-
公开(公告)号：US5101826A
公开(公告)日：1992-04-07
申请号：US758204
申请日：1991-09-12
申请人： Kenjiro Katsuragi
发明人： Kenjiro Katsuragi
摘要： A noncontact type tonometer has a nozzle for discharging fluid toward an eye to be tested, an alignment target projecting optical system for projecting an alignment target light used for aligning the eye and an apparatus body toward the center of curvature of the cornea of the eye from the axial direction of said nozzle while converging the same thereto by an objective lens and forming a virtual image at the center of curvature of the cornea, and an alignment light receiving optical system for reimaging the virtual image on a light receiving portion as a target image. The improvement is characterized in that the alignment light receiving optical system is provided with a light splitter adapted to split an alignment target light for forming the virtual image based on specular reflection of the cornea and guiding the same to the light receiving portion in order to verify the alignment with reference to coincidence or noncoincidence of the alignment target image.
摘要翻译： 非接触型眼压计具有用于将流体朝向待测眼睛排出的喷嘴，对准目标投影光学系统，用于将用于将眼睛和装置主体对准的取向对象光朝向眼睛的角膜的中心弯曲 所述喷嘴的轴向方向同时通过物镜会聚在其上并在角膜的曲率中心形成虚像;以及对准光接收光学系统，用于对作为目标图像的光接收部分上的虚像进行再成像 。 该改进的特征在于，对准光接收光学系统设置有分光器，其适于基于角膜的镜面反射而分裂对准目标光以形成虚像，并将其引导到光接收部分以验证 参考对准目标图像的一致或不一致的对准。
-
公开(公告)号：US4995393A
公开(公告)日：1991-02-26
申请号：US333949
申请日：1989-04-06
申请人： Kenjiro Katsuragi , Kouji Nishio
发明人： Kenjiro Katsuragi , Kouji Nishio
摘要： An alignment apparatus of a noncontact type tonometer has a target projecting system for projecting light emitted from a light emitting source to an eye to be tested along the axial line of a fluid discharging nozzle for discharging fluid and forming a target image on the eye, and an alignment light receiving optical system for receiving the target image along the axial line of the nozzle and forming an image of the target image on a light receiving sensor. The alignment apparatus of a noncontact type tonometer is characterized in that the light emitting source comprises a first and a second light emitting sources, the light receiving sensor comprises an area sensor, and the apparatus further has a control unit adapted to detect the positions of the target images of the first and second light emitting sources formed on the area sensor and to output an alignment completion signal when such detected positions are within a preset range on the area sensor.
摘要翻译： 非接触式眼压计的对准装置具有目标投影系统，用于将从发光源发射的光沿着用于排出流体的流体排出喷嘴的轴线和眼睛上形成目标图像投射到被测眼睛;以及 对准光接收光学系统，用于沿着喷嘴的轴线接收目标图像，并在光接收传感器上形成目标图像的图像。 非接触式眼压计的对准装置的特征在于，发光源包括第一和第二发光源，光接收传感器包括区域传感器，并且该装置还具有控制单元，该控制单元适于检测 形成在区域传感器上的第一和第二发光源的目标图像，并且当检测到的位置在区域传感器上的预设范围内时，输出对准完成信号。
-
公开(公告)号：US5469233A
公开(公告)日：1995-11-21
申请号：US266530
申请日：1994-06-28
申请人： Kenjiro Katsuragi
发明人： Kenjiro Katsuragi
摘要： A sensor 17 detects a quantity of light emitted by an alignment light source 21 and reflected by an eye. A comparison circuit 53 compares a quantity of the reflected alignment light with a predetermined quantity of reference light. If the reflected alignment light is less in quantity than the reference light, the comparison circuit 53 judges that there exist stains which exert a bad influence on the reflected alignment light. An operator obtains the judgment through a monitor 52 by which cautions are offered, so that the operator can operate an instrument in the best condition.
摘要翻译： 传感器17检测由对准光源21发射并被眼睛反射的光量。 比较电路53将反射对准光的量与预定量的参考光进行比较。 如果反射对准光的量比参考光少，则比较电路53判断存在对反射的对准光产生不良影响的污渍。 操作员通过监视器52获得判断，通过该监视器提供警告，使得操作者可以以最佳状态操作仪器。
-
公开(公告)号：US5337095A
公开(公告)日：1994-08-09
申请号：US963048
申请日：1992-10-19
申请人： Kenjiro Katsuragi , Akira Tanabe
发明人： Kenjiro Katsuragi , Akira Tanabe
CPC分类号： A61B3/0075 , A61B3/14
摘要： An ophthalmological instrument has an anterior portion observation system for observing the anterior portion of an eye to be tested. The anterior portion observation system includes focus position shifting means capable of properly focusing in at least two different portions of the eye.
摘要翻译： 眼科仪器具有用于观察待测眼睛前部的前部观察系统。 前部观察系统包括能够适当地聚焦在眼睛的至少两个不同部分中的聚焦位置移动装置。
-
公开(公告)号：US5033841A
公开(公告)日：1991-07-23
申请号：US429290
申请日：1989-10-31
摘要： An ophthalmological instrument for the use of both corneal configuration and intraocular pressure measurement has alignment watching means for watching an alignment completion state upon receipt of an alignment completion signal which is output by alignment detecting means for detecting the alignment of an apparatus body with respect to an eye to be tested, corneal configuration measuring means for projecting a ring target mark onto the cornea of the eye and measuring a corneal configuration with reference to the ring target image, noncontact type intraocular pressure measuring means for discharging fluid toward the cornea in order to transfigure the cornea and measuring the intraocular pressure with reference to the amount of such transfiguration, and automatic executing means for executing the corneal configuration and intraocular pressure measurements in such a manner as that data of the ring target image is intaken in accordance with output of the alignment watching means in order to obtain data regarding the corneal configuration and thereafter checking whether the alignment completion state is maintained and if affirmative, automatically starting a fluid discharge onto the cornea.
摘要翻译： 用于角膜构造和眼内压测量的眼科仪器具有对准观察装置，用于在接收到对准完成信号时观察对准完成状态，该对准完成信号由对准检测装置输出，用于检测装置主体相对于 要测试的眼睛，角膜构造测量装置，用于将环目标标记投射到眼睛的角膜上并参照环形目标图像测量角膜构型，非接触型眼内压测量装置，用于向角膜排出流体，以便变形 角膜并参照这样的变形量测量眼内压，以及自动执行装置，用于执行角膜构型和眼内压测量，使得根据对准的输出来接收环形目标图像的数据 观看手段顺序 获得关于角膜构造的数据，然后检查对准完成状态是否保持，并且如果是肯定的，则自动开始流体排放到角膜上。
-
公开(公告)号：US5000181A
公开(公告)日：1991-03-19
申请号：US335660
申请日：1989-04-11
申请人： Kenjiro Katsuragi
发明人： Kenjiro Katsuragi
摘要： A noncontact type tonometer has a nozzle for discharging a fluid toward an eye to be tested; an alignment target projecting optical system for projecting an alignment target ray of light in form of parallel pencil of rays toward the eye from the axial direction of the nozzle in order to verify the alignment between the eye and an apparatus body; an illuminating light source for emitting an illuminating light for illuminating the anterior portion of the eye; and an anterior portion observing optical system for observing the anterior portion through an objective lens. The anterior portion observing optical system is commonly used as an alignment target light receiving optical system.
摘要翻译： 非接触型眼压计具有用于将流体朝向待测眼睛排出的喷嘴; 对准目标投影光学系统，用于从喷嘴的轴向向眼睛投射平行的光线对准目标光线，以验证眼睛与装置主体之间的对准; 照明光源，用于发射用于照射眼睛的前部的照明光; 以及前部观察光学系统，用于通过物镜观察前部。 前部观察光学系统通常用作对准目标光接收光学系统。
-
公开(公告)号：US4944303A
公开(公告)日：1990-07-31
申请号：US137611
申请日：1987-12-24
申请人： Kenjiro Katsuragi
发明人： Kenjiro Katsuragi
IPC分类号： A61B3/16
CPC分类号： A61B3/165
摘要： A noncontact type tonometer, in which an axial line extending in the direction of air pulse projected by an air pulse projecting nozzle towards a cornea of an eye to be tested is coaxial with an optical axis of an alignment optical system for verifying an alignment with respect to a vertex of the cornea, includes an anterior portion observing system capable of optically observing an anterior portion of the eye and having an optical axis coaxial at least with a part of the optical axis of the alignment optical system.
摘要翻译： 一种非接触型眼压计，其中沿着空气脉冲喷射喷嘴朝向待测眼睛的角膜的空气脉冲方向延伸的轴线与对准光学系统的光轴同轴，用于验证相对于 涉及角膜的顶点，包括前部观察系统，其能够光学地观察眼睛的前部，并具有至少与对准光学系统的光轴的一部分同轴的光轴。
-
公开(公告)号：US4817620A
公开(公告)日：1989-04-04
申请号：US92536
申请日：1987-09-03
摘要： A non-contact type tonometer is disclosed. It includes a fluid discharging device for discharging a fluid from a nozzle towards an eye to be tested and transfiguring the eye, an eye pressure measuring device for measuring the eye pressure of the eye based on the pressure of the fluid, and an alignment detecting device for detecting the aligning state of the nozzle of the fluid discharging device. It further includes an eye pressure value correcting device for correcting an actually measured eye pressure value obtained by the eye pressure measuring device based on an alignment error information of the nozzle with respect to the eye using the alignment detecting device.
摘要翻译： 公开了非接触型眼压计。 它包括一个流体排放装置，用于将流体从喷嘴流向待测眼睛并进行眼睛变形;眼压测量装置，用于基于流体的压力测量眼睛的眼压;以及对准检测装置 用于检测流体排出装置的喷嘴的对准状态。 其还包括眼压值校正装置，用于使用对准检测装置，基于针对眼睛的对准误差信息，校正由眼压测量装置获得的实际测量的眼压值。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.013 秒)
