JPS5894743A - Electromagnetic deflector - Google Patents
Electromagnetic deflectorInfo
- Publication number
- JPS5894743A JPS5894743A JP19328781A JP19328781A JPS5894743A JP S5894743 A JPS5894743 A JP S5894743A JP 19328781 A JP19328781 A JP 19328781A JP 19328781 A JP19328781 A JP 19328781A JP S5894743 A JPS5894743 A JP S5894743A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- electron gun
- magnetic field
- coil
- deflection
- 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.)
- Granted
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
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
- H01J29/702—Convergence correction arrangements therefor
- H01J29/703—Static convergence systems
Abstract
Description
【発明の詳細な説明】
本発明は、インライン形陰極線管の電磁偏向装置に関し
、特にエンノ・ンサー/シャント補正を有効に行うこと
のできる装置を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electromagnetic deflection device for an in-line cathode ray tube, and in particular provides a device that can effectively perform encoder/shunt correction.
一般に、陰極線管はフラット型になってきているために
、偏向中心から螢光面までの距離が中央より周辺部にな
るほど大きくなり、ビームコンバーセンスのずれは周辺
部はど大きくなる。しかしながら、最近の3電子銃イン
ライン型のカラー陰極線管においては、水平偏向磁界を
ビンクッション型にし垂直偏向磁界をバレル型にするこ
とにより、サイドビームR,Bを合致させて第1図のよ
うにR,Bのラスターを一致させ、更に、サイドビーム
R,BとセンタービームGのスレi、;i、12図のよ
うな陰極線管1の電子銃2の偏向コイル3側においてセ
ンタービームGの通過孔4Gの両側に設けた第3.4図
のような水平偏向ふきだし磁界を強めるエンハンサ−磁
性体6Gと、サイドビームR,Bの通過孔4R,4Bの
周囲に設けた垂直偏向ふきだし磁界を關めるシャント磁
性体5R。In general, cathode ray tubes are becoming more and more flat, so the distance from the center of deflection to the phosphor surface increases from the center toward the periphery, and the deviation in beam convergence becomes larger at the periphery. However, in recent three-electron in-line type color cathode ray tubes, the horizontal deflection magnetic field is made into a bottle-cushion type and the vertical deflection magnetic field is made into a barrel-type, so that the side beams R and B are aligned, as shown in Figure 1. The rasters of R and B are made to match, and the side beams R and B and the center beam G are aligned i; The enhancer magnetic body 6G, which strengthens the horizontal deflection balloon magnetic field as shown in Fig. 3.4, is provided on both sides of the hole 4G, and the vertical deflection balloon magnetic field is provided around the passage holes 4R and 4B of the side beams R and B. Shunt magnetic material 5R.
5Bにより合致させるようにして、ダイナミックコンバ
ーゼンス補正全不要にするようにしている。5B, thereby eliminating the need for any dynamic convergence correction.
6はスタティックコンバーゼンヌ装置である。6 is a static converzenne device.
ところが、この様に、偏向コイル3の後部からのふきだ
し磁界を利用した、エンハンサ−・シャント磁性体5G
、5R,6Bの効果によりサイドビームとセンタービー
ムの偏向量を調整してラスターを合致させる方式では、
電子銃2に取シ付ける磁性体sG 、csR,6Bの形
状や大きさを一旦決めると、その後における偏向コイル
3の設計仕様の変更は困難になり、あえて変更を実行す
るとセンタービームGとサイドビームR,Bの集中スれ
が生じて電子銃2の変更をしなければならなくなるとい
う問題を生じる。偏向コイル3の設計変更ハ、コンバー
ゼンスの改善や、ビンクッション補正の不要化、シール
ドケースの有無等によってしばしば生じてくるので、上
記の問題はきわめて重要である。However, in this way, the enhancer shunt magnetic material 5G using the balloon magnetic field from the rear of the deflection coil 3
, 5R, 6B effect to adjust the amount of deflection of the side beam and center beam to match the rasters,
Once the shape and size of the magnetic materials sG, csR, and 6B to be attached to the electron gun 2 are determined, it will be difficult to change the design specifications of the deflection coil 3. This causes a problem in that the concentration deviation of R and B occurs and the electron gun 2 has to be changed. The above-mentioned problem is extremely important because it often occurs due to changes in the design of the deflection coil 3, improvement of convergence, elimination of bottle cushion correction, presence or absence of a shield case, etc.
