JPH06162957A - Electron gun - Google Patents
Electron gunInfo
- Publication number
- JPH06162957A JPH06162957A JP31164292A JP31164292A JPH06162957A JP H06162957 A JPH06162957 A JP H06162957A JP 31164292 A JP31164292 A JP 31164292A JP 31164292 A JP31164292 A JP 31164292A JP H06162957 A JPH06162957 A JP H06162957A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electron gun
- electrodes
- ribbons
- ray tube
- 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.)
- Pending
Links
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明はカラーテレビ用あるい
はディスプレイモニター用陰極線管の電子銃の組立精度
向上に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improving the assembly accuracy of an electron gun for a cathode ray tube for a color television or a display monitor.
【0002】[0002]
【従来の技術】カラーテレビ用陰極線管の電子銃は一般
に非磁性ステンレス鋼からなる絞りプレス部品、板状の
打ち抜きプレス部品が、精度良く配列されている。図4
に代表的な電子銃の電極構成図を示す。電子銃本体1は
G1 電極11,G2 電極12,G3 電極13,G4 電極
14及びコンタクター16が取り付けられたシールドカ
ップ15からなり、外部から電圧を印加するステム2に
接続・保持されている(具体接続図は省略してある)。2. Description of the Related Art In an electron gun for a cathode ray tube for a color television, a drawing press part and a plate-like punching press part, which are generally made of non-magnetic stainless steel, are accurately arranged. Figure 4
Fig. 1 shows the electrode configuration of a typical electron gun. The electron gun body 1 is composed of a shield cup 15 to which a G 1 electrode 11, a G 2 electrode 12, a G 3 electrode 13, a G 4 electrode 14 and a contactor 16 are attached, and is connected and held to a stem 2 to which a voltage is applied from the outside. (Specific connection diagram is omitted).
【0003】一般にG3 電極13には中高圧のフォーカ
ス電圧が印加され、そのトータル全長が長いため、及び
速度変調効果を大きくするためG3 電極は分割されて、
多数の電極から構成する。図4の例では、G3 電極13
は、G3 A電極13a,G3B電極13b,G3 C電極
13c,G3 D電極13dで構成されている。このうち
G3 A電極13aとG3 B電極13b、G3 C電極13
cとG3 D電極13dは前工程で予め各々電極のフラン
ジ部を用いて組立溶接される。その後、G1 電極11、
G2 電極12、前組立てされたG3 電極13a,13
b:13c,13d及びG4 電極14をガラスビードに
より組立てる。これはビードガラス3を約1200℃の
高温に加熱することにより行われる。その後G3 電極1
3a,13b:13c,13dの電気導通を得るため導
通リボン4でG3 B電極13bとG3 C電極13cとを
結ぶ。その具体的正面図を図3に示した。G3 B電極1
3bにはインライン3ビームを通す3個の孔13R,1
3G,13Bが配置され、導通リボン4の一端がG3 B
電極13bの孔13B側の電極側壁に1カ所溶接され、
導通リボン4の他端がG3 電極13cに溶接されて電気
導通を行う。そして、フォーカス電圧が印加されるG3
電極13aはG3 コネクター5を介してステム2のリー
ド線に結ばれている。従って、フォーカス電圧はこのG
3 コネクター5を介してG3 電極13a,13b,13
c,13d全てに印加される。Generally, a medium-high voltage is applied to the G 3 electrode 13, the total length of the focus voltage is long, and the G 3 electrode is divided in order to enhance the velocity modulation effect.
It is composed of many electrodes. In the example of FIG. 4, the G 3 electrode 13
Is composed of a G 3 A electrode 13a, a G 3 B electrode 13b, a G 3 C electrode 13c, and a G 3 D electrode 13d. Of these, the G 3 A electrode 13a, the G 3 B electrode 13b, and the G 3 C electrode 13
The c and G 3 D electrodes 13d are assembled and welded in advance by using the flange portions of the electrodes in the previous step. After that, the G 1 electrode 11,
G 2 electrode 12, pre-assembled G 3 electrodes 13a, 13
b: 13c, and 13d and G 4 electrode 14 assembled by a glass bead. This is done by heating the bead glass 3 to a high temperature of about 1200 ° C. Then G 3 electrode 1
3a, 13b: 13c, 13d are connected to each other by the conductive ribbon 4 to connect the G 3 B electrode 13b and the G 3 C electrode 13c. The specific front view is shown in FIG. G 3 B electrode 1
3b has three holes 13R, 1 for passing in-line 3 beams.
