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1. 发明授权

EP2346386B1 TIEFENAUFLÖSENDE OPTISCHE KOHÄRENZREFLEKTOMETRIE 有权
标题翻译：低分辨率光学KOHÄRENZREFLEKTOMETRIE
公开(公告)号：EP2346386B1
公开(公告)日：2013-04-10
申请号：EP09777799.9
申请日：2009-08-11
申请人： Carl Zeiss Meditec AG
发明人： HACKER, Martin , BARTH, Roland , BERGNER, Roland , BISSMANN, Wilfried , VON BÜNAU, Rudolf , EBERSBACH, Ralf , KOSCHMIEDER, Ingo , FERCHER, Adolf, Friedrich , GRAJCIAR, Branislav
IPC分类号： A61B3/10
CPC分类号： A61B3/1005
摘要： 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.

2. 发明公开

EP2346386A2 TIEFENAUFLÖSENDE OPTISCHE KOHÄRENZREFLEKTOMETRIE 有权
标题翻译：低分辨率光学KOHÄRENZREFLEKTOMETRIE
公开(公告)号：EP2346386A2
公开(公告)日：2011-07-27
申请号：EP09777799.9
申请日：2009-08-11
申请人： Carl Zeiss Meditec AG
发明人： HACKER, Martin , BARTH, Roland , BERGNER, Roland , BISSMANN, Wilfried , VON BÜNAU, Rudolf , EBERSBACH, Ralf , KOSCHMIEDER, Ingo , FERCHER, Adolf, Friedrich , GRAJCIAR, Branislav
IPC分类号： A61B3/10
CPC分类号： A61B3/1005
摘要： 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.

3. 发明公开

EP1781161A1 FOURIER-DOMAIN OCT RAY-TRACING AM AUGE 有权
标题翻译：奥地利十字路口太空追踪
公开(公告)号：EP1781161A1
公开(公告)日：2007-05-09
申请号：EP05769744.3
申请日：2005-07-26
申请人： Carl Zeiss Meditec AG
发明人： FERCHER, Adolf, Friedrich
IPC分类号： A61B3/107 , A61B3/103
CPC分类号： A61B3/102 , A61B3/103
摘要： The invention relates to an ophthalmologic measuring method that can depict three-dimensional structures of the interfaces of an eye by means of low coherence interferometry based on reference points. To this end, the pupil is illuminated at a number of points by a low coherence light source (1). The measurement radiation (18) reflected at these points by the interfaces and surfaces of the eye (13) is superimposed with a reference radiation (17). The measurement data generated hereby are spectrally split up by a diffraction grating (16), projected onto a two-dimensional detector array (15), and routed to a control unit that determines a three-dimensional structure of all intraocular interfaces and surfaces of the eye (13). During the inventive Fourier domain OCT method, the depiction of the three-dimensional structures preferably ensues by means of spline surfaces or polygonal surfaces. This makes it possible to determine the depth positions of the measuring beams at many pupil points with a single image taken by the array camera by illuminating the pupil with an aperture grid, and the reference mirror contains a periodic phase grid.

4. 发明授权

EP1713378B1 KURZKOHÄRENZ-INTERFEROMETRISCHE LÄNGENMESSUNG AM AUGE 有权
标题翻译：短相干干涉测量长度测量EYES ON
公开(公告)号：EP1713378B1
公开(公告)日：2013-05-08
申请号：EP05726333.7
申请日：2005-02-04
申请人： Carl Zeiss Meditec AG
发明人： FERCHER, Adolf, Friedrich
IPC分类号： A61B3/10 , A61B3/12 , G01B9/02 , G01B11/14
CPC分类号： A61B3/102

5. 发明公开

EP1844294A1 VORRICHTUNG ZUR POSITIONSBESTIMMUNG VONEINANDER DISTANZIERTER BEREICHE IN TRANSPARENTEN UND/ODER DIFFUSEN OBJEKTEN 审中-公开
标题翻译： DEVICE用于确定透明和/或漫射物体隔开区域的位置
公开(公告)号：EP1844294A1
公开(公告)日：2007-10-17
申请号：EP06706467.5
申请日：2006-01-28
申请人： Carl Zeiss Meditec AG
发明人： FERCHER, Adolf, Friedrich
IPC分类号： G01B9/02 , G01N21/47 , A61B3/10
CPC分类号： G01B9/02028 , A61B3/1005 , G01B9/02058 , G01B9/0209 , G01B2290/35
摘要： The invention relates to a device for determining the thickness, distance, and/or profile of spaced-apart areas of a transparent and/or diffuse object, especially for measuring distances in an eye. A scanning unit (2) comprising a scanning table (5) which is translationally movable in adequate guides is disposed in the reference beam path or measuring beam path of said position determining device that uses an interferometer array according to the Michelson principle in order to modify the path length, the direction of travel of the scanning table (5) enclosing an angle a relative to the reference beam (1). At least two reference mirrors (3, 4) which are located at a distance d from each other in the direction of the reference beam (1) while slightly overlapping in a lateral direction are arranged on the scanning table (5) such that the reference beam (1) is first reflected by the first reference mirror (3) and then by the second reference mirror (4) during the motor-driven oscillating movement of the scanning table (5).

