JP3403746B2 - Color picture tube equipment - Google Patents
Color picture tube equipmentInfo
- Publication number
- JP3403746B2 JP3403746B2 JP02908393A JP2908393A JP3403746B2 JP 3403746 B2 JP3403746 B2 JP 3403746B2 JP 02908393 A JP02908393 A JP 02908393A JP 2908393 A JP2908393 A JP 2908393A JP 3403746 B2 JP3403746 B2 JP 3403746B2
- Authority
- JP
- Japan
- Prior art keywords
- focusing electrode
- electron beam
- electrode
- beam passage
- face
- 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 - Fee Related
Links
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、螢光体スクリーン面の
全域において、高い解像度が得られるように構成したカ
ラー受像管装置に関するものである。
【０００２】
【従来の技術】インラインカラー受像管装置では、電子
ビームを偏向させる磁界によってスクリーン面周辺部で
ビームスポットのフォーカス劣化が著しいという問題が
ある。そこで、かかる問題を解決することができるカラ
ー受像管装置が提案されている(特開昭61−99249号公報
参照)。このカラー受像管装置では、図５に示したよう
に、陰極１a，１b，１c、制御格子電極２、加速電極
３、第１集束電極４、第２集束電極５及び最終加速電極
６を順次に配列している。
【０００３】第１集束電極４にはフォーカス電圧Ｖfoc
が印加され、また第２集束電極５にはフォーカス電圧Ｖ
focに電源７の電圧が重畳されて、電子ビームの偏向角
度の増大に伴い上昇するダイナミック電圧が印加され、
両電極４，５の間に生成される４極レンズ電界により、
ビームスポットのフォーカス劣化を補正することができ
る。
【０００４】前記４極レンズ電界の生成手段として、図
６に示したように、第１集束電極４の第２集束電極５側
端面に縦長の非円形電子ビーム通過孔４a，４b，４cを
設けると共に、第２集束電極５の第１集束電極４側端面
に横長の非円形電子ビーム通過孔５a，５b，５cを設け
ている。
【０００５】
【発明が解決しようとする課題】しかしながら、第１集
束電極と第２集束電極とが互いに対向する端面に設けら
れた電子ビーム通過孔は水平方向、垂直方向いずれも長
さが異なるため、孔中心を精度良く合わせて組み立てる
ことが難しい。即ち、図７に示したように、一方の水平
方向は固定できるがもう一方の垂直方向は固定できない
という問題があった。
【０００６】本発明は、上記従来技術の問題点を解決す
るもので、第１集束電極と第２集束電極とを精度良く組
み立てることができるカラー受像管装置を提供すること
を目的とする。
【０００７】
【課題を解決するための手段】この目的を達成するため
に、本発明のカラー受像管装置は、制御格子電極と最終
加速電極との間に、所定の加速電圧が印加される加速電
極と、所定のフォーカス電圧が印加される第１集束電極
と、前記フォーカス電圧から電子ビームの偏向角度の増
大に伴い漸次上昇するダイナミック電圧が印加される第
２集束電極とをこの順序で配設し、前記第１集束電極の
前記第２集束電極側端面に穿設された電子ビーム通過孔
と、前記第２集束電極の前記第１集束電極側端面に穿設
された電子ビーム通過孔とが共に非円形であるカラー受
像管装置において、前記第１集束電極の前記第２集束電
極側端面に穿設された電子ビーム通過孔および前記第２
集束電極の前記第１集束電極側端面に穿設された電子ビ
ーム通過孔の数をそれぞれ３つとし、前記第１集束電極
の前記第２集束電極側端面に穿設された電子ビーム通過
孔の長さと、前記第２集束電極の前記第１集束電極側端
面に穿設された電子ビーム通過孔の長さとを、水平方
向、垂直方向のいずれかの方向で互いに等しくし、前記
第２集束電極の前記第１集束電極側端面に穿設された電
子ビーム通過孔の大きさを前記第１集束電極の前記第２
集束電極側端面に穿設された電子ビーム通過孔の大きさ
より大きくしたものである。
【０００８】
【作用】このような構成を採用することにより、電極組
立の際、第１集束電極と第２集束電極の互いに対向する
