JPH0125409Y2 - - Google Patents
Info
- Publication number
- JPH0125409Y2 JPH0125409Y2 JP1979032620U JP3262079U JPH0125409Y2 JP H0125409 Y2 JPH0125409 Y2 JP H0125409Y2 JP 1979032620 U JP1979032620 U JP 1979032620U JP 3262079 U JP3262079 U JP 3262079U JP H0125409 Y2 JPH0125409 Y2 JP H0125409Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- electron gun
- cathode ray
- ray tube
- concentrated magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000011521 glass Substances 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000010894 electron beam technology Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は陰極線管の電子銃電極構体、特に弾性
支持子を電子銃電極構体の電子ビーム射出側に設
置された集中磁極に容易に高精度に取付けられる
陰極線管電子銃電極構体に関するものである。[Detailed description of the invention] The present invention provides an electron gun electrode structure for a cathode ray tube, in particular, a cathode ray tube electron gun in which an elastic supporter can be easily and precisely attached to a concentrated magnetic pole installed on the electron beam exit side of the electron gun electrode structure. This invention relates to an electrode structure.
一般に陰極線管では高品質の画像を受像再現す
るためには電子銃電極構体の中心軸と陰極線管の
中心軸とを精密に一致させる必要がある。特にカ
ラー陰極線管に於ては前述の二本の軸が互いにず
れていると、電子銃から発射された複数の電子ビ
ームが陰極線管硝子頚部外に取付けられた電磁偏
向装置で偏向されて形成される複数の色彩画像を
螢光面近くに配置されたシヤドウマスク面上で空
間的に正しく重ね合せる色集中（コンバージエン
ス）操作が不完全となり、再生画像は色ずれを起
こす。或いは電子ビームが所定の色の螢光面螢光
体素子に正確に射突せず、他色を発色させ、色純
度不良となつたり、電子ビームが螢光面に作る再
生画像画面の幾何学的中心は螢光面の幾何学的中
心と一致せず、一方へ片寄り受像再生画像品質を
劣化させる。従がつて電子銃電極構体を陰極線管
硝子外囲器頚部内に保持する弾性支持子は電子銃
電極構体の電子ビーム射出側に設置された集中磁
極の正確な所定位置に取付ける必要がある。 Generally, in a cathode ray tube, in order to receive and reproduce high-quality images, it is necessary to precisely align the central axis of the electron gun electrode structure with the central axis of the cathode ray tube. Particularly in a color cathode ray tube, if the two axes mentioned above are offset from each other, multiple electron beams emitted from the electron gun are deflected by an electromagnetic deflection device installed outside the glass neck of the cathode ray tube. The color convergence operation that spatially correctly superimposes a plurality of color images on a shadow mask surface placed near the fluorescent surface becomes incomplete, and the reproduced image has color shift. Alternatively, the electron beam may not accurately strike the fluorescent surface phosphor element of a predetermined color, producing other colors, resulting in poor color purity, or the geometry of the reproduced image screen created by the electron beam on the fluorescent surface. The center of the target does not coincide with the geometric center of the fluorescent surface, and is shifted to one side, deteriorating the quality of the received and reproduced image. Therefore, the elastic support for holding the electron gun electrode assembly within the neck of the cathode ray tube glass envelope must be attached to an accurate predetermined position of the concentrated magnetic pole installed on the electron beam exit side of the electron gun electrode assembly.
先ず、従来用いられているインライン型カラー
陰極線管について陰極線管硝子外囲器頚部への電
子銃電極構体の保持機構を第１図、第２図により
詳細に説明する。電子銃電極構体１の電子ビーム
射出側の最終電極である一直線上に三の電子ビー
ム透過孔２Ｃが穿設された底面を持つ閉塞筒状体
G4電極２の筒側部２Ｂと連続して垂直に形成さ
れた鍔状縁２Ａへ一直線上に三つの電子ビーム透
過孔を底面に穿設された有底円筒状の集中磁極３
が取付けられ、集中磁極３の筒側部の所定位置に
取付けられた複数個の弾性支持子４により陰極線
管硝子外囲器頚部５内壁に電子銃電極構体１の中
心軸と陰極線管硝子外囲器の中心軸７とが互に一
致するように保持される。ここに従来はG4電極
２の鍔状縁２Ａの最大径は集中磁極３の底面最大
径以下とされ、鍔状縁２Ａは集中磁極３の筒側部
よりはみ出さないように設計されている。一方、
弾性支持４は陰極線管硝子外囲器漏斗状部に配置
された陽極端子（図示しない）に接続されて塗布
された内部導電被膜６に接触する接触部４Ａから
集中磁極３を介して電子銃電極構体１の最終電極
であるG4電極２に高電圧の陽極電圧を供給して
いる。 First, a mechanism for holding an electron gun electrode assembly to the neck of a cathode ray tube glass envelope in a conventional in-line color cathode ray tube will be explained in detail with reference to FIGS. 1 and 2. A closed cylindrical body having a bottom surface with three electron beam transmission holes 2C drilled in a straight line, which is the final electrode on the electron beam exit side of the electron gun electrode structure 1.
