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1.发明授权Ophthalmometric apparatus for generating an image of a selection and a surface of an eyeground of a subject 失效用于产生选择的图像和被摄体的眼底的表面的眼用计量装置
公开(公告)号：US5633694A
公开(公告)日：1997-05-27
申请号：US509337
申请日：1995-07-31
CPC分类号： A61B3/145
摘要： The present invention relates to an ophthalmometric apparatus and is intended to provide an ophthalmometric apparatus that generates image signals representing a section of a measuring portion of a measuring eye. A first light source emits light rays having a comparatively short coherence length, a measuring optical system converges a light beam emitted by the first light source on a position substantially corresponding to the pupil of the measuring eye to illuminate a measuring portion, a beam splitter separates a reference optical path from the measuring optical path of the measuring optical system, a reference optical system including a reflecting mirror reflects a reference light beam, an interference optical system combines a reflected measuring light beam and a reflected reference light beam reflected by the reference optical system for interference, an image pickup device having a plurality of image sensing elements disposed in a substantially conjugate relation with the measuring portion receives an interference light beam provided by the interference optical system, an image signal generating unit generates image signals representing a section of the measuring eye from the output signals of the image pickup device when the reflecting mirror is shifted.
摘要翻译： 本发明涉及一种检眼仪，其目的是提供一种产生表示测量眼的测量部分的图像信号的检眼仪。 第一光源发射具有相对短的相干长度的光线，测量光学系统将由第一光源发射的光束会聚在基本对应于测量眼的光瞳的位置上，以照亮测量部分，分束器分离 来自测量光学系统的测量光路的参考光路，包括反射镜的参考光学系统反射参考光束，干涉光学系统将反射的测量光束和由参考光学反射的反射参考光束组合 具有与测量部分基本上共轭的多个图像感测元件的图像拾取装置接收由干涉光学系统提供的干涉光束，图像信号产生单元产生表示该干涉光学系统的一部分的图像信号 从输出信号测量眼睛 当反射镜被移动时，图像拾取装置的ls。
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2.发明授权Surface shape measurement apparatus, surface shape measurement method, surface state graphic apparatus 有权表面形状测量装置，表面形状测量方法，表面状态图形装置公开(公告)号：US07206080B2
公开(公告)日：2007-04-17
申请号：US10485276
申请日：2002-07-30
申请人： Nobuo Kochi , Hitoshi Otani , Satoru Niimura
发明人： Nobuo Kochi , Hitoshi Otani , Satoru Niimura
CPC分类号： G06T7/593 , G01B11/24 , G01C11/06 , G06T7/85 , G06T2207/10012 , H04N13/189 , H04N13/221 , H04N13/239 , H04N13/243 , H04N13/246 , H04N13/32 , H04N2013/0081
摘要： A surface shape measuring apparatus, comprising: a stereo-photographing part 3 for photographing an object 1 in stereo; a relative position changing part 4 for changing the positional relation between the stereo-photographing part 3 and the object 1; means 5 for storing stereo-photographing parameters in a plurality of directions from which the stereo-photographing part 3 photographs the object 1; a stereo-image generating means 6 for controlling the stereo-photographing part 3 to photograph the object 1 from the plurality of directions with the stored stereo-photographing parameters and generating stereo images of the object 1; and a surface shape processing means 7 for measuring the surface shape of the object 1 based on the stereo images of the object 1.
摘要翻译： 一种表面形状测量装置，包括：用于立体拍摄物体1的立体拍摄部分3; 用于改变立体拍摄部分3和对象1之间的位置关系的相对位置改变部分4; 用于在立体拍摄部分3从其拍摄对象1的多个方向上存储立体拍摄参数的装置5; 立体图像产生装置6，用于控制立体拍摄部分3利用所存储的立体拍摄参数从多个方向拍摄对象1并产生对象1的立体图像; 以及基于对象1的立体图像来测量对象1的表面形状的表面形状处理装置7。
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公开(公告)号：US4941744A
公开(公告)日：1990-07-17
申请号：US215684
申请日：1988-07-06
IPC分类号： G01B9/02
CPC分类号： G01B9/02051 , G01B9/02028
摘要： An integrated-photocircuit interferometer (20) comprises a substrate (21) in which coherent light for measurement emitted from a light source (23) is directed through an exit waveguide (22) toward a corner cube prism (34) which can be movable with an object to be measured. The light reflected back from the prism (34) can enter an inlet waveguide (33) having branch waveguides (35, 36) which split the incident measurement light. Part of the light transmitted through the exit waveguide (22) is transferred to reference waveguides (26, 27) which provide different optical path lengths for the light propagated therethrough. The "reference beams of light" which has been transmitted through the different lengths of optical paths provided by the reference waveguides (26, 27) are introduced into the branch waveguides (35, 36) where interference occurs between the reference beams and the split beams of incident light from the corner cube prism (34). The interference will cause changes in brightness detected by photodetectors (37, 38) as the prism (34) is shifted toward or away from the interferometer (20). Since there is an optical path length difference between the reference waveguides (26, 27), a great number of changes can be detected by the photodetectors for a shift of the prism. Thus, the amount of the shift can be determined to a high resolution. In addition, the relationship in phase between the detected brightnesses will change depending on the direction of movement of the corner cube prism (34). The direction of the prism's movement can thus be detected.