端面の電子ビーム通過孔は、水平、垂直とも電極組立器
具で直接固定できるので、両電極を精度良く組み立てる
ことができる。
【０００９】
【実施例】以下、図面を参照して実施例を詳細に説明す
る。図１は本発明の一実施例のカラー受像管装置を示し
たもので、水平一直線上に配列された３個の陰極１a,１
b，１cは、制御格子電極２、加速電極３、第１集束電極
４、第２集束電極５及び最終加速電極６と共にインライ
ン型電子銃を構成している。
【００１０】図２に示したように、第１集束電極４は第
２集束電極５側端面に非円形の電子ビーム通過孔４a，
４b，４cが、そして第２集束電極５は第１集束電極４側
端面に非円形の電子ビーム通過孔５a，５b，５cが、４
極レンズ電界生成手段としてそれぞれ設けられ、かつ両
電子ビーム通過孔４a，４b，４c及び５a，５b，５cはそ
の垂直方向の長さが互いに等しく、水平方向の長さは電
子ビーム通過孔５a，５b，５cの方が電子ビーム通過孔
４a，４b，４cより長くなっている。
【００１１】第１集束電極４と第２集束電極５の組立
は、図３に示したように、両電極４と５の対向する両電
子ビーム通過孔４a，５aと同じ形状断面をもつ電極組立
器具８に、電極５、電極４を順次嵌合させることで行
う。このとき、両電子ビーム通過孔４a，５aはいずれも
電極組立器具８に寸分なく収まり、水平方向と垂直方向
を同時に固定することができる。かかる作用によって、
両電極４と５を精度良く組み立てることができる。
【００１２】なお、以上は電極４と５の対向する非円形
電子ビーム通過孔の各垂直方向の長さを互いに等しくし
た場合について述べたが、水平方向の長さを互いに等し
くした場合も、図４に示したように、同様の説明があて
はまる。
【００１３】
【発明の効果】以上説明したように、本発明によれば、
第１集束電極と第２集束電極とを精度良く組み立てるこ
とができ、また、両電極の互いに対向する端面に設けた
電子ビーム通過孔の非円形性は保たれるので、従来どお
り４極レンズ電界生成も可能である。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color picture tube apparatus configured to obtain a high resolution over the entire area of a phosphor screen. 2. Description of the Related Art In an in-line color picture tube device, there is a problem that a magnetic field for deflecting an electron beam causes significant deterioration of focus of a beam spot in a peripheral portion of a screen surface. Therefore, a color picture tube device capable of solving such a problem has been proposed (see Japanese Patent Application Laid-Open No. 61-99249). In this color picture tube device, as shown in FIG. 5, the cathodes 1a, 1b, 1c, the control grid electrode 2, the acceleration electrode 3, the first focusing electrode 4, the second focusing electrode 5, and the final accelerating electrode 6 are sequentially arranged. They are arranged. The first focusing electrode 4 has a focus voltage Vfoc
Is applied, and the focus voltage V is applied to the second focusing electrode 5.
The voltage of the power supply 7 is superimposed on foc, and a dynamic voltage that increases with an increase in the deflection angle of the electron beam is applied.
