• 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:
    The electron gun includes a pair of electrodes between which a resistive lens structure comprising a stack of alternate apertured plates and resistive blocks is disposed. A first portion of the resistive stack is electrically paralleled with another stack of resistive blocks whereby bleeder current through the resistive lens structure results in a compound linear potential profile. The other stack of resistive blocks may comprise a second stack in the same lens structure interleaved with the apertured plates of the lens structure or it may constitute together with a different set of aperture plates a second resistive lens structure between a different pair of electrodes of the gun.
    公开号:SU1266477A3
    申请号:SU802976301
    申请日:1980-08-27
    公开日:1986-10-23
    发明作者:Дэвид Винарски Нормал；Вольф Кохен Роджер；Пол Бортфелд Дэвид；Джозеф Вилэнд Леон
    申请人:Рка Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    connector 19 is connected to one of the electrode plates of the second resistive lens. Experimental and theoretical analyzes determine that the smallest aberration values are provided with a ratio of the number of steps of the first and second sections equal to 1 / 2-4 / 3 and the corresponding ratio of resist
    of these areas 1 / 4-4 / 7. In the proposed projector, the required voltage distribution in the area of the main lens of the lens is achieved, which is achieved by using identical in parameters of the same type of resistive and insulating bars. 1 Cp ffly 8 ill.
    The invention relates to electronic engineering and can be used in color receiving television tubes and other electron-beam devices (ELL). The purpose of the invention is to improve the manufacturability of an electronic projector and simplify its design. Figure 1 shows the electronic projector, a general view; Fig. 2 shows the same section along the plane of the cathode-modulator nodes; Fig. 3 electrode plate, with resistive bars; Fig. 4 shows a constructive arrangement of stacks of electrode plates and resistive bars; Fig. 3 shows an electronic searchlight with pairs of resistive bars in the steps of the stack; Fig. 6-8 are variants of construction of resistive lenses and corresponding voltage distribution profiles. The electronic searchlight 1 contains (Figures 1 and 2) two parallel glass support rods 2 on which elements of the electronic searchlight, cup-shaped cathodes 3, modulator 4, shielding electrode 5, first 6, second 7 and third 8 focusing electrodes are mounted. The modulator 4 and the screening electrode 5 are flat metal elements, each of which contains three holes arranged in a row. The focusing electrodes are made in the form of glasses, in the bottom of which three holes are also made. The third focusing electrode 8 is complete with a protective cap U, to which spring strut 10 is attached to install the searchlight inside the ELL neck. A first resistive lens is installed between the first 6 and second 7 focusing electrodes, and a second resistive lens is mounted between the second 7 and third 8 focusing electrodes, each resistive lens formed by stacks of interleaved electrode plates 11 with interposed and spaced elements in the form of either resistive bars 12 or insulating bars 13 (fig.Z). On the opposite surfaces of each resistive bar 12, two electrically unrelated metal films 14 are applied, connected through a layer 15 of high-resistance resistive material located on the surface of the bar 12, perpendicular to the plane of the electrode plates 11 (Fig. 4). The resistive bars are connected to the electrode plates through the brazing alloy 16, and to improve the wetting part of the metal film 14 may be covered with a nickel layer 17. As a result, a stack of electrically connected elements is formed, representing a voltage divider connected to the extreme electrodes of the stack. The second focusing electrode 7 is provided with a supply terminal 18 (Fig. 5), and the first focusing electrode 6 is connected to one of the electrode plates of the second resistive lens by means of a connector 19. With such electrical connections, the stack of the first resistive lens is electrically parallel
    connected to the first along the beam section of the second resistive lens, separated from its second section by an electrode plate, to which connector 19 is connected. As a result, a certain piecewise-linear potential distribution profile is established along the stack of the second resistive lens, which can be as close as possible to the required exponential distribution.
    In the embodiment of the embodiment (Fig. 5), the first resistive lens can be omitted and only the second resistive lens can be used. At the same time, in the first and second stages of the stack of the first section, two opposite resistive bars 12 can be installed. Then, in these steps, the voltage drop is two times smaller than the steps in which there is one resistive bar. The additional resistive bars included in pairs, according to their electrical connection, are similar to the resistive bars of the first resistive lens.
    The number of steps in the resistive line should be chosen taking into account the fact that the voltage drop on one resistive bar did not exceed 4 kV. Otherwise, breakdown may occur. On the other hand, an excessive increase in the number of steps unnecessarily complicates the design.
    In an embodiment of resistive lenses (Figs. 6-8), it is shown how by selecting the number of steps, the number of resistive bars and selecting an electrode plate separating the areas of the second resistive lens, different voltage distribution profiles along the length of the beam forming path can be obtained. Experimental and theoretical analyzes make it possible to determine that the smallest aberrations are ensured with the ratio of the number of steps of the first section to the number of stages of the second section equal to 1 / 2-4 / 3, and the corresponding ratio of the resistances of these sections equal to 1 / 4-4 / 7 .
    Thus, in the proposed electronic searchlight, the necessary is provided (close to expo664774
    The potential distribution of the voltage in the region of the main focusing lens, as well as this distribution, is achieved by using 5 identical resistive and insulating bars of the same type, which simplifies the design of the projector and increases its manufacturability. ten
    权利要求:
    Claims (2)
    [1]
    Invention Formula
    1. An electronic searchlight containing cathode modulator along the beam
    15 node, the first, second and third focusing electrodes, as well as a variety of resistive lenses placed between the focusing electrodes and electrically formed in piles
    20 closed steps of alternating electrode plates with holes fastened together, and distance resistive bars, while
    the outermost of the electrode plates of resistive lenses are electrically connected to the focusing electrodes, the second and third of which are provided with supply terminals, characterized in that, in order to improve the manufacturability and simplify the design, the first resistive lens is mounted between the first and second focusing electrodes, and the second resistive lens is installed between the second and third focusing electrodes, while the first resistive lens is electrically connected in parallel with the first of two lenses the beam is the area of the second resistive lens, and the ratio of the number of steps of the first section to the number of steps of the second section is 1 / 2-4 / 3 and the ratio of the resistances of these areas is 1 / 4-4 / 7 with the same dimensions and resistances of the resistive bars.
    2. The searchlight according to claim 1, about tl and h ayushch and with the fact that each stack of the first section of the second resistive lens contains two resistive bars located opposite to the plane of symmetry of the holes
    [2]
    electrode plates, and each stack of the second portion of the resistive lens contains one resistive bar.
    BM 25f (V- -
    ... a
    k
    Fig 7
    25AJ S
    / 3bkylb
    9.bkV BkVfig. AT
    类似技术:
    公开号 | 公开日 | 专利标题
    US3932786A|1976-01-13|Electron gun with a multi-element electron lens
    CA1051500A|1979-03-27|Electron gun having an extended field electrostatic focus lens
    US4143298A|1979-03-06|Television cathode ray tube having a voltage divider providing temperature-invariant voltage and associated method
    SU1266477A3|1986-10-23|Electron gun
    US3873867A|1975-03-25|Support and focus structure for photomultiplier
    CA1135766A|1982-11-16|Colour display tube with plural beam gunhaving converging and focusing electrodes
    GB1602135A|1981-11-04|Electron gun having a distributed electrostatic lens
    KR900002902B1|1990-05-03|Color display tube
    US2219117A|1940-10-22|Electron discharge device
    NL8102200A|1982-12-01|COLOR IMAGE TUBE.
    US2533790A|1950-12-12|High-tension electrostatic electron lens
    EP0048510B1|1984-06-13|Cathode ray tube
    US4370594A|1983-01-25|Resistive lens structure for electron gun
    NL7904653A|1980-12-16|COLOR IMAGE TUBE.
    US4128790A|1978-12-05|Cathode ray tube for displaying colored pictures
    US4281270A|1981-07-28|Precoated resistive lens structure for electron gun and method of fabrication
    US4243912A|1981-01-06|Simplified resistive lens electron gun with compound linear voltage profile
    US4253041A|1981-02-24|Extended field electron gun having a synthesized axial potential
    US2087327A|1937-07-20|Electron discharge device
    US2117709A|1938-05-17|Electron discharge device
    US4323813A|1982-04-06|Spring-loaded resistive lens structure for electron gun
    US3465401A|1969-09-09|Electron-discharge devices
    US3702950A|1972-11-14|Electrostatic focussing-type television picture tube utilizing a plurality of metal disks
    US2796546A|1957-06-18|Damp rod construction for cathode ray tube grid structure
    NL8400779A|1985-10-01|CATHED BEAM TUBE.
    同族专利:
    公开号 | 公开日
    DE3032486A1|1981-03-12|
    CA1143775A|1983-03-29|
    GB2057186A|1981-03-25|
    FR2464554A1|1981-03-06|
    DD153021A5|1981-12-16|
    PL226415A1|1981-07-10|
    BR8005321A|1981-03-04|
    IT1132339B|1986-07-02|
    JPS5928938B2|1984-07-17|
    JPS5636851A|1981-04-10|
    PL130392B1|1984-08-31|
    FR2464554B1|1985-04-12|
    GB2057186B|1983-08-10|
    IT8024035D0|1980-08-06|
    US4243911A|1981-01-06|
    FI802646A|1981-03-01|
    DE3032486C2|1984-06-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE715021C|1933-02-06|1941-12-17|Telefunken Gmbh|Electric electron collecting lens for high vacuum electron beam tubes|
    US2143390A|1933-12-30|1939-01-10|Telefunken Gmbh|Electron tube|
    US3995194A|1974-08-02|1976-11-30|Zenith Radio Corporation|Electron gun having an extended field electrostatic focus lens|
    US3932786A|1974-11-29|1976-01-13|Rca Corporation|Electron gun with a multi-element electron lens|
    US4010312A|1975-01-23|1977-03-01|Rca Corporation|High resistance cermet film and method of making the same|
    US4091144A|1976-05-24|1978-05-23|Rca Corporation|Article with electrically-resistive glaze for use in high-electric fields and method of making same|
    US4124810A|1977-06-06|1978-11-07|Rca Corporation|Electron gun having a distributed electrostatic lens|
    US4143298A|1977-09-01|1979-03-06|Zenith Radio Corporation|Television cathode ray tube having a voltage divider providing temperature-invariant voltage and associated method|
    US4281270A|1979-06-25|1981-07-28|Rca Corporation|Precoated resistive lens structure for electron gun and method of fabrication|US4345185A|1980-06-10|1982-08-17|Sony Corporation|Cathode ray tube apparatus|
    US4514661A|1982-09-27|1985-04-30|Rca Corporation|Arc-suppression means for an electron gun having a split electrode|
    US4531075A|1982-09-27|1985-07-23|Rca Corporation|Electron gun having arc suppression means|
    JPH0752630B2|1985-12-09|1995-06-05|株式会社東芝|Electron gun structure|
    JP2609627B2|1987-09-18|1997-05-14|株式会社日立製作所|Cathode ray tube|
    JPH09320485A|1996-03-26|1997-12-12|Sony Corp|Color cathode-ray tube|
    JPH10255682A|1997-03-14|1998-09-25|Sony Corp|Cathode-ray tube|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/070,645|US4243911A|1979-08-28|1979-08-28|Resistive lens electron gun with compound linear voltage profile|
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