• 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 present invention provides an improvement in a color picture tube having an inline electron gun for generating and directing three inline electron beams, comprising a center beam and two outer beams, along initially coplanar paths toward a screen of the tube. The beams pass through a deflection zone adapted to have two orthogonal magnetic deflection fields established therein. A first of the fields causes deflection of the beams perpendicular to the inline direction of the beams, and a second of the fields causes deflection parallel to the inline direction of the beams. The improvement comprises the electron gun including four magnetically permeable members located near the exit of the electron gun in a fringe portion of said deflection zone. A first and a second of the members are located between the center beam path and a first and second outer beam path, respectively. A third and a fourth of said members are spaced from the first and second members, respectively, and are located on the outside of the respective outer beam paths. The first and third members and the second and fourth members have means for bypassing a part of the fringe portion of the first of the two orthogonal magnetic deflection fields, at the members, around the respective outer beam paths, while allowing another part of the same fringe portion, at the members, to pass through the respective outer beam paths. The first and second members have means for bypassing a part of the fringe portion of the first of the two orthogonal deflection fields, at the members, around the center beam path, while allowing another part of the same fringe portion, at the members, to pass through the center beam path.
    公开号:SU1429949A3
    申请号:SU843821201
    申请日:1984-12-10
    公开日:1988-10-07
    发明作者:Чен Синг-Яо；Генри Хьюс Ричард
    申请人:Рка Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    9at.t
    The invention relates to a color television tube provided with an improved sequential electron gun, in particular to the improvement of a gun, which allows to obtain equal raster dimensions.
    The purpose of the invention is to improve the image quality by providing correction for various coma 1-1 conditions.
    FIG. 1 shows a color television tube with a shadow mask, top view (partial axial section) in FIG. 2 - electron gun, partial axial section; on fig.Z - ts same, side view; in fig. 4 and 5 are elements of the correction of a coma in an electron gun with flow lines of vertical and horizontal deviation of the xy fields, respectively, viewed from above.
    The color television tube 1 .. g has a glass flask containing a rectangular flat panel 2, as well as a cylindrical neck 3, connected by means of a rectangular socket 4. The panel contains screen glass 5, side wall 6, which is hydrated to the socket. A three-color luminaire screen 7 is located on the inner surface of glass 5. Screen 7 is a linear screen with illuminated lines that run perpendicularly to the sweep of the high-frequency tube lines (normally relative to the plane of FIG. 1). A perforated color selector electrode or shadow mask 8 is mounted removably by conventional means in a given spatial position relative to screen 7. A three-beam electron gun 9 (shown schematically with a dotted line, figure 1) is installed centrally in the neck 3 in order to generate and the directions of the three electoHHbix rays 10 along the initially coplanar descent of the trajectories through the mask 8 onto the screen 7.
     The tube is intended to be used with an external magnetic deflecting system 11 of the type of self-sensing system, shown to surrounding neck 3 and socket 4 in the region of their joint. In working condition, system 11 acts on all three beams 10 by means of vertical and horizontal magnetic fluxes, which cause the rays to develop, respectively, horizontally and vertically along a rectangular raster on the screen.
    Q
    50
    n.
    0 5
    five
    not 7. The initial deflection plane (with zero deflection) is indicated by the PP line almost in the middle of system 11. Due to the non-alignment fields, the tube deflection zone passes axially from the deflecting system 11 into the electron gun region 9. For simplicity, the curvature is rejected paths of the rays in the zone of deflection is not shown.
    The gun 9 contains two glass supporting rods 12 on which different electrodes are mounted. These electrodes include three equally spaced, coplanarly arranged electronic projectors consisting of a cathode 13 (one for each projector), a control grid electrode 14, an electrode 15 the electron grid, the first 16 and second 17 accelerating and focusing electrodes, arranged along the glass rods 12 in the indicated order. Each of the electrodes 14-17 has three holes arranged in series in a line through which three coplanar electron beams can pass. The main electrostatic focusing lens in the gun 9 is formed between electrode 16 and electrode 17. Electrode 1b is made with four cap elements 18-21. The open ends of the elements 18 and 19 are attached to each other and the open ends of the elements 20 and 21 are also attached to each other. Close the end of the third element 20 is attached to the closed end of the second element 19. Although electrode 16 also has a four-element structure, it can be made of any number of elements, including a single element of the same length. The electrode 17 is also made in the form of a glass, but open its end closed with a perforated plate 22. The electrode 23 in the form of a glass is attached to the plate 22 at the exit of the gun 9.