Due to the quadrupole lens electric field generated between the electrodes 4 and 5,
Focus deterioration of the beam spot can be corrected. As means for generating the quadrupole lens electric field, as shown in FIG. 6, vertically long non-circular electron beam passage holes 4a, 4b, 4c are provided at the end face of the first focusing electrode 4 on the second focusing electrode 5 side. At the same time, horizontally long non-circular electron beam passage holes 5a, 5b, 5c are provided on the end face of the second focusing electrode 5 on the first focusing electrode 4 side. [0005] However, the electron beam passage holes provided in the end faces of the first focusing electrode and the second focusing electrode facing each other have different lengths in both the horizontal and vertical directions. , It is difficult to assemble with the hole centers aligned accurately. That is, as shown in FIG. 7, there is a problem that one horizontal direction can be fixed but the other vertical direction cannot be fixed. An object of the present invention is to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a color picture tube device capable of assembling a first focusing electrode and a second focusing electrode with high accuracy. In order to achieve this object, a color picture tube apparatus according to the present invention comprises an acceleration device in which a predetermined acceleration voltage is applied between a control grid electrode and a final acceleration electrode. An electrode, a first focusing electrode to which a predetermined focus voltage is applied, and a second focusing electrode to which a dynamic voltage gradually increasing from the focus voltage with an increase in the deflection angle of the electron beam are applied in this order. An electron beam passage hole formed in the end face of the first focusing electrode on the side of the second focusing electrode, and an electron beam passage hole formed in the end face of the second focusing electrode on the side of the first focusing electrode. In a color picture tube device, both of which are non-circular, the second focusing electrode of the first focusing electrode
An electron beam passage hole formed in the pole side end face;
An electronic via hole formed in the end surface of the focusing electrode on the first focusing electrode side
The number of the beam passage holes is three, and the first focusing electrode
Electron beam passage drilled in the second focusing electrode side end face of the
The length of the hole and the end of the second focusing electrode on the first focusing electrode side
And the length of the electron beam passage holes formed in the plane, the horizontal direction, equal to each other physician in either direction in the vertical direction, are formed in the first focusing electrode side end face of the second focusing electrode Electric
The size of the secondary beam passage hole is determined by the second focusing electrode.
The size is larger than the size of the electron beam passage hole formed in the end surface on the focusing electrode side . By adopting such a configuration, when assembling the electrodes, the electron beam passing holes at the end faces of the first focusing electrode and the second focusing electrode facing each other can be horizontally and vertically formed by an electrode assembly tool. Since the electrodes can be directly fixed, both electrodes can be assembled with high accuracy. An embodiment will be described below in detail with reference to the drawings. FIG. 1 shows a color picture tube device according to an embodiment of the present invention, in which three cathodes 1a, 1 arranged in a horizontal straight line.
b and 1c constitute an in-line type electron gun together with the control grid electrode 2, the acceleration electrode 3, the first focusing electrode 4, the second focusing electrode 5, and the final accelerating electrode 6. As shown in FIG. 2, the first focusing electrode 4 has non-circular electron beam passing holes 4a, 4b at the end face on the second focusing electrode 5 side.
4b and 4c, and the second focusing electrode 5 has non-circular electron beam passing holes 5a, 5b and 5c on the end face on the first focusing electrode 4 side.
The two electron beam passage holes 4a, 4b, 4c and 5a, 5b, 5c are provided as pole lens electric field generating means, respectively, and have the same vertical length and the same horizontal length.
The electron beam passage holes 5a, 5b and 5c are the electron beam passage holes.
It is longer than 4a, 4b, 4c . As shown in FIG. 3, the first focusing electrode 4 and the second focusing electrode 5 are assembled by an electrode assembly having the same cross section as the two electron beam passing holes 4a and 5a of the two electrodes 4 and 5 facing each other. This is performed by sequentially fitting the electrode 5 and the electrode 4 to the device 8. At this time, both of the electron beam passage holes 4a and 5a are completely accommodated in the electrode assembling device 8, and the horizontal direction and the vertical direction can be simultaneously fixed. By such action,
Both electrodes 4 and 5 can be assembled with high precision. In the above description, the case where the vertical lengths of the opposed non-circular electron beam passage holes of the electrodes 4 and 5 are equal to each other is described. 4, the same description applies. As described above, according to the present invention,
The first focusing electrode and the second focusing electrode can be assembled with high accuracy, and the non-circularity of the electron beam passage holes provided at the end faces of the two electrodes facing each other is maintained. Generation is also possible.
