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    Eye testing apparatus
    2.
    发明授权
    Eye testing apparatus 失效
    眼睛检测仪器

    公开(公告)号：US4859051A

    公开(公告)日：1989-08-22

    申请号：US137718

    申请日：1987-12-24

    申请人： Yasufumi Fukuma ,  Ikuo Kitao ,  Yasuo Kato

    发明人： Yasufumi Fukuma ,  Ikuo Kitao ,  Yasuo Kato

    IPC分类号： A61B3/12 ,  A61B3/10 ,  A61B3/103

    CPC分类号： A61B3/103

    摘要： An eye testing apparatus, in which a cornea reflecting image and a retina reflecting image formed by projecting each target mark image onto a cornea and a retina of an eye to be tested are projected to a slight receiving portion through a measuring optical system, and in which a corneal configuration and a refractive power of the eye to be tested are measured according to a signal detected by the light receiving portion, characterized in that the light receiving portion includes a two-dimensional light receiving element, the measuring optical system simultaneously projecting the cornea reflecting image and the retina reflecting image to different areas of the two-dimensional light receiving element.

    摘要翻译： 一种眼睛检查装置，其中将通过将每个目标标记图像投影到待测试的眼睛的角膜和视网膜上形成的角膜反射图像和视网膜反射图像通过测量光学系统投射到轻微的接收部分，并且 根据由受光部检测出的信号测量被测眼睛的角膜构造和屈光度，其特征在于，所述受光部包括二维光接收元件，所述测量光学系统同时投影 角膜反射图像和视网膜反射图像到二维光接收元件的不同区域。

    Optical image measurement device and optical image measurement method
    7.
    发明授权
    Optical image measurement device and optical image measurement method 有权
    光学图像测量装置和光学图像测量方法

    公开(公告)号：US07604351B2

    公开(公告)日：2009-10-20

    申请号：US12055954

    申请日：2008-03-26

    申请人： Yasufumi Fukuma ,  Hisashi Tsukada ,  Tsutomu Kikawa ,  Kazuhiko Yumikake

    发明人： Yasufumi Fukuma ,  Hisashi Tsukada ,  Tsutomu Kikawa ,  Kazuhiko Yumikake

    IPC分类号： A61B3/14

    CPC分类号： G01B9/0203 ,  A61B3/102 ,  G01B9/02044 ,  G01B9/02067 ,  G01B9/02091 ,  G01B2290/65 ,  G01N21/4795

    摘要： An optical image measurement device comprises: an interference-light generator configured to generate an interference light by splitting a low-coherence light into a signal light and a reference light and superimposing the signal light having passed through an eye and the reference light having passed through a reference object; a detector configured to detect the generated interference light; a calculator configured to obtain intensity distribution of the interference light in the eye, based on a result of the detection by the detector; a determining part configured to determine a projection position of the signal light to the eye, based on the obtained intensity distribution; and an image forming part configured to form an image of the eye, based on a result of detection of a new interference light based on a new signal light projected toward the determined projection position and a new reference light having passed through the reference object.

    摘要翻译： 光学图像测量装置包括：干涉光发生器，被配置为通过将低相干光分解成信号光和参考光来产生干涉光，并叠加已经通过眼睛的信号光和已经穿过的参考光 参考对象; 检测器，被配置为检测所产生的干涉光; 配置为基于检测器的检测结果获得眼睛中的干涉光的强度分布的计算器; 确定部件，被配置为基于获得的强度分布来确定信号光对眼睛的投影位置; 以及基于对所确定的投影位置投射的新的信号光的新的干涉光的检测结果和通过所述参照对象的新的基准光，构成为形成所述眼睛的图像的图像形成部。

    Fundus observation device
    8.
    发明授权
    Fundus observation device 有权
    眼底观察装置

    公开(公告)号：US07566132B2

    公开(公告)日：2009-07-28

    申请号：US11697030

    申请日：2007-04-05

    申请人： Yasufumi Fukuma ,  Hiroyuki Otsuka ,  Kazuhiko Yumikake ,  Hiroaki Okada ,  Yutaka Nishio

    发明人： Yasufumi Fukuma ,  Hiroyuki Otsuka ,  Kazuhiko Yumikake ,  Hiroaki Okada ,  Yutaka Nishio

    IPC分类号： A61B3/10

    CPC分类号： A61B3/102

    摘要： LCD 140 is provided for displaying an internal fixation target for fixating an eye E. Projection optical system (a part of an imaging optical system 120) is provided for projecting the displayed internal fixation target onto the a fundus oculi Ef. Image forming part 220 is provided for forming 2-dimensional images (images of fundus oculi) Ef of the surface of fundus oculi Ef. Display part 240A is provided for displaying images of fundus oculi Ef. Operation part 240B is provided for specifying the position of the displayed images of fundus oculi Ef. Main controller 211 is provided for changing the projection position of the internal fixation target on the fundus oculi by changing the display position of the fixation target by the LCD 140 based on the specified position. The image forming part 220 forms tomographic images of the fundus oculi Ef with the internal fixation target projected.

