Picture display device having an improved bandwidth
    1.
    发明授权
    Picture display device having an improved bandwidth 失效
    图像显示装置具有改进的带宽

    公开(公告)号:US06310434B1

    公开(公告)日:2001-10-30

    申请号:US09103457

    申请日:1998-06-24

    IPC分类号: H01J2904

    CPC分类号: H01J29/04 H01J29/96

    摘要: A picture display device having a cathode which includes two electric current conductors between which a video signal is applied, for applying a video signal to the cathode to modulate an electron beam emitted from the cathode. To increase the feasible modulation frequency, the inductance of the two electric conductors is reduced by holding one part of the length of the conductors closer together than their spacing over another part of the same length.

    摘要翻译: 一种具有阴极的图像显示装置,其具有施加有视频信号的两个电流导体,用于向阴极施加视频信号以调制从阴极发射的电子束。 为了增加可行的调制频率,通过将导体长度的一部分保持在一起的距离比在相同长度的另一部分上的间距更小,可以减小两个电导体的电感。

    Oxide cathode
    2.
    发明授权
    Oxide cathode 失效
    氧化物阴极

    公开(公告)号:US4904897A

    公开(公告)日:1990-02-27

    申请号:US677948

    申请日:1984-12-04

    CPC分类号: H01J1/26

    摘要: An oxide cathode comprising a base 1 which consists substantially of titanium and a heater element 5 coated with aluminium oxide 6 to heat the base 1, which bears a porous alkaline earth metal oxide emissive layer 4. When the surface of the titanium base 1 which is opposed to the heater element 5 bears a metal layer 7 consisting at least of one of the metals Pt, Mo, Ta and W, a solution is obtained to the problem occurring in titanium cathodes in that titanium in contact with aluminium oxide is not chemically stable. The metal layer preferably consisits of pure tungsten and is formed by chemical vapour desposition (CVD). The metal layer is preferably from 1 to 10 .mu.m thick.

    摘要翻译: 一种氧化物阴极,其包括基本上由钛组成的基体1和涂覆有氧化铝6的加热元件5,以加热承载多孔碱土金属氧化物发射层4的基体1.当钛基1的表面 与加热器元件5相对的是具有至少由金属Pt,Mo,Ta和W中的至少一种构成的金属层7,获得了在钛阴极中发生的问题的解决方案是,与氧化铝接触的钛不是化学稳定的 。 金属层优选地是纯钨,并且通过化学气相沉积(CVD)形成。 金属层的厚度优选为1〜10μm。

    Method of manufacturing a bundle of optical fiber parts
    6.
    发明授权
    Method of manufacturing a bundle of optical fiber parts 失效
    制造一束光纤部件的方法

    公开(公告)号:US4737215A

    公开(公告)日:1988-04-12

    申请号:US847989

    申请日:1986-04-03

    IPC分类号: G02B6/04 G02B6/08 G02B6/44

    CPC分类号: G02B6/448

    摘要: A predetermined number of optical fibre parts (27) is provided on a rectangular frame (1), the fibre parts extending parallel to each other along a straight line between two opposite first sides (3) of the frame. These first sides (3) comprise comb-shaped fibre guides (5) with teeth (13), between which the fibre parts (27) are guided so that the fibre guides determine a first relative distance between the fibre parts. The first sides (3) are pivotably connected to the two second sides (7) of the frame (1), which is then deformed to a parallelogram until the portions of the fibre parts (27) located inside the frame have a predetermined second relative distance. A permanent connection between the fibre parts (27) is established so that a ribbon of fibre parts is obtained. A number of such ribbons can be stacked with the interposition of strip-shaped spacers (29) to form a bundle.

    摘要翻译: 预定数量的光纤部件(27)设置在矩形框架(1)上,纤维部分沿框架的两个相对的第一边(3)之间的直线彼此平行延伸。 这些第一侧面(3)包括具有齿(13)的梳形光纤导向器(5),纤维部分(27)被引导在其之间,使得纤维引导件确定纤维部件之间的第一相对距离。 第一侧(3)可枢转地连接到框架(1)的两个第二侧(7),然后将其变形为平行四边形,直到位于框架内部的纤维部分(27)的部分具有预定的第二相对 距离。 建立纤维部件(27)之间的永久连接,从而获得纤维部件带。 多个这样的带可以通过插入带状间隔件(29)堆叠以形成束。