Fencing blade
    7.
    发明授权
    Fencing blade 失效
    击剑刀

    公开(公告)号:US5322277A

    公开(公告)日:1994-06-21

    申请号:US18248

    申请日:1993-02-16

    IPC分类号: F41B13/02 A63B69/02

    CPC分类号: F41B13/02

    摘要: A fencing blade is described comprising a substantially planar elongate strip having at least a portion thereof shaped to be non-planar in cross-section. In a preferred embodiment of the invention, a foil or sabre type blade is made from a planar, tapering, elongate steel billet pressed into a `U` or `V` shape along substantially two thirds of its length, the remaining one third of the blade being left flat. The blade may be formed of separate tang/shoulder and blade sections, which may be releaseably or permanently connected together.

    摘要翻译: 描述了围栏刀片,其包括基本上平面的细长条带,其至少一部分成形为横截面为非平面。 在本发明的优选实施例中,箔或刀形刀片由沿其长度的大约三分之二被压入“U”或“V”形的平面,锥形细长的钢坯制成,其余三分之一 刀片保持平坦。 叶片可以由单独的柄脚/肩部和叶片部分形成,其可以可释放地或永久地连接在一起。

    System and method for calibrating electron beam systems
    9.
    发明授权
    System and method for calibrating electron beam systems 失效
    用于校准电子束系统的系统和方法

    公开(公告)号:US4442361A

    公开(公告)日:1984-04-10

    申请号:US429948

    申请日:1982-09-30

    IPC分类号: H01J37/304

    CPC分类号: H01J37/3045

    摘要: A system and method for calibrating scanning beam systems, such as electron beam systems, so that a plurality of such systems are compatible one with another, thereby allowing an object that is scanned on one system to be transferred to another system while still maintaining proper alignment between the pattern(s) scanned on the object by one system and the pattern(s) scanned on the object by another system. A calibration plate, having an array of calibration marks thereon at prescribed locations, is made on a first system. This plate is then transferred to a second system where the location of the calibration marks is measured. The measured locations are fitted mathematically to the prescribed locations in order to minimize error. Nonetheless, some error will be present due to the slight misalignments and nonlinearities, such as mirror distortion, that are present between any two scanning beam systems. This error is determined by comparing the fitted measured locations to the prescribed locations. An error map is created that characterizes this error by location, for the particular scanning beam system being calibrated. The information contained in this error map is used to subsequently compensate the movement of the calibrated system, using interpolation when necessary, so that the movements of the calibrated system accurately track, and hence are aligned with, the movements of the first system. Internal compensation may also be performed on each system to account for known errors and nonlinearities associated with the operation of the individual system.

    摘要翻译: 用于校准诸如电子束系统的扫描光束系统的系统和方法,使得多个这样的系统彼此兼容,从而允许在一个系统上扫描的物体被转移到另一个系统,同时仍然保持适当的对准 在由一个系统在对象上扫描的图案和由另一个系统在对象上扫描的图案之间。 在第一系统上制造在规定位置上具有校准标记阵列的校准板。 然后将该板转移到第二系统,其中测量校准标记的位置。 测量位置在数学上拟合到规定的位置,以便最小化误差。 然而,由于存在于任何两个扫描光束系统之间的微小的不对准和非线性(例如镜面失真),将存在一些误差。 该误差通过将拟合的测量位置与规定位置进行比较来确定。 创建一个错误图,通过位置来表征该错误,对于正在校准的特定扫描光束系统。 包含在该误差图中的信息用于随后在必要时使用插值补偿校准系统的移动,使得校准系统的移动精确地跟踪第一系统的移动并因此与第一系统的运动对准。 也可以在每个系统上执行内部补偿以考虑与各个系统的操作相关联的已知误差和非线性。