• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A method for spot-knocking a CRT comprising interconnecting the lower-voltage gun elements including the heater, the cathode, the control electrode and the screen electrode, and applying spot-knocking voltages between the anode and the interconnected gun elements with the focus electrode floating electrically; that is, unconnected.
    公开号:SU1391509A3
    申请号:SU802918703
    申请日:1980-05-12
    公开日:1988-04-23
    发明作者:Фрэнсиз Хоупен Леонард
    申请人:Рка Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to the field of electronics and can be used in the manufacture of cathode-ray tubes (CRT),
    The aim of the invention is to increase the efficiency of burning a mounted CRT assembly and yield.
    Figure 1-4 shows the implementation of the method,
    The CRT (Fig. 1) contains a front panel, a screen 2. Panel 1 is hermetically connected to a cone 3, the narrow part of which is connected to the neck 4, ending with the pingels 5, In the neck 4 there is a mounted assembly of a two-potential electron gun. Each gun contains a heater 6, a cathode 7, a control electrode 8, a shield electrode 9, a focusing electrode 10, and an anode I1.
    The anode 1 is connected to the conductive coating 12 through the springs 13. The heater 6, the cathode 7, the control electrode 8 and the shielding electrode 9 are connected to the individual terminals 14 of the shtengel 5, the Focusing electrode 10 is connected to a separate terminal 15.
    During the burning period, pingear 5 with pins 14 and 15 is inserted into a connector (not shown), while pins 14 are connected to earth via pin 16. Pin 15 remains electrically free. Anode II is connected via pin 17 to a source 18 of a power frequency voltage.
    The anodic voltage increases from 0 to 35 kV, and then within 90–120 s to a value of 50 kV with packets of 0.1–0.2 seconds in intervals of 0.5–1.0 s in the form of one half year rectified pulses. . When using an electrode 10 unrelated to the burn process, breakdowns are avoided.
    The diagram shows (FIG. 1) a high-frequency source 19 connected to an interconnected electrode circuit that provides a high-frequency ignition of the arc in an assembled assembly. The firing pulses include five cycles of 300 kHz damped alternating current,
    The tube (Fig. 2) is provided with a ring 20 protecting the neck from the breakdown. The ring 20 is connected to the anode terminal.
    In the connection diagrams of three-potential tubes (Figs. 3 and 4) instead of one focusing electrode 10
    Three 10.1 - 10L3 are applied, two of which 10.1 and 10.3 are connected together and have a separate output.
    The burning operation is carried out in a similar manner, with the three focusing electrodes remaining free.
    According to the proposed method, the supply of pulsed anode voltage to an assembly with a free focusing electrode leads to
    electric arcs that propagate along the entire assembly ensured effective cleaning of glass and electrodes.
    The choice of the parameters of the pulsed anode voltage is determined by the following. When the voltage is less than 35 kV, it is difficult to realize reliable burning of the electrode assembly. With a voltage of 50 kV, intense evaporation is possible.
    glass and condensation of particles on the electrodes, which can lead to blockage of the holes of the electrodes. Overheating of the bulb of the tube is prevented by applying a variable voltage in the interval
    35-50 kV packages with a duration of 0.1-0.2 s with intervals of 0.5-1.0 s. Moreover, it is the limit of the duration of the packets that is determined by the possibility of organizing an effective assembly burn.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    Method of burning an assembled assembly of an electron gun in a rolled-out cathode-ray tube, including the supply of a pulsed anode voltage of industrial frequency and the ignition of an electric arc between the anode and interconnected heater, cathode, control and shielding electrodes of the gun applying high voltage in the zone of maximum anode voltage , characterized in that, in order to increase the efficiency of the method and the yield of the useful ones, the focusing electrode is left electrically unrelated, the pulsed anode feed voltage is carried out by a continuous increase from 0 to 35 kV, and then for 90 - I20 s - up to 50 kV packets with a duration of 0.1 - 0.2 s at intervals of 0.5-1.0 s in the form of half-wave Silent pulses.
    nineteen
    FIG. 2
    shit1 t "t j.
    FIG.
    类似技术:
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    同族专利:
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    MX147211A|1982-10-21|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3323854A|1965-04-19|1967-06-06|Motorola Inc|Apparatus for cleaning the elements of a cathode ray tube|
    US3736038A|1971-03-26|1973-05-29|Mitsubishi Kenki Kk|Spot-knocking method for electronic tubes|
    US3966287A|1975-06-27|1976-06-29|Rca Corporation|Low-voltage aging of cathode-ray tubes|
    US4052776A|1976-09-30|1977-10-11|Zenith Radio Corporation|Method of spot-knocking an electron gun assembly in a color television picture tube|
    US4111507A|1977-05-13|1978-09-05|Gte Sylvania Incorporated|Apparatus for high voltage conditioning cathode ray tubes|
    JPS6138570B2|1977-06-08|1986-08-29|Tokyo Shibaura Electric Co|
    JPS6138571B2|1977-08-11|1986-08-29|Tokyo Shibaura Electric Co|
    US4125306A|1977-11-17|1978-11-14|Rca Corporation|Spiked low-voltage aging of cathode-ray tubes|JPS5769644A|1980-10-20|1982-04-28|Hitachi Ltd|Manufacture of cathode-ray tube|
    US4395242A|1981-08-19|1983-07-26|Rca Corporation|Method of electrically processing a CRT mount assembly to reduce afterglow|
    US4515569A|1983-04-22|1985-05-07|Rca Corporation|Method of electrically processing a CRT mount assembly to reduce arcing and afterglow|
    JPH0439176B2|1983-10-07|1992-06-26|
    US4682963A|1985-03-20|1987-07-28|North American Philips Consumer Electronics Corp.|High voltage processing of CRT mounts|
    DE3510316A1|1985-03-22|1986-10-02|Ulrich 4353 Oer-Erkenschwick Müter|Method for improved regeneration of cathode-ray tubes, by automatic control|
    US4911667A|1985-12-06|1990-03-27|North American Philips Consumer Electronics Corp.|Process for reconditioning cathode ray tubes|
    JP2641461B2|1987-09-18|1997-08-13|株式会社日立製作所|Aging method of cathode ray tube|
    US4818912A|1988-03-15|1989-04-04|Rca Licensing Corporation|CRT with arc suppressing means on insulating support rods|
    US4883438A|1988-06-29|1989-11-28|Rca Licensing Corp.|Method for spot-knocking an electron gun mount assembly of a CRT|
    US4883437A|1988-06-29|1989-11-28|Rca Licensing Corp.|Method for spot-knocking an electron gun mount assembly of a crt utilizing a magnetic field|
    JPH076137U|1993-06-29|1995-01-27|武智ツヤ|Tea bowl and container|
    KR970008286A|1995-07-28|1997-02-24|구자홍|Method of manufacturing cathode ray tube|
    US6296538B1|2000-01-07|2001-10-02|Sony Corporation|Insulation diaphragm for getter flash turntable and method of implementing and using same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/040,054|US4214798A|1979-05-17|1979-05-17|Method for spot-knocking the electron-gun mount assembly of a CRT|
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