【図面の簡単な説明】
【図１】本発明の一実施例におけるカラー受像管装置の
電子銃の断面図である。
【図２】同実施例の第１集束電極と第２集束電極の各対
向端面における電子ビーム通過孔を示す図である。
【図３】同通過孔の垂直方向の長さが等しい場合の組立
時の位置合わせを示す図である。
【図４】通過孔の水平方向の長さが等しい場合の組立時
の位置合わせを示す図である。
【図５】従来のカラー受像管装置の電子銃の断面図であ
る。
【図６】同第１集束電極と第２集束電極の各対向端面に
おける電子ビーム通過孔を示す図である。
【図７】同組立時の位置合わせを示す図である。
【符号の説明】
１a,１b,１c … 陰極、 ２ … 制御格子電極、 ３ …
加速電極、 ４ …第１集束電極、 ４a,４b,４c …
第１集束電極の第２集束電極側端面の非円形電子ビーム
通過孔、 ５ … 第２集束電極、 ５a,５b,５c … 第
２集束電極の第１集束電極側端面の非円形電子ビーム通
過孔、 ６ … 最終加速電極、７ … 電源。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of an electron gun of a color picture tube device according to an embodiment of the present invention. FIG. 2 is a view showing an electron beam passage hole in each of opposing end surfaces of a first focusing electrode and a second focusing electrode of the embodiment. FIG. 3 is a diagram showing alignment during assembling when the vertical lengths of the passage holes are equal. FIG. 4 is a diagram showing alignment during assembling when the horizontal lengths of the passage holes are equal. FIG. 5 is a sectional view of an electron gun of a conventional color picture tube device. FIG. 6 is a view showing an electron beam passage hole in each of opposing end faces of the first focusing electrode and the second focusing electrode. FIG. 7 is a view showing alignment during the assembly. [Description of Signs] 1a, 1b, 1c: Cathode, 2 ... Control grid electrode, 3 ...
Acceleration electrode, 4 ... first focusing electrode, 4a, 4b, 4c ...
Non-circular electron beam passage holes on the end face of the first focusing electrode on the side of the second focusing electrode, 5... Non-circular electron beam passing holes on the end face of the second focusing electrode on the side of the first focusing electrode, 5a, 5b, 5c , 6 ... final accelerating electrode, 7 ... power supply.
フロントページの続き (56)参考文献 特開 平５−166468（ＪＰ，Ａ) 特開 昭63−32837（ＪＰ，Ａ) 特公 昭57−15463（ＪＰ，Ｂ２) 欧州特許出願公開509590（ＥＰ，Ａ １) (58)調査した分野(Int.Cl.7，ＤＢ名) H01J 29/48 - 29/50 Continuation of the front page (56) References JP-A-5-166468 (JP, A) JP-A-63-32837 (JP, A) JP-B-57-15463 (JP, B2) European Patent Application Publication 509590 (EP, A1) (58) Field surveyed (Int. Cl. 7 , DB name) H01J 29/48-29/50
Claims (1)
所定の加速電圧が印加される加速電極と、所定のフォー
カス電圧が印加される第１集束電極と、前記フォーカス
電圧から電子ビームの偏向角度の増大に伴い漸次上昇す
るダイナミック電圧が印加される第２集束電極とをこの
順序で配設し、前記第１集束電極の前記第２集束電極側
端面に穿設された電子ビーム通過孔と、前記第２集束電
極の前記第１集束電極側端面に穿設された電子ビーム通
過孔とが共に非円形であるカラー受像管装置において、前記第１集束電極の前記第２集束電極側端面に穿設され
た電子ビーム通過孔および前記第２集束電極の前記第１
集束電極側端面に穿設された電子ビーム通過孔の数をそ
れぞれ３つとし、 前記第１集束電極の前記第２集束電極側端面に穿設され
た電子ビーム通過孔の長さと、前記第２集束電極の前記
第１集束電極側端面に穿設された電子ビーム通過孔の長
さとを、水平方向、垂直方向のいずれかの方向で互いに
等しくし、前記第２集束電極の前記第１集束電極側端面
に穿設された電子ビーム通過孔の大きさを前記第１集束
電極の前記第２集束電極側端面に穿設された電子ビーム
通過孔の大きさより大きくしたことを特徴とするカラー
受像管装置。(57) [Claims 1] Between the control grid electrode and the final acceleration electrode,
An accelerating electrode to which a predetermined accelerating voltage is applied, a first focusing electrode to which a predetermined focus voltage is applied, and a second voltage to which a dynamic voltage that gradually increases from the focus voltage as the deflection angle of the electron beam increases is applied. A focusing electrode is arranged in this order, and an electron beam passage hole formed in the end face of the first focusing electrode on the side of the second focusing electrode, and a focusing hole on the end face of the second focusing electrode on the side of the first focusing electrode. In a color picture tube device in which the provided electron beam passage holes are both non-circular, a hole is formed in an end face of the first focusing electrode on the side of the second focusing electrode.
