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20 条记录 (耗时 0.015 秒)

    Contrast enhancement of electrographic imaging
    1.
    发明授权
    Contrast enhancement of electrographic imaging 失效
    电子成像对比增强

    公开(公告)号：US5163075A

    公开(公告)日：1992-11-10

    申请号：US742123

    申请日：1991-08-08

    申请人： Anthony R. Lubinsky ,  John W. May

    发明人： Anthony R. Lubinsky ,  John W. May

    IPC分类号： A61B6/00 ,  G03B42/02 ,  G03G15/00 ,  G03G15/04 ,  G03G15/06 ,  G03G15/22

    CPC分类号： G03G15/065 ,  G03G15/222

    摘要： The contrast of an electrographic image or a region of interest of an electrographic image having low contrast is enhanced by developing the electrographic image with toner using a development electrode which is biased to a potential which has a value near the average potential of the image but outside of the range of values of potential corresponding to image features selected for enhancement. The voltage potential of the electrographic image is measured to determine the average potential in the region of interest. The development electrode bias is set at a potential near the average potential but outside of the range of potentials corresponding to the image features selected for enhancement in the region of interest of the image. When developed with toner, the toner image has enhanced contrast. If the image is a xeroradiographic image, diagnostic capability of low contrast regions can be enhanced.

    Signal amplification by illumination of a partially developed latent electrostatic image
    2.
    发明授权
    Signal amplification by illumination of a partially developed latent electrostatic image 失效
    通过照射部分显影的静电潜像的信号放大

    公开(公告)号：US3914609A

    公开(公告)日：1975-10-21

    申请号：US44812874

    申请日：1974-03-04

    申请人： XEROX CORP

    发明人： JEROMIN LOTHAR S

    IPC分类号： A61B6/00 ,  G03G13/26 ,  G03G15/00 ,  G03G15/04 ,  G03G15/08 ,  G03G15/22 ,  G03G21/00 ,  G03G13/00

    CPC分类号： G03G15/222 ,  G03G15/08

    摘要： Method and apparatus for reducing X-ray dosage required for xeroradiographic examinations without reducing the relative information capacity of the images produced during the examination. In particular, a charged xerographic plate is positioned adjacent the object to be examined and penetrating Xray radiation is projected through the object onto the plate surface, forming a latent electrostatic image on the surface of the plate. The penetrating radiation utilized is of a substantially lower dosage than normally utilized. The image is then partially developed with developing powder and the partially developed image is then exposed to substantially uniform radiation. The exposed image is finally developed by applying additional developing powder thereto resulting in an enhanced image or signal.

    摘要翻译： 降低Xeroriography检查所需X射线剂量的方法和装置，而不会降低检查期间产生的图像的相对信息容量。 特别地，带电的静电复印板被定位成与被检查物体相邻，并且穿透X射线辐射通过物体投射到板表面上，在该板的表面上形成静电潜像。 所使用的穿透辐射具有比正常使用的显着更低的剂量。 然后将图像用显影粉末部分显影，然后将部分显影的图像暴露于基本均匀的辐射。 曝光的图像最终通过在其上施加额外的显影粉末而形成，从而产生增强的图像或信号。

    Precharging of the X-ray photoreceptor to eliminate the fatigue artifact
    3.
    发明授权
    Precharging of the X-ray photoreceptor to eliminate the fatigue artifact 失效
    X射线感光体的预充电以消除疲劳伪影

    公开(公告)号：US5023661A

    公开(公告)日：1991-06-11

    申请号：US335305

    申请日：1989-04-10

    申请人： William D. Fender ,  Lothar S. Jeromin

    发明人： William D. Fender ,  Lothar S. Jeromin

    IPC分类号： G03G15/22 ,  G03G21/00

    CPC分类号： G03G15/222 ,  G03G21/0094

    摘要： A process modification for the development of x-ray electrophotographic images with selenium photoreceptors wherein the occurrence of a catastrophic spot producing artifact called fatigue is eliminated. The process change consists of the addition of a photoreceptor pre-charging step immediately after thermal relaxation and before insertion of the photoreceptor in the elevator where it may be subsequently discharged by a suitable light source within thirty seconds of the pre-charging step. The effectiveness of the pre-charging step is achieved through field assisted detrapping of interference defect site injected holes which would otherwise detrap in the image charging step, thereby producing the fatigue artifact.

    摘要翻译： 利用硒光感受器开发X射线电子照相图像的方法修改，其中消除了称为疲劳的灾难性斑点产生伪影的发生。 过程变化包括在热松弛之后立即加入光感受器预充电步骤，并且在将感光体插入升降机之前，其可以随后在预充电步骤的三十秒内由合适的光源放电。 预充电步骤的有效性通过现场辅助去除干涉缺陷部位注入的空穴来实现，否则将在图像充电步骤中去除，从而产生疲劳伪影。

    Photon detector
    4.
    发明授权
    Photon detector 失效
    光子探测器

    公开(公告)号：US4763002A

    公开(公告)日：1988-08-09

    申请号：US38465

    申请日：1979-05-14

    申请人： Alfonso Zermeno ,  Lee M. Marsh, Jr.