    The front closed ends of the electrodes 16 and 17 are equipped with large grooves
    24 and 25 respectively. Notches 24 and
    25 are completed behind the part of the closed end of the electrode 16 containing three holes 26-28 (not shown) and form part of the closed end of the electrode 17 containing three holes 29-31 (holes 29 and 31 not shown), the rest of these closed ends of the electrodes 16 and 17 form soot31
    Edges 32 and 33, which run circumferentially around recesses 24 and 25. Edges 32 and 33 are the closest parts of both electrodes 16 and 17.
    On the bottom of the electrode 23 there are two elements of a magnetically permeable material, each of which consists of two parts 34 and 35, 36 and 37 for the correction of coma. The bottom of the electrode 23 contains three holes 38-40 through which electron beams pass
    Elements of a magnetically permeable material are located on different sides from the central opening, from the side of which rectangular recesses 41 and 42 are formed in them, forming protrusions 43-46 in the elements. The components of each of these elements parts 34-37 are located on the outer and inner sides of the side holes 38 and 40, coincide with them along the contour and are separated by gaps 47 and 48, oriented perpendicular to the plane of the electronic projectors and located in the area of the side holes 38 and 40 ,




    The bottom of the electrode 23 with the magnetically permeable elements is located in the non-neutral part of the deflection zone of the color television tube 1. During operation, the deflecting system 11 creates two orthogonal deflection magnetic fields in the deflection zone of the tube. These floors are known primarily as vertical and horizontal deflection fields, even when the front side of the tube can be oriented and not vertically. The vertical deflecting field has flow lines that run horizontally, and it causes electron beam deflection perpendicular to the flow lines. In the electron gun 9, the vertical deflection is perpendicular to the unidirectional electron beams, and the flow lines that create the vertical deflection are essentially parallel to the unidirectional electron beams. The horizontal deflection field has power lines that run vertically, and the electron beams deviate perpendicularly to the power lines. In the electron gun 9, the horizontal deflection is parallel to the unidirectional electron beams, and the flow lines that are horizontal
    the deviation is perpendicular to unidirectional electron beams.
    The effect exerted by the magnetic-permeable elements — W} on-the-off part 34-37, on the magnetic lines of the stream 49 of the non-aligned part of the vertical deflection field of the elements, is shown in FIG. 4, Part 3 works in conjunction with part 35 "and part 37 works in conjunction with part 36 to shunt part of the field of vertical deflection around both paths of external rays, in

    While the other part of this non-aligned part passes through both external paths of the rays. B- JiH4HHa part of the non-bridging, which is -: -. - around the TpaeK - opHH intrinsic can be changed by modular coma correction and magnetically permeable coma elements to increase the reduction of the gap between their part of yyyy: The inner parts 35 and 36 of the gluten are working also in ji: o Step 1: Bite each other, shunt the proportion of the part of the non-mixing floor vertical deflection of the central beam TpaeiCTopHK, while the circle of the same non-matching part passes through the central beam trajectory O, the Great uncountable 1; Trajectory: .. a beam can be measured Ens s,:; by changing the lengths of the protrusions 43 - L, When u & protrusions, the shortest health is reduced to parts of 35 and 36 magnetically permeable elements and due to this, the inconsistent value is shaken: the part that is shunted around the trajectory of the central beam. Similarly, reducing the length of the legs leads to an increase in the shortest gap between the legs and a decrease in the magnitude of the g / untreated non-aligned part
    The impact of the agglomerate-permeable elements of the correction coma on the magnetic flow lines 50 of the unadjusted part of the horizontal deflection field of the elements is shown in FIG. 5. Parts 34-38 of the malicious shunt part of the inconsistent part around the external paths, however, due to gaps between the elements - the other part of the unplaced lobe passes through the trajectory of the external rays, And again, when the shape changes, the corresponding 1 x elemental
    five
    By adjusting the clearance between the coma created by the element, parts 35 and 36 shunt a part of the uncompleted fraction of the horizontal floor from the elements around the tract, the central beam torii, and their separation is possible; parts of the unplaced lobe through the trajectory of the central beam, and again the magnitude of the uncompacted shunt lobe can change with a change in X1; the length of the legs of the protrusion, which allows you to interrupt more or fewer Nij .potoka
    : Although the image of an inconsistent part of the deflecting field (Figs 4 and 5) is shown in two dimensions, it is necessary to understand what they actually have in three dimensions in three dimensions and the elements of the KOf ib correction affect the three-dimensional field in a similar way.


