JPS5991637A - Electron gun structure for color picture tube - Google Patents
Electron gun structure for color picture tubeInfo
- Publication number
- JPS5991637A JPS5991637A JP20269182A JP20269182A JPS5991637A JP S5991637 A JPS5991637 A JP S5991637A JP 20269182 A JP20269182 A JP 20269182A JP 20269182 A JP20269182 A JP 20269182A JP S5991637 A JPS5991637 A JP S5991637A
- Authority
- JP
- Japan
- Prior art keywords
- grid
- parts
- prepared
- electron gun
- wall
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
- H01J29/503—Three or more guns, the axes of which lay in a common plane
Abstract
Description
【発明の詳細な説明】
本発明はカラー受像管用電子銃に関し、複数の電子ビー
ムを射出する電子銃の主電子レンズを形成するＹＬ極の
構造に関するものである。。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electron gun for a color picture tube, and more particularly to a structure of YL poles forming a main electron lens of an electron gun that emits a plurality of electron beams. .
カラー受像管はファンネルネック内壁に装着された電子
銃の複数の電子ビームが陰極より放射され、加速して主
電子レンズにより螢光スクリーン上に収束される様にな
っている。一般に主電子レンズの直径はファンネルネッ
ク内径と電子銃の構造によってその最大径が規定される
。In a color picture tube, multiple electron beams from an electron gun mounted on the inner wall of the funnel neck are emitted from a cathode, accelerated, and focused onto a fluorescent screen by a main electron lens. Generally, the maximum diameter of the main electron lens is determined by the inner diameter of the funnel neck and the structure of the electron gun.
一般にシャドウマスク形カラー受像管用電子銃は、−列
配置方式の一体化電極電子銃の構造の一例を代表として
説明すると電子銃構体Ｍ１図（ａ）およびΦ）は陰極１
、第１グリツド２、第２グリツド３．２個の有底筒状電
極４１と４２からなる第３グリツド４、同じく第４グリ
ツド５、第５グリツド６、第６グリツド７、およびこれ
らの電極をそれぞれ植設するガラス支持体８から成シ、
一体化された各グリッドにそれぞれ３個の電子ビーム通
過孔部９が設けられている。更に第５グリツド６を例に
とれば、横断面図第２図の中央通過孔部１０で形成され
る静電レンズと両側の通過孔部１１および１２に形成さ
れる静電レンズとが互いに干渉しない様にするためのバ
ーリング部１（１＋、１１＋、１２＋がそれぞれ独立し
て設けられている。このバーリング部の高さは通過孔直
径の１／２以上が必要とされている。しかし斜視図第３
図（ａ）およびψ）のバーリング部加工上、ブリッジ部
１３１および１３１の巾はある程度以下に狭くすること
が出来ず、その限度は電極を形成する金属板厚、金型の
強度、通過孔直径に対するバーリング部高さの比率が塑
性加工上の弾性限度を超えると破断するという欠点があ
った。In general, a shadow mask type electron gun for a color picture tube is explained using an example of the structure of an integrated electrode electron gun of a -row arrangement type.
, a first grid 2, a second grid 3. a third grid 4 consisting of two bottomed cylindrical electrodes 41 and 42, a fourth grid 5, a fifth grid 6, a sixth grid 7, and these electrodes. Consisting of a glass support 8 planted respectively;
Three electron beam passage holes 9 are provided in each integrated grid. Furthermore, taking the fifth grid 6 as an example, the electrostatic lens formed in the central passage hole 10 in the cross-sectional view of FIG. 2 and the electrostatic lenses formed in the passage holes 11 and 12 on both sides interfere with each other. Burring portions 1 (1+, 11+, and 12+) are provided independently to prevent this from occurring.The height of this burring portion is required to be at least 1/2 of the diameter of the passage hole.However, the perspective view Third
Due to the processing of the burring parts in Figures (a) and ψ), the width of the bridge parts 131 and 131 cannot be made narrower than a certain level, and the limits are the thickness of the metal plate forming the electrode, the strength of the mold, and the diameter of the through hole. If the ratio of the height of the burring part to the height of the burring part exceeds the elastic limit for plastic working, it will break.
また通過孔直径を小さくしてバーリング部高さの比率を
高くすると主電子レンズは極めて球面収差が大きくなる
という欠点があった３゜さらにはバーリング部をプレス
加工する工程などにより機械的な歪が入シ烏〈カラー受
像管の電子銃封止工程や、エージング工程の熱ｆｌｕに
よる変形が生じ主電子レンズの球面収差を大きくしやす
いという欠点がちりだ。Furthermore, when the diameter of the passage hole is made smaller and the ratio of the height of the burring part is increased, the main electron lens has the disadvantage that the spherical aberration becomes extremely large.3°Furthermore, the process of pressing the burring part causes mechanical distortion. The drawback is that the spherical aberration of the main electron lens tends to increase due to deformation caused by heat flue during the color picture tube's electron gun sealing process and aging process.
本発明は一列配列された電子ビームを独立電極を精度良
くガラス支持体に植設する包絡曲線で連らなったバーリ
ング部を有する支持体を提供することを目的としている
。SUMMARY OF THE INVENTION An object of the present invention is to provide a support body having a burring portion connected in an envelope curve for accurately implanting independent electrodes into a glass support body for electron beams arranged in a row.
まず本発明のカラー受像管用電子銃の一実施例を第４図
および第５図によシ説明すると、陰極１、第１グリツド
２、第２グリツド３は従来通シの電極形状にし、第３グ
リツド２０、第４グリツド２１、第５グリツド２２、第
６グリツド２３は独立電極電子銃構体とし、電子ビーム
の通過孔部と高さ方向の壁部の比を１／２以上の自由な
比率が選択でき、また中央の通過孔部で形成される静電
レンズと両側の通過孔部に形成される静電レンズとが干
渉しない様に設ける。First, an embodiment of an electron gun for a color picture tube according to the present invention will be explained with reference to FIGS. The grid 20, the fourth grid 21, the fifth grid 22, and the sixth grid 23 are independent electrode electron gun structures, and the ratio of the electron beam passage hole to the wall in the height direction is set to a ratio of 1/2 or more. The electrostatic lens formed in the central passage hole and the electrostatic lenses formed in the passage holes on both sides are provided so as not to interfere with each other.
例えば第６グリツド２３で説明すると、独立円筒壁部２
４＋、ｔ−の端面をカールしたカール部２５ ｓ、ｔ、
ｓ他端を開口した開口部２６１．！、ｌが各々独立電極
を肩しこの各独立電極の円筒壁部２４１．１．ｓに嵌合
する包絡曲面２７で連らなったバーリング部２８とガラ
ス支持体８に植設されるフランジ部２９から成り嵌合后
、治具によシ所定の寸法を決め溶着し第６グリツド２３
を形成する。For example, in the case of the sixth grid 23, the independent cylindrical wall 2
Curled portion 25 s, t, where the end faces of 4+ and t- are curled.
s Opening 261 at the other end. ! , l each shoulder an independent electrode, and the cylindrical wall portion 241.1 . It consists of a burring part 28 connected by an envelope curved surface 27 that fits into the glass support 8 and a flange part 29 that is implanted in the glass support 8. After fitting, a predetermined size is determined using a jig and welded to form the sixth grid. 23
form.
以上の様な電子銃検体によシ、第１に主電子レンズ系の
形成が異形形状から独立円筒形状電極に出来るためプレ
ス加工精度、加工歪、機械的シ冒ツクに強いことである
。第２に主電子レンズ直径を独立円筒電極の側壁同志が
接触するまで大とする仁とが出来て、′ブ：リッジ部１
３＋、１．３ｇの制限によるバーリング部１０＋ 、１
１１．１２１の高さの心配がなくなシ、球面収差の改善
が大となる。第３に独立円筒電極を固着するバーリング
部２８の壁が３個の連通孔で形成され、包絡曲線２７で
連らなっている支持体がガラス支持体８に植設される際
の圧縮歪、熱歪をフランジ部２９に吸収し直接独立円筒
電極に影響されず機械的歪が入らない。The first advantage of the electron gun specimen described above is that since the main electron lens system can be formed into an independent cylindrical electrode from an irregular shape, it is resistant to press processing accuracy, processing distortion, and mechanical shock. Second, the diameter of the main electron lens is increased until the side walls of the independent cylindrical electrodes come into contact with each other.
3+, burring part 10+ due to 1.3g limit, 1
There is no need to worry about the height of 11.121, and spherical aberration is greatly improved. Thirdly, the wall of the burring part 28 that fixes the independent cylindrical electrode is formed of three communicating holes, and compressive strain occurs when the support body, which is connected with the envelope curve 27, is implanted in the glass support body 8; Thermal strain is absorbed by the flange portion 29 and is not directly affected by the independent cylindrical electrode, so no mechanical strain occurs.
