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公开(公告)号：US4711542A
公开(公告)日：1987-12-08
申请号：US866582
申请日：1986-05-22
CPC分类号： A61B3/1176 , A61B3/10
摘要： An apparatus for detecting ophthalmic diseases such as a cataract in the lens of a patient's eye which includes means for focussing a laser beam at a selected spot in the lens of an eye, and according to which the light back-scattered from the eye are photoelectrically detected and converted into an electrical signal which is subsequently used to determine an autocorrelation function relating to the fluctuation of intensity of the back-scattered light over time, and to derive therefrom a protein particle distribution essential to ophthalmic disease detection.
摘要翻译： 一种用于检测眼睛疾病的装置，例如患者眼睛的透镜中的白内障，其包括用于将激光束聚焦在眼睛的晶状体中的选定点处的装置，并且根据该装置从眼睛反向散射的光是光电 检测并转换成电信号，其随后用于确定与随时间推移的背散射光的强度的波动相关的自相关函数，并由此导出眼科疾病检测所必需的蛋白质颗粒分布。
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公开(公告)号：US4854693A
公开(公告)日：1989-08-08
申请号：US253346
申请日：1988-09-29
摘要： An apparatus operates in an observation mode for determining a specific spot within the eye of a patient and operates in a measurement mode for measuring protein particles contained within the specific spot. The eye is illuminated with a slit light to determine a specific spot. A laser light is irradiated onto the determined specific spot. A scattered light scattered by protein particles is detected by a detector to measure the protein particles. Shutter members are actuated in the observation mode to unblock the slit light to thereby effect the determination of the specific spot, to block the laser light to thereby protect the eye, and to block the scattered light to thereby protect the detector, and actuated in the measurement mode to block the slit light to thereby prevent the slit light from being scattered by the protein particles, to unblock the laser light to thereby allow the laser light to be scattered by the protein particles and to unblock the thus scattered light to thereby effect the measurement of the protein particles.
摘要翻译： 一种装置在用于确定患者眼睛内的特定斑点的观察模式下操作，并且在用于测量包含在特定斑点内的蛋白质颗粒的测量模式中操作。 眼睛用狭缝光照亮以确定特定的斑点。 将激光照射到确定的特定光斑上。 通过检测器检测由蛋白质颗粒散射的散射光，以测量蛋白质颗粒。 在观察模式下致动遮光构件以解除狭缝光的阻挡，从而实现特定光点的确定，阻挡激光，从而保护眼睛，并阻挡散射光，从而保护检测器，并在 测量模式以阻挡狭缝光，从而防止狭缝光被蛋白质颗粒散射，以解除激光的光束，从而允许激光被蛋白质颗粒散射并且解除阻挡因此散射的光，从而实现 测定蛋白质颗粒。
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公开(公告)号：US4744649A
公开(公告)日：1988-05-17
申请号：US863046
申请日：1986-05-14
摘要： An ophthalmological measuring apparatus having a laser-slit projector unit for projecting a laser beam on a portion in a human eyeball, a microscope unit adapted for receiving and observing the light reflected from the portion in the eyeball and a detector unit adapted for displaying the observing point in the eyeball projected by the laser beam. The microscope unit includes an objective optical system, an imaging optical system, a scattered light pickup prism disposed between the objective optical system and the imaging optical system and having a reflecting surface for diverging and directing a part of the reflected light, a beam splitter for superposing another optical axis parallel to the optical axis diverged by the prism on the optical axis of the imaging optical system, a converging optical system for receiving the diverged optical axis and the other optical axis parallel thereto, and an optical fiber having one end disposed adjacent to the focal plane of the converging optical system and movable up and down and right and left. The detector unit includes a photoelectric device directed to the other end of the optical fiber, a wavelength separating mirror disposed between the other end of the optical fiber and the photoelectric device, a light emitting diode disposed on the reflecting side of the mirror and adapted for emitting light having a wavelength different from that of the laser beam, and a right-to-left inverting optical system disposed between the beam splitter and the converging optical system.
