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    • 45. 发明申请
    • LIGHTING APPARATUS
    • 照明设备
    • US20120134146A1
    • 2012-05-31
    • US13376638
    • 2010-06-10
    • Andrew Smith
    • Andrew Smith
    • F21S4/00F21V15/015F21V7/04
    • F21V7/005F21V14/02F21V15/015F21V19/02F21Y2103/00
    • A lighting apparatus (1) with a housing (2), two parallel elongate lighting cells (5a, 5b) and a concave reflector (6) configured to focus light emitted from the two lighting cells (5a, 5b). The lighting cells (5a, 5b) are movable with respect to one another and with respect to the reflector (3), thereby to alter the spread and/or direction of the emitted light. The housing includes removable end caps (3) each with a receptacle (33) that receive the end portion (22) of the housing (2) and a clip (35) configured to connect the end cap (3) to the housing (2). The reflector (6) includes spaced brackets (60) and a resilient reflective sheet (61) received and retained by the brackets (60).
    • 一种具有壳体(2)的照明设备(1),两个平行的细长照明单元(5a,5b)和凹面反射器(6),其被配置为聚焦从两个照明单元(5a,5b)发射的光。 照明单元(5a,5b)可相对于彼此和相对于反射器(3)移动,从而改变发射光的扩展和/或方向。 壳体包括可移除的端盖(3),每个端盖具有容纳壳体(2)的端部(22)的容器(33)和构造成将端盖(3)连接到壳体(2)的夹子 )。 反射器(6)包括间隔开的支架(60)和由支架(60)容纳和保持的弹性反射片(61)。
    • 50. 发明申请
    • Method and System for Controlling X-Ray Focal Spot Characteristics for Tomoysythesis and Mammography Imaging
    • 控制X光焦点特征的方法和系统,用于诊断和乳房造影成像
    • US20100303202A1
    • 2010-12-02
    • US12623472
    • 2009-11-23
    • Baorui RenJay SteinZhenxue JingAndrew Smith
    • Baorui RenJay SteinZhenxue JingAndrew Smith
    • G01N23/04H05G1/52
    • A61B6/4021A61B6/025A61B6/032A61B6/502H01J35/14H05G1/52
    • An x-ray tube is described that includes components for increasing x-ray image clarity in the presence of a moving x-ray source by modifying focal spot characteristics, including focal spot size and focal spot position. In a first arrangement a static focal spot is moved in a direction contrary to the movement of the x-ray source so that an effective focal spot position is essentially fixed in space relative to one of the imaged object and/or detector during a tomosynthesis exposure. In a second arrangement, the size of the static focal spot is increased, and the resulting increase in tube current reduces the exposure time and concomitant blur effect. The methods may be used alone or in combination; for example an x-ray tube with a larger, moveable static focal spot will result in a system that fully utilizes the x-ray tube generator, provides a high quality image with reduced blur and, due to the decrease in exposure time, may scan the patient more quickly.
    • 描述了一种X射线管,其包括用于通过改变焦点特性(包括焦点尺寸和焦斑位置)来增加在存在移动的X射线源的情况下增加x射线图像清晰度的部件。 在第一布置中,静止焦斑在与x射线源的运动相反的方向上移动,使得在断层合成曝光期间,有效焦点位置相对于成像对象和/或检测器之一基本上固定在空间中 。 在第二种布置中,静态焦点的尺寸增加,并且由此导致的管电流的增加降低了曝光时间并伴随着模糊效果。 这些方法可以单独使用或组合使用; 例如具有较大可移动静电焦点的X射线管将导致完全利用x射线管发生器的系统,提供具有减少的模糊的高质量图像,并且由于曝光时间的减少可能扫描 病人更快