    发明人： Alfonso Zermeno ,  Lee M. Marsh, Jr.

    IPC分类号： G01N23/04 ,  A61B6/00 ,  G01T1/24 ,  G01T1/26 ,  G03C5/16 ,  G03G13/00 ,  G03G13/02 ,  G03G15/054 ,  G03G15/22 ,  G21K4/00 ,  H01L27/14 ,  H01L31/115 ,  H04N5/32 ,  H05G1/42 ,  G01T1/22

    CPC分类号： G03G15/222 ,  G01T1/246 ,  G01T1/26 ,  G03C5/16 ,  G03G13/00 ,  G03G15/054 ,  G21K4/00 ,  H01L27/14 ,  H01L31/115 ,  H05G1/42

    摘要： A multilayered detector apparatus comprising:a first conductive layer:a photoconductive layer having two sides thick enough to obtain a desired level of sensitivity and resolution of the detector apparatus when the detector apparatus is exposed to radiation of known energy, one side of said photoconductive layer being integrally affixed to and in electrical contact with one side of said first conductive layer;a insulating layer having two sides that is a phosphor that will emit light when irradiated by X-rays, one side of said insulating layer being affixed to the other side of said photoconductive layer; andtransparent conductive layer having two sides, one side of said transparent conductive layer being affixed to the other side of said insulating layer.

    摘要翻译： 一种多层检测器装置，包括：第一导电层：光电导层，其具有足够厚的两侧，以便当检测器设备暴露于已知能量的辐射时获得所需检测器装置的灵敏度和分辨率，所述光电导层的一侧 与所述第一导电层的一侧整体固定并与之电接触; 绝缘层，其具有作为在被X射线照射时发光的荧光体的两侧，所述绝缘层的一侧固定在所述光电导层的另一侧; 和具有两侧的透明导电层，所述透明导电层的一侧固定在所述绝缘层的另一侧。

    Enhancement of images in electron radiography
    5.
    发明授权
    Enhancement of images in electron radiography 失效
    电子放射学中图像的增强

    公开(公告)号：US3792265A

    公开(公告)日：1974-02-12

    申请号：US29937872

    申请日：1972-10-20

    申请人： XONICS INC

    发明人： MUNTZ E ,  WELKOWSKY M

    IPC分类号： G03G15/054 ,  G03G15/22 ,  G03G13/22

    CPC分类号： G03G15/222 ,  G03G15/0545

    摘要： An X-ray system for producing visual images on a dielectric sheet by producing an electrostatic charge image on the sheet and then delivering oppositely charged particles to the charged sheet. Apparatus and process for increasing the electrostatic charge voltage between exposure and development, by producing the electrostatic charges in a high capacitance, low voltage configuration with the electrode and sheet in contact, and then converting to a low capacitance, high voltage configuration with the electrode and sheet spaced from each other prior to developing the visual image.

    摘要翻译： 一种X射线系统，用于通过在片材上产生静电荷图像，然后将相对带电的粒子输送到带电片材上，在电介质片材上产生视觉图像。 用于增加曝光和显影之间的静电荷电压的装置和方法，通过在电极和薄片接触的情况下通过产生具有高电容，低电压配置的静电电荷，然后转换成具有电极的低电容，高电压配置，以及 在显影视觉图像之前彼此间隔开。

    METHOD FOR REMOVING OF RESIDUAL CHARGE, X-RAY IMAGING METHOD AND APPARATUS USING THE METHOD
    6.
    发明申请
    METHOD FOR REMOVING OF RESIDUAL CHARGE, X-RAY IMAGING METHOD AND APPARATUS USING THE METHOD 有权
    使用该方法去除残留电荷，X射线成像方法和装置的方法

    公开(公告)号：US20150063544A1

    公开(公告)日：2015-03-05

    申请号：US14476069

    申请日：2014-09-03

    申请人： Samsung Electronics Co. Ltd.

    发明人： Young KIM ,  Sunil KIM ,  Jaechul PARK ,  Kangho LEE

    IPC分类号： H05G1/30 ,  G01N23/04

    CPC分类号： H05G1/30 ,  G01N23/04 ,  G01T1/24 ,  G03G15/222 ,  H01L27/14676

    摘要： A method of removing residual charge from a photoconductive material includes applying a first voltage to the photoconductive material to form an electrostatic field during a collection operation in which x-rays are irradiated onto the photoconductive material; and applying a second voltage to the photoconductor to reduce an amount of residual charge therein during a removal operation, the second voltage being different from the first voltage. In one or more example embodiments, the photoconductive material may include Mercury Iodine (Hgl2).

    摘要翻译： 从光导材料去除残留电荷的方法包括在收集操作期间将光电导材料施加第一电压以形成静电场，其中x射线照射到光电导材料上; 以及在去除操作期间将第二电压施加到所述光电导体以减少其中的剩余电荷量，所述第二电压不同于所述第一电压。 在一个或多个示例性实施例中，光导材料可以包括碘汞（Hgl2）。