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    • 4. 发明授权
    • Examination apparatus for examining an object having a spheroidal
reflective surface
    • 用于检查具有球形反射表面的物体的检查装置
    • US5463430A
    • 1995-10-31
    • US98786
    • 1993-07-29
    • Naoki IsogaiYoshiaki MimuraMasanao Fujieda
    • Naoki IsogaiYoshiaki MimuraMasanao Fujieda
    • A61B3/107G01B11/255A61B3/10G01B11/24
    • G01B11/255A61B3/107
    • An examination apparatus for examining an object having a spheroidal reflecting surface provides a first index projecting optical system for projecting a first measuring index onto the object to be examined at a designated angle, a second index projecting optical system for projecting a second measuring index having a different optical distance from the first index onto the object at the designated angle, so that each reflected images of the first and second measuring index have a designated image height relationship therebetween when the object is placed at a designated working distance, and respective image height of reflected images of the first and second measuring index are detected by a detecting optical system with a photoelectric conversion apparatus, whereby whether the working distance between the object and the apparatus is right or not is judged by processing a signal detected by the photoelectric conversion apparatus.
    • 一种用于检查具有球形反射面​​的物体的检查装置,提供了用于将第一测量指标以指定角度投影到待检查对象上的第一折射率投影光学系统,用于投影第二测量指标的第二折射率投影光学系统, 以指定角度从第一索引到物体的不同光学距离,使得当物体被放置在指定的工作距离时,第一和第二测量索引的每个反射图像具有指定的图像高度关系,并且各个图像高度 通过具有光电转换装置的检测光学系统来检测第一和第二测量索引的反射图像,由此通过处理由光电转换装置检测到的信号来判断物体和装置之间的工作距离是否正确。
    • 5. 发明授权
    • Ophthalmic apparatus
    • 眼科仪器
    • US5764341A
    • 1998-06-09
    • US754933
    • 1996-11-25
    • Masanao FujiedaNaoki Isogai
    • Masanao FujiedaNaoki Isogai
    • A61B3/00A61B3/028A61B3/10A61B3/11A61B3/14A61B3/15
    • A61B3/15A61B3/111
    • An ophthalmic apparatus in which a measuring part for inspecting-or-measuring an eye to be examined is disposed so as to move relatively against a fixation stand, the ophthalmic apparatus comprises light source for use in detecting a relative movement, which is disposed in the one between the fixation stand side and the measuring part side, photo detecting elements for detecting a light bundle emitted from the light source for use in detecting a relative movement, which is disposed in the other between the fixation stand side and the measuring part side, target forming device for forming at least two target-images, that are transmitted from the light source for use in detecting a relative movement onto the photo detecting elements plane, upon before and after the movement according to the relative movement by the measuring device against the fixation stand, and calculating device for calculating a relative position of the measuring part against the fixation stand based on a detecting information of the target images detected by the photo detecting elements.
    • 一种眼科装置,其中用于检查或测量被检眼的测量部件设置成相对于定影台移动,该眼科装置包括用于检测相对运动的光源,该光源设置在 一个在固定支架侧和测量部分侧之间,用于检测从用于检测相对运动的光源发射的光束的光检测元件,该光束检测元件设置在固定支架侧和测量部分侧之间, 目标形成装置,用于形成至少两个目标图像,所述至少两个目标图像是根据所述测量装置相对于所述光学元件的相对运动而在所述运动之前和之后从所述光源传输用于检测到所述光检测元件平面上的相对运动 固定支架和计算装置,用于基于检测i计算测量部件相对于固定支架的相对位置 由光检测元件检测到的目标图像的形状。
    • 7. 发明授权
    • Ophthalmic apparatus
    • 眼科仪器
    • US06547392B2
    • 2003-04-15
    • US09819641
    • 2001-03-29
    • Masanao Fujieda
    • Masanao Fujieda
    • A61B310
    • A61B3/0058A61B3/103
    • An ophthalmic apparatus comprising an input unit with which data on eye refractive power distribution of an eye to be examined at far vision, which is an unaccommodated state of the eye, and data on eye refractive power distribution of the eye at near vision, which is an accommodated state of the eye are inputted, a display, and a calculation and control unit which obtains data on distribution of difference between both the inputted data on distribution, so as to display at least one of the following data on the display: the data on the eye refractive power distribution at far vision; the data on the eye refractive power distribution at near vision; and the obtained data on the distribution of difference.
