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    • 23. 发明授权
    • Disk centering device
    • 磁盘定心装置
    • US5761186A
    • 1998-06-02
    • US584613
    • 1996-01-11
    • Yoshihiro MushikaYoshikazu GotoYoshiteru NamotoHitoshi Fujii
    • Yoshihiro MushikaYoshikazu GotoYoshiteru NamotoHitoshi Fujii
    • G11B17/028
    • G11B17/0282G11B17/0284
    • The disk centering device of the invention includes: a turntable for retaining an information recording disk which has a center hole and is placed on a placing surface so that the disk can rotate around a rotation axis thereof; and a centering unit including a plurality of centering portions coming into contact with a periphery of the center hole and a plurality of resilient portions, each of which is connected with a corresponding one of the plurality of centering portions for supporting the centering portion so that the centering portion can be resiliently displaced in a radial direction of the information recording disk. In the disk centering device, the turntable includes regulating faces for regulating positions of the centering portions in a state where the centering portions are resiliently displaced in the radial direction as a result of a contact between the centering portions and the regulating faces, and each of the centering portions is in contact with the periphery of the center hole at a disk contact part which is located at a position more distant from the resilient portion than the regulating face.
    • 本发明的盘对中装置包括:转盘,用于保持具有中心孔并放置在放置表面上的信息记录盘,使得盘可绕其旋转轴线旋转; 以及定心单元,其包括与中心孔的周边接触的多个定中心部分和多个弹性部分,每个弹性部分与多个对中部分中的相应一个相对应,用于支撑定心部分,使得 定心部分可以在信息记录盘的径向方向上弹性移位。 在盘定心装置中,转盘包括调节面,用于在定心部分由于定中心部分和调节面之间的接触而在径向上弹性位移的状态下调节定心部分的位置,并且每个 定心部分在位于比调节面更远离弹性部分的位置处的盘接触部分处与中心孔的周边接触。
    • 24. 发明授权
    • Ophthalmic measuring device
    • 眼睛测量装置
    • US5163437A
    • 1992-11-17
    • US689881
    • 1991-05-21
    • Hitoshi FujiiTakashi Yokokura
    • Hitoshi FujiiTakashi Yokokura
    • A61B3/10A61B3/12A61B3/14A61B5/026
    • A61B3/14A61B3/1233
    • An ophthalmic measuring device is used for measuring blood flow at a fundus to be subjected to ophthalmic examination. The device includes and illumination system for illuminating the fundus to be examined, a projection system for irradiating a predetermined area of the fundus with a measuring laser beam, a detection device for detecting a reflected measuring laser beam reflected from the irradiated area, a storage device for storing signals obtained by the detection device, and an arithmetic processing section for arithmetically processing blood flow in a blood vessel of the fundus based on the stored signals. The device has the capability of indicating an area to be detected on the fundus. The device allows a photograph of the fundus to be taken, superimposed on an image of the indicated area, substantially simultaneously with the storage of the signals in the storage device.
    • PCT No.PCT / JP90 / 01237第 371日期1991年5月21日 102(e)日期1991年5月21日PCT提交1990年9月26日PCT公布。 出版物WO91 / 04705 日期:1991年04月18日。眼科测量装置用于测量眼底血流以进行眼科检查。 该装置包括用于照射待检查的眼底的照明系统,用测量激光束照射眼底的预定区域的投影系统,用于检测从照射区域反射的反射的测量激光束的检测装置,存储装置 用于存储由所述检测装置获得的信号;以及运算处理部,其基于所存储的信号对所述眼底的血管中的血流进行算术处理。 该装置具有在眼底上指示要检测的区域的能力。 该装置允许将基底的照片叠加在指示区域的图像上,与存储装置中的信号的存储基本上同时进行。
    • 26. 发明申请
    • BLOOD FLOW IMAGE DIAGNOSING DEVICE
    • 血流图像诊断装置
    • US20110319775A1
    • 2011-12-29
    • US13254754
    • 2010-04-20
    • Hitoshi FujiiKenji OkamotoNoriyoshi TakahashiHiroyuki Ishihara
    • Hitoshi FujiiKenji OkamotoNoriyoshi TakahashiHiroyuki Ishihara
    • A61B5/02
    • A61B5/0261A61B3/1233A61B5/02007A61B5/489G06F19/00
    • The present invention provides a blood flow image diagnosis device comprising: a laser beam irradiation system that irradiates an observation region of a body tissue with a laser beam; a light receiving system having a light receiver including a large number of pixels that detects reflected light from the observation region of the body tissue; an image capture section that continuously captures a plurality of images for a specified time that is one or more cardiac beats on the basis of a signal from the light receiver; an image storage section that stores the plurality of images; an arithmetic section that calculates a blood flow rate in the body tissue from the time variation of the output signal of each pixel corresponding to the plurality of the stored images; and a display section that displays the two-dimensional distribution of the calculation result as a blood flow map; wherein the blood flow image diagnosis device has a function for analyzing the blood flow map, the arithmetic section has a function that separates a blood flow of a blood vessel observed in a surface layer in the observation region of the body tissue from a peripheral background blood flow on the basis of a plurality of blood flow map data for a time that is one or more cardiac beats, and the display section has a function that distinguishably displays each blood flow on a blood flow map. The blood flow image diagnosis device has an additional function for diagnosing blood flow images as compared to a conventional device.