次に応用例を第６図（ａ）、Φ）に示すと、電極支持体
３０１３０ｇをフランジ部２９を背中合せで密着させ、
ガラス支持体８に植設する支持強度を増加させｆｃシ、
またはＮ２極支持体３０’＋、３σ２を対向させてガラ
ス支持体８に植設させてもその効果には１向に限定され
るものではなく他の形式の電子銃にもそのまま適用可能
である。Next, an application example is shown in FIG. 6(a), Φ), in which the electrode support 30130g is brought into close contact with the flange portion 29 back to back,
increasing the support strength of the glass support 8;
Alternatively, even if the N2 pole supports 30'+ and 3σ2 are placed facing each other on the glass support 8, the effect is not limited to one direction and can be applied to other types of electron guns as is. .
以上述べた如く本発明の電子銃構体は主レンズの直径を
拡大でき、加工歪、機械的強度を解決し高精度で良好な
収束特性が得られるので工業的価値は極めて大である。As described above, the electron gun structure of the present invention can enlarge the diameter of the main lens, solve processing distortion and mechanical strength, and obtain high precision and good convergence characteristics, so it has extremely great industrial value.
第１図（ａ）（ｂ）は、それぞれカラー受像管用電子銃
構体の側面と平面図、ｔ４２図は第５グリツドの横断面
図、第３図（ａ）の）は第５グリツドの分解斜視図、第
４図は本発明に成るカラー受像管用電子銃構体の側面図
、第５図は本発明に成る第６グリッド分解斜視図、第６
図（ａ）Φ）は本発明の応用横断面図例である。
６・・・・・・第５グリツド、２３・・・山第６グリツ
ド、２７・・・・・・包絡曲面、２８・・間包路バーリ
ング部。
２ ？ 回
％ ｌ田
第 ４ 図 箭 ５図
（ｔス、ン
（ｂ）ｚ ６ 図Figures 1 (a) and (b) are side and plan views of the electron gun assembly for color picture tubes, Figure t42 is a cross-sectional view of the fifth grid, and Figure 3 (a) is an exploded perspective view of the fifth grid. 4 is a side view of the electron gun assembly for a color picture tube according to the present invention, and FIG. 5 is an exploded perspective view of the sixth grid according to the present invention.
Figure (a) Φ) is an example of an applied cross-sectional view of the present invention. 6...Fifth grid, 23...Sixth grid of peaks, 27...Envelope curved surface, 28...Inter-envelope burring portion. 2? Times% Figure 4 Figure 5 (ts, n)
(b) z 6 figure
Claims (1)
を形成する電極群の少なくとも１組の電極が円筒状の底
部に電子ビームの通過孔部を有し、他端の開口部にカー
ル部が設けられ、この円筒状の内壁を電子ビームのそれ
ぞれ通過孔部軸と同軸である。円筒状外側壁に沿りた包
終曲面で連らなったバーリンク部と７ランジ部を有する
支持体とから成る仁とを特徴とする力２−受像管用電子
銃構休。In an in-line color picture tube electron gun, at least one set of electrodes forming the main electron lens has a cylindrical bottom with an electron beam passage hole, and an opening at the other end with a curled part. The cylindrical inner wall is coaxial with the axis of each hole through which the electron beam passes. An electron gun assembly for a picture tube, characterized by a bar link part continuous with a curved end surface along a cylindrical outer wall and a support body having seven flange parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20269182A JPS5991637A (en) | 1982-11-18 | 1982-11-18 | Electron gun structure for color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20269182A JPS5991637A (en) | 1982-11-18 | 1982-11-18 | Electron gun structure for color picture tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5991637A true JPS5991637A (en) | 1984-05-26 |
Family
ID=16461552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20269182A Pending JPS5991637A (en) | 1982-11-18 | 1982-11-18 | Electron gun structure for color picture tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5991637A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0597046A1 (en) * | 1992-06-01 | 1994-05-18 | Chunghwa Picture Tubes, Ltd. | Hollow chain link main lens design for color crt |
-
1982
- 1982-11-18 JP JP20269182A patent/JPS5991637A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0597046A1 (en) * | 1992-06-01 | 1994-05-18 | Chunghwa Picture Tubes, Ltd. | Hollow chain link main lens design for color crt |
| EP0597046A4 (en) * | 1992-06-01 | 1994-10-26 | Chen Hsing Yao | Hollow chain link main lens design for color crt. |
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