そこで、本発明はかかる従来の欠点を解消することので
きる装置を提供することを目的とするもので、偏向コイ
ルに磁性片を配置することにより電子銃に加わるふきだ
し磁界の強さを制御することができるようにして、偏向
コイルを変更したとき等でも電子銃の変更を必要としな
いようにしたことを特徴とするものである。Therefore, an object of the present invention is to provide a device that can eliminate such conventional drawbacks, and by arranging a magnetic piece in the deflection coil, the strength of the balloon magnetic field applied to the electron gun can be controlled. The present invention is characterized in that the electron gun does not need to be changed even when the deflection coil is changed.
以下、本発明の実施例につき第6〜¥図を参照して説明
する。第6図に本装置に用いる偏向ヨークを示しており
、7はその偏向コイルの開口部〔大径部〕、8はその後
部〔小径部〕、9は垂直コイルをトロイダルに捲線して
いるフェライトコア、10は小径部の水平コイルペンド
アップ収納用セパレータ部であり、11は磁性片12を
取付けるだめの溝部である。本装置の特徴とする磁性片
12は水平軸の左右2個所に偏向コイルの後部8に位置
する小径部セパレータ部1oに取シ付けて設ける。その
形状は、第6図のごとくL型aやコ型すあるいはこの両
者の複合型Cの磁性片12とし、これをアーム状に電子
銃2のエンハンサ−・シャント磁性体5G、5R,5B
に加わる磁界が変化するようにこの電子銃に近づくよう
に配置すると効果がある。Embodiments of the present invention will be described below with reference to FIGS. Figure 6 shows the deflection yoke used in this device, where 7 is the opening of the deflection coil [large diameter part], 8 is the rear part [small diameter part], and 9 is the ferrite coil around which the vertical coil is toroidally wound. The core 10 is a separator portion for storing a horizontal coil pend-up in a small diameter portion, and 11 is a groove portion in which a magnetic piece 12 is attached. The magnetic pieces 12 that characterize this device are attached to the small diameter separator portion 1o located at the rear portion 8 of the deflection coil at two locations on the left and right of the horizontal axis. As shown in Fig. 6, the magnetic piece 12 is L-type a, U-type S, or a combination of both types C, and the enhancer shunt magnetic members 5G, 5R, 5B of the electron gun 2 are arranged in an arm shape.
It is effective to place the electron gun close to the electron gun so that the magnetic field applied to it changes.
尚、磁性片12は、第7図の様に、小径部のセパレータ
部10の前あるいは後部に磁性片12の差し込み用の収
納溝部13を設けるようにしておくと、取付けや取外し
あるいは位置の調整ができて、多機種に使用することが
可能である。In addition, as shown in FIG. 7, the magnetic piece 12 can be attached, removed, or adjusted in position by providing a storage groove 13 for inserting the magnetic piece 12 in front or at the rear of the small-diameter separator part 10. It can be used in many different models.
第8図は偏向ヨークからの磁界によって生じる磁界分布
Gが電子銃2等に加わる状態を示しており、磁性片12
がない場合はG1で示しているようになるが、磁性片1
2を取付けると、後部ふきだし磁界が強調されてG2の
様な分布になり、電子銃2のエンハンサ−・シャント磁
性体に加わる磁界が増加し、センタービームをサイドビ
ームより偏向量が増大する方向に作用する。FIG. 8 shows the state in which the magnetic field distribution G generated by the magnetic field from the deflection yoke is applied to the electron gun 2, etc., and the magnetic piece 12
If there is no magnetic piece 1, it will be shown as G1.
2, the rear blown magnetic field is emphasized and becomes distributed like G2, the magnetic field applied to the enhancer shunt magnetic body of electron gun 2 increases, and the center beam is deflected more than the side beams. act.