The electron beam passage hole and the first focusing electrode of the second focusing electrode.
The number of electron beam passage holes drilled on the focusing electrode side
Respectively 3 Tsutoshi, drilled in the second focusing electrode side end face of the first focusing electrode
The length of the electron beam passage hole, and the length of the second focusing electrode.
The length of the electron beam passage hole formed in the end surface of the first focusing electrode side
Ri, horizontal, and equal to each other physician in either direction in the vertical direction, the first focusing electrode side end face of the second focusing electrode
The size of the electron beam passage hole formed in the
Electron beam perforated on the end face of the electrode on the side of the second focusing electrode
A color picture tube device having a size larger than the size of the passage hole .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02908393A JP3403746B2 (en) | 1993-02-18 | 1993-02-18 | Color picture tube equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02908393A JP3403746B2 (en) | 1993-02-18 | 1993-02-18 | Color picture tube equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06243796A JPH06243796A (en) | 1994-09-02 |
| JP3403746B2 true JP3403746B2 (en) | 2003-05-06 |
Family
ID=12266458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02908393A Expired - Fee Related JP3403746B2 (en) | 1993-02-18 | 1993-02-18 | Color picture tube equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3403746B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5715463B2 (en) | 2011-03-29 | 2015-05-07 | 富士重工業株式会社 | Vehicle driving support device |
-
1993
- 1993-02-18 JP JP02908393A patent/JP3403746B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5715463B2 (en) | 2011-03-29 | 2015-05-07 | 富士重工業株式会社 | Vehicle driving support device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06243796A (en) | 1994-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0332469B1 (en) | Electron gun for color picture tube device | |
| JPH0360147B2 (en) | ||
| JP2938476B2 (en) | Color picture tube equipment | |
| KR19990029566A (en) | Color cathode ray tube | |
| JP3403746B2 (en) | Color picture tube equipment | |
| JPH0665004B2 (en) | Electron gun device | |
| CN1018492B (en) | Color cathode ray tube device | |
| JP2002075240A (en) | Cathode ray tube device | |
| GB2314966A (en) | Electron gun for colour cathode ray tube | |
| JP3038217B2 (en) | Color picture tube equipment | |
| JP3262619B2 (en) | Color picture tube equipment | |
| JP3427513B2 (en) | Color picture tube | |
| KR20010030456A (en) | A color cathode ray tube | |
| JP2684996B2 (en) | In-line color cathode ray tube | |
| JP3401839B2 (en) | Color picture tube equipment | |
| JP3040272B2 (en) | Color picture tube equipment | |
| JP2796104B2 (en) | Electron gun for color picture tube | |
| JP3110542B2 (en) | Color picture tube | |
| KR20020015440A (en) | Electron gun for color cathode ray tube | |
| KR100294500B1 (en) | electronic gun for cathode ray tube | |
| JP3427503B2 (en) | Color picture tube | |
| JP2960498B2 (en) | Color picture tube equipment | |
| JP2661059B2 (en) | Cathode ray tube | |
| JPH07282740A (en) | Electron gun for color cathode ray tube | |
| JPH05266822A (en) | Color picture tube device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080229 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090228 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100228 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |