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    X RAY SOURCE GRATING STEPPING IMAGING SYSTEM AND IMAGE METHOD
    1.
    发明申请
    X RAY SOURCE GRATING STEPPING IMAGING SYSTEM AND IMAGE METHOD 有权
    X射线照相梯度成像系统和图像方法

    公开(公告)号：US20130094625A1

    公开(公告)日：2013-04-18

    申请号：US13641542

    申请日：2010-12-27

    申请人： Zhifeng Huang ,  Zhiqiang Chen ,  Li Zhang ,  Yuanjing Li ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Liang Li ,  Fei Ding

    发明人： Zhifeng Huang ,  Zhiqiang Chen ,  Li Zhang ,  Yuanjing Li ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Liang Li ,  Fei Ding

    IPC分类号： G01N23/04

    CPC分类号： G01N23/046 ,  A61B6/4291 ,  A61B6/484 ,  G01N2223/419

    摘要： An X-ray imaging system comprising: an X-ray source, a source grating, a fixed grating module and an X-ray detector, which are successively positioned in the propagation direction of X-ray; an object to be detected is positioned between the source grating and the fixed gating module; said source grating can perform stepping movement in a direction perpendicular to the optical path and grating stripes; wherein the system further comprises a computer workstation for controlling said X-ray source, source grating and X-ray detector so as to perform the following processes: the source grating performs stepping movement in at least one period thereof; at each stepping step, the X-ray source emits X-ray to the object to be detected, and the detector receives the X-ray at the same time; wherein after at least one period of stepping and data acquisition, the light intensity of X-ray at each pixel point on the detector is represented as a light intensity curve; the light intensity curve at each pixel point on the detector is compared with a light intensity curve in the absence of the object to be detected, a pixel value of each pixel point is calculated from change in said light intensity curve; an image of the detected object is reconstructed according to the calculated pixel value.

    摘要翻译： 一种X射线成像系统，包括：X射线源，源光栅，固定光栅模块和X射线检测器，其依次位于X射线的传播方向上; 要检测的物体位于源光栅和固定门控模块之间; 所述源光栅可以在垂直于光路和光栅条纹的方向上执行步进运动; 其中所述系统还包括用于控制所述X射线源，源光栅和X射线检测器的计算机工作站，以便执行以下处理：源光栅在其至少一个周期中执行步进运动; 在每个步进步骤中，X射线源向被检测物体发射X射线，并且检测器同时接收X射线; 其中在步进和数据采集的至少一个周期之后，将检测器上每个像素点处的X射线的光强度表示为光强度曲线; 将检测器上的每个像素点处的光强度曲线与不存在待检测对象的光强度曲线进行比较，根据所述光强度曲线的变化计算每个像素点的像素值; 根据计算出的像素值重建被检测物体的图像。

    X-ray source grating stepping imaging system and image method
    2.
    发明授权
    X-ray source grating stepping imaging system and image method 有权
    X射线源光栅步进成像系统和图像方法

    公开(公告)号：US09134259B2

    公开(公告)日：2015-09-15

    申请号：US13641542

    申请日：2010-12-27

    申请人： Zhifeng Huang ,  Zhiqiang Chen ,  Li Zhang ,  Yuanjing Li ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Liang Li ,  Fei Ding

    发明人： Zhifeng Huang ,  Zhiqiang Chen ,  Li Zhang ,  Yuanjing Li ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Liang Li ,  Fei Ding

    IPC分类号： G01N23/00 ,  G01N23/04 ,  A61B6/00

    CPC分类号： G01N23/046 ,  A61B6/4291 ,  A61B6/484 ,  G01N2223/419

    摘要： An X-ray imaging system comprising: an X-ray source, a source grating, a fixed grating module and an X-ray detector, which are successively positioned in the propagation direction of X-ray; an object to be detected is positioned between the source grating and the fixed gating module; said source grating can perform stepping movement in a direction perpendicular to the optical path and grating stripes; wherein the system further comprises a computer workstation for controlling said X-ray source, source grating and X-ray detector so as to perform the following processes: the source grating performs stepping movement in at least one period thereof; at each stepping step, the X-ray source emits X-ray to the object to be detected, and the detector receives the X-ray at the same time; wherein after at least one period of stepping and data acquisition, the light intensity of X-ray at each pixel point on the detector is represented as a light intensity curve; the light intensity curve at each pixel point on the detector is compared with a light intensity curve in the absence of the object to be detected, a pixel value of each pixel point is calculated from change in said light intensity curve; an image of the detected object is reconstructed according to the calculated pixel value.