摘要翻译： 集成光电导干涉仪（20）包括基板（21），其中从光源（23）发射的用于测量的相干光被引导通过出口波导（22）朝向角立方棱镜（34），角隅棱镜可以与 要测量的对象。 从棱镜（34）反射的光可以进入具有分开入射测量光的分支波导（35,36）的入口波导（33）。 通过出射波导（22）透射的光的一部分被转移到对于通过其传播的光提供不同光程长度的参考波导（26,27）。 已经通过由参考波导（26,27）提供的不同长度的光路传输的“参考光束”被引入到分支波导（35,36）中，在参考光束和分束光束之间发生干涉 来自角立方棱镜（34）的入射光。 当棱镜（34）朝向或远离干涉仪（20）移动时，干涉将引起由光电检测器（37,38）检测到的亮度变化。 由于在参考波导（26,27）之间存在光路长度差，因此可以通过光电检测器检测棱镜的移动的大量变化。 因此，可以将偏移量确定为高分辨率。 此外，检测到的亮度之间的相位关系将根据角隅棱镜（34）的移动方向而变化。 因此可以检测棱镜运动的方向。
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4.发明授权Perimetric measurement apparatus for measuring characteristics of X ganglion cells 失效用于测量X神经节细胞特征的周边测量装置
公开(公告)号：US5717481A
公开(公告)日：1998-02-10
申请号：US546074
申请日：1995-10-20
申请人： Nobusuke Obata , Satoru Niimura
发明人： Nobusuke Obata , Satoru Niimura
CPC分类号： A61B3/024
摘要： An apparatus for measuring a visual field of a patient, especially characteristics of X ganglion cells, displays a series of targets to a patient. A ramp stimulus is used to measure characteristics of X ganglion cells. A target size setting device sets targets of various sizes. A stimulus intensity changing device changes the intensity of the stimulus in accordance with the size set by the target size setting device. A response device measures the response from the patient, that is, whether the patient senses the target. A memory stores the intensity of stimulus and target size corresponding to the patient's responses.
摘要翻译： 用于测量患者视野的装置，特别是X神经节细胞的特征，向患者显示一系列目标。 斜坡刺激用于测量X神经节细胞的特征。 目标尺寸设定装置设定各种尺寸的目标。 刺激强度变化装置根据目标尺寸设定装置设定的大小改变刺激强度。 响应装置测量患者的反应，即患者是否感测到目标。 存储器存储对应于患者反应的刺激强度和目标大小。
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公开(公告)号：US4909629A
公开(公告)日：1990-03-20
申请号：US215856
申请日：1988-07-06
IPC分类号： G01B9/02
CPC分类号： G01B9/02051 , G01B9/02084 , G01B2290/40 , G01B2290/70
摘要： A light interferometer has an interferometer portion for interfering a measuring light and a reference light, and a light signal processing portion for processing a signal according to an interference signal which changes according to the change of an optical path length of the measuring light. The interferometer portion has a first light source for generating a coherent light, a light interference portion for dividing the coherent light emitted by the first light source into a reference light and a measuring light in order to introduce the measuring light to an object, making the measuring light reflected by the object and the reference light interfered with each other and introducing thereof to a photo detector, and an optical path length periodically changing means for periodically changing the difference of an optical path length of the reference light with respect to the optical path length of the measuring light relatively at a constant amplitude. The light signal processing portion has a second light source for generating a coherent light, a collimate lens portion for collimating the coherent light emitted by the second light source, a space modulating portion for diffracting the coherent light outgoing from the collimate lens portion, a Fourier transforming portion for transforming the diffracted coherent light, and two photodetectors disposed on at a spot corresponding to a frequency composition equivalent to a frequency of the optical path length periodically changing means and the other at a spot corresponding to a frequency composition two times the first-mentioned frequency composition in order to extract these frequency compositions out of frequency compositions which have been decomposed in frequency spectral by the Fourier transforming portion.