    摘要翻译： LCD 140用于显示用于固定眼睛E的内部固定目标。投影光学系统（成像光学系统120的一部分）用于将所显示的内部固定目标投影到眼底Ef上。 图像形成部220被设置用于形成眼底表面Ef的2维图像（眼底的图像）Ef。 显示部240A用于显示眼底Ef的图像。 操作部240B用于指定所显示的眼底图像的位置Ef。 主控制器211用于通过基于指定位置改变LCD 140的固定目标的显示位置来改变内眼固定目标在眼底上的投影位置。 图像形成部分220形成具有投影内固定目标的眼底Ef的断层图像。

    Optical Image Measuring Apparatus
    9.
    发明申请
    Optical Image Measuring Apparatus 有权
    光学图像测量仪器

    公开(公告)号：US20090153873A1

    公开(公告)日：2009-06-18

    申请号：US12086280

    申请日：2006-11-07

    申请人： Kinpui Chan ,  Masahiro Akiba ,  Yasufumi Fukuma ,  Hisashi Tsukada

    发明人： Kinpui Chan ,  Masahiro Akiba ,  Yasufumi Fukuma ,  Hisashi Tsukada

    IPC分类号： G01B9/023

    CPC分类号： G01B9/02067 ,  G01B9/02014 ,  G01B9/02069 ,  G01B9/02081 ,  G01B9/02083 ,  G01B9/0209 ,  G01B2290/45 ,  G01B2290/70 ,  G01N21/21 ,  G01N21/4795

    摘要： Provided is an optical image measuring apparatus capable of obtaining a high-accuracy image without being influenced by a movement of an object to be measured. Flash light is emitted from a xenon lamp (2) and converted into broad band light by an optical filter (2A). A polarization characteristic of the flash light is converted into linear polarization by a polarizing plate (3). Then, the flash light is divided into signal light (S) and reference light (R) by a half mirror (6). A polarization characteristic of the reference light (R) is converted into circular polarization by a wavelength plate (7). The signal light (S) and the reference light (R) are superimposed on each other by the half mirror (6) to produce interference light (L). A CCD (23) detects interference light having the same characteristic as that of the produced interference light (L). The produced interference light (L) is divided into an S-polarized light component (L1) and a P-polarized light component (L2) by a polarization beam splitter (11). The polarized light components are detected by CCDs (21 and 22). A signal processing section (20) of a computer (30) forms an image of the object to be measured (O) based on detection signals from the CCDs (21, 22, and 23).

    摘要翻译： 本发明提供能够得到高精度图像而不受被测定物的移动影响的光学图像测定装置。 闪光灯从氙灯（2）发射并通过滤光器（2A）转换成宽带光。 闪光的偏振特性由偏光板（3）转换成线偏振光。 然后，闪光被半反射镜（6）分为信号光（S）和参考光（R）。 参考光（R）的偏振特性由波片（7）转换成圆偏振。 信号光（S）和参考光（R）通过半反射镜（6）彼此重叠以产生干涉光（L）。 CCD（23）检测与产生的干涉光（L）的特性相同的干涉光。 所产生的干涉光（L）被偏振分束器（11）分为S偏振光分量（L1）和P偏振光分量（L2）。 偏振光分量由CCD（21和22）检测。 计算机（30）的信号处理部（20）基于来自CCD（21,22,23）的检测信号，形成被测量物体（O）的图像。

    Optical image measuring apparatus and optical image measuring method
    10.
    发明授权
    Optical image measuring apparatus and optical image measuring method 失效
    光学图像测量装置和光学图像测量方法

    公开(公告)号：US07492466B2

    公开(公告)日：2009-02-17

    申请号：US11246394

    申请日：2005-10-11

    申请人： Kinpui Chan ,  Masahiro Akiba ,  Yasufumi Fukuma ,  Hiroyuki Otsuka ,  Hisashi Tsukada ,  Kazuhiko Yumikake

    发明人： Kinpui Chan ,  Masahiro Akiba ,  Yasufumi Fukuma ,  Hiroyuki Otsuka ,  Hisashi Tsukada ,  Kazuhiko Yumikake

    IPC分类号： G01B11/02

    CPC分类号： G01B9/02007 ,  G01B9/02003 ,  G01B9/02014 ,  G01B9/02027 ,  G01B9/02044 ,  G01B9/02069 ,  G01B9/02091 ,  G01B11/2441 ,  G01B2290/45 ,  G01B2290/65 ,  G01B2290/70

    摘要： Provided is an optical image measuring apparatus forming a three-dimensional image based on tomographic images of an object, acquired at various depths even when the object moves during measurement. Including a half mirror (6) for dividing a light beam signal light (S) and reference light (R), a frequency shifter (8), a reference mirror (9) and a piezoelectric element (9A) used to change an optical path length of the reference light (R), CCDs (21, 22) for receiving interference light beams (L) resulting from interference light produced by superimposing the signal light (S) and the reference light (R) on each other by the half mirror (6) and outputting detection signals, an image forming portion for forming tomographic images based on the detection signals, a measurement depth calculating means (53), and an image processing portion (57). Forming a three-dimensional image or the like based on the arranged tomographic images.

    摘要翻译： 提供一种光学图像测量装置，其即使在测量期间物体移动时，也可以基于在各种深度获取的物体的断层图像形成三维图像。 包括用于分割光束信号光（S）和参考光（R）的半反射镜（6），用于改变光路的变频器（8），参考反射镜（9）和压电元件（9A） 参考光（R）的长度，用于接收由半反射镜将信号光（S）和参考光（R）彼此叠加而产生的干涉光所产生的干涉光束（L）的CCD（21,22） （6）并输出检测信号，基于检测信号形成断层图像的图像形成部分，测量深度计算装置（53）和图像处理部分（57）。 基于排列的断层图像形成三维图像等。