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    Method for determining distances in the anterior ocular segment
    1.
    发明授权
    Method for determining distances in the anterior ocular segment 有权
    确定前眼部段距离的方法

    公开(公告)号：US07284858B2

    公开(公告)日：2007-10-23

    申请号：US10468241

    申请日：2002-02-16

    申请人： Roland Bergner ,  Roland Barth ,  Axel Doering ,  Frank Behrend ,  Klaus-Ditmar Voigt

    发明人： Roland Bergner ,  Roland Barth ,  Axel Doering ,  Frank Behrend ,  Klaus-Ditmar Voigt

    IPC分类号： A61B3/10

    CPC分类号： A61B3/113 ,  A61B3/1005 ,  A61B3/112

    摘要： 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.

    摘要翻译： 本发明涉及一种用于确定前眼部段，优选瞳孔和/或虹膜直径的距离的方法，其中至少部分眼睛的图像使用成像装置和阵列进行记录和数字化 照亮眼睛。 在所述数字图像的基础上，通过进行强度和阈值分析作为粗略确定，进行重心分析和中心点的确定，特别是对于瞳孔的位置。 基于所述粗略确定，执行对光瞳边缘和/或虹膜边缘的位置的精细检测。 此外，可以从固定反射到瞳孔中心和/或虹膜中心的位置确定视轴和眼睛的光轴之间的角度。

    Spectrometer
    9.
    发明授权
    Spectrometer 有权
    光谱仪

    公开(公告)号：US08408703B2

    公开(公告)日：2013-04-02

    申请号：US12680574

    申请日：2008-09-24

    申请人： Martin Hacker ,  Roland Bergner ,  Ralf Ebersbach ,  Klaus-Ditmar Voigt ,  Roland Barth ,  Eberhard Hofmann ,  Peter Klopfleisch

    发明人： Martin Hacker ,  Roland Bergner ,  Ralf Ebersbach ,  Klaus-Ditmar Voigt ,  Roland Barth ,  Eberhard Hofmann ,  Peter Klopfleisch

    IPC分类号： A61B3/14 ,  A61B3/00

    CPC分类号： A61B3/1225 ,  A61B3/102 ,  A61B3/12 ,  G01J3/02 ,  G01J3/0289 ,  G01J3/453 ,  G01J3/4535

    摘要： 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 the adjusting element and to center the incidence position of the fan at a right angle to the direction of the pixel lines.

    摘要翻译： 描述了一种光谱仪，特别是对于用于检测人眼参数的光学相干断层扫描仪，其中所述光谱仪具有用于待分析的测量辐射的输入，沿着风扇中的方向频谱地扫射测量辐射并将其引导到检测器 其沿着该方向延伸并且包括对测量辐射敏感的多个检测器像素，其中光谱仪具有调节元件，该调节元件可以以受控的方式调节以调节风扇和检测器的相对位置，从而优化 检测器上的风扇的入射位置，其中提供检测器具有至少两个叠加的相邻像素线，并且提供控制装置，其以组合方式读出多个像素线的叠加像素，用于 对像素合并中的测量辐射进行光谱分析，并评估叠加之间的信号差异 sed像素以控制调节元件并使风扇的入射位置与像素线的方向成直角。