Cathode ray tube with improved cathode structure
    22.
    发明授权
    Cathode ray tube with improved cathode structure 失效
    具有改善阴极结构的阴极射线管

    公开(公告)号:US5959398A

    公开(公告)日:1999-09-28

    申请号:US798193

    申请日:1996-12-09

    CPC classification number: H01J1/22

    Abstract: A cathode ray tube is provided with an electron gun which comprises a cathode structure which contains an electron-emitting material at an end portion and in which a heating element of bifilarly wound wire is accommodated. Except in the vicinity of the ends of the wire, said wire is provided with an electrically insulating layer (46) whose radius decreases, near the transition between the covered wire and the uncovered ends, by at least 15%, preferably at least 30%. Preferably, the layer (46) having the reduced radius continues for at least 100 .mu.m in the direction of the transition (54). The distance between the transition (54) and the electric connection (61) is smaller than 250 .mu.m, preferably smaller than 150 .mu.m. As a result, the number of uncovered turns between the electric connection (61) and the transition (54) is reduced to below five.

    Abstract translation: 阴极射线管设置有电子枪,该电子枪包括阴极结构,该阴极结构在端部包含电子发射材料,并且其中容纳有双线缠绕的线的加热元件。 除了线的端部附近,所述导线设置有电绝缘层(46),其半径在包线和未覆盖端之间的过渡附近减小至少15%,优选至少30% 。 优选地,具有减小的半径的层(46)在过渡(54)的方向上继续至少100微米。 过渡(54)和电气连接(61)之间的距离小于250μm,优选小于150μm。 结果,电连接(61)和过渡(54)之间的未覆盖匝数减少到5以下。

    Thermionic electric converters
    23.
    发明授权
    Thermionic electric converters 失效
    热电转换器

    公开(公告)号:US5942834A

    公开(公告)日:1999-08-24

    申请号:US967026

    申请日:1997-11-10

    Applicant: Edwin D. Davis

    Inventor: Edwin D. Davis

    CPC classification number: H01J45/00

    Abstract: An improved thermionic electric converter uses a wire grid cathode to provide a larger surface area for electrons to boil off. Alternately or additionally, the larger electron emission surface area can be achieved by using a curved electron emission surface. A laser provides quantum interference to electrons just before they reach the anode, thereby lowering their energy levels such that they more readily are captured by the anode. The arrangement provides improved conversion efficiency and reduced electron scatter.

    Abstract translation: 改进的热电转换器使用线栅阴极为电子提供较大的表面积以使其沸腾。 替代地或另外地,可以通过使用弯曲的电子发射表面来实现较大的电子发射表面积。 激光在它们到达阳极之前对电子提供量子干涉,从而降低它们的能级,使得它们更容易被阳极俘获。 该装置提供改进的转换效率和减少的电子散射。

    Electron emitting filaments for electron discharge devices
    25.
    发明授权
    Electron emitting filaments for electron discharge devices 失效
    用于电子放电装置的电子发射丝

    公开(公告)号:US4760306A

    公开(公告)日:1988-07-26

    申请号:US503373

    申请日:1983-06-10

    CPC classification number: H01J9/04 H01J1/15

    Abstract: Electrons are copiously emitted by a device comprising a loop-shaped filament made of lanthanum hexaboride. The filament is directly heated by an electrical current produced along the filament by a power supply connected to the terminal legs of the filament. To produce a filament, a diamond saw or the like is used to cut a slice from a bar made of lanthanum hexaboride. The diamond saw is then used to cut the slice into the shape of a loop which may be generally rectangular, U-shaped, hairpin-shaped, zigzag-shaped, or generally circular. The filaments provide high electron emission at a relatively low operating temperature, such as 1600.degree. C. To achieve uniform heating, the filament is formed with a cross section which is tapered between the opposite ends of the filament to compensate for non-uniform current distribution along the filament due to the emission of electrons from the filament.

    Abstract translation: 电子被包括由六硼化镧制成的环形灯丝的装置大量发射。 通过连接到灯丝的端子腿的电源,沿着灯丝产生的电流直接加热灯丝。 为了生产细丝,使用金刚石锯等来从六硼化镧棒制成切片。 然后将金刚石锯切成切割成环形的形状,其可以是大致矩形的,U形的,发夹形的,之字形的或大致圆形的。 长丝在相对较低的工作温度(例如1600℃)下提供高电子发射。为了均匀加热,灯丝形成有横截面,该横截面在灯丝的相对端之间是锥形的,以补偿不均匀的电流分布 由于从灯丝发射电子而沿着灯丝。

    Wire mesh cathode
    26.
    发明授权
    Wire mesh cathode 失效
    丝网阴极

    公开(公告)号:US3976909A

    公开(公告)日:1976-08-24

    申请号:US595287

    申请日:1975-07-11

    CPC classification number: H01J19/10

    Abstract: A first array of spaced wires is in angular contact with a second array of spaced wires so as to from a wire mesh. The first array has a fewer number of wires than the second array.

    Abstract translation: 间隔开的第一线阵列与间隔开的电线的第二阵列角度接触,以便从金属丝网。 第一个阵列的数量比第二个数组少。

    Cathode having a cavity in the emissive element
    27.
    发明授权
    Cathode having a cavity in the emissive element 失效
    在电磁元件中具有空气的阴极

    公开(公告)号:US3755705A

    公开(公告)日:1973-08-28

    申请号:US3755705D

    申请日:1972-01-31

    Applicant: PHILIPS CORP

    Inventor: ZWANENBURG G

    CPC classification number: H01J37/065 H01J1/16

    Abstract: A cavity is provided in a wire of a directly-heated cathode so that the temperature at the area of the cavity will be higher when a current is passed through the wire than on either side of the cavity. As a result, the cavity acts as a limited emissive surface and the cathode obtains a longer service life and a more stable construction.

    Abstract translation: 在直接加热的阴极的线材中设置空腔,使得当电流通过电线时,空腔区域的温度将高于空腔的任一侧。 结果,空腔充当有限的发射表面,阴极获得更长的使用寿命和更稳定的结构。

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