JPS60200442A - Deflecting yoke - Google Patents

Deflecting yoke

Info

Publication number
JPS60200442A
JPS60200442A JP5425884A JP5425884A JPS60200442A JP S60200442 A JPS60200442 A JP S60200442A JP 5425884 A JP5425884 A JP 5425884A JP 5425884 A JP5425884 A JP 5425884A JP S60200442 A JPS60200442 A JP S60200442A
Authority
JP
Japan
Prior art keywords
magnetic
vertical
magnetic field
deflection
misconvergence
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
JP5425884A
Other languages
Japanese (ja)
Other versions
JPH0427660B2 (en
Inventor
Noritaka Okuyama
宣隆 奥山
Toshiharu Shimizu
清水　敏治
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5425884A priority Critical patent/JPS60200442A/en
Publication of JPS60200442A publication Critical patent/JPS60200442A/en
Publication of JPH0427660B2 publication Critical patent/JPH0427660B2/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
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE:To make the misconvergence of a longitudinal raster compensable without any deterioration in vertical deflection sensitivity, by forming a concave part partially on a molding surface of a horizontal deflecting coil, while installing a magnetic material block in a void to be surrounded by this concave part. CONSTITUTION:Each concave part is installed on a molding surface of a horizontal deflecting coil, while two void parts 14 to be surrounded by these concave parts comprises a center line 12 in a horizontal direction each, and a magnetic material block 15 of a ferrite piece or the like is being inserted in each of these void parts 14. With this constitution, both vertical and horizontal deflecting magnetic fields are varied to some extent, but as for a variation in misconvergence attributable to a variation in the vertical deflecting magnetic field, it comes to the same as a compensation effect by means of the conventional magnetic piece and, what is more, the magnetic material block 15 performs such action as strengthening the vertical deflecting magnetic field in consequence so that vertical deflection sensitivity is thus improved.

Description

【発明の詳細な説明】 〔発明の利用分野〕 不発明は、インライン配列の多電子銃を有するカラーブ
ラウン管に用いて好適な偏向ヨークに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a deflection yoke suitable for use in a color cathode ray tube having multiple electron guns arranged in-line.

〔発明の背景〕[Background of the invention]

インライン配列の多電子銃を有するカラーブラウン管に
用いるセルフコンバーゼンス偏向ヨークにおいては、周
知のように、水平偏向コイルによる水平偏向磁界全ピン
クッション形磁界に、また、垂直偏向コイルによる水平
偏向磁界をバレル形磁界にすることにより、螢光面にお
けるコンバーゼンス補正を行なっている。さらに、画面
上のラスタの糸巻歪を低減するために垂直偏向磁界を螢
光面側でビンクッション形に形成する場合には、コンバ
ーゼンス補正のために、垂直偏向磁界は、電子銃側で強
いバレル形磁界とする必要がある。As is well known, in the self-convergence deflection yoke used for color cathode ray tubes having multiple electron guns in an in-line arrangement, the horizontal deflection magnetic field by the horizontal deflection coil is converted into a total pincushion magnetic field, and the horizontal deflection magnetic field by the vertical deflection coil is converted into a barrel-shaped magnetic field. Convergence correction on the fluorescent surface is performed by applying a magnetic field. Furthermore, when the vertical deflection magnetic field is formed into a bottle cushion shape on the fluorescent surface side to reduce pincushion distortion of the raster on the screen, the vertical deflection magnetic field is formed into a strong barrel shape on the electron gun side for convergence correction. It is necessary to have a shaped magnetic field.

第１図はかかる従来の偏向ヨークの一例を示す斜視図で
あって、１は偏向ヨーク、２は水平偏向コイル、３は垂
直偏向コイル、４はコア。FIG. 1 is a perspective view showing an example of such a conventional deflection yoke, in which 1 is a deflection yoke, 2 is a horizontal deflection coil, 3 is a vertical deflection coil, and 4 is a core.

５はセパレータ、６はグリップであり、また、電子銃側
、螢光面側を夫々矢印２０．２１で表わしている。5 is a separator, 6 is a grip, and the electron gun side and fluorescent surface side are indicated by arrows 20 and 21, respectively.

