Patents by Inventor Axel Doering
Axel Doering 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: 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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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: 8224050Abstract: A method for creating or calculating panoramic images of the eye fundus particularly from images of a fundus camera. In the method a pre-positioning process is carried out in which a first variable is determined for geometrically associating the images with each other. An anchor image is determined as a reference for the first variables for the geometric association; areas that are associated with each other are determined in the anchor image and the other images by a block-matching algorithm; transformation parameters for a geometric transformation between the anchor image and the other images are determined from the mutual position of the associated areas; and the other images are transformed onto the anchor image by transformation parameters and are superimposed onto the anchor image and among each other.Type: GrantFiled: July 19, 2007Date of Patent: July 17, 2012Assignee: Carl Zeiss Meditec AGInventors: Axel Doering, Michael Trost, Daniel Baumgarten
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Publication number: 20110058715Abstract: A method for creating or calculating panoramic images of the eye fundus particularly from images of a fundus camera. In the method a pre-positioning process is carried out in which a first variable is determined for geometrically associating the images with each other. An anchor image is determined as a reference for the first variables for the geometric association; areas that are associated with each other are determined in the anchor image and the other images by a block-matching algorithm; transformation parameters for a geometric transformation between the anchor image and the other images are determined from the mutual position of the associated areas; and the other images are transformed onto the anchor image by transformation parameters and are superimposed onto the anchor image and among each other.Type: ApplicationFiled: July 19, 2007Publication date: March 10, 2011Applicant: CARL ZEISS MEDITEC AGInventors: Axel Doering, Michael Trost, Daniel Baumgarten
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Publication number: 20100023772Abstract: A method for generating an access code for a device or system. The one-time access code generated by the method for the device or system is valid only once. The method can be used for supplying goods or services by means of automatic or semiautomatic access control devices or systems, for example.Type: ApplicationFiled: July 19, 2007Publication date: January 28, 2010Applicant: CARL ZEISS MEDITEC AGInventor: Axel Doering
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Publication number: 20090241184Abstract: A method for generating an access code to a medical device including a memory for patient data, the access code being valid only once. According to the method, a query key is generated from a device-internal identification and is transmitted to an authorization entity. The authorization entity generates an associated release key from the query key. The release key grants access and modifies the internal identification when the release key is entered into the device such that the access code cannot be used a second time.Type: ApplicationFiled: July 19, 2007Publication date: September 24, 2009Applicant: CARL ZEISS MEDITEC AGInventor: Axel Doering
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Patent number: 7533991Abstract: The present invention is directed to an arrangement and a method for eye examination and/or for determining biometric eye data in which the movement of the eyes is compensated through the use of an eye tracker unit. The arrangement comprises a controllable digital illumination unit and an observation system which are arranged on separate supporting arms. A central control unit has connections to an image recording unit, an optical imaging system, an eye tracker unit and an output unit. Further, transmitter elements and/or actuating drives are provided at the separate supporting arms, at the zoom system and at the magnification changer. The examination can be adapted in an optimal manner to the task at hand by means of the structured illumination patterns that can be generated in a variable manner. Detection of all adjusting parameters relevant for recording can be used for calculations and for reconstructing the pertinent observation conditions. In case of repeated examinations for determining changes, e.g.Type: GrantFiled: November 13, 2003Date of Patent: May 19, 2009Assignee: Carl Zeiss Meditec AGInventors: Oliver Baumann, Michael Claus, Axel Doering, Ingo Koschmieder, Thomas Schulze, Bernd Spruck
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Patent number: 7413305Abstract: An arrangement and method for positioning an ophthalmologic device with respect to the patient's eye to be examined in x-, y- and/or z-coordinates. The device includes a controllable illumination unit, an observation system, an image recording unit, a central control unit, an output unit, an eye tracker unit, and a device for relative positioning. The imaging system of the eye tracker unit has at least two different adjustable magnifications. In positioning the ophthalmologic device, the signal of the eye tracker unit is used to track a measuring mark and/or grid structure projected on the eye, and also to detect the position of the patient's eye with respect to the optical axis of the ophthalmologic device. The inventive solution makes it possible to automatically position the entire device with respect to the eye to be examined, thus simplifying examination and accelerating determination of biometric data.Type: GrantFiled: October 28, 2003Date of Patent: August 19, 2008Assignee: Carl Zeiss Meditec AGInventors: Oliver Baumann, Michael Claus, Axel Doering, Ingo Koschmieder, Thomas Schulze, Bernd Spruck
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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: 20060152676Abstract: The present invention is directed to an arrangement and a method for eye examination and/or for determining biometric eye data in which the movement of the eyes is compensated through the use of an eye tracker unit. The arrangement comprises a controllable digital illumination unit and an observation system which are arranged on separate supporting arms. A central control unit has connections to an image recording unit, an optical imaging system, an eye tracker unit and an output unit. Further, transmitter elements and/or actuating drives are provided at the separate supporting arms, at the zoom system and at the magnification changer. The examination can be adapted in an optimal manner to the task at hand by means of the structured illumination patterns that can be generated in a variable manner. Detection of all adjusting parameters relevant for recording can be used for calculations and for reconstructing the pertinent observation conditions. In case of repeated examinations for determining changes, e.g.Type: ApplicationFiled: November 13, 2003Publication date: July 13, 2006Inventors: Oliver Baumann, Michael Claus, Axel Doering, Ingo Koschmieder, Thomas Schulze, Bernd Spruck
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Publication number: 20060146283Abstract: The present invention is directed to an arrangement and method for positioning the device with respect to the patient's eye to be examined in x-, y- and/or z-coordinates. The ophthalmologic device comprises a controllable illumination unit, an observation system, an image recording unit, a central control unit, an output unit, an eye tracker unit, and means for relative positioning. The imaging system of the eye tracker unit has at least two different adjustable magnifications. In the method for positioning the ophthalmologic device, the signal of the eye tracker unit is used not only to track a measuring mark and/or grid structure projected on the eye but also to detect the position of the patient's eye with respect to the optical axis of the ophthalmologic device. The solution proposed with the ophthalmologic device according to the invention makes it possible to automatically position the entire device with respect to the eye to be examined.Type: ApplicationFiled: October 28, 2003Publication date: July 6, 2006Inventors: Oliver Baumann, Michael Claus, Axel Doering, Ingo Koschmieder, Thomas Schulze, Bernd Spruck
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Publication number: 20050171974Abstract: Method and arrangement for evaluating images recorded with a fundus camera, wherein deviations from a stored comparison image and/or from a standard image created by evaluating a plurality of comparison images are determined, and/or a similarity analysis is carried out by means of a stored comparison image and/or by means of a standard image created by evaluating a plurality of comparison images.Type: ApplicationFiled: February 28, 2003Publication date: August 4, 2005Inventor: Axel Doering
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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