中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

41 records (took 0.019 seconds)

    Cathode ray tube with indirectly heated cathode
    2.
    发明公开
    Cathode ray tube with indirectly heated cathode 审中-公开
    CRT与间接加热的阴极

    公开(公告)号：EP1067572A2

    公开(公告)日：2001-01-10

    申请号：EP00114001.1

    申请日：2000-07-04

    Applicant: Hitachi, Ltd.

    Inventor： Koizumi, Sachio, c/o Hitachi Ltd., IP Group ,  Komiya, Toshifumi, c/o Hitachi Ltd., IP Group ,  Iwamura, Norio, c/o Hitachi Ltd., IP Group

    IPC: H01J1/20

    CPC classification number: H01J1/26 ,  H01J29/04

    Abstract: A cathode ray tube has a vacuum envelope formed of a panel portion (11), a neck portion (12) and a funnel portion (13) for connecting the panel portion and the neck portion, a phosphor screen (14) formed on an inner surface of the panel portion, and an electron gun (19) housed in the neck portion and including a cathode (40) and a heater (31a). The cathode includes a disk-shaped cathode base metal (41) having an oxide coating (42) thereon and a cylindrical cathode sleeve (43) housing the heater. The cylindrical cathode sleeve includes a small-diameter portion (43c) having the disk-shaped cathode base metal fitted within an end thereof and housing a top portion of the heater and a large-diameter portion housing leg portions (31) of the heater, and an axial length SL (mm) of the small-diameter portion and an outside diameter DD (mm) of the disk-shaped cathode base metal satisfies the following inequation: 0.5 ≤ SL/DD ≤ 4.0.

    CATHODE FOR ELECTRONIC TUBE
    3.
    发明公开
    CATHODE FOR ELECTRONIC TUBE 失效
    阴极的电子管

    公开(公告)号：EP0869527A4

    公开(公告)日：1999-03-10

    申请号：EP97925304

    申请日：1997-06-10

    Applicant: MITSUBISHI ELECTRIC CORP

    Inventor： OHIRA TAKUYA ,  SAITO MASATO ,  TERAMOTO HIROYUKI

    IPC: H01J1/142 ,  H01J1/26 ,  H01J1/14

    CPC classification number: H01J1/142 ,  H01J1/26

    Abstract: The conventional cathode for electronic tube has such a problem that the metal constituting the base material of the tube is thermally deformed and the fluctuation of the cut-off voltage becomes relatively large when an electronic tube is operated for a long time. In order to solve this problem, a cathode for electronic tube which can reduce the thermal deformation of the base material and does not allow the large fluctuation of the cut-off voltage is provided. The coefficient of thermal expansion of the metal constituting the base material (1) is made even by mixing the same metal (14) as that of a metallic layer (13) formed on the base material (1) in the metal constituting the base material (1), and the deformation of the base material (1) is suppressed by preventing the diffusion of the metal of the layer (13) to the base material (1).

    Cathode structure for an electron tube
    5.
    发明公开
    Cathode structure for an electron tube 失效
    KathodenstrukturfüreineElektronenröhre。

    公开(公告)号：EP0534842A1

    公开(公告)日：1993-03-31

    申请号：EP92402605.7

    申请日：1992-09-23

    Applicant: GOLDSTAR CO. Ltd.

    Inventor： Lee, Gyeong Sang

    IPC: H01J1/26

    CPC classification number: H01J1/26

    Abstract: This invention relates to a cathode structure for an electron gun of an electron tube, comprising a hollow, cylindrical sleeve (1) having a heater (5) mounted therein and a cathode cap (6) disposed at its top to contain an electron emission material (7); a hollow, cylindrical cathode holder (2) for supporting the sleeve; and a unitary, trumpet-shaped support (3) formed in its peripheral wall with a plurality of through-holes (3a) for preventing thermal deformating thereof and attached at one end to the upper end of the cathode holder (4a) and at the other end to the lower end of the sleeve (4b), thereby firmly supporting a cathode body relative to the cathode holder.

    Abstract translation: 本发明涉及一种用于电子管的电子枪的阴极结构，包括一个中空的圆柱形套管（1），其中安装有加热器（5），阴极帽（6）设置在其顶部以容纳电子发射材料 （7）; 用于支撑套筒的中空的圆柱形阴极支架（2） 以及在其周壁上形成有多个用于防止其变形的通孔（3a）并且在一端附接到阴极保持件（4a）的上端的整体喇叭形支撑件（3） 另一端连接到套筒（4b）的下端，从而相对于阴极保持器牢固地支撑阴极体。

    Dispenser cathode structure for use in electron gun
    6.
    发明公开
    Dispenser cathode structure for use in electron gun 失效
    用于电子枪的分配器阴极结构

    公开(公告)号：EP0436360A3

    公开(公告)日：1991-11-21

    申请号：EP90314024.2

    申请日：1990-12-20

    Applicant: SAMSUNG DISPLAY DEVICES CO., LTD.