第２図は第１図の偏向ヨークの電子銃側の断面図であっ
て、７は垂直偏向磁界を示す磁力線８は磁性体片、９Ｒ
は赤色用電子ビーム、９Ｂは青色用電子ビーム、１０は
水平方向の偏向力。FIG. 2 is a cross-sectional view of the deflection yoke shown in FIG.
9B is the electron beam for red color, 9B is the electron beam for blue color, and 10 is the horizontal deflection force.

１１は垂直方向の中心線、　２３Ｒ、２３Ｇ　、　２３
Ｂは夫々赤色用、緑色用、青色用電子銃であり、第１図
に対応する部分には同一符号をつけている。11 is the vertical center line, 23R, 23G, 23
B is an electron gun for red, green, and blue, respectively, and parts corresponding to those in FIG. 1 are given the same reference numerals.

紀１図、第２図において、垂直偏向コイルの内（ｉｌｌ
で垂直方向中心線１１を含む位置に磁性体片８が設けら
れ、この磁性体片８によって磁力線７が引きつけられる
。このために、垂直偏向磁界のバレル形状が強められ、
その磁力線７の傾きによって電子ビームに作用する水平
方向の偏向力１０は、赤色用電子ビーム９Ｒに対しては
右方向、青色用電子ビーム９Ｂに対しては左方向に働ら
く。この傾向は、画面のコーナ部の偏向時はど電子ビー
ムが垂直偏向コイル３に接近するだめ、より強くなる。In Figures 1 and 2, the inside of the vertical deflection coil (ill
A magnetic piece 8 is provided at a position including the vertical center line 11, and the magnetic force lines 7 are attracted by the magnetic piece 8. For this reason, the barrel shape of the vertical deflection magnetic field is strengthened,
A horizontal deflection force 10 acting on the electron beam due to the inclination of the magnetic lines of force 7 acts to the right on the red electron beam 9R and to the left on the blue electron beam 9B. This tendency becomes stronger as the electron beam approaches the vertical deflection coil 3 when deflecting the corner of the screen.

ただし、ここでは、螢光面側からみて、左から右へ青色
用電子銃２３Ｂ緑色用電子銃２３Ｇ、赤色用電子銃２５
Ｒの順で配列されているものとする。However, when viewed from the fluorescent surface side, from left to right, the electron gun for blue 23B, the electron gun for green 23G, and the electron gun for red 25 are shown.
It is assumed that they are arranged in the order of R.

そこで、磁性体片８の作用により、第６図（ｂ）に示す
よう々縦線ラスタのコンバーゼンス変化が生じ、第６図
（ａ）に示すような垂直偏向磁界を螢光面側でビンクッ
ション形にしたことによっテ生スるミスコンバーゼンス
と相殺シ、コンバーゼンスの補正をすることができる。Therefore, due to the action of the magnetic piece 8, a convergence change of the vertical line raster occurs as shown in FIG. 6(b), and the vertical deflection magnetic field as shown in FIG. By changing the shape, it is possible to cancel out the misconvergence that occurs and correct the convergence.

しかし、このように、磁性体片８による補正では、この
磁性体片８が垂直偏向磁界を弱めてしまうために、垂直
偏向感度が悪化するという欠点がある。However, the correction using the magnetic piece 8 has the disadvantage that the vertical deflection sensitivity deteriorates because the magnetic piece 8 weakens the vertical deflection magnetic field.

一方、上記の方法では補正量が不足する場合には、さら
に、糸巻歪を低減するために、第４図に示すように、偏
向ヨーク１の螢光面側であって、水平方向の中心線１２
を含む位置に永久磁石１３を設けるようにしだ方法が併
用される。On the other hand, if the amount of correction is insufficient in the above method, in order to further reduce the pincushion distortion, as shown in FIG. 12
A shida method is also used to provide the permanent magnet 13 at a position that includes.