摘要翻译： 光干涉仪具有用于干涉测量光和参考光的干涉仪部分，以及用于根据根据测量光的光程长度的变化而变化的干扰信号处理信号的光信号处理部分。 干涉仪部分具有用于产生相干光的第一光源，用于将由第一光源发射的相干光分成参考光的光干涉部分和测量光，以将测量光引入到对象，使得 测量由物体反射的光和参考光彼此干涉并将其引入光电检测器，以及光路长度周期性变化装置，用于周期性地改变参考光的光路长度相对于光路的差值 测量光的长度相对地处于恒定的幅度。 光信号处理部分具有用于产生相干光的第二光源，用于准直由第二光源发射的相干光的准直透镜部分，用于衍射从准直透镜部分射出的相干光的空间调制部分，傅立叶 变换部分，用于变换衍射相干光;以及两个光电检测器，其设置在对应于与光路长度周期性变化装置的频率相当的频率成分的点上，另一个在对应于频率合成的频率组成的两倍上， 提取频率组成，以便通过傅立叶变换部分在频谱中分解的频率合成中提取这些频率合成。
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公开(公告)号：US06217172B1
公开(公告)日：2001-04-17
申请号：US09516366
申请日：2000-03-01
申请人： Masahiro Shibutani , Satoru Niimura
发明人： Masahiro Shibutani , Satoru Niimura
IPC分类号： A61B310
摘要： An ophthalmologic measuring system, comprising a light source unit 4 for emitting an illuminating light beam for illuminating a fundus of each of both eyes of a person under measurement, a projection optical system 1 for projecting the illuminating light beam from said light source unit to the fundus of each of the eyes of the person under measurement, a photodetection optical system 2 including a light blocking member which blocking a part of a reflection light beam coming from the fundus of the eye of the person under measurement and is arranged in an optical path and at approximately conjugate position to a pupil of the eye under measurement so that change occurs in light amount distribution depending on ocular refractive power, a photodetection unit 9 arranged at approximately conjugate position to the pupil of the eye under measurement and receives photodetection light beam from said photodetection optical system, a storage unit for storing a photodetection signal of said photodetection unit, a control arithmetic unit 13 for obtaining at least one of interpupillary distances, ocular refractive powers and pupil diameters of the eye under measurement based on the photodetection signal of the photodetection unit, and a display unit 14 for displaying an anterior ocular segment image of the eye under measurement during measurement period and for displaying over time and at real time the data of interpupillary distance, ocular refractive power and pupil diameter of the eye under measurement, which are results of measurement during measurement period.
摘要翻译： 一种眼科测量系统，包括：光源单元4，用于发射用于照射被测者的双眼的眼底的照明光束;投影光学系统1，用于将来自所述光源单元的照明光束投射到 被检测者的眼睛的眼底，光检测光学系统2，其包括阻挡来自被测者的眼底的反射光的一部分的遮光部件，并配置在光路 并且在大约共轭位置处测量眼睛的瞳孔，使得根据眼屈光力的光量分布发生变化;光检测单元9，其布置在测量眼睛的瞳孔的大致共轭位置处，并且接收来自 所述光检测光学系统，用于存储所述光的光电检测信号的存储单元 控制运算单元13，用于基于光检测单元的光电检测信号获得测量眼睛的瞳孔间距离，眼屈光度和瞳孔直径中的至少一个以及用于显示前眼部图像的显示单元14 在测量期间测量眼睛，并随时间和实时显示测量期间测量眼睛的瞳孔间距离，眼屈光度和瞳孔直径的数据，这是测量期间的结果。
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公开(公告)号：US5106364A
公开(公告)日：1992-04-21
申请号：US545494
申请日：1990-06-29
CPC分类号： A61B17/32002 , A61F9/00763 , A61B2017/00544
摘要： A surgical cutting instrument having an outer tubular member with a closed distal end, and an aperture therein which is adjacent to the closed distal end and which is in communication with the hollow of the outer tubular member. The instrument also includes an inner tube slidably disposed in the outer tube such that it reciprocates between first and second positions. The instrument also has a suction device which draws a portion of an object inwardly through the aperture. The inner tubular member has first and second edges which cooperate with the aperture such that when the suction device draws a first portion of the object into the aperture, the first edge cuts this portion away as the inner tubular member moves from the first position to the second position. However, when the suction device draws a second portion of the object into the aperture, the second edge cuts this portion away as the inner tubular member moves from the first position to the second position.