A concentrated magnetic pole 3 in the shape of a cylindrical cylinder with a bottom, with three electron beam transmission holes bored in the bottom in a straight line to the flanged edge 2A formed perpendicularly to the cylindrical side part 2B of the G4 electrode 2.
is attached to the inner wall of the neck 5 of the cathode ray tube glass envelope by a plurality of elastic supports 4 attached to predetermined positions on the cylinder side of the concentrated magnetic pole 3, and the central axis of the electron gun electrode assembly 1 and the cathode ray tube glass envelope are attached to the inner wall of the neck 5 of the cathode ray tube glass envelope. The containers are held so that their central axes 7 are aligned with each other. Conventionally, the maximum diameter of the flanged edge 2A of the G4 electrode 2 is set to be less than the maximum diameter of the bottom surface of the concentrated magnetic pole 3, and the flanged edge 2A is designed so as not to protrude from the cylindrical side of the concentrated magnetic pole 3. on the other hand,
The elastic support 4 connects to the electron gun electrode via the concentrated magnetic pole 3 from a contact portion 4A that contacts an internal conductive coating 6 that is connected to an anode terminal (not shown) disposed in the funnel-shaped portion of the cathode ray tube glass envelope. A high anode voltage is supplied to the G4 electrode 2, which is the final electrode of the structure 1.
然るに複数の弾性支持子４の接触部４Ａの内部
導電被膜６への複数の接点４６が陰極線管硝子外
囲器の中心軸７に垂直な同一平面内にないと電子
銃電極構体１の中心軸は陰極線管硝子外囲器の中
心軸と一致せず、これに傾いて保持され、前述し
た様にカラー陰極線管の動作特性を著しく劣化さ
せることになる。従つて、弾性支持子４の取付け
作業では弾性支持子４の集中磁極３に対する所定
位置を正しく決定するように細心の注意を要し
た。このため、従来は弾性支持子４の取付ける際
は、弾性支持子４の位置決め治具を集中磁極３に
挿入して取付位置を決定し、この治具を挿入した
まま複数個の弾性支持子４の取付け部４Ｂを溶接
等の手段で集中磁極３の筒側部に固定した後、治
具を抜取る方法が行われていた。しかし、この方
法では弾性支持子４を取付ける際に位置決め治具
を必要とし、更に治具内に確実に弾性支持子４を
保持しながら溶接作業をする必要があり、作業性
が極めて悪かつた。或いは治具のガタにより応々
にして取付られた複数の弾性支持子４の内部導電
被膜６への接触部４Ａの接点４６の集中磁極３底
面に対する高さのばらつきを生じ、従がつて複数
の接点４６は陰極線管硝子外囲器の中心軸７に垂
直な同一平面内に含まれず、電子銃電極構体１の
中心軸と陰極線管硝子外囲器の中心軸が一致しな
いで傾いて保持される等の種々の欠点を持つてい
た。 However, if the plurality of contact points 46 of the contact portions 4A of the plurality of elastic supports 4 to the internal conductive coating 6 are not in the same plane perpendicular to the central axis 7 of the cathode ray tube glass envelope, the central axis of the electron gun electrode assembly 1 does not coincide with the central axis of the cathode ray tube glass envelope, and is held at an angle to this, which significantly deteriorates the operating characteristics of the color cathode ray tube, as described above. Therefore, when attaching the elastic support 4, great care was required to correctly determine the predetermined position of the elastic support 4 with respect to the concentrated magnetic pole 3. For this reason, conventionally, when attaching the elastic supports 4, a positioning jig for the elastic supports 4 is inserted into the concentrated magnetic pole 3 to determine the mounting position. A method has been used in which the mounting portion 4B is fixed to the cylindrical side portion of the concentrated magnetic pole 3 by means such as welding, and then the jig is removed. However, this method requires a positioning jig when installing the elastic support 4, and it is also necessary to carry out welding work while firmly holding the elastic support 4 within the jig, resulting in extremely poor workability. . Alternatively, due to looseness in the jig, the height of the contact point 46 of the contact portion 4A of the plurality of elastic supports 4 attached to the internal conductive coating 6 may vary with respect to the bottom surface of the concentrated magnetic pole 3, and as a result, a plurality of The contact point 46 is not included in the same plane perpendicular to the central axis 7 of the cathode ray tube glass envelope, and is held tilted so that the central axis of the electron gun electrode assembly 1 and the central axis of the cathode ray tube glass envelope do not coincide. It had various drawbacks such as.