しかし、中心線１２上では、永久磁石１３に近い方の電
子ビーム９Ｒが電子ビーム９Ｂよりも強い水平方向の偏
向力１０ヲ受け、しかも、コーナ部に偏向されるに従っ
て水平方向の偏向力１０を生ずる磁力線２２の向きが反
転する方向に変化し永久磁石に近い方の電子ビーム９Ｒ
はど変化が大きいから、コー丈部の偏向時には、永久磁
石１３から遠い方の電子ビーム９Ｂが電子ビーム９Ｒよ
りも強い偏向力を受けてしまい、第５図に示すようなパ
ターンの縦線ラスタ１８Ｒ，１８Ｂ・　３　・ のミスコンバーゼンス変化が生ずるという欠点があった
。However, on the center line 12, the electron beam 9R closer to the permanent magnet 13 receives a horizontal deflection force 10 stronger than the electron beam 9B, and moreover, as it is deflected toward the corner, it receives a horizontal deflection force 10. The direction of the generated magnetic lines of force 22 changes to the opposite direction, and the electron beam 9R is closer to the permanent magnet.
Because of the large change in the height of the coat, the electron beam 9B, which is farther from the permanent magnet 13, receives a stronger deflection force than the electron beam 9R when deflecting the length of the coat, resulting in a vertical line raster pattern as shown in FIG. There was a drawback that a misconvergence change occurred between 18R and 18B.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、上記従来技術の欠点を除き、カラーブ
ラウン管の画面上に生ずる糸巻歪を補正するように形成
された磁界に伴なう縦線ラスタのミスコンバーゼンスを
、垂直偏向感度を劣化させることなしに補正することが
できるようにした偏向ヨークを提供するにある。It is an object of the present invention to eliminate the drawbacks of the above-mentioned prior art, correct misconvergence of vertical line rasters caused by a magnetic field formed to correct pincushion distortion occurring on the screen of a color cathode ray tube, and reduce vertical deflection sensitivity. The object of the present invention is to provide a deflection yoke that can be corrected without causing damage.

〔発明の概要〕[Summary of the invention]

この目的を達成するために、本発明は、水平偏向コイル
の成形面に部分的に四部を形成し、との凹部に囲まれる
空隙中に磁性体ブロックを設け、該磁性体ブロックによ
って偏向ヨーク内部の磁界分布を部分的に変化させるよ
うにした点に特徴がある。In order to achieve this object, the present invention partially forms four parts on the molded surface of the horizontal deflection coil, and provides a magnetic block in the gap surrounded by the concave part, and the magnetic block allows the inside of the deflection yoke to be The feature is that the magnetic field distribution is partially changed.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の実施例全図面について説明する。 Hereinafter, all drawings of embodiments of the present invention will be described.

第６図（ａ）　、　（ｂ）は本発明による偏向ヨークの
−・　４　・ 実施例を示す要部側面部および正面図であって、１４は
空隙部、１５け磁性体ブロックであり、第１図に対応す
る部分には同一符号をつけている。6(a) and 6(b) are side views and front views of main parts of a deflection yoke according to a fourth embodiment of the present invention, in which numeral 14 represents a gap, numeral 15 represents a magnetic material block; Parts corresponding to those in Figure 1 are given the same reference numerals.

第６図（ａ）　、　（ｂ）において、水平偏向コイル２
の成形面に凹部が設けられ、これら四部によって囲まれ
る２つの空隙部１４は夫々水平方向の中心線１２全含み
、夫々の空隙部１４にフェライトピースなどの磁性体ブ
ロック１５ヲ挿入している。これら磁性体ブロック１５
は、磁路の磁気抵抗全減少させて磁束を集中する作用を
有しているから垂直偏向磁界に対１〜、水平方向の中心
線−ヒの磁界音強める。In Fig. 6(a) and (b), horizontal deflection coil 2
A concave portion is provided in the molding surface, and two void portions 14 surrounded by these four portions each include the entire center line 12 in the horizontal direction, and a magnetic block 15 such as a ferrite piece is inserted into each of the void portions 14. These magnetic blocks 15
Since it has the effect of reducing the total magnetic resistance of the magnetic path and concentrating the magnetic flux, it intensifies the magnetic field sound between the vertical deflection magnetic field and the center line in the horizontal direction.

第７図は第６図の偏向ヨークの断面図であって、１６は
水平偏向磁界を示す磁力線であり、第２図、第６図に対
応する部分には同一符号をつ。FIG. 7 is a sectional view of the deflection yoke shown in FIG. 6, in which 16 indicates lines of magnetic force indicating a horizontal deflection magnetic field, and portions corresponding to those in FIGS. 2 and 6 are given the same reference numerals.

けている。It's on.

第７図において、磁性体ブロック１５の上記の作用によ
り、磁力線７は中心線１２の近傍で密となり、垂直偏向
磁界はバレル形となる。この結果、第２図の磁性片８を
設けた従来技術と同様に、第６図（ｂ）で示すような縦
線ラスタのミスコンバーゼンスが生ずる。In FIG. 7, due to the above-described action of the magnetic block 15, the lines of magnetic force 7 become dense near the center line 12, and the vertical deflection magnetic field becomes barrel-shaped. As a result, misconvergence of vertical line rasters as shown in FIG. 6(b) occurs, similar to the prior art in which the magnetic piece 8 of FIG. 2 is provided.

また、水平偏向磁界については、磁力線１６が磁性体ブ
ロック１５に引かれ、磁性体ブロック１５に近いほど磁
束密度が小さくなるから、磁性体ブロック１５から離れ
た電子ビーム９Ｂは、電子ビーム９Ｒが存在する磁束密
度よりも大きな磁束密度の空間中にあり、このために、
電子ビーム９Ｂにはより強い水平方向の偏向力１ｏが作
用し、また、上下方向に偏向されるに従ってこれら電子
ビーム９Ｂ、９’Ｒに作用する水平方向の偏向力１０の
差は減少する。したがって、第８図に示すような縦線ラ
スタのミスコンバーゼンスが生ずる。Regarding the horizontal deflection magnetic field, the lines of magnetic force 16 are drawn to the magnetic block 15, and the closer the magnetic block 15 is, the smaller the magnetic flux density becomes. is in a space with a magnetic flux density greater than that of the
A stronger horizontal deflection force 1o acts on the electron beam 9B, and the difference in the horizontal deflection force 10 acting on the electron beams 9B and 9'R decreases as the electron beams 9B and 9'R are deflected in the vertical direction. Therefore, misconvergence of vertical line rasters as shown in FIG. 8 occurs.

要するに、この実施例では、磁性体ブロック１５ヲ設け
たことにより、垂直偏向磁界と水平偏向磁界とは変化す
るが、垂直偏向磁界の変化にかかるミスコンバーゼンス
の変化としては、第２図に示す従来技術の磁性片８によ
るのと同様の補正効果と同様になり、また、磁性体ブロ
ック１５は垂直偏向磁界を強める作用をするので、上記
従来技術の磁性片８を用いた場合よりも、垂直偏向感度
は向」ニする。In short, in this embodiment, by providing the magnetic material block 15, the vertical deflection magnetic field and the horizontal deflection magnetic field change, but the change in misconvergence related to the change in the vertical deflection magnetic field is different from that shown in FIG. The correction effect is similar to that obtained by using the magnetic piece 8 of the prior art technology, and since the magnetic block 15 acts to strengthen the vertical deflection magnetic field, the vertical deflection is lower than when using the magnetic piece 8 of the prior art technology. Sensitivity is positive.

また、との実施例は、水平偏向磁界の変化にかかわるミ
スコンバーゼンスの変化は第８図に示すように々るが、
このために、第４図に示した従来技術において、永久磁
石１３によって糸巻歪を低減するようにしたときに生ず
る第５図に示すような縦線ラスタのミスコンバーゼンス
を低減することができる。In addition, in the embodiment, the change in misconvergence related to the change in the horizontal deflection magnetic field is as shown in FIG.
For this reason, it is possible to reduce the misconvergence of the vertical line raster as shown in FIG. 5, which occurs when pincushion distortion is reduced by the permanent magnet 13 in the prior art shown in FIG.

第９図は本発明による偏向ヨークの他の実施例を示す断
面図であって、第２図および第７図に対応する部分には
同一符号をつけている。FIG. 9 is a sectional view showing another embodiment of the deflection yoke according to the present invention, and parts corresponding to FIGS. 2 and 7 are given the same reference numerals.

この実施例は、第６図および第７図に示した実施例に、
さらに、第２図に示した従来技術のような磁性片８を設
けたものである。This embodiment is similar to the embodiment shown in FIGS. 6 and 7.
Furthermore, a magnetic piece 8 like the prior art shown in FIG. 2 is provided.