摘要翻译： 一种外科切割器具，具有封闭的远端的外部管状构件，以及与封闭的远端相邻并且与外部管状构件的中空部连通的孔。 仪器还包括可滑动地设置在外管中的内管，使得其在第一和第二位置之间往复运动。 仪器还具有抽吸装置，其通过孔将内部物体向内拉。 内部管状构件具有与孔配合的第一和第二边缘，使得当抽吸装置将物体的第一部分拉入孔时，当内部管状构件从第一位置移动到第二位置时，第一边缘将该部分切除 第二名 然而，当抽吸装置将物体的第二部分拉入到孔中时，当内部管状构件从第一位置移动到第二位置时，第二边缘将该部分切除。
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公开(公告)号：US4986653A
公开(公告)日：1991-01-22
申请号：US228649
申请日：1988-08-05
CPC分类号： G01S17/36 , G01S7/4811
摘要： A light wave range finder has a range finding optical system in which the intensity of a coherent beam of light emitted from a coherent light source is modulated and delivered to an object and a reflecting beam of light reflected on the object is received by an light receiving element. A distance to the object is measured based on a phase detection of the reflecting beam of light. The range finding optical system has an optical substrate which is provided with, at least, a light intensity modulating portion for modulating the intensity of a coherent beam of light; an optical path changing portion for changing the coherent beam of light, which has been modulated the intensity by the light intensity modulating portion, between an external range finding optical path and a reference optical path; a first light amount regulating portion for regulating a light amount of the coherent beam of light guided to the external range finding optical path; a delivering system for delivering the coherent beam of light which has been regulated the light amount of the first light amount regulating portion toward an object; and a light receiving system for receiving a reflecting beam of light reflected by the object.
摘要翻译： 光波测距器具有测距光学系统，其中从相干光源发射的相干光束的强度被调制并传送到物体，并且在物体上反射的反射光束被光接收 元件。 基于反射光束的相位检测来测量与物体的距离。 测距光学系统具有至少设置有用于调制相干光束的强度的光强调制部分的光学基板; 光路改变部，用于在外部测距光路和基准光路之间改变由光强度调制部调制了强度的相干光束; 第一光量调节部分，用于调节被引导到外部测距光路的光的相干光束的光量; 用于将已经将第一光量调节部分的光量调节到对象的相干光束的传送系统; 以及用于接收由物体反射的反射光束的光接收系统。
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公开(公告)号：US4973153A
公开(公告)日：1990-11-27
申请号：US225118
申请日：1988-07-28
CPC分类号： G01B9/02004 , G01S17/32
摘要： A range finder for finding a distance to an object comprising an outgoing light guiding wave path, a reference light guiding wave path, and an incoming light guiding wave path. The finder further comprises wavelength changing means for changing the wavelength of the beam of light emitted from the light source, wavelength detecting means for detecting the wavelength of the beam of light emitted from the light source, and calculating means for detecting at least two peaks of the signal coming from the light receiving element when the wavelength of the light source is changed by the wavelength changing means, finding the wavelengths of the light source, respectively, from the wavelength detecting means at the time when the signal exhibits the two peaks, and calculating the distance to the object according to an operation expression memorized beforehand with reference to such obtained two wavelengths. A total reflection prism, a polarized beam splitter, a quarter-wave plate, and a mode converting device are also provided.
摘要翻译： 用于找到与包括出射光引导波道，参考光引导波道和入射光引导波路的物体的距离的测距仪。 取景器还包括波长改变装置，用于改变从光源发射的光束的波长;波长检测装置，用于检测从光源发射的光束的波长;以及计算装置，用于检测光源的至少两个峰值 当光源的波长被波长改变装置改变时来自光接收元件的信号，分别在信号表现出两个峰值时从波长检测装置发现光源的波长;以及 根据这样获得的两个波长预先记录的运算式计算与物体的距离。 还提供了全反射棱镜，偏振分束器，四分之一波片和模式转换装置。
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