3G and 13B are arranged, and one end of the conductive ribbon 4 is G 3 B.
One place is welded to the side wall of the electrode 13b on the hole 13B side,
The other end of the conducting ribbon 4 is welded to the G 3 electrode 13c to conduct electricity. Then, the focus voltage is applied to G 3
The electrode 13a is connected to the lead wire of the stem 2 via the G 3 connector 5. Therefore, the focus voltage is G
G 3 electrodes 13a, 13b, 13 via the 3 connector 5
It is applied to all of c and 13d.
【0004】[0004]
【発明が解決しようとする課題】従来の電子銃は前述の
ごとく、G3 電極間の導通を1カ所の導通リボン4を介
して行っているため、ブラウン管製造中の排気工程で電
極からガスを放出すべく高温に加熱されると電極が熱膨
張するのであるが、その際電子銃本体1の主レンズを構
成するG3 電極13dとG4 電極14の間隔dの間隔平
行度を悪化させる現象があり冷却時にも戻らず、この間
隔d部で構成される電子レンズが傾き、非対称になり電
子ビームの収束状態が非対称になりハローが偏りフォー
カス性能を悪化させていた。As described above, in the conventional electron gun, the conduction between the G 3 electrodes is carried out through one conduction ribbon 4, so that gas is emitted from the electrodes in the exhaust process during the manufacture of the cathode ray tube. When the electrode is heated to a high temperature for emission, the electrode thermally expands. At that time, the gap parallelism of the gap d between the G 3 electrode 13d and the G 4 electrode 14 forming the main lens of the electron gun body 1 is deteriorated. Therefore, the electron lens formed by the interval d is tilted and asymmetrical, and the converged state of the electron beam is asymmetrical and the halo is biased to deteriorate the focusing performance.
【0005】この発明は上記のような主レンズ電極間隔
の平行度劣化を解消するためになされたものである。The present invention has been made to solve the above-described deterioration in parallelism of the main lens electrode spacing.
【0006】[0006]
【課題を解決するための手段】この発明に係る電子銃
は、多分割された電極を導通リボンで電気的導通する際
に、インライン3ビーム電極孔を有する電極の対角方向
において導通リボンを2箇所設けるものである。According to the electron gun of the present invention, when electrically conducting a multi-divided electrode with a conducting ribbon, the conducting ribbon is provided with two conducting ribbons in a diagonal direction of an electrode having an in-line three-beam electrode hole. It is to be provided in some places.
【0007】[0007]
【作用】この発明においては導通リボンがインライン3
ビーム電極孔を有する電極の対角方向の外壁に、2箇所
取り付けられているため、電極が加熱される熱工程中の
電極の熱変形が対称に起こるため、G3 電極が傾く事が
解消される。In the present invention, the conductive ribbon has the in-line 3
Since the two electrodes are attached to the diagonal outer wall of the electrode having the beam electrode holes, thermal deformation of the electrodes occurs symmetrically during the heating process in which the electrodes are heated, so that the G 3 electrode is prevented from tilting. It
【0008】[0008]
【実施例】この発明の一実施例を図1に示す。本発明の
電子銃ではG3 電極13b,13cを電気的に導通させ
る導通リボンを二つ設けたものである。その詳細を図2
に示す。G3 B電極13bは従来と同様インライン3ビ
ーム通過孔13R,13G,13Bを有するが、一つの
導通リボン4aをG3 電極13bの孔13R側の下方外
壁に、もう一つの導通リボン4bはG3 電極13bの孔
13B側の上方外壁に溶接配置する。すなわち、図2に
示すごとく、二つの導通リボン4a,4bは対角方向に
配置する。G3 C電極13cにおける導通リボン4a,
4bの他端の位置もG3 B電極13と対向した同じ位置
であり、溶接された電気導通を行う。なおこの導通リボ
ン4a,4bの溶接は従来と同様に各電極をビードガラ
ス3でビード組立後に実施する。FIG. 1 shows an embodiment of the present invention. The electron gun of the present invention is provided with two conductive ribbons that electrically connect the G 3 electrodes 13b and 13c. The details are shown in Figure 2.