第９図において、垂直偏向磁界のバレル形状は磁性片８
と磁性体ブロック１５によって強められ、第３図（ｂ）
に示すようなミスコンバーゼンスの補正量を増加させる
ことができる。この場合・　７　・ 磁性片８によって垂直偏向感度は弱まるが、磁性体ブロ
ック１５によって垂直偏向感度は強まりこの結果、夫々
による垂直偏向感度の増減が相殺されて全体とし７ての
垂直偏向感度は変化しないＯ 第１０図は本発明による偏向ヨークのさらに他の実施例
を示す断面図であって、１７は補助コイルであり、第７
図に対応する部分には同一符号をつけている。In Figure 9, the barrel shape of the vertical deflection magnetic field is the magnetic piece 8.
and is strengthened by the magnetic block 15, as shown in FIG. 3(b).
The misconvergence correction amount as shown in can be increased. In this case, 7. The vertical deflection sensitivity is weakened by the magnetic piece 8, but the vertical deflection sensitivity is strengthened by the magnetic block 15, and as a result, the increases and decreases in vertical deflection sensitivity due to each are canceled out, and the vertical deflection sensitivity as a whole 7 changes. No O FIG. 10 is a sectional view showing still another embodiment of the deflection yoke according to the present invention, in which 17 is an auxiliary coil;
Parts corresponding to the figures are given the same reference numerals.

第１０図において、先の実施例と同様に、水平偏向コイ
ル２の成形面に形成した凹部に囲まれる空隙部と、水平
偏向コイル２とコア４との間の空隙部とにまたがるよう
に、磁性体ブロック１５を配性し、この磁性体ブロック
１５の水平偏向コイル２とコア４の間にある空隙部に、
補助ツーイル１フヲ巻きつけている。これら補助コイル
１７は、第１１図に示すように、垂直偏向コイル３の巻
線と直列に接続され、垂直偏向磁界を強める方向に磁界
を発生する。このために、磁性体ブロック１５の付近で
垂直偏向磁界のバレル形状が・　８　・ さらに強まり、第６図（ａ）に示すようなミスコンバー
ゼンスの補正量がさらに増加する。In FIG. 10, as in the previous embodiment, a gap surrounded by a recess formed in the molded surface of the horizontal deflection coil 2 and a gap between the horizontal deflection coil 2 and the core 4 are covered. A magnetic block 15 is arranged, and in the gap between the horizontal deflection coil 2 and the core 4 of the magnetic block 15,
One auxiliary tool is wrapped around it. These auxiliary coils 17 are connected in series with the windings of the vertical deflection coil 3, as shown in FIG. 11, and generate a magnetic field in a direction that strengthens the vertical deflection magnetic field. For this reason, the barrel shape of the vertical deflection magnetic field is further strengthened in the vicinity of the magnetic block 15, and the amount of correction for misconvergence as shown in FIG. 6(a) is further increased.

なお、第６図および第７図に示した実施例における磁性
体ブロック１５の有無による特性変化の実測例を示すと
、２１形９０度側向の偏向ヨークにおいて、寸法が５　
Ｘ　５　Ｘ２０ＷＩＩ＋で比透磁率が６００のフェライ
トピースを磁性体ブロック１５とし、これを水平偏向コ
イル２の後端から螢光面側の水平偏向コイル２のコイル
長（７０，５ｍｍ　）の約３４チの位置に付加すること
により、垂直偏向感度が７．８チ向上し、また、ミスコ
ンバーゼンスの変化は、第６図（ｂ）に示すラスタパタ
ーンと第８図に示すラスタパターンとを合成した第１２
図に示すラスタパターンとなり、従来、偏向ヨークに生
ずる第３図（ａ）に示すラスタパターンと第５図に示す
ラスタパターンとが合成されたミスコンバーゼンスを相
殺して補正することができる。第１２図におけるミスコ
ンバーゼンス変化の実測値を次の表に示す。In addition, to show an actual measurement example of the characteristic change depending on the presence or absence of the magnetic block 15 in the embodiment shown in FIGS.
A ferrite piece with a relative magnetic permeability of 600 and X 5 The vertical deflection sensitivity is improved by 7.8 inches by adding it to the position of , and the change in misconvergence is as follows: 12
The raster pattern shown in the figure is obtained, and the misconvergence caused by combining the raster pattern shown in FIG. 3(a) and the raster pattern shown in FIG. 5, which conventionally occurs in the deflection yoke, can be offset and corrected. The actual measured values of the misconvergence change in FIG. 12 are shown in the following table.

〔表〕〔table〕

〔発明の効果〕 以上説明したように、本発明によれば、磁性体ブロック
を水平方向の中心線を含む位置に付加するだけで構成を
格別複雑にすることなく、垂直仰向感度の劣化を防いで
縦線ラストのミスコンバーゼンスを補正することができ
、また、糸巻歪