    • 本发明提供一种血流图像诊断装置,包括:激光束照射系统,其用激光束照射身体组织的观察区域; 光接收系统,其具有包含大量像素的光接收器,所述多个像素检测来自所述身体组织的观察区域的反射光; 图像捕获部,其基于来自所述光接收器的信号连续捕获指定时间内的多个图像,所述指定时间是一个或多个心跳; 存储多个图像的图像存储部; 运算部,其根据与所述多个所存储的图像对应的各像素的输出信号的时间变化来计算所述人体组织中的血流量; 以及显示部,其将计算结果的二维分布显示为血流图; 其特征在于,所述血流图像诊断装置具有分析血流图的功能,所述运算部具有将身体组织的观察区域中的表层中观察到的血管的血流与周边背景血液分离的功能 基于多个血流图数据流动一次或多次心跳,并且显示部具有可区分地显示血流图上的每个血流的功能。 与常规装置相比,血流图像诊断装置具有用于诊断血流图像的附加功能。
    • 29. 发明申请
    • PERSONAL AUTHENTICATION METHOD AND PERSONAL AUTHENTICATION DEVICE UTILIZING FINGER-TIP BLOOD FLOW MEASUREMENT BY LASER LIGHT
    • 个人认证方法和使用激光照射手指血液流量测量的个人认证装置
    • US20100168585A1
    • 2010-07-01
    • US12280035
    • 2007-01-09
    • Hitoshi FujiiNaoki Konishi
    • Hitoshi FujiiNaoki Konishi
    • A61B5/117
    • A61B5/1172A61B5/0261G06K9/00033G06K9/00899
    • A personal authentication method is provided that includes imaging, on an image sensor as a laser speckle using an optical system, light reflected from a blood vessel layer in subcutaneous and internal tissues when a laser beam is expanded and made to irradiate a finger pad, calculating a quantity that represents the rate of change with respect to time of the amount of light received for each pixel of the laser speckle, obtaining a finger pad blood flow map as a two-dimensional map of the numerical values, and comparison-checking the blood flow map against pre-registered data of individuals, wherein using a near-infrared laser beam or using this in combination with a visible laser beam, comparison-checking against pre-registered data of individuals is carried out using a pattern reflecting a fingerprint occurring within the finger pad blood flow map obtained from reflected light and, observed superimposed thereon, an internal tissue blood flow distribution pattern, and there is also provided a device used for the method.
    • 提供一种个人认证方法,其包括在激光束被扩张并使其照射指垫时,使用光学系统在作为激光散斑的图像传感器上成像从皮肤组织和内部组织中的血管层反射的光,计算 表示对于激光散斑的每个像素接收的光量相对于时间的变化率的量,获得作为数值的二维图的手指垫血流图,并且对血液进行比较检查 流程图与个人的预先注册的数据相对应,其中使用近红外激光束或将其与可见激光束组合使用,使用反映在内部发生的指​​纹的图案进行与个人的预先登记数据的比较检查 从反射光获得的指垫血流图,并且在其上重叠观察内部组织血流分布模式,并且还存在pr 淘汰了一种用于该方法的装置。