    When using new elements of correction, it is possible to make corrective but many modes of coma, Similar to correction is possible with appropriate form and gaps between the element, without changing the thickness of the material of the element. For example, if it is required to increase the horizontal deviation of the outer rays relatively. The central beam can increase the gaps between the hours and 34 and 35 and 36 and 37. Increasing these gaps, however, Tccr leads to an increase in the vertical direction of the external rays relative to the central beam. Therefore, the gaps between parts 35 and 36 must be increased to compensate for this change. Such an increase affects the horizontal deviation of the central beam. Due to these relative effects, M - DY correspond to the design of the elements of the correction coma that satisfies any particular problem of coma, the implementation of various structural parameters of the elements is required. Besides.
    Because of the partial; 1G5 N scaling of unbiased portions of the deflecting fields on the KoppeKiiviH coma elements, relatively simple coma can be corrected by using thicker correction elements relative to Pz1x in many limestone earlier coma correction elements.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A color television tube containing a three-beam .-. Electron gun with a coplanar electron probe light and a magnetic deflector system for deflecting electron beams in two mutually orthogonal planes, one of which is perpendicular to the plane of the plane electronic spotlights, with the electron puck at the exit of the abschene using an electrode in the form of a glass, at the bottom of which, facing the deflecting system and located in an unbiased area bending, performed trr; the holes with the center 5I on the same straight line for the passage of electronic beams and two elements made of magnetically permeable material, skg-metric relative to the plane with lusterkk e-gun and located on opposite sides of the central hole j and casing.m of these elements located on the outer and inner sides of the holes, where their contours coincide, and on the side of the central hole I have in the elements a hollow about one of the holes with the quality of the image by providing a box The different conditions of the coma, each element is made of two parts, separated by a gap oriented perpendicular to the plane of the electrically-designed spotlight and located in the area of the side opening, and the notches are rectangular.
    2J
    / J
    srig.Z
    J5
    ZV
    Js
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1429949A3|1988-10-07|Colour picture tube
    CA1043845A|1978-12-05|Cathode ray tube with compensation for beam landing spot distortion due to wide-angle beam deflection
    CS232730B2|1985-02-14|Colour picture tube with electron guns type in line
    US4851741A|1989-07-25|Electron gun for color picture tube
    KR0131870B1|1998-04-15|Electron gun and cathode-ray tube
    US6400105B2|2002-06-04|Color cathode-ray tube having electrostatic quadrupole lens exhibiting different intensities for electron beams
    SU1232132A3|1986-05-15|Colour picture tube
    US5032760A|1991-07-16|Dynamic focus electron gun
    US4600858A|1986-07-15|Color cathode ray tube apparatus to modify deflection magnetic fields
    RU2097939C1|1997-11-27|Color cathode-ray tube
    JPS5859534A|1983-04-08|In-line-type color picture tube
    US6046537A|2000-04-04|Color picture tube having reduced picture distortion
    RU2093919C1|1997-10-20|Process of manufacture of electron gun
    RU2114483C1|1998-06-27|Coplanar electron gun
    US4682073A|1987-07-21|Electron optics for the electron beam generating system of a color picture tube
    JPH06236736A|1994-08-23|Electron gun for color cathode-ray tube
    EP1361596B1|2005-06-08|In-line type electron gun and color picture tube apparatus using the same