Shown in. The G 3 B electrode 13b has in-line 3 beam passage holes 13R, 13G, 13B as in the conventional case, but one conducting ribbon 4a is formed on the lower outer wall of the G 3 electrode 13b on the side of the hole 13R, and the other conducting ribbon 4b is G. 3 The electrode 13b is welded to the upper outer wall of the hole 13B side. That is, as shown in FIG. 2, the two conductive ribbons 4a and 4b are arranged diagonally. Conductive ribbon 4a on the G 3 C electrode 13c,
The position of the other end of 4b is also the same position facing the G 3 B electrode 13, and welded electrical conduction is performed. The welding of the conductive ribbons 4a and 4b is carried out after bead assembly of the electrodes with the bead glass 3 as in the conventional case.
【0009】カラーブラウン管の製造工程中、特に排気
工程において電子銃の電極からのガス放出を促進させる
ためカラーブラウン管は500〜600℃の温度に高周
波加熱される。従って、多分割されたG3 電極の各電極
が電子銃の軸方向に熱膨張する。その変位量は0.1m
mのオーダとなる。その際、G3 電極13b,13cは
互いに熱膨張して各電極の電極支持部(フランジのうち
ガラスビード3に接している付近)を変形させビードガ
ラス3に保持された電極支持部を固定点として曲がり、
高周波加熱終了後冷却されてもこの電極間に間隔が残
る。しかし本発明ではG3 B電極13b,G3 C電極1
3cには対角方向に2個のリボンが溶接されているた
め、軸方向の変形が対称になり電極13c,13bの電
極傾きが軽減される。従ってG4 電極14とG3 電極1
3との間隔dの間隔平行度の悪化が軽減される。なお、
図2の如く一つの対角方向に2個の導通リボンを設ける
ことに限定されず、もう一つの対角方向にも2個の導通
リボンを設けてもよい。ともかく、熱膨張による変形が
対称となるように複数本の導通リボンを配置して溶接す
ればよい。During the manufacturing process of the color cathode ray tube, particularly in the exhausting step, the color cathode ray tube is heated at a high frequency of 500 to 600 ° C. in order to accelerate the gas emission from the electrode of the electron gun. Therefore, each of the multi-divided G 3 electrodes thermally expands in the axial direction of the electron gun. The displacement is 0.1m
The order is m. At that time, the G 3 electrodes 13b and 13c thermally expand each other to deform the electrode supporting portions of the respective electrodes (the vicinity of the flange that is in contact with the glass beads 3) and fix the electrode supporting portions held by the bead glass 3 to the fixing points. Bend as
Even if the electrodes are cooled after completion of high-frequency heating, a gap remains between these electrodes. However, in the present invention, the G 3 B electrode 13b and the G 3 C electrode 1
Since two ribbons are welded diagonally to 3c, the axial deformation is symmetrical and the electrode inclination of the electrodes 13c and 13b is reduced. Therefore, G 4 electrode 14 and G 3 electrode 1
The deterioration of the parallelism of the distance d with respect to 3 is reduced. In addition,
As shown in FIG. 2, it is not limited to providing two conducting ribbons in one diagonal direction, and two conducting ribbons may be provided in another diagonal direction. In any case, a plurality of conductive ribbons may be arranged and welded so that the deformation due to thermal expansion is symmetrical.
【0010】[0010]
【発明の効果】以上のように、この発明によれば多分割
された電極を導通させる導通リボンを少なくとも一つの
対角方向に2個設ける構成としたため、電子銃がブラウ
ン管製造工程中高温加熱されても、電極傾きが少なく、
電極間隔変化も少ない高精度電子銃が得られ、フォーカ
ス性能劣化を防げる効果がある。As described above, according to the present invention, since at least two conductive ribbons for conducting the multi-divided electrodes are provided in at least one diagonal direction, the electron gun is heated to a high temperature during the cathode ray tube manufacturing process. However, the electrode inclination is small,
It is possible to obtain a high-precision electron gun with a small change in the electrode spacing, and it is possible to prevent deterioration of the focus performance.
【図1】この発明の一実施例による電子銃の概略構成を
示す側面図である。FIG. 1 is a side view showing a schematic configuration of an electron gun according to an embodiment of the present invention.
【図2】この発明の要部となる導通リボンの溶接配置を
示す断面図である。FIG. 2 is a cross-sectional view showing a welding arrangement of conductive ribbons, which is a main part of the present invention.
