined from the position of a fixed reflection to the center of the pupil and/or the center of the iris.Type: GrantFiled: February 16, 2002Date of Patent: October 23, 2007Assignee: Carl Zeiss Meditec AGInventors: Roland Bergner, Roland Barth, Axel Doering, Frank Behrend, Klaus-Ditmar Voigt
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Publication number: 20070052925Abstract: The invention is directed to an arrangement and a method for measuring the anterior segment of the eye using interferometric means. The eye is illuminated by a convergent beam bundle and aligned with the optical axis of the measuring device by generating directional stimuli and accommodation stimuli by means of a display which is mirrored into the beam path.Type: ApplicationFiled: May 14, 2004Publication date: March 8, 2007Inventors: Roland Barth, Roland Bergner, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Eberhard Hofmann, Gert Stober, Peter Klopfleisch
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Publication number: 20050018137Abstract: 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: ApplicationFiled: August 10, 2004Publication date: January 27, 2005Inventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
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Patent number: 6779891Abstract: 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: GrantFiled: October 1, 2001Date of Patent: August 24, 2004Assignee: Carl Zeiss Jena GmbHInventors: Roland Barth, Roland Bergner, Lothar Mueller, Dietmar Steinmetz, Siegfried Schubert, Klaus-Ditmar Voigt, Frank Behrendt, Burkhard Dietzel, Axel Doering
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Publication number: 20040070728Abstract: The invention relates to a method for determining distances in the anterior ocular segment, preferably of the pupils and/or the diameter of the iris, wherein the image of at least part of the eye is recorded and digitized using an imaging device and an array for illuminating the eye. On the basis of said digital image, a center of gravity analysis and the determination of the central point are carried out, especially for the position of the pupils, by conducting an intensity and threshold analysis as rough determination. Based on said rough determination, a fine detection of the position of the edges of the pupil and/or the edges of the iris is carried out. Additionally, the angle between the visual axis and the optical axis of the eye can be determined from the position of a fixed reflection to the center of the pupil and/or the center of the iris.Type: ApplicationFiled: August 18, 2003Publication date: April 15, 2004Inventors: Roland Bergner, Roland Barth, Axel Doering, Frank Behrend, Klaus-Ditmar Voigt
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Patent number: 6325513Abstract: An arrangement for use with a device that determines subjective refraction and/or performs other visual functions, comprises at least one light source, at least one light modulator for modulating the light source to produce modulated light, a driving unit for controlling said modulator to modulate the light source in accordance with video information corresponding to a video image, a two-dimensional deflector for deflecting the modulated light to produce a two-dimensional image, an optical transmitter for optically transmitting the light of the light source, and an optical projector for optically projecting the two-dimensional image onto a retina of an eye to be examined.Type: GrantFiled: September 8, 2000Date of Patent: December 4, 2001Assignee: Carl Zeiss Jena GmbHInventors: Roland Bergner, Klaus-Ditmar Voigt
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Patent number: 6149272Abstract: An arrangement for use with a device that determines subjective refraction and/or performs other visual functions, comprises at least one light source, at least one light modulator for modulating the light source to produce modulated light, a driving unit for controlling said modulator to modulate the light source in accordance with video information corresponding to a video image, a two-dimensional deflector for deflecting the modulated light to produce a two-dimensional image, an optical transmitter for optically transmitting the light of the light source, and an optical projector for optically projecting the two-dimensional image onto a retina of an eye to be examined.Type: GrantFiled: June 20, 1997Date of Patent: November 21, 2000Assignee: Carl Zeiss Jena GmbHInventors: Roland Bergner, Klaus-Ditmar Voigt