摘要翻译： 一种眼科测量装置，具有用于将激光束投射在人眼球部分上的激光狭缝投影仪单元，适于接收和观察从眼球部分反射的光的显微镜单元和适于显示观察的检测器单元 指向由激光束投影的眼球。 显微镜单元包括物镜光学系统，成像光学系统，设置在物镜光学系统和成像光学系统之间的散射光拾取棱镜，并具有用于发散和引导部分反射光的反射表面，用于 将与棱镜分离的光轴平行的另一个光轴叠加在成像光学系统的光轴上，会聚光学系统用于接收发散的光轴和与其平行的另一个光轴，以及光纤，其一端设置在相邻 到会聚光学系统的焦平面，上下左右移动。 检测器单元包括指向光纤另一端的光电装置，设置在光纤的另一端和光电装置之间的波长分离镜，设置在反射镜的反射面上的发光二极管， 发射具有与激光束不同的波长的光，以及设置在分束器和会聚光学系统之间的从右到左的反转光学系统。
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公开(公告)号：US4838683A
公开(公告)日：1989-06-13
申请号：US051666
申请日：1987-05-18
摘要： An ophthalmic measuring method and apparatus according to the present invention are provided for the purpose of measuring the state of microparticles in the aqueous chamber of an eye to be examined which is irradiated with a laser beam to detect the scattering characteristics in the aqueous chamber of the eye. A laser beam with a predetermined wavelength is projected into the aqueous chamber of the eye. Light scattered from the aqueous chamber is received with or without a linear polarizer and evaluated in terms of the changes between the scattering characteristics with or without the linear polarizer in order to measure the number or concentration of the microparticles present in the aqueous chamber for the purpose of detecting ophthalmic diseases.
摘要翻译： 提供了本发明的眼科测量方法和装置，用于测量被照射眼睛的水分室中的微粒的状态，该激光束照射激光束以检测其中的散射特性 眼。 具有预定波长的激光束投射到眼睛的水性室中。 从带有或不带有线偏振器的散射的光接收光，并根据具有或不具有线偏振器的散射特性之间的变化进行评估，以测量存在于水溶液室中的微粒的数量或浓度。 检测眼科疾病。
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公开(公告)号：US4877321A
公开(公告)日：1989-10-31
申请号：US311424
申请日：1989-02-14
CPC分类号： A61B3/135 , A61B3/1225
摘要： A slit lamp microscope for use in observing the cornea, crystalline lens and other tissues of an eye includes a scanning device for scanning the laser beam vertically and horizontally within a selected area of the eye to be examined to form thereon a slit image which illuminates the selected area. A regulating device is provided for regulating the intensity of the laser beam to a predetermined level depending upon the amount of light reflected from the eye. The scanning device is controlled to change its scanning area to make the selected area variable to thereby provide a slit image which is changeable in size.
摘要翻译： 用于观察角膜，晶状体和眼睛的其他组织的裂隙灯显微镜包括：扫描装置，用于在要检查的眼睛的选定区域内垂直和水平地扫描激光束，以在其上形成照亮所述眼睛的狭缝图像 选区。 提供调节装置，用于根据从眼睛反射的光量来将激光束的强度调节到预定水平。 控制扫描装置改变其扫描区域以使所选择的区域可变，从而提供尺寸可变的狭缝图像。
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公开(公告)号：US4957360A
公开(公告)日：1990-09-18
申请号：US338466
申请日：1989-04-14
CPC分类号： A61B3/1225 , A61B3/10 , A61B3/117
摘要： An apparatus for detecting ophthalmic diseases such as inflammation in the camera oculi of a patient's eye. A laser beam is focussed at a selected spot in the camera oculi of an eye, and the light scattered from the eye is photoelectrically detected and converted into an electrical signal which is subsequently used to determine the protein concentration essential to ophthalmic disease detection in the camera oculi of the patient's eye.
摘要翻译： 一种用于检测患者眼睛相机眼睛中的眼部疾病如眼睛炎症的装置。 激光束被聚焦在眼睛的相机眼睛中的选定的点上，并且从眼睛散射的光被光电检测并转换成电信号，随后用于确定相机中眼科疾病检测所必需的蛋白质浓度 患者眼睛的眼睛。
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公开(公告)号：US5184157A
公开(公告)日：1993-02-02
申请号：US530290
申请日：1990-05-30
申请人： Tadashi Ichihashi , Koichi Akiyama
发明人： Tadashi Ichihashi , Koichi Akiyama
CPC分类号： A61B3/1225
摘要： An ophthalmic measurement apparatus is provided in which a laser beam is converged at a selected point in a measurement zone within an eye and light scattered therefrom is photoelectrically detected via a measurement mask having an aperture of a prescribed size for ophthalmic measurement. During alignment the measurement zone is scanned at high speed by the laser beam with the same scanning width as the scanning width used during measurement. This makes it possible to observe any harmful light rays that will actually appear during measurement at those settings and to align the apparatus so that the harmful light rays do not come within the limiting aperture of the measurement mask, thereby enabling measurement to be conducted under optimum conditions.
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8.发明授权
公开(公告)号：US5141304A
公开(公告)日：1992-08-25
申请号：US731742
申请日：1991-07-16
申请人： Tadashi Ichihashi
发明人： Tadashi Ichihashi
CPC分类号： A61B3/1225
摘要： An ophthalmological measurement apparatus which projects a laser beam into a subject's eye and conducts a prescribed ophthalmological measurement based on the state of laser light scattering in the eye comprises a laser beam projection system for converging a laser beam from a laser source at a measurement point in the eye, a light receiving system for receiving scattered laser light from the interior of the eye by a photosensor means thereof and detecting the light scattering state inside the eye from the measured number of pulses output by the photosensor means. In this arrangement, the sensitivity of the photosensor means is measured, and the result of the light scattering state detection is automatically corrected according to the measured sensitivity of the photosensor means so that accurate ophthalmological measurement results can be obtained notwithstanding aging of the photosensor means or changes in its environmental conditions.
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公开(公告)号：US5000562A
公开(公告)日：1991-03-19
申请号：US210811
申请日：1988-06-24
申请人： Tadashi Ichihashi , Koichi Akiyama
发明人： Tadashi Ichihashi , Koichi Akiyama
摘要： An apparatus for detecting ophthalmic diseases such as an inflammation in a patient's eye which includes means for focusing a laser beam at a selected spot in the eye. The light scattered from the eye is photoelectrically detected and converted into an electrical signal which is subsequently used to determine the protein concentration essential to ophthalmic disease detection in the patient's eye. The laser beam is deflected vertically and horizontally. The electrical signal derived from the vertical scanning is compared with the other electrical signals from the horizontally shifted scanning of the laser beam to remove noises from the electrical signal.
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公开(公告)号：US06805443B2
公开(公告)日：2004-10-19
申请号：US10298710
申请日：2002-11-18
IPC分类号： A61B310
摘要： An ophthalmic apparatus has an illumination optical system for illuminating a preselected point of a patient's eye with slit-light. Objective lenses are each disposed in an observation optical path for forming an image of the preselected point of the patient's eye. Eyepiece systems are disposed in respective ones of the observation optical paths for observing the image of the preselected point of the patient's eye. An imaging device captures the image of the preselected point of the patient's eye. An optical element guides the image of the preselected point of the patient's eye to the imaging device. The optical element is disposed between the objective lenses at a position that does not lie in any of the observation optical paths.
摘要翻译： 一种眼科装置具有用狭缝光照射患者眼睛的预选点的照明光学系统。 物镜分别设置在用于形成患者眼睛的预选点的图像的观察光路中。 目镜系统设置在用于观察患者眼睛的预选点的图像的各个观察光路中。 成像装置捕获患者眼睛的预选点的图像。 光学元件将患者眼睛的预选点的图像引导到成像装置。 光学元件设置在不位于任何观察光路中的位置处的物镜之间。
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