本考案の目的は、上述の欠点を除去し、複数の
弾性支持子を集中磁極筒側部に精密に、且つ容易
に取付けることが可能な陰極線管電子銃電極構体
を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a cathode ray tube electron gun electrode structure which eliminates the above-mentioned drawbacks and allows a plurality of elastic supports to be precisely and easily attached to the side of a concentrated magnetic pole tube.
本考案は、電子銃電極構体を陰極線管硝子外囲
器頚部内壁に保持すると共に、硝子頚部内壁に塗
布された内部導電被膜から高電圧の陽極電圧を受
ける弾性支持子を取付けた有底円筒状の集中磁極
を有する陰極線管電子銃電極構体に於て、電子銃
電極構体の電子ビーム射出側最終電極である複数
の電子ビーム透過孔が穿設された底面を持つ閉塞
筒状体電極の筒側部と連続して垂直に形成された
鍔状縁に集中磁極底面を取付け、鍔状縁の少くと
も一部分が集中磁極底面より弾性支持子の板厚程
度突出するように鍔状縁の径を集中磁極底面の径
より相対的に大きく設定したことを特徴とする。 The present invention consists of a bottomed cylindrical structure that holds the electron gun electrode structure on the inner wall of the neck of the glass envelope of the cathode ray tube, and has an elastic support that receives a high anode voltage from an internal conductive coating applied to the inner wall of the glass neck. In a cathode ray tube electron gun electrode assembly having a concentrated magnetic pole, the tube side of the closed cylindrical electrode, which is the final electrode on the electron beam exit side of the electron gun electrode assembly, has a bottom surface with a plurality of electron beam transmission holes. The bottom surface of the concentrated magnetic pole is attached to the flange-shaped edge formed perpendicularly to the part, and the diameter of the flange-shaped edge is concentrated so that at least a part of the flange-shaped edge protrudes from the bottom surface of the concentrated magnetic pole by the thickness of the elastic support. It is characterized by being set relatively larger than the diameter of the bottom surface of the magnetic pole.
以下、図面に従がつて本考案を詳細に説明す
る。 Hereinafter, the present invention will be explained in detail with reference to the drawings.
