Arrangement and method for illumination in a stereoscopic ophthalmic
microscope
    1.
    发明授权
    Arrangement and method for illumination in a stereoscopic ophthalmic microscope 失效
    立体眼科显微镜照明的布置和方法

    公开(公告)号:US5943118A

    公开(公告)日:1999-08-24

    申请号:US53277

    申请日:1998-04-01

    IPC分类号: A61B3/135 A61B3/02

    CPC分类号: A61B3/135

    摘要: Ophthalmic device, such as a slit lamp or a visual acuity testing device or a combination of these devices, for variable illumination of the patient's eye with illumination fields of different geometries, wherein the illumination of the patient's eye is generated by means of chip components which are controllable electronically with respect to their light transparency, light reflection or light emission and which are illuminated by reflected light or transmitted light or are self-illuminating.

    摘要翻译: 眼科装置,例如裂隙灯或视敏度测试装置或这些装置的组合,用于利用不同几何形状的照明场可变照明患者眼睛,其中通过芯片组件产生患者眼睛的照明, 相对于它们的光透明度,光反射或光发射而被电子控制,并且被反射光或透射光照射或被自发光照射。

    Ophthalmological examination instrument and method for operation thereof
    2.
    发明授权
    Ophthalmological examination instrument and method for operation thereof 失效
    眼科检查仪及其操作方法

    公开(公告)号:US5914770A

    公开(公告)日:1999-06-22

    申请号:US880078

    申请日:1997-06-20

    摘要: An ophthalmological examination device, especially a slit lamp or a fundus camera, for observing a patient's eye, with at least one image recording unit such as a video camera or a CCD-chip for recording at least a part of the image of the eye generated by the examination device, and with a device for transmitting the electric signals of the video camera or CCD-chip to an image generating unit connected with the head of the observer.In an advantageous manner, it is possible to superimpose on a first image generated from the electric signals of an image recording unit additional information generated by a computer via the image generating unit, at least for one eye of the observer, and/or to display a second image to the observer, which second image is modified with respect to color, contrast or other image features, as an additional image superimposed on the other respective eye or on the first image for one or both eyes of the observer. The additional information comprises stored images and/or stored previous recordings and/or physiological data on the patient.

    摘要翻译: 用于观察患者眼睛的眼科检查装置,特别是裂隙灯或眼底照相机,至少一个图像记录单元,例如摄像机或CCD芯片,用于记录生成的眼睛的图像的至少一部分 通过检查装置,以及用于将摄像机或CCD芯片的电信号发送到与观察者的头部连接的图像生成单元的装置。 以有利的方式,可以至少对于观察者的一只眼睛,叠加在由计算机经由图像生成单元生成的图像记录单元的电信号产生的第一图像上和/或显示 观察者的第二图像,该第二图像相对于颜色,对比度或其他图像特征被修改,作为叠加在另一个眼睛上的附加图像或者观察者的一只或两只眼睛的第一图像上。 附加信息包括存储的图像和/或存储的先前记录和/或患者的生理数据。

    Method for determining distances in the anterior ocular segment
    4.
    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。

    Method for a non-retarded shutter release of rotary shutters in
photogrammetric aerial cameras
    6.
    发明授权
    Method for a non-retarded shutter release of rotary shutters in photogrammetric aerial cameras 失效
    摄影测量航空摄像机中旋转百叶窗的非延迟快门释放方法

    公开(公告)号:US4616911A

    公开(公告)日:1986-10-14

    申请号:US738313

    申请日:1985-05-28

    IPC分类号: G01C11/02 G03B9/10 G03B29/00

    CPC分类号: G01C11/02 G03B9/10

    摘要: The invention relates to a method for a non-retarded shutter release of a rotary sector shutter, particularly for use in photogrammetrical aerial cameras comprising a computer means which via a control means for rotating the rotary sectors of the shutter sets the latter to a rate of rotations in a manner that the time of photograph sequence is a multiple integer of the time interval between two feasible open times of the shutter. Probable incorrect exposures are eliminated by a variation of the diaphragm setting.

    摘要翻译: 本发明涉及一种用于旋转扇形快门的非延迟快门释放的方法,特别是用于摄影测量航空摄像机中的方法,其包括计算机装置,该计算机装置经由用于将快门的旋转扇区旋转的控制装置将后者转换成 以照片序列的时间为快门的两个可行打开时间之间的时间间隔的多个整数的方式进行旋转。 通过隔膜设置的变化消除了可能的不正确曝光。

    Spectrometer
    8.
    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

    IPC分类号: A61B3/14 A61B3/00

    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。