【図3】従来の電子銃の導通リボンの溶接配置を示す断
面図である。FIG. 3 is a sectional view showing a welding arrangement of conductive ribbons of a conventional electron gun.
【図4】従来の電子銃の概略構成を示す側面図である。FIG. 4 is a side view showing a schematic configuration of a conventional electron gun.
1 電子銃本体 2 ステム 3 ビードガラス 4a 導通リボン 4b 導通リボン 11 G1 電極 12 G2 電極 13 G3 電極 13a G3 A電極 13b G3 B電極 13c G3 C電極 13d G3 D電極 14 G4 電極 15 シールドカップ 16 コンタクター1 Electron Gun Main Body 2 Stem 3 Bead Glass 4a Conducting Ribbon 4b Conducting Ribbon 11 G 1 Electrode 12 G 2 Electrode 13 G 3 Electrode 13a G 3 A Electrode 13b G 3 B Electrode 13c G 3 C Electrode 13d G 3 D Electrode 14 G 4 Electrode 15 Shield cup 16 Contactor
Claims (2)
導通リボンにより導通される多分割された電極を、熱膨
張による変形が対称となるように、複数本の導通リボン
を多分割された電極に配置して溶接したことを特徴とす
る電子銃。1. An electrode constituting an electron gun for a cathode ray tube,
An electron gun characterized in that a multi-divided electrode conducted by a conducting ribbon is arranged and welded with a plurality of conducting ribbons arranged on the multi-divided electrode so that deformation due to thermal expansion is symmetrical.
る電極の内、多分割されたインライン3ビーム孔を有す
る電極孔面の対角方向の電極側壁に2カ所導通リボンで
溶接し導通させたことを特徴とする電子銃。2. Among electrodes constituting an in-line three-beam type electron gun, welding is conducted at two places on a diagonal electrode side wall of an electrode hole surface having a multi-divided in-line three-beam hole by conducting ribbons. An electron gun characterized by.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31164292A JPH06162957A (en) | 1992-11-20 | 1992-11-20 | Electron gun |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31164292A JPH06162957A (en) | 1992-11-20 | 1992-11-20 | Electron gun |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06162957A true JPH06162957A (en) | 1994-06-10 |
Family
ID=18019735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31164292A Pending JPH06162957A (en) | 1992-11-20 | 1992-11-20 | Electron gun |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06162957A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5939856B2 (en) * | 1974-05-20 | 1984-09-26 | 日本電気株式会社 | infrared night vision device |
-
1992
- 1992-11-20 JP JP31164292A patent/JPH06162957A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5939856B2 (en) * | 1974-05-20 | 1984-09-26 | 日本電気株式会社 | infrared night vision device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH06162957A (en) | Electron gun | |
JP2737616B2 (en) | Field emission cathodes for cathode ray tubes and cathode ray tubes | |
US5894190A (en) | Color cathode ray tube having a large-diameter lens | |
JP3157856B2 (en) | Electron gun for cathode ray tube | |
KR100198580B1 (en) | A bead-glass supporter structure of electrode of the electron-gun used in the crt | |
JP2960501B2 (en) | Electron gun for cathode ray tube | |
US6603253B2 (en) | Color cathode ray tube with wire having folded portion | |
KR200190103Y1 (en) | Electron gun for cathode ray tube | |
US4870320A (en) | Color picture tube having an electron gun with reduced convergence drift | |
JPH11233042A (en) | Electron gun for cathode ray tube | |
JPH04230936A (en) | Cathode-ray tube | |
KR200363106Y1 (en) | Stem for cathode ray tube and cathode ray tube having the same | |
KR920005234Y1 (en) | One-body type electrode of crt | |
JPS62145631A (en) | Electron gun body structure | |
KR100343743B1 (en) | Cold cathode type electron gun for cathode ray tube | |
JPH09306376A (en) | Electron gun for cathode-ray tube | |
US6239544B1 (en) | Flat-type image display apparatus with insulating positioning members | |
KR0131438Y1 (en) | Electrode of electron gun for color picture tube | |
JPH0474820B2 (en) | ||
JP2001093435A (en) | Cathode-ray tube and electron gun | |
JPH1040828A (en) | Cathode-ray tube electron gun | |
JPH04160736A (en) | Electron gun for cathode-ray tube | |
JPS6311744B2 (en) | ||
JPH0737519A (en) | Electron gun | |
JPH0620620A (en) | Electron gun |