6. 发明公开

EP1713378A1 KURZKOHÄRENZ-INTERFEROMETRISCHE LÄNGENMESSUNG AM AUGE 有权
标题翻译：短相干干涉测量长度测量EYES ON
公开(公告)号：EP1713378A1
公开(公告)日：2006-10-25
申请号：EP05726333.7
申请日：2005-02-04
申请人： Carl Zeiss Meditec AG
发明人： FERCHER, Adolf, Friedrich
IPC分类号： A61B3/10 , A61B3/12 , G01B9/02 , G01B11/14
CPC分类号： A61B3/102
摘要： The short-coherence interferometric measurement of length on the eye has two drawbacks. First, the working focus and coherence window do not, for the most part, coincide. Second, the scanning process along the eye axis requires time. Both result in poor signal quality and inaccurate measurements. The invention provides a short-coherence interferometer, in which a 90 degree mirror and focusing optics, together, execute a periodic to-and-fro movement in such a manner that the working beam focus, which is created by the focusing optics and projected onto the eye by relay optics, is synchronously moved with the coherence window from the cornea along the optical axis of the eye to the fovea centralis. In addition, different wavelengths are, by means of a number of reflectors, generated in the working beam paths and reference beam paths whereby limiting the scanning process to distances shorter than the optical length of the eye. The invention is advantageously implemented by using a fiber-optic interferometer. The inventively designed reference interferometer arms and measuring interferometer arms are combined with the arms of a fiber-optic interferometer.

7. 发明授权

EP1959816B1 INTERFEROMETRISCHE PROBENMESSUNG 有权转让
标题翻译：干涉测量样品测量
公开(公告)号：EP1959816B1
公开(公告)日：2011-07-20
申请号：EP06829365.3
申请日：2006-12-06
申请人： Carl Zeiss Meditec AG
发明人： FERCHER, Adolf, Friedrich , LEITGEB, Rainer
IPC分类号： A61B3/10 , G01B9/02
CPC分类号： G01B9/02004 , A61B3/102 , G01B9/02019 , G01B9/02028 , G01B9/02044 , G01B9/02058 , G01B9/02091 , G01B2290/45 , G01B2290/70
摘要： The invention relates to a device for the interferometric measurement of a sample, in particular the eye, comprising an interferometer arrangement which comprises a first measurement beam path, through which a measurement beam falls onto the sample, and a first reference beam path, through which a reference beam runs, which is applied to the measuring beam for interference. The interferometer arrangement comprises a second measuring beam path and/or second reference beam path, whereby the optical wave lengths thereof are different from one of the first beam paths. The wave length difference is selected according to a distance of two measuring areas which are arranged at a distance in the depth direction of the sample.

8. 发明授权

EP1781161B1 FOURIER-DOMAIN OCT RAY-TRACING AM AUGE 有权
标题翻译：傅里叶域OCT光线追踪EYES ON
公开(公告)号：EP1781161B1
公开(公告)日：2010-02-10
申请号：EP05769744.3
申请日：2005-07-26
申请人： Carl Zeiss Meditec AG
发明人： FERCHER, Adolf, Friedrich
IPC分类号： A61B3/107 , A61B3/103
CPC分类号： A61B3/102 , A61B3/103

9. 发明公开

EP1959816A2 INTERFEROMETRISCHE PROBENMESSUNG 有权转让
公开(公告)号：EP1959816A2
公开(公告)日：2008-08-27
申请号：EP06829365.3
申请日：2006-12-06
申请人： Carl Zeiss Meditec AG
发明人： FERCHER, Adolf, Friedrich , LEITGEB, Rainer
IPC分类号： A61B3/10 , G01B9/02
CPC分类号： G01B9/02004 , A61B3/102 , G01B9/02019 , G01B9/02028 , G01B9/02044 , G01B9/02058 , G01B9/02091 , G01B2290/45 , G01B2290/70
摘要： The invention relates to a device for the interferometric measurement of a sample, in particular the eye, comprising an interferometer arrangement which comprises a first measurement beam path, through which a measurement beam falls onto the sample, and a first reference beam path, through which a reference beam runs, which is applied to the measuring beam for interference. The interferometer arrangement comprises a second measuring beam path and/or second reference beam path, whereby the optical wave lengths thereof are different from one of the first beam paths. The wave length difference is selected according to a distance of two measuring areas which are arranged at a distance in the depth direction of the sample.

10. 发明公开

EP1587415A1 VERFAHREN UND ANORDNUNG ZUR MESSUNG DER DISPERSION IN TRANSPARENTEN MEDIEN 审中-公开
标题翻译：方法和装置，用于测量透明介质中的分散
公开(公告)号：EP1587415A1
公开(公告)日：2005-10-26
申请号：EP03785827.1
申请日：2003-12-16
申请人： Carl Zeiss Meditec AG
发明人： FERCHER, Adolf, Friedrich
IPC分类号： A61B5/00
CPC分类号： A61B5/1455 , A61B5/14532
摘要： The invention relates to methods and assemblies for measuring a dispersion and content of glucose in organic transparent and semitransparent tissues and liquids by low-coherent interference optical refractometry. Low-coherent interferometry and spectral interferometry methods are modified in such a way that a tissue thickness and local dispersion are measurable. For a technology based on low-coherent interferometry, partial interferograms received from low-coherent interferograms G (τ) are used for a dispersion measurement. For a technology based on spectral interferometry, the partial areas of a spectrum φ of a spectral interferogram are used for a dispersion measurement. The figure 6 displays an assembly based on spectral interferometry. A time-dependent low-coherent light source (1) illuminates a modified Michelson interferometer. A beam splitter (4) splits an illuminant beam into a measuring beam (5) and a reference beam (6). Light waves (46 and 6) reflected outside the interferometer reach a spectrometer at the exit of the interferometer. The recorded spectral interferogram i (φ) provides with a basis for calculating the dispersions of different waves. The viewing direction of the eye of a subject who makes said calculation is fixed by means of a target beam (32).

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