第３図は本考案に基づくカラー陰極線管電子銃
電極構体の集中磁極３０に弾性支持子４０を取付
けた要部正面図であり、第４図はこれに用いられ
る電子銃電極構体の最終電極である閉塞筒状体
G4電極２０の斜視図である。第３図に示す様に
閉塞筒状体電極２０の鍔状縁２０Ａの半径を弾性
支持子４０の板厚程度に集中磁極３０の半径より
大きくし、或いは逆に集中磁極３０の半径を鍔状
縁２０Ａの半径より弾性支持子４０の板厚程度小
さく設定する。弾性支持子４０を取付るには、そ
の取付部４０Ｂの下端を集中磁極３０の底面より
はみ出たG4電極２０の鍔状縁２０Ａに突き当て、
治具は集中磁極３０の筒側部周囲に対する所定位
置だけ決定し、溶接固定する。弾性支持子４０は
接触部４０Ａの内部導電被膜６に対する接点の集
中磁極３０の底面に対する高さが従来と同一にな
るように取付部４０Ｂの下端を延長し、有効弾性
長を変更することなく硝子頚部５の内壁への圧接
力を同一に保つようにしてある。 FIG. 3 is a front view of the main part of the color cathode ray tube electron gun electrode assembly based on the present invention, with an elastic support 40 attached to the concentrated magnetic pole 30, and FIG. 4 is a front view of the final electrode of the electron gun electrode assembly used therein. a certain occluded cylinder
FIG. 2 is a perspective view of the G4 electrode 20. FIG. As shown in FIG. 3, the radius of the flange-shaped edge 20A of the closed cylindrical electrode 20 is made larger than the radius of the concentrated magnetic pole 30 by the thickness of the elastic support 40, or conversely, the radius of the concentrated magnetic pole 30 is made flange-shaped. The radius is set to be smaller than the radius of the edge 20A by about the thickness of the elastic supporter 40. To attach the elastic support 40, the lower end of the attachment part 40B is butted against the brim-shaped edge 20A of the G4 electrode 20 that protrudes from the bottom surface of the concentrated magnetic pole 30,
The jig determines only a predetermined position around the tube side of the concentrated magnetic pole 30 and fixes it by welding. The elastic support 40 extends the lower end of the mounting portion 40B so that the height of the contact point of the contact portion 40A to the internal conductive coating 6 with respect to the bottom surface of the concentrated magnetic pole 30 is the same as in the conventional case, and the lower end of the mounting portion 40B is extended so that the height of the contact point with respect to the internal conductive coating 6 of the contact portion 40A is the same as in the conventional case. The pressure applied to the inner wall of the neck 5 is kept constant.
本考案の実施例によれば弾性支持子４０の取付
部４０ＢをG4電極２０の鍔状縁２０Ａに突き当
てるだけで容易に複数の弾性支持子４０の接触部
４０Ａの内部導電被膜６の内壁への接点は一意的
に陰極線管硝子外囲器の中心軸に垂直な一平面内
に全て含まれ、電子銃電極構体の中心軸と陰極線
管硝子外囲器の中心軸とは完全に一致することに
なり、弾性支持子４０の取付け作業は極めて能率
的となり、受像画面画質は著しく改善される。 According to the embodiment of the present invention, simply by abutting the attachment portion 40B of the elastic support 40 against the flanged edge 20A of the G4 electrode 20, the contact portions 40A of the plurality of elastic supports 40 can be easily attached to the inner wall of the internal conductive coating 6. All of the contacts must be uniquely contained within one plane perpendicular to the central axis of the cathode ray tube glass envelope, and the central axis of the electron gun electrode assembly and the central axis of the cathode ray tube glass envelope must coincide completely. Therefore, the work of attaching the elastic support member 40 becomes extremely efficient, and the image quality of the image receiving screen is significantly improved.
第５図は本考案の他の実施例を示し、電子銃電
極構体最終電極である閉塞筒状体電極G4電極２
１の上面図であり、弾性支持子４０の位置出し突
出部２１Ｄが鍔状縁２１Ａの一部に複数個設けら
れている。位置出し突出部２１ＤはG4電極２１
が鍔状縁２１Ａで集中磁極３０の底面に取付けら
れた時、集中磁極３０の底面より少くとも弾性支
持子４０の板厚程度はみ出すように集中磁極３０
の底面の直径より相対的に大きくなるように、且
つその幅は弾性支持子４０の取付部４０Ｂの幅と
一致するように設定されている。 FIG. 5 shows another embodiment of the present invention, in which the closed cylindrical body electrode G4 electrode 2 is the final electrode of the electron gun electrode assembly.
1, in which a plurality of positioning protrusions 21D of the elastic supports 40 are provided on a part of the brim-like edge 21A. The positioning protrusion 21D is the G4 electrode 21
When attached to the bottom surface of the concentrated magnetic pole 30 with the flanged edge 21A, the concentrated magnetic pole 30 protrudes from the bottom surface of the concentrated magnetic pole 30 by at least the thickness of the elastic support 40.
The width is set to be relatively larger than the diameter of the bottom surface of the elastic support member 40, and its width is set to match the width of the attachment portion 40B of the elastic support member 40.