この変化量は、磁性片12の大きさと形状により、自由
に選ぶことができ、偏向ヨークの設計仕様の変更が、セ
ンタービームと、サイドビームの偏向量をコントロール
しながら、可能にすることがで^る。The amount of change can be freely selected depending on the size and shape of the magnetic piece 12, making it possible to change the design specifications of the deflection yoke while controlling the amount of deflection of the center beam and side beams. ^ru.
以上のように、本発明によれば、エン・・ンサーあるい
はシャット磁性体を電子銃に設けてセンタービームとサ
イドビームとのコンバーゼンスを調整するようにした3
電子銃インライン形カラー陰極線管に適用する電磁偏向
コイルの後部に、水平軸上で左右にアーム状に磁性片を
配置して偏向コイル後部からのふき出し磁界を電子銃に
加える量を調整するようにしたので、偏向コイルや陰極
線管の設計仕様を変更したとき等のコンバーゼンス調整
を容易に行なうことができ、常に最良なコンバーゼンス
状態にすることのできる実用的効果の矢きい装置を得る
ことができるものである。As described above, according to the present invention, the electron gun is provided with an enhancer or a shut magnetic material to adjust the convergence between the center beam and the side beams.
At the rear of the electromagnetic deflection coil applied to the electron gun in-line color cathode ray tube, magnetic pieces are placed in the form of arms on the left and right on the horizontal axis to adjust the amount of magnetic field blown out from the rear of the deflection coil applied to the electron gun. As a result, convergence adjustment can be easily performed when the design specifications of the deflection coil or cathode ray tube are changed, and a device with practical effects that can always maintain the best convergence state can be obtained. It is something.
第1図は3電子銃インライン形カラー陰極線管における
ラスターを示す正面図、第2図は同陰極線管に従来の偏
向コイルを取り付けた状態を示す側面図、第3図はその
電子銃の斜視図、第4図はそのエン・・ンサー・シャン
ト磁性体部の拡大図、巨
ビ
j(
は同装置に用いる磁性片の斜視図、第7図a、bは同装
置に用いる偏向コイルの側面図および乎面図、第8図は
同装置における磁界分布を示す特性図である。
1・・・・・・3電子銃インライン形のカラー陰極線管
、2・・・・・・電子銃、5G・・・・・・エンハンサ
−磁性体、6R,5B・・・・・・シャント磁性体、7
・・・・・・開口部((大径部)、8・・・・・・後部
(小径部)、1o・・・・・・セパレータ部、11・・
・・・・溝部、12・・・・・・磁性片、13・・・・
・・収納溝部。
代理人の氏名 弁理士 中 尾 敏 男 ほか1基準
15Il
第 21
第3図
第4図
第6図
ン bFig. 1 is a front view showing a raster in a three-electron gun in-line color cathode ray tube, Fig. 2 is a side view showing a conventional deflection coil attached to the cathode ray tube, and Fig. 3 is a perspective view of the electron gun. , Fig. 4 is an enlarged view of the magnetic material part of the encoder shunt, and Fig. 7 is a perspective view of the magnetic piece used in the device, and Fig. 7 a and b are side views of the deflection coil used in the device. Figure 8 is a characteristic diagram showing the magnetic field distribution in the same device. 1...3 electron gun in-line type color cathode ray tube, 2...electron gun, 5G... ...Enhancer magnetic material, 6R, 5B... Shunt magnetic material, 7
......Opening part ((large diameter part), 8...Rear part (small diameter part), 1o...Separator part, 11...
...Groove, 12...Magnetic piece, 13...
