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    • 7. 发明授权
    • Mobilometer
    • US5803730A
    • 1998-09-08
    • US616691
    • 1996-03-15
    • Behrooz KhademazadKamrooz KhademazadCourosh Mehanian
    • Behrooz KhademazadKamrooz KhademazadCourosh Mehanian
    • A61B5/11A61C19/04
    • A61B5/1111A61B9/00A61B2505/05A61B2562/043A61B5/682
    • Measuring apparatus and method for measuring the mobility of an object, such as a tooth, having a longitudinal axis, that is disposed in a securing medium. The apparatus includes an outer and an inner housing. The outer housing partially defines a cavity and has first and second cavity wall portions which face the cavity and position the outer housing with respect to the securing medium. The inner housing is disposed within the cavity and partially defines a chamber that receives the object. The inner housing is adapted for relative movement with respect to the outer housing. The inner housing has first and second chamber wall portions facing the chamber and first and second object contact members for engaging opposing surfaces of the object. First and second compression springs are positioned between and in contact with respective chamber wall portions and object contact members. When pressed a force transmitting member connected to the inner housing causes the inner housing to move radial to the longitudinal axis of the object. Optic fibers fixed to the outer housing and connected to a detector measure the mobility of the object with respect to the securing medium by receiving a beam of light emitted from a directional light source fixed to one of the object contact members.
    • 用于测量被布置在固定介质中的具有纵轴的诸如齿的物体的移动性的测量装置和方法。 该装置包括外壳体和内壳体。 外壳部分地限定空腔并且具有面向空腔的第一和第二空腔壁部分,并且相对于固定介质定位外壳体。 内壳体设置在空腔内并部分地限定容纳物体的腔室。 内壳适于相对于外壳的相对运动。 内壳体具有朝向腔室的第一和第二室壁部分,以及用于接合物体的相对表面的第一和第二物体接触构件。 第一和第二压缩弹簧定位在相应的室壁部分和对象接触构件之间并与之接触。 当按压连接到内壳体的力传递构件时,内壳体径向移动到物体的纵向轴线。 固定到外壳并连接到检测器的光纤通过接收从固定到一个对象接触构件的定向光源发射的光束来测量物体相对于固定介质的移动性。
    • 8. 发明申请
    • System and Method for Determining Image Focus by Sampling the Image at Multiple Focal Planes Simultaneously
    • 用于通过在多重焦点平面上采样图像来确定图像聚焦的系统和方法
    • US20110228070A1
    • 2011-09-22
    • US12941054
    • 2010-11-06
    • Courosh MehanianYuval Ben-DovAndrew V. Hill
    • Courosh MehanianYuval Ben-DovAndrew V. Hill
    • H04N7/18H04N5/232
    • H04N5/23248
    • A system and method for maintaining focus in an imaging device; the imaging device having an objective lens with an optical axis, a stage for supporting a specimen, and a controller for controlling the stage-to-objective distance; the system comprising: one or more image sensors placed at a plurality of substantially different axial focal positions, and at least one computing device executing computer-readable instructions stored in its memory and configured to acquire images from each of the image sensors; the method comprising: computing a quantitative image characteristic for each of the images acquired by the computing device, computing an axial stage-to-objective distance correction based on the computed quantitative image characteristics and the plurality of axial focal positions, and causing the controller to adjust the axial stage-to-objective distance according to the computed axial stage-to-objective distance correction.
    • 一种用于在成像装置中保持焦点的系统和方法; 所述成像装置具有带有光轴的物镜,用于支撑样本的台,以及用于控制所述阶段对目标距离的控制器; 所述系统包括:放置在多个基本上不同的轴向焦点位置的一个或多个图像传感器,以及执行存储在其存储器中并被配置为从每个图像传感器获取图像的计算机可读指令的至少一个计算设备; 所述方法包括:计算由所述计算设备获取的每个图像的定量图像特征,基于所计算的定量图像特征和所述多个轴向焦点位置计算轴向阶段到目标距离校正,并且使所述控制器 根据计算的轴向阶段到目标的距离校正来调整轴向阶段到目标的距离。