本実施例によれば弾性支持子４０を集中磁極３
０に取付けるにはG4電極２１の位置出し突出部
２１Ｄにその取付部４０Ｂを突き当て、横幅を合
わすだけで、位置出し治具を一切用いることなく
弾性支持子４０の集中磁極３０に対する下端位置
及び筒側部周囲位置が同時に容易に、且つ一意的
に決定出来るため、取付作業は極めて簡単に、能
率的となる。 According to this embodiment, the elastic supporter 40 is connected to the concentrated magnetic pole 3
0, simply place the mounting part 40B against the positioning protrusion 21D of the G4 electrode 21 and match the width. Since the circumferential position of the cylinder side portion can be simultaneously and easily and uniquely determined, the installation work becomes extremely simple and efficient.
上述の説明では便宜的に一体化電極を備えたイ
ンライン型電子銃電極構体について述べたが、本
願は同様にデルタ型電子銃電極構体にも適用出来
ることはいうまでもない。 In the above description, an in-line type electron gun electrode structure including an integrated electrode has been described for convenience, but it goes without saying that the present application can be similarly applied to a delta type electron gun electrode structure.
第１図は従来のインライン型電子銃電極構体が
陰極線管硝子外囲器頚部に保持された状態を示す
断面図、第２図はこれに用いられている閉塞筒状
体Ｇ４電極を示す斜視図、第３図は本考案に基づ
いて集中磁極に弾性支持子を取付けた状態を示す
要部正面図、第４図はこれに用いられる閉塞筒状
体G4電極の斜視図、第５図は本考案の他の実施
例を示す閉塞筒状体G4電極の上面図。
１……インライン型カラー電子銃電極構体、
２，２０，２１……閉塞筒状体G4電極、２Ａ，
２０Ａ，２１Ａ……鍔状縁、３，３０……集中磁
極、４，４０……弾性支持子、４Ａ，４０Ａ……
接触部、４Ｂ，４０Ｂ……取付部、５……陰極線
管硝子外囲器頚部、２１Ｄ……位置出し突出部。
Fig. 1 is a sectional view showing a conventional in-line electron gun electrode assembly held in the neck of a cathode ray tube glass envelope, and Fig. 2 is a perspective view showing a closed cylindrical G4 electrode used in this. , Fig. 3 is a front view of the main part showing the state in which the elastic support is attached to the concentrated magnetic pole based on the present invention, Fig. 4 is a perspective view of the closed cylindrical G4 electrode used in this, and Fig. 5 is the main part of the main part. FIG. 7 is a top view of a closed cylindrical body G4 electrode showing another embodiment of the invention. 1... In-line color electron gun electrode structure,
2, 20, 21...Occluded cylindrical body G4 electrode, 2A,
20A, 21A... Flange-shaped edge, 3, 30... Concentrated magnetic pole, 4, 40... Elastic supporter, 4A, 40A...
Contact portion, 4B, 40B... Attachment portion, 5... Neck of cathode ray tube glass envelope, 21D... Positioning protrusion.
Claims (1)
に保持すると共に、硝子頚部内壁に塗布された内
部導電被膜から高電圧の陽極電圧を受ける弾性支
持子を取付けた有底円筒状の集中磁極を有する陰
極線管電子銃電極構体において、前記集中磁極が
取付られる閉塞筒状体電極の鍔状縁の少くとも一
部分が前記弾性支持子の板厚程度集中磁極底面よ
り突出していることを特徴とする陰極線管電子銃
電極構体。 The electron gun electrode structure is held on the inner wall of the neck of the glass envelope of the cathode ray tube, and a concentrated magnetic pole in the shape of a bottomed cylinder is attached with an elastic support that receives a high anode voltage from an internal conductive coating applied to the inner wall of the glass neck. In the cathode ray tube electron gun electrode assembly, at least a part of the brim-like edge of the closed cylindrical electrode to which the concentrated magnetic pole is attached protrudes from the bottom surface of the concentrated magnetic pole by the thickness of the elastic support. Tube electron gun electrode structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979032620U JPH0125409Y2 (en) | 1979-03-14 | 1979-03-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979032620U JPH0125409Y2 (en) | 1979-03-14 | 1979-03-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55132852U JPS55132852U (en) | 1980-09-20 |
| JPH0125409Y2 true JPH0125409Y2 (en) | 1989-07-31 |
Family
ID=28886455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979032620U Expired JPH0125409Y2 (en) | 1979-03-14 | 1979-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0125409Y2 (en) |
-
1979
- 1979-03-14 JP JP1979032620U patent/JPH0125409Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55132852U (en) | 1980-09-20 |
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