・Storage groove. Name of agent: Patent attorney Toshio Nakao and 1 other criteria
15Il No. 21 Figure 3 Figure 4 Figure 6 b
Claims (3)
偏向コイル側にセンタービームとサイドビームとのコン
バーゼンス調整用のエンハンサ−あるいはツヤント磁界
調整用磁性体を設け、この磁性体に偏向コイルの後部か
らのふきだし磁界を加えるようにするとともに、水平軸
上において左右に上記垂直コイルの後部から上記電子銃
側ヘアーム状に磁性片を配設し、この磁性片によって上
記電子銃に加わる磁界を調整させるようにしたことを特
徴とする電磁偏向装置。(1) An enhancer for adjusting the convergence of the center beam and the side beams or a magnetic body for adjusting the sharp magnetic field is provided on the deflection coil side of the electron gun of the 3-electron gun in-line color cathode ray tube, and this magnetic body is attached to the rear part of the deflection coil. At the same time, a magnetic piece is arranged in the form of a hair arm on the electron gun side from the rear of the vertical coil on the left and right sides on the horizontal axis, and the magnetic field applied to the electron gun is adjusted by this magnetic piece. An electromagnetic deflection device characterized by:
型とした特許請求の範囲第1項記載の電磁偏向装置。(2) The electromagnetic deflection device according to claim 1, wherein the magnetic piece has an L-shape, a U-shape, or a combination thereof.
アップ部の収納用セパレータの水平軸左右に設けた差し
込み溝部に取付けた特許請求の範囲第1項記載の電磁偏
向装置。(3) The electromagnetic deflection device according to claim 1, wherein the magnetic pieces are attached to the insertion grooves provided on the left and right sides of the horizontal axis of the storage separator in the small-diameter pend-up portion of the horizontal coil of the deflection yoke.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19328781A JPS5894743A (en) | 1981-11-30 | 1981-11-30 | Electromagnetic deflector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19328781A JPS5894743A (en) | 1981-11-30 | 1981-11-30 | Electromagnetic deflector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5894743A true JPS5894743A (en) | 1983-06-06 |
JPH0161224B2 JPH0161224B2 (en) | 1989-12-27 |
Family
ID=16305405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19328781A Granted JPS5894743A (en) | 1981-11-30 | 1981-11-30 | Electromagnetic deflector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5894743A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6074459U (en) * | 1983-10-07 | 1985-05-25 | 三洋電機株式会社 | Electron beam control device |
JPS62103945A (en) * | 1985-10-30 | 1987-05-14 | Mitsubishi Electric Corp | Color cathode-ray tube |
US5530315A (en) * | 1993-07-06 | 1996-06-25 | Matsushita Electronics Corporation | Color cathode ray tube having magnetic members for mitigating effects of an external magnetic field along an axial direction of the in-line election gun |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5180123A (en) * | 1975-01-10 | 1976-07-13 | Tokyo Shibaura Electric Co | KARAAJUZO KANYOHENKOYOOKU |
JPS53118921A (en) * | 1977-03-28 | 1978-10-17 | Toshiba Corp | Color receiving unit |
JPS55142879A (en) * | 1979-04-25 | 1980-11-07 | Shigeru Kawakami | Latchhoperable bar handle for door |
JPS55157846A (en) * | 1979-05-29 | 1980-12-08 | Denki Onkyo Co Ltd | Deflecting yoke |
-
1981
- 1981-11-30 JP JP19328781A patent/JPS5894743A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5180123A (en) * | 1975-01-10 | 1976-07-13 | Tokyo Shibaura Electric Co | KARAAJUZO KANYOHENKOYOOKU |
JPS53118921A (en) * | 1977-03-28 | 1978-10-17 | Toshiba Corp | Color receiving unit |
JPS55142879A (en) * | 1979-04-25 | 1980-11-07 | Shigeru Kawakami | Latchhoperable bar handle for door |
JPS55157846A (en) * | 1979-05-29 | 1980-12-08 | Denki Onkyo Co Ltd | Deflecting yoke |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6074459U (en) * | 1983-10-07 | 1985-05-25 | 三洋電機株式会社 | Electron beam control device |
JPH0338934Y2 (en) * | 1983-10-07 | 1991-08-16 | ||
JPS62103945A (en) * | 1985-10-30 | 1987-05-14 | Mitsubishi Electric Corp | Color cathode-ray tube |
JPH0518219B2 (en) * | 1985-10-30 | 1993-03-11 | Mitsubishi Electric Corp | |
US5530315A (en) * | 1993-07-06 | 1996-06-25 | Matsushita Electronics Corporation | Color cathode ray tube having magnetic members for mitigating effects of an external magnetic field along an axial direction of the in-line election gun |
Also Published As
Publication number | Publication date |
---|---|
JPH0161224B2 (en) | 1989-12-27 |
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