JPS5894743A - Electromagnetic deflector - Google Patents

Electromagnetic deflector

Info

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
Application number
JP19328781A
Other languages
Japanese (ja)
Other versions
JPH0161224B2 (en
Inventor
Kazutoshi Segawa
瀬川　和利
Koji Miyajima
宮嶋　孝二
Akira Aoki
章 青木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP19328781A priority Critical patent/JPS5894743A/en
Publication of JPS5894743A publication Critical patent/JPS5894743A/en
Publication of JPH0161224B2 publication Critical patent/JPH0161224B2/ja
Granted legal-status Critical Current

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

PURPOSE:To make convergence adjustment ever so easier, by disposing magnetic pieces at the backside of an electromagnetic deflecting coil in arm form, right and left over a horizontal axis, while making strength of an effusion magnetic field imposed on an electron gun controllable. CONSTITUTION:Each of two magnetic pieces 12 is installed on a horizontal axis at two spots, right and left, after being attached to a small diametral part of a separator element 10 located at the backside of a deflecting coil. In addition, each of their forms is set to be either L-shaped or U-shaped or both, through which they are disposed so drawing close to an electron gun in arm form so as to cause the magnetic field imposed on an enhance shunt magnetic substance of the electron gun to be altered. Likewise, these magnetic pieces 12 can be attached or detached and, what is more, adjustable for their positions in an easy manner when a hold groove part for magnetic piece insertion use is provided in front and in the rear of the small diametral part's separator element 10, permitting this device to be used in a wide variety of machinery and equipment. In this way, optimum convergence conditions can be secured at all times.

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.

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【特許請求の範囲】[Claims] （１）３電子銃インライン型カラー陰極線管の電子銃の
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: （２）磁性片の形状をＬ型、コ型あるいはそれらの複合
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. （３）磁性片を偏向ヨークの水平コイルの小径部ペンド
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.
JP19328781A 1981-11-30 1981-11-30 Electromagnetic deflector Granted JPS5894743A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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