    Inventor： Jang, Dong-gil

    IPC: H01J1/26 ,  H01J1/28

    CPC classification number: H01J29/04 ,  H01J1/26

    Abstract: A dispenser cathode for an electron gun comprising a reservoir (2) for thermoelectron emissive material (1) and a sleeve (3) which has an outward flange at the top thereof and receives the reservoir within its upper portion. A heat shielding tube (5) has an inward flange at the top thereof which corresponds to and overlaps with the flange of the sleeve (3) and is welded thereto. A holder supports the heat shielding tube.

    Cathode for an electric discharge tube
    7.
    发明公开
    Cathode for an electric discharge tube 失效
    Kathodefüreine elektrischeEntladungsröhre。

    公开(公告)号：EP0391466A1

    公开(公告)日：1990-10-10

    申请号：EP90200733.5

    申请日：1990-03-28

    Applicant: Philips Electronics N.V.

    Inventor： Derks, Petrus Jacobus Antonius

    IPC: H01J1/26 ,  H01J1/15

    CPC classification number: H01J1/26 ,  H01J1/20 ,  H01J9/04

    Abstract: Cathode having a short heating time and a long lifetime for an electric discharge tube. The cathode comprises a metal (particularly nickel) support base coated with a layer of potentially electron-emissive material, which support base has a thickness ranging between 20 and 150 µm, while the metal crystallites have a size which does not permit of any further crystallite growth or recrystallization. Particularly, the crystallites of the support base have a size which corresponds to the thickness of the support base.

    Abstract translation: 阴极对于放电管具有短的加热时间和长的使用寿命。 阴极包括涂覆有潜在电子发射材料层的金属（特别是镍）支撑基底，该支撑基底具有20至150μm的厚度，而金属微晶具有不允许任何进一步的尺寸 微晶生长或重结晶。 特别地，支撑基底的微晶具有对应于支撑基底的厚度的尺寸。

    Cathode ray tube with indirectly heated cathode
    10.
    发明公开
    Cathode ray tube with indirectly heated cathode 审中-公开
    Kathodenstrahlröhremit indirekt geheizter Kathode

    公开(公告)号：EP1067572A3

    公开(公告)日：2002-08-21

    申请号：EP00114001.1

    申请日：2000-07-04

    Applicant: Hitachi, Ltd.

    Inventor： Koizumi, Sachio, c/o Hitachi Ltd., IP Group ,  Komiya, Toshifumi, c/o Hitachi Ltd., IP Group ,  Iwamura, Norio, c/o Hitachi Ltd., IP Group

    IPC: H01J1/20 ,  H01J29/04

    CPC classification number: H01J1/26 ,  H01J29/04

    Abstract: A cathode ray tube has a vacuum envelope formed of a panel portion (11), a neck portion (12) and a funnel portion (13) for connecting the panel portion and the neck portion, a phosphor screen (14) formed on an inner surface of the panel portion, and an electron gun (19) housed in the neck portion and including a cathode (40) and a heater (31a). The cathode includes a disk-shaped cathode base metal (41) having an oxide coating (42) thereon and a cylindrical cathode sleeve (43) housing the heater. The cylindrical cathode sleeve includes a small-diameter portion (43c) having the disk-shaped cathode base metal fitted within an end thereof and housing a top portion of the heater and a large-diameter portion housing leg portions (31) of the heater, and an axial length SL (mm) of the small-diameter portion and an outside diameter DD (mm) of the disk-shaped cathode base metal satisfies the following inequation:0.5 ≤ SL/DD ≤ 4.0.

    Abstract translation: 阴极射线管具有由面板部分（11），颈部部分（12）和用于连接面板部分和颈部部分的漏斗部分（13）形成的真空外壳，形成在内部的荧光屏（14） 面板部分的表面和容纳在颈部中并包括阴极（40）和加热器（31a）的电子枪（19）。 阴极包括其上具有氧化物涂层（42）的盘形阴极基底金属（41）和容纳加热器的圆柱形阴极套管（43）。 圆柱形阴极套筒包括一个小直径部分（43c），该小直径部分（43c）具有安装在其端部中的圆盘状阴极基体金属并且容纳加热器的顶部和容纳加热器的腿部（31）的大直径部分， 并且盘状阴极母材的小直径部分的轴向长度SL（mm）和外径DD（mm）满足以下不等式：0.5≤SL/DD≤4.0。

Patent Agency Ranking