    KR950006338B1|1995-06-14|Color cathode ray tube
    KR960000530B1|1996-01-08|Color picture tube
    KR880001085B1|1988-06-22|An electron gun
    KR910009635B1|1991-11-23|Dynamic focus electron gun
    KR100245176B1|2000-02-15|Inline electron gun having improved beam forming region
    US5256933A|1993-10-26|Electron gun for a cathode ray tube
    KR100355446B1|2002-10-11|Electron gun for Color cathode ray tube
    KR100334068B1|2002-04-26|Electron gun for color cathod rey tube
    同族专利:
    公开号 | 公开日
    IT8424007D0|1984-12-12|
    US4556819A|1985-12-03|
    CS258121B2|1988-07-15|
    CA1213303A|1986-10-28|
    PL148159B1|1989-09-30|
    CS936084A2|1987-12-17|
    HK26093A|1993-03-26|
    FR2556499A1|1985-06-14|
    GB2151396B|1987-07-29|
    KR920007183B1|1992-08-27|
    IT1177387B|1987-08-26|
    GB8430935D0|1985-01-16|
    DE3445518C2|1987-05-07|
    JPH046254B2|1992-02-05|
    PL250904A1|1985-09-10|
    GB2151396A|1985-07-17|
    FR2556499B1|1992-09-04|
    KR850004343A|1985-07-11|
    DE3445518A1|1985-06-20|
    DD232387A5|1986-01-22|
    JPS60146430A|1985-08-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US29895A|1860-09-04|Improvement in mowing-machines |
    NL278119A|1961-05-08|
    BE625864A|1961-12-07|
    JPS4833331B1|1968-02-05|1973-10-13|
    US3534208A|1968-05-24|1970-10-13|Gen Electric|Cathode ray tube having three in-line guns and center beam convergence shield modifying center beam raster size|
    JPS4833529B1|1968-12-30|1973-10-15|
    JPS5126208B1|1971-05-18|1976-08-05|
    US3873879A|1972-01-14|1975-03-25|Rca Corp|In-line electron gun|
    JPS4967519A|1972-11-02|1974-07-01|
    US4142131A|1975-11-12|1979-02-27|Hitachi, Ltd.|Color picture tube|
    GB1569829A|1977-01-17|1980-06-18|Hitachi Ltd|Colour picture tube|
    NL7802129A|1978-02-27|1979-08-29|Philips Nv|DEVICE FOR DISPLAYING COLORED IMAGES.|
    US4225804A|1978-04-22|1980-09-30|Gte Sylvania N.V.|Cathode ray tube coma correction device|
    US4396862A|1978-05-01|1983-08-02|Rca Corporation|Color picture tube with means for affecting magnetic deflection fields in electron gun area|
    US4370592B1|1980-10-29|1984-08-28|
    US4388552A|1981-07-10|1983-06-14|Rca Corporation|Color picture tube having an improved expanded focus lens type inline electron gun|KR900000351B1|1984-05-10|1990-01-25|가부시끼가이샤 도시바|Color cathode ray tube|
    FR2585878B1|1985-07-30|1988-12-09|Videocolor|FIELD CONFORMER FOR COLOR TELEVISION TUBE WITH THREE BEAMS IN LINE|
    NL8601091A|1986-04-29|1987-11-16|Philips Nv|COLOR IMAGE TUBE WITH COMA CORRECTION.|
    US4730144A|1986-08-27|1988-03-08|Rca Corporation|Color picture tube having inline electron gun with coma correction members|
    JP2661024B2|1986-12-27|1997-10-08|ソニー株式会社|Cathode ray tube|
    CA1311793C|1987-08-28|1992-12-22|Rca Licensing Corporation|Video apparatus having self-converging pattern-corrected deflection yoke|
    US4911668A|1988-10-11|1990-03-27|Rca Licensing Corporation|method of attaching coma correction members to an inline electron gun|
    JPH08315751A|1995-05-12|1996-11-29|Hitachi Ltd|Deflection aberration correcting method of cathode-ray tube and cathode-ray tube and image display device|
    US5777429A|1996-02-22|1998-07-07|Sony Corporation|Device for correction of negative differential coma error in cathode ray tubes|
    TW417132B|1996-02-27|2001-01-01|Hitachi Ltd|CRT, deflection-defocusing correcting member therefor, a method of manufacturing same member, and an image display system including same CRT|
    KR100708630B1|2000-03-14|2007-04-18|삼성에스디아이 주식회사|Electron gun and color cathode ray tube utilizing the same|
    AU2003265085A1|2002-10-07|2004-04-23|Koninklijke Philips Electronics N.V.|Cathode ray tube with improved image quality|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/560,794|US4556819A|1983-12-13|1983-12-13|Color picture tube having inline electron gun with coma correction members|
    [返回顶部]