JPH0546043B2 - - Google Patents
Info
- Publication number
- JPH0546043B2 JPH0546043B2 JP57011671A JP1167182A JPH0546043B2 JP H0546043 B2 JPH0546043 B2 JP H0546043B2 JP 57011671 A JP57011671 A JP 57011671A JP 1167182 A JP1167182 A JP 1167182A JP H0546043 B2 JPH0546043 B2 JP H0546043B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- cup
- hole
- electron gun
- burring
- 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 - Lifetime
Links
- 238000007796 conventional method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
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
Description
【発明の詳細な説明】
本発明はカラーブラウン管用電子銃電極構体に
係り、特にフオーカス品質を維持するために好適
な電極に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electron gun electrode structure for a color cathode ray tube, and more particularly to an electrode suitable for maintaining focus quality.
従来の電子銃の組立方法において、ビーム通過
孔をガイドとして製作する工程がいくつかあげら
れるが、特にカソードとG1電極を一定の距離に
設定固着するスパンセツト工程において、第１図
に示すような従来の電子銃電極では、スパンセツ
トのピン１のガイドを主レンズを形成する電極の
一つであるG3電極カツプ２の孔部と、G3電極ボ
トム３の孔部によつてしか行なえない。このた
め、孔部のブリツジ２ａの変形をさけられなく、
フオーカス特性を劣化させる欠点があつた。 In the conventional method of assembling an electron gun, there are several steps in which the beam passing hole is used as a guide.In particular, the span setting step, in which the cathode and G1 electrode are set and fixed at a certain distance, is as shown in Figure 1. In the conventional electron gun electrode, the pin 1 of the spanset can only be guided through the hole in the G3 electrode cup 2, which is one of the electrodes forming the main lens, and the hole in the G3 electrode bottom 3. Therefore, deformation of the bridge 2a in the hole cannot be avoided,
It had the drawback of deteriorating focus characteristics.
本発明の目的は電極の孔部を変形させることの
ないカラーブラウン管用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 an electron gun electrode assembly for a color cathode ray tube that does not deform the hole of the electrode.
以下、本発明の一実施例を第２図により説明す
る。主レンズを形成する電極の一つであるG3電
極カツプ１２とG3電極ボトム１３の間に、孔径
が上記G3電極カツプ１２のビーム通過孔の孔径
より小さい電子銃組立ガイド用バーリング１４ａ
を有した電極を持つ中間カツプ１４を２個設けて
なる。前記バーリング１４ａは電極の振れを押え
る長さが得られれば充分であり、本構造では約３
mmとなつている。 An embodiment of the present invention will be described below with reference to FIG. An electron gun assembly guide burring 14a whose hole diameter is smaller than the beam passage hole diameter of the G3 electrode cup 12 is placed between the G3 electrode cup 12, which is one of the electrodes forming the main lens, and the G3 electrode bottom 13.
Two intermediate cups 14 are provided with electrodes having . It is sufficient for the burring 14a to have a length that suppresses the deflection of the electrode, and in this structure, the length is approximately 3.
mm.
このバーリング１４ａを利用することにより、
電極の振れを抑え、かつ上記バーリング１４ａの
孔径がG3電極カツプ１２のそれより小さくなつ
ているので、G3電極カツプ１２の孔部に接する
ことなく、所定の作業を終えることができる。よ
つて本実施例によれば、G3電極カツプ１２の孔
部のブリツジ１２ａを変形することなく作業がで
き、安定したフオーカス特性を得ることができ
る。 By using this burring 14a,
Since the deflection of the electrode is suppressed and the hole diameter of the burring 14a is smaller than that of the G3 electrode cup 12, a predetermined work can be completed without coming into contact with the hole of the G3 electrode cup 12. Therefore, according to this embodiment, the work can be performed without deforming the bridge 12a of the hole of the G3 electrode cup 12, and stable focus characteristics can be obtained.
本発明によれば、G3電極組立時にもバーリン
グを基準にすることができ、組立精度の向上にも
効果がある。 According to the present invention, the burring can be used as a reference even when assembling the G3 electrode, which is also effective in improving assembly accuracy.
なお、上述の実施例では主レンズを変形する電
極としてG3電極について説明したが、本発明は
これに限定されるものではなく、主レンズを形成
する電極の全てについて適用されることは明らか
である。 In addition, in the above-mentioned embodiment, the G3 electrode was explained as an electrode that deforms the main lens, but it is clear that the present invention is not limited to this and can be applied to all electrodes that form the main lens. be.
第１図は従来例の要部断面図、第２図は本発明
の一実施例を示す要部断面図である。
１２……G3電極カツプ、１３……G3電極ボト
ム、１４……中間カツプ、１４ａ……バーリン
グ。
FIG. 1 is a sectional view of a main part of a conventional example, and FIG. 2 is a sectional view of a main part showing an embodiment of the present invention. 12...G 3 electrode cup, 13...G 3 electrode bottom, 14...middle cup, 14a...burring.
Claims (1)
する電極の前記カツプ部とボトム部の間に、孔径
が該カツプ部のビーム通過孔の孔径より小さい電
子銃組立ガイド用バーリングを有した中間カツプ
を設けたことを特徴とするカラーブラウン管用電
子銃電極構体。1. An intermediate cup having an electron gun assembly guide bur ring having a hole diameter smaller than the diameter of the beam passage hole of the cup portion is provided between the cup portion and the bottom portion of the electrode forming the main lens, which is composed of a cup portion and a bottom portion. An electron gun electrode structure for a color cathode ray tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1167182A JPS58129730A (en) | 1982-01-29 | 1982-01-29 | Electron gun structure for color cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1167182A JPS58129730A (en) | 1982-01-29 | 1982-01-29 | Electron gun structure for color cathode-ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58129730A JPS58129730A (en) | 1983-08-02 |
| JPH0546043B2 true JPH0546043B2 (en) | 1993-07-12 |
Family
ID=11784443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1167182A Granted JPS58129730A (en) | 1982-01-29 | 1982-01-29 | Electron gun structure for color cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58129730A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5935951Y2 (en) * | 1978-08-11 | 1984-10-04 | 日本電気株式会社 | Electron gun electrode structure for cathode ray tube |
-
1982
- 1982-01-29 JP JP1167182A patent/JPS58129730A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58129730A (en) | 1983-08-02 |
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