公开(公告)号：US20060077395A1

公开(公告)日：2006-04-13

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），用于改变光学器件的变频器（8），参考反射镜（9）和压电元件（9A） 参考光（R）的路径长度，用于接收由将信号光（S）和参考光（R）叠加在一起而产生的干涉光所产生的干涉光（L）的CCD（21,22） 反射镜（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。

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。

公开(公告)号：US07372578B2

公开(公告)日：2008-05-13

申请号：US11223928

申请日：2005-09-13

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

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

IPC分类号： G02B9/02

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

摘要： Provided is an optical image measuring apparatus capable of effectively receiving interference light, particularly an alternating current component thereof using a smaller number of photo sensors. The optical image measuring apparatus includes a polarizing plate for converting a light beam from a broad-band light source to linearly polarized light, a half mirror for dividing the light beam into signal light and reference light, a piezoelectric element for vibrating a reference mirror, a wavelength plate for converting the reference light to circularly polarized light, a polarization beam splitter for extracting two different polarized light components from interference light produced from the signal light and the reference light which are superimposed on each other by the half mirror, CCDs for detecting the two different polarized light components, and a signal processing portion for producing an image of an object to be measured based on the detected polarized light components. A frequency for intensity modulation of the light beam is synchronized with a beat frequency of the interference light. A frequency of vibration of the reference mirror is synchronized with the beat frequency of the interference light and an amplitude of vibration thereof is set to be equal to or smaller than a wavelength of the interference light.

摘要翻译： 提供一种光学图像测量装置，其能够使用较少数量的光传感器有效地接收干涉光，特别是其交流分量。 该光学图像测量装置包括用于将来自宽带光源的光束转换为线偏振光的偏振片，用于将光束分成信号光的半反射镜和参考光，用于振动参考反射镜的压电元件， 用于将参考光转换成圆偏振光的波长板，用于从由半反射镜彼此叠加的信号光和参考光产生的干涉光中提取两种不同的偏振光分量的偏振分束器，用于检测的CCD 两个不同的偏振光分量，以及用于基于检测到的偏振光分量产生待测物体的图像的信号处理部分。 光束的强度调制频率与干涉光的拍频同步。 参考反射镜的振动频率与干涉光的拍频同步，其振动振幅被设定为等于或小于干涉光的波长。

公开(公告)号：US20060055939A1

公开(公告)日：2006-03-16

申请号：US11223928

申请日：2005-09-13

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

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

IPC分类号： G01B11/02

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

摘要： Provided is an optical image measuring apparatus capable of effectively receiving interference light, particularly an alternating current component thereof using a smaller number of photo sensors. The optical image measuring apparatus includes a polarizing plate for converting a light beam from a broad-band light source to linearly polarized light, a half mirror for dividing the light beam into signal light and reference light, a piezoelectric element for vibrating a reference mirror, a wavelength plate for converting the reference light to circularly polarized light, a polarization beam splitter for extracting two different polarized light components from interference light produced from the signal light and the reference light which are superimposed on each other by the half mirror, CCDs for detecting the two different polarized light components, and a signal processing portion for producing an image of an object to be measured based on the detected polarized light components. A frequency for intensity modulation of the light beam is synchronized with a beat frequency of the interference light. A frequency of vibration of the reference mirror is synchronized with the beat frequency of the interference light and an amplitude of vibration thereof is set to be equal to or smaller than a wavelength of the interference light.

摘要翻译： 提供一种光学图像测量装置，其能够使用较少数量的光传感器有效地接收干涉光，特别是其交流分量。 该光学图像测量装置包括用于将来自宽带光源的光束转换为线偏振光的偏振片，用于将光束分成信号光的半反射镜和参考光，用于振动参考反射镜的压电元件， 用于将参考光转换成圆偏振光的波长板，用于从由半反射镜彼此叠加的信号光和参考光产生的干涉光中提取两种不同的偏振光分量的偏振分束器，用于检测的CCD 两个不同的偏振光分量，以及用于基于检测到的偏振光分量产生待测物体的图像的信号处理部分。 光束的强度调制频率与干涉光的拍频同步。 参考反射镜的振动频率与干涉光的拍频同步，其振动振幅被设定为等于或小于干涉光的波长。

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。

公开(公告)号：US07370966B2

公开(公告)日：2008-05-13

申请号：US11697042

申请日：2007-04-05

申请人： Yasufumi Fukuma ,  Hiroyuki Otsuka ,  Kazuhiko Yumikake

发明人： Yasufumi Fukuma ,  Hiroyuki Otsuka ,  Kazuhiko Yumikake

IPC分类号： A61B3/10 ,  A61B3/14

CPC分类号： A61B3/102 ,  G01B9/0203 ,  G01B9/02068 ,  G01B9/02091 ,  G01B11/14

摘要： The ophthalmologic apparatus 1 splits low coherence light LO into a signal light LS and a reference light LR, the interference light LC being generated by having the signal light LS overlap with the reference light LR, and detects this interference light LC. In addition, the apparatus comprises an optical alignment system 190A for performing the alignment of an optical system forming the signal light path to the eye E. An intraocular distance calculator 214 determines the distance between the position where the signal light LS has been introduced onto the eye E and the position where the signal light LS has been reflected by the fundus oculi E based on length of the optical path of the signal light, the length of the optical path of the reference signal light, the working distance after alignment, and the detection signal output by the CCD 184 (or signal intensity data).

摘要翻译： 眼科装置1将低相干光LO分解为信号光LS和参考光LR，通过使信号光LS与参考光LR重叠而产生的干涉光LC，并检测该干涉光LC。 此外，该装置包括用于执行形成到眼睛E的信号光路的光学系统的对准的光学对准系统190A。眼内距离计算器214确定已经将信号光LS被引入的位置之间的距离 基于信号光的光路的长度，参考信号光的光路长度，对准后的工作距离，以及眼睛E和信号光LS已被眼底E反射的位置，以及 由CCD184输出的检测信号（或信号强度数据）。

公开(公告)号：US07784941B2

公开(公告)日：2010-08-31

申请号：US11621676

申请日：2007-01-10

申请人： Yasufumi Fukuma ,  Hiroyuki Otsuka ,  Kazuhiko Yumikake

发明人： Yasufumi Fukuma ,  Hiroyuki Otsuka ,  Kazuhiko Yumikake

IPC分类号： A61B3/10

CPC分类号： A61B3/102

摘要： A fundus observation device which can simultaneously capture both surface images and tomographic images of the fundus oculi is provided. The fundus observation device 1 has a fundus camera unit 1A, an OCT unit 150, and an arithmetic and control unit 200. The fundus camera unit 1A has an illuminating optical system 100 and an imaging optical system 120. The arithmetic and control unit 200 forms the surface image of fundus oculi Ef based on signals from fundus camera unit 1A. The OCT unit 150 divides low coherence light LO into the signal light LS and the reference light LR, and detects the interference light LC that can be obtained from the signal light LS passing through fundus oculi Ef and the reference light LR passing through reference mirror 174. The arithmetic and control unit 200 forms tomographic images of fundus oculi Ef based on these detecting results. A Dichroic mirror 134 combines the optical path of the signal light LS toward fundus oculi Ef into the optical path for imaging of the imaging optical system 120, and separates the optical path of the signal light LS towards fundus oculi Ef from the optical path for imaging.

摘要翻译： 提供了一种能够同时捕捉眼底的表面图像和断层图像的眼底观察装置。 眼底观察装置1具有眼底相机单元1A，OCT单元150和运算单元200.眼底相机单元1A具有照明光学系统100和成像光学系统120.算术和控制单元200形成 基于眼底相机单元1A的信号的眼底Ef的表面图像。 OCT单元150将低相干光LO分割为信号光LS和参考光LR，并且检测可以从通过眼底Ef的信号光LS和通过参考镜174的参考光LR获得的干涉光LC 算术和控制单元200基于这些检测结果形成眼底Ef的断层图像。 分色镜134将信号光LS的光路朝向眼底Ef组合到用于成像光学系统120的成像的光路中，并且将信号光LS的光路从眼图用光学路径分离成眼底Ef 。

公开(公告)号：US20070236660A1

公开(公告)日：2007-10-11

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： The ophthalmologic apparatus 1 splits low coherence light LO into a signal light LS and a reference light LR, the interference light LC being generated by having the signal light LS overlap with the reference light LR, and detects this interference light LC. In addition, the apparatus comprises an optical alignment system 190A for performing the alignment of an optical system forming the signal light path to the eye E. An intraocular distance calculator 214 determines the distance between the position where the signal light LS has been introduced onto the eye E and the position where the signal light LS has been reflected by the fundus oculi E based on length of the optical path of the signal light, the length of the optical path of the reference signal light, the working distance after alignment, and the detection signal output by the CCD 184 (or signal intensity data).

摘要翻译： 眼科装置1将低相干光LO分解为信号光LS和参考光LR，通过使信号光LS与参考光LR重叠而产生的干涉光LC，并检测该干涉光LC。 此外，该装置包括用于执行形成到眼睛E的信号光路的光学系统的对准的光学对准系统190A。眼内距离计算器214确定已经将信号光LS被引入的位置之间的距离 基于信号光的光路的长度，参考信号光的光路长度，对准后的工作距离，以及眼睛E和信号光LS已被眼底E反射的位置，以及 由CCD184输出的检测信号（或信号强度数据）。

公开(公告)号：US20070159595A1

公开(公告)日：2007-07-12

申请号：US11621676

申请日：2007-01-10

申请人： Yasufumi Fukuma ,  Hiroyuki Otsuka ,  Kazuhiko Yumikake

发明人： Yasufumi Fukuma ,  Hiroyuki Otsuka ,  Kazuhiko Yumikake

IPC分类号： A61B3/14

CPC分类号： A61B3/102

摘要： A fundus observation device which can simultaneously capture both surface images and tomographic images of the fundus oculi is provided. The fundus observation device 1 has a fundus camera unit 1A, an OCT unit 150, and an arithmetic and control unit 200. The fundus camera unit 1A has an illuminating optical system 100 and an imaging optical system 120. The arithmetic and control unit 200 forms the surface image of fundus oculi Ef based on signals from fundus camera unit 1A. The OCT unit 150 divides low coherence light LO into the signal light LS and the reference light LR, and detects the interference light LC that can be obtained from the signal light LS passing through fundus oculi Ef and the reference light LR passing through reference mirror 174. The arithmetic and control unit 200 forms tomographic images of fundus oculi Ef based on these detecting results. A Dichroic mirror 134 combines the optical path of the signal light LS toward fundus oculi Ef into the optical path for imaging of the imaging optical system 120, and separates the optical path of the signal light LS towards fundus oculi Ef from the optical path for imaging.

摘要翻译： 提供了一种能够同时捕捉眼底的表面图像和断层图像的眼底观察装置。 眼底观察装置1具有眼底照相机单元1A，OCT单元150以及运算单元200。 眼底照相机单元1A具有照明光学系统100和成像光学系统120。 算术和控制单元200基于来自眼底照相机单元1A的信号形成眼底Ef的表面图像。OCT单元150将低相干光LO分成信号光LS和参考光LR，并检测干涉光LC 可以从通过眼底Ef的信号光LS和通过参考镜174的参考光LR获得。 算术和控制单元200基于这些检测结果形成眼底Ef的断层图像。 分色镜134将信号光LS的光路朝向眼底Ef组合到用于成像光学系统120的成像的光路中，并且将信号光LS的光路从眼图用光学路径分离成眼底Ef 。

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。