    摘要翻译： 一种X射线成像系统，包括：X射线源，源光栅，固定光栅模块和X射线检测器，其依次位于X射线的传播方向上; 要检测的物体位于源光栅和固定门控模块之间; 所述源光栅可以在垂直于光路和光栅条纹的方向上执行步进运动; 其中所述系统还包括用于控制所述X射线源，源光栅和X射线检测器的计算机工作站，以便执行以下处理：源光栅在其至少一个周期中执行步进运动; 在每个步进步骤中，X射线源向被检测物体发射X射线，并且检测器同时接收X射线; 其中在步进和数据采集的至少一个周期之后，将检测器上每个像素点处的X射线的光强度表示为光强度曲线; 将检测器上的每个像素点处的光强度曲线与不存在待检测对象的光强度曲线进行比较，根据所述光强度曲线的变化计算每个像素点的像素值; 根据计算出的像素值重建被检测物体的图像。

    Fabricating parts from photopolymer resin
    3.
    发明授权
    Fabricating parts from photopolymer resin 有权
    从光聚合物树脂制造零件

    公开(公告)号：US09367049B2

    公开(公告)日：2016-06-14

    申请号：US13810494

    申请日：2011-07-15

    申请人： Amit S. Jariwala ,  David W. Rosen ,  Fei Ding

    发明人： Amit S. Jariwala ,  David W. Rosen ,  Fei Ding

    IPC分类号： G05B11/01 ,  B29C67/00

    CPC分类号： G05B11/01 ,  B29C64/135 ,  B29C64/386 ,  B33Y50/02

    摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for fabricating parts from photopolymer resin. In one aspect, a method includes iteratively determining a deviation measurement based on a simulated cured geometry and adjusted target geometry data until the deviation measurement is at or less than a threshold. The simulated cured geometry is determined, based in part, on an inhibition model.

    摘要翻译： 方法，系统和装置，包括在计算机存储介质上编码的计算机程序，用于从光聚合物树脂制造部件。 一方面，一种方法包括基于模拟的固化几何和调整的目标几何数据迭代地确定偏差测量，直到偏差测量值等于或小于阈值。 部分地基于抑制模型确定模拟的固化几何形状。

    NERVE GRAFT PREPARED BY ELECTROSTATIC SPINNING, THE PREPARING METHOD AND THE SPECIAL APPARATUS USED THEREFOR
    8.
    发明申请
    NERVE GRAFT PREPARED BY ELECTROSTATIC SPINNING, THE PREPARING METHOD AND THE SPECIAL APPARATUS USED THEREFOR 审中-公开
    静电纺丝制备的神经纤维，其制备方法及其使用的特殊装置

    公开(公告)号：US20110270411A1

    公开(公告)日：2011-11-03

    申请号：US12998651

    申请日：2010-03-31

    申请人： Yumin Yang ,  Xiaosong Gu ,  Fei Ding ,  Shanqing Xu ,  Xiaoli Yan

    发明人： Yumin Yang ,  Xiaosong Gu ,  Fei Ding ,  Shanqing Xu ,  Xiaoli Yan

    IPC分类号： A61F2/02 ,  B29C47/00 ,  D01F9/00

    CPC分类号： A61L27/56 ,  A61L27/18 ,  A61L27/227 ,  A61L27/24 ,  A61L27/28 ,  A61L27/58 ,  A61L2400/12 ,  A61L2430/32 ,  C08L5/08 ,  D01D5/0076 ,  D01F4/02 ,  D01F6/625 ,  D01F9/00 ,  C08L67/04

    摘要： The present invention discloses an artificial nerve graft prepared by electrostatic spinning, the preparing method and a special apparatus used therefor. Said artificial nerve graft is in the shape of a tube composed of nano-fiber that is prepared by electrostatic spinning of a polymer. The materials used in the present invention are bio-degradable materials and of desirable biocompatibility with human body. The product of the present invention is free of exogenous toxic substances or substances having side effects. Furthermore, the tube wall is of a 3-dimensional structure having micropores contained therein thereby providing a path for supplying nutritions required for the growth of nerve cells. Another advantage of the present invention is that necessary induction and space are provided for the growth of the nerve cells.

    摘要翻译： 本发明公开了通过静电纺丝制备的人造神经移植物，其制备方法和用于其的特殊装置。 所述人造神经移植物是通过聚合物的静电纺丝制备的由纳米纤维构成的管的形状。 本发明中使用的材料是生物可降解材料，并且与人体具有理想的生物相容性。 本发明的产品不含具有副作用的外源性有毒物质或物质。 此外，管壁具有其中包含微孔的3维结构，从而提供用于提供神经细胞生长所需的营养的路径。 本发明的另一个优点是为神经细胞的生长提供了必要的诱导和空间。

    Subwavelength structured lens having moire pattern, use and methods of making the same
    9.
    发明授权
    Subwavelength structured lens having moire pattern, use and methods of making the same 有权

    公开(公告)号：US11029529B2

    公开(公告)日：2021-06-08

    申请号：US15579166

    申请日：2016-06-06

    申请人： Stephen Y. Chou ,  Fei Ding ,  Wei Ding

    发明人： Stephen Y. Chou ,  Fei Ding ,  Wei Ding

    IPC分类号： G02B3/00 ,  G02B5/18 ,  G02B19/00 ,  G02B27/60 ,  G02B27/42

    摘要： The present inventions is related to the optical lenses that use subwavelength structures to perform an optical function, the applications of such lenses, and the methods of making the same. Particularly, the present invention provide an optical lens(es), termed “subwavelength Moiré index lens” or “SMIL” for manipulating light. The SMIL comprises a thin material layer having an effective optical index that has a Moiré pattern of two or more periodic structures. The SMIL allows a lens to be ultrathin, flat, numerical aperture nearly one, scalable to large area, and manufacturable at low cost. The present invention also provides the systems based on SMIL, such lens systems, LEDs and photodetectors, and the fabrication methods of the SMIL.