    • 一种眼科装置,包括:输入单元,利用该输入单元,在远视力下进行检视的眼睛的眼睛屈光力分布数据,其是眼睛的不适应状态,以及眼睛在近视力下的眼睛屈光力分布的数据, 输入眼睛的容纳状态,显示和计算和控制单元,其获得关于分配的两个输入数据之间的差分布的数据,以便在显示器上显示以下数据中的至少一个:数据 对远视力的眼屈光力分布; 视力近视眼屈光力分布数据; 并获得有关分布差异的数据。
    • 8. 发明授权
    • Ophthalmic measurement apparatus having plural pairs of photoreceiving
elements
    • 具有多对光接收元件的眼科测量装置
    • US5907388A
    • 1999-05-25
    • US942633
    • 1997-10-02
    • Masanao Fujieda
    • Masanao Fujieda
    • A61B3/103A61B3/107A61B3/10
    • A61B3/107A61B3/103
    • An ophthalmic measurement apparatus for measuring a refractive power of an eye to be examined, the apparatus comprises slit projecting optical system for scanning a fundus of the eye by a slit light bundle, detecting optical system for detecting the slit light bundle reflected by the fundus of the eye which is scanned by the slit projecting optical system, the detecting optical system includes plural pairs of photo-receiving elements which are disposed along the meridian direction corresponding to the slit scanning direction of the slit light bundle, and respective pairs of photo-receiving elements are disposed so as to be symmetric with putting an optical axis therebetween at approximately conjugate position relative to a cornea of the eye, and refractive power calculating device for calculating the refractive power of the eye which is varied at the meridian direction, based on respective phase difference signals outputted by respective photo-receiving elements of the detecting optical system.
    • 一种用于测量被检眼的屈光度的眼科测量装置,该装置包括用于通过狭缝光束扫描眼底的狭缝投影光学系统,用于检测由眼底反射的狭缝光束的检测光学系统 由狭缝投射光学系统扫描的眼睛,检测光学系统包括沿着与狭缝光束的狭缝扫描方向对应的子午线方向配置的多对光接收元件,以及各对光接收元件 元件被布置为对称,其中相对于眼睛的角膜在其近似共轭位置处放置光轴;以及折射力计算装置,用于基于各自的子午线方向计算在子午线方向上变化的眼睛的屈光力量 由检测光学的各个光接收元件输出的相位差信号 l系统
    • 9. 发明授权
    • Visual acuity test mark displaying device
    • 视力检测标记显示装置
    • US5420652A
    • 1995-05-30
    • US903290
    • 1992-06-24
    • Masanao Fujieda
    • Masanao Fujieda
    • A61B3/02A61B3/032
    • A61B3/032
    • A visual acuity test mark displaying device comprises: a test mark selecting means provided with a plurality of test mark selecting keys which are operated for the sequential selection of visual acuity test marks; a display means for displaying visual acuity test marks selected by the test mark selecting means at a predetermined position; a specifying means for specifying optional key-mark combinations each of a test mark selecting key and a visual acuity test mark selected by operating the same test mark selecting key; an input means for entering data representing the arrangement of the visual acuity test marks specified by the specifying means; and a storage means for storing the optional key-mark combinations specified by the specifying means. The visual acuity test mark displaying device can be set for visual acuity test mark sets desired by the user and enables the change of the visual acuity test mark sets for which the same is set beforehand.
    • 视敏度测试标记显示装置包括:测试标记选择装置,其具有多个测试标记选择键,用于顺序选择视力测试标记; 显示装置,用于将检测标记选择装置选择的视敏度检验标记显示在预定位置; 指定装置,用于指定通过操作相同的测试标记选择键而选择的测试标记选择键和视敏度测试标记中的每一个的可选键组合; 用于输入表示由指定装置指定的视敏度测试标记的布置的数据的输入装置; 以及存储装置,用于存储由指定装置指定的可选按键组合。 视敏度检验标记显示装置可以设定为用户所期望的视敏度检验标记集,并且能够预先设定与其相同的视敏度检验标记集的改变。
    • 10. 发明授权
    • Corneal topography analysis system
    • 角膜地形分析系统
    • US07370969B2
    • 2008-05-13
    • US10813620
    • 2004-03-31
    • Stephen D. KlyceMichael K. SmolekMasanao Fujieda
    • Stephen D. KlyceMichael K. SmolekMasanao Fujieda
    • A61B3/10A61B5/103
    • A61B3/107
    • A corneal topography analysis system includes: an input unit for inputting corneal curvature data; and an analysis unit that determines plural indexes characterizing topography of the cornea based on the input corneal curvature data, the analysis unit further judges corneal topography from features inherent in predetermined classifications of corneal topography using the determined indexes and a neural network so as to judge at least one of normal cornea, myopic refractive surgery, hyperopic refractive surgery, corneal astigmatism, penetrating keratoplasty, keratoconus, keratoconus suspect, pellucid marginal degeneration, or other classification of corneal topography.
    • 角膜地形分析系统包括:用于输入角膜曲率数据的输入单元; 以及分析单元,其基于输入的角膜曲率数据确定表征角膜的形貌的多个指标,所述分析单元使用所确定的指标进一步判断角膜地形的预定分类中固有的特征的角膜形貌和神经网络,以便在 正常角膜,近视屈光手术,远视屈光手术,角膜散光,穿透性角膜移植术,圆锥角膜,圆锥角膜疑似,透明边缘变性或其他角膜地形分类中的至少一种。