DEVICE FOR INTERFEROMETRICALLY MEASURING THE EYE LENGTH AND THE ANTERIOR EYE SEGMENT
    2.
    发明申请
    DEVICE FOR INTERFEROMETRICALLY MEASURING THE EYE LENGTH AND THE ANTERIOR EYE SEGMENT 有权
    用于间断测量眼睛长度和前庭眼部分的装置

    公开(公告)号:US20130335706A1

    公开(公告)日:2013-12-19

    申请号:US13995351

    申请日:2011-12-17

    IPC分类号: A61B3/10

    摘要: 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.

    摘要翻译: 本发明涉及一种用于在测量系统的光轴已经与眼睛的光轴对准之后干涉测量眼睛长度和前眼部分的解决方案。 根据本发明的用于干涉测量眼睛长度和前眼部分的装置由照明源,至少一个具有外部参考的干涉测量阵列,多种光学成像系统以及控制和评估单元组成。 照明源具有高空间相干性和低时间相干性。 优选地,照明装置例如从具有700-1000nm波长的NIR范围发射光。 此外,光学成像系统布置在眼睛的前方,使得照明光作为几乎准直的光束照射在眼睛上。

    OPTICAL COHERENCE REFLECTOMETRY WITH DEPTH RESOLUTION
    3.
    发明申请
    OPTICAL COHERENCE REFLECTOMETRY WITH DEPTH RESOLUTION 有权
    具有深度分辨率的光学相干反射测量

    公开(公告)号:US20110149245A1

    公开(公告)日:2011-06-23

    申请号:US13059039

    申请日:2009-08-11

    IPC分类号: A61B3/117 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.

    摘要翻译: 用于在眼睛上进行距离测量的装置。 该装置包括干涉仪,聚焦至少一个测量光束记录反向散射辐射,并且通过时域,频域或傅立叶域相干反射测量法干涉地产生显示眼睛结构的测量信号,具有横向和/或 轴向移动眼睛中的焦点或改变测量光束的偏振态,并具有启动干涉仪的控制装置,其中控制装置从后向散射辐射产生多个A扫描单个信号,将它们组合到A - 扫描测量信号,并且启动用于移动聚焦位置或用于改变偏振的调节装置,同时记录正在记录控制装置产生A扫描个体信号的反向散射辐射。

    Ophthalmological measuring system and method for determining the biometric data of an eye
    4.
    发明授权
    Ophthalmological measuring system and method for determining the biometric data of an eye 有权
    用于确定眼睛生物特征数据的眼科测量系统和方法

    公开(公告)号:US07794082B2

    公开(公告)日:2010-09-14

    申请号:US12096343

    申请日:2006-12-01

    IPC分类号: A61B3/10 A61B3/00 A61B8/00

    CPC分类号: A61B3/102

    摘要: 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.

    摘要翻译: 一种眼科测量系统,用于获得眼睛的生物特征数据,以便于术前确定替换镜片或辅助镜片或屈光手术。 本发明包括基于超声波的测量仪器,光学测量仪器和评估单元的组合,基于由评估单元用于确定生物特征的超声波测量光学测量仪器和/或测量仪器的值 眼睛的数据。 此外,还可以进行角膜测量和/或深度测量。 不同测量系统的组合使得能够对测量台上的患者进行完整的检查或诊断,使得患者不需要移动,或者必须在稍后再次进行更多的测量。

    Method for determining distances in the anterior ocular segment
    6.
    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

    IPC分类号: A61B3/10

    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。

    Ophthalmological measuring system and method for calibrating and/or adjusting the same
    8.
    发明授权
    Ophthalmological measuring system and method for calibrating and/or adjusting the same 有权
    眼科测量系统及其校准和/或调整方法

    公开(公告)号:US08967808B2

    公开(公告)日:2015-03-03

    申请号:US13127692

    申请日:2009-11-04

    IPC分类号: A61B3/10 A61B3/00 A61B5/117

    摘要: 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.

    摘要翻译: 一种用于获得眼睛生物特征数据的眼科测量系统,其具有必要的校准和检查装置,用于监视功能和校准状态。 眼科测量系统包括用于用光照射眼睛的照明源和用于记录和分析反向散射或反射光分量的传感器以及控制器。 提供集成在眼科测量系统中的至少一个校准和检查系统,用于监视功能和校准状态。 还提供一种装置,其容纳校准和测试结构,并且通过界面从其读出各个物理数据。 眼科测量系统特别用于确定生物数据,但也可用于需要定期进行校准和/或功能检查的眼科,皮肤病学或其他装置。

    Device and Method for Axial Length Measurement Having Expanded Measuring Function in the Anterior Eye Segment
    9.
    发明申请
    Device and Method for Axial Length Measurement Having Expanded Measuring Function in the Anterior Eye Segment 审中-公开
    在前眼部扩张测量功能的轴向长度测量的装置和方法

    公开(公告)号:US20100271594A1

    公开(公告)日:2010-10-28

    申请号:US12595592

    申请日:2008-03-28

    IPC分类号: A61B3/117 A61B3/14

    摘要: The present invention is directed to a solution for measuring geometric parameters in the eye which are required for calculating the refractive power of intraocular lenses. The device according to the invention for axial length measurement which acquires axial length, anterior corneal radii, anterior chamber depth, and other parameters in the anterior eye segment includes a control unit, a first measuring device for determining axial length, and an additional measuring device which acquires a plurality of structures in the anterior segment (such as the cornea, anterior chamber, and lens) and which has at least one illumination unit and at least one image recording unit. By determining additional partial-distance parameters of the anterior eye segments, the IOL can be calculated with high precision even after refractive surgery in which the natural relationship between the radii of the anterior and posterior corneal surfaces is extensively altered by corneal surgery.

    摘要翻译: 本发明涉及一种用于测量眼内几何参数的解决方案,其是计算眼内透镜的屈光度所需的。 根据本发明的用于轴向长度测量的装置,其获取前眼部分中的轴向长度,前角膜半径,前房深度和其他参数包括控制单元,用于确定轴向长度的第一测量装置和附加测量装置 其获取前段(例如角膜,前房和透镜)中的多个结构,并且具有至少一个照明单元和至少一个图像记录单元。 通过确定前眼部分的额外部分距离参数,即使在屈光手术之后,也可以以高精度计算出IOL,其中前角膜和后角膜表面的半径之间的自然关系被角膜手术广泛改变。

    Testing and calibrating device for optical eye length measurement instruments
    10.
    发明授权
    Testing and calibrating device for optical eye length measurement instruments 失效
    光学眼长测量仪器的测试和校准装置

    公开(公告)号:US06481847B1

    公开(公告)日:2002-11-19

    申请号:US09631517

    申请日:2000-08-03

    IPC分类号: A61B300

    CPC分类号: A61B3/1005

    摘要: A testing and calibrating device for optical eye length measurement devices comprising two plano-convex lenses which are arranged in the illumination beam path so as to be oppositely oriented. A neutral filter with a defined transmission is located between these two plano-convex lenses.

    摘要翻译: 一种用于光学眼长测量装置的测试和校准装置,包括布置在照明光束路径中以相对定向的两个平凸透镜。 具有限定透镜的中性滤光片位于这两个平凸透镜之间。