Direct heating cathode structure for electron tubes
    3.
    发明授权
    Direct heating cathode structure for electron tubes 失效
    电子管的直接加热阴极结构

    公开(公告)号:US3745403A

    公开(公告)日:1973-07-10

    申请号:US3745403D

    申请日:1971-11-30

    Applicant: HITACHI LTD

    Inventor: MISUMI A

    CPC classification number: H01J1/14 H01J1/15 H01J2201/2878

    Abstract: A direct heating cathode structure for electron tubes, which has a low electrical conductivity cermet layer, an intermediate metal layer of a material capable of promoting the electron emission of electron emissive materials and an electron emissive material layer successively laminated on a cathode body of a high resistivity alloy. The cermet layer in this cathode structure provides improved heat generating effect of heater current on the cathode body, permits passage of adequate current into the intermediate metal layer and electron emissive material layer, and prolongs the service life of the cathode.

    Display device based on indirectly heated thermionic cathodes
    4.
    发明授权
    Display device based on indirectly heated thermionic cathodes 失效
    基于间接加热的热阴极的显示装置

    公开(公告)号:US5831382A

    公开(公告)日:1998-11-03

    申请号:US722337

    申请日:1996-09-27

    Abstract: A novel self-supporting flat display screen based on thermionic emission of indirectly heated cathode structures (23, 30, 31, 32, 34; 230, 32, 34) is provided utilizing micro-filament heaters (21) that can be interconnected in any predetermined manner. The planar micro-filament (21) construction utilizes Dewer and Dewer-like techniques (10, 11, 12, 13, 14, 15) for controlling the thermal energy emitted and lowering the power consumption of a display device. Several control electrode techniques (42, 52, 33, 133, 142) are also incorporated in the invention to reduce the voltage levels required to control the display and simplify the overall electronic control circuitry needed by the display device. These techniques are combined to provide a high intensity, high contrast flat panel display using low voltage off-the-shelf electronic driver circuitry.

    Abstract translation: 使用微丝加热器(21)提供基于间接加热的阴极结构(23,30,31,32,34; 230,32,34)的热离子发射的新型自支撑平面显示屏,其可以任何 预先确定的方式。 平面微丝(21)结构采用了杜瓦式和类似杜氏的技术(10,11,12,13,14,15)来控制发射的热能并降低显示装置的功耗。 本发明还包括若干控制电极技术(42,52,33,133,142),以减少控制显示器所需的电压水平并简化显示装置所需的整体电子控制电路。 这些技术被组合以提供使用低电压现成电子驱动器电路的高强度,高对比度平板显示器。

    Method for manufacturing a cathode
    5.
    发明授权
    Method for manufacturing a cathode 失效
    阴极制造方法

    公开(公告)号:US5595933A

    公开(公告)日:1997-01-21

    申请号:US520444

    申请日:1995-08-29

    CPC classification number: H01J29/04 H01J1/20 H01J2201/2878 Y10S148/135

    Abstract: A low-power cathode can be obtained by arranging it on a substrate (1), preferably of silicon, which is entirely or partly removed at the location of the emissive structure (11) by means of, for example, anisotropic etching. Because of its low power, the cathode is particularly suitable for multi-beam applications.

    Abstract translation: 通过将其布置在通过例如各向异性蚀刻在发光结构(11)的位置处完全或部分地去除的衬底(1)上,优选由硅构成,可以获得低功率阴极。 由于其低功率,阴极特别适用于多光束应用。

    Cathode
    8.
    发明授权
    Cathode 失效
    阴极

    公开(公告)号:US5475281A

    公开(公告)日:1995-12-12

    申请号:US415025

    申请日:1995-03-30

    CPC classification number: H01J29/04 H01J1/20 H01J2201/2878 Y10S148/135

    Abstract: A low-power cathode can be obtained by arranging it on a substrate (1), preferably of silicon, which is entirely or partly removed at the location of the emissive structure (11) by means of, for example, anisotropic etching. Because of its low power, the cathode is particularly suitable for multi-beam applications.

    Abstract translation: 通过将其布置在通过例如各向异性蚀刻在发光结构(11)的位置处完全或部分地去除的衬底(1)上,优选由硅构成,可以获得低功率阴极。 由于其低功率,阴极特别适用于多光束应用。

    Cathode heater and cathode assembly for microwave power tubes
    9.
    发明授权
    Cathode heater and cathode assembly for microwave power tubes 失效
    用于微波功率管的阴极加热器和阴极组件

    公开(公告)号:US5350969A

    公开(公告)日:1994-09-27

    申请号:US802076

    申请日:1991-12-03

    Inventor: Todd R. Gattuso

    CPC classification number: H01J23/04 H01J1/22 H01J9/08 H01J2201/2878

    Abstract: A cathode heater includes a patterned conductor embedded within a dielectric substrate. The ceramic substrate has a pair of conductors over the respective surfaces thereof to provide electrical contact for the heater. To assemble the substrates having the conductors, the substrates and printed conductive patterns are fired to provide a composite multi-layer ceramic heater which can be used to heat cathode electrodes in microwave tubes such as travelling wave tubes.

    Abstract translation: 阴极加热器包括嵌入电介质基板内的图案化导体。 陶瓷基板在其相应表面上具有一对导体以提供加热器的电接触。 为了组装具有导体的基板,对基板和印刷导电图案进行烧制以提供可用于加热诸如行波管的微波管中的阴极电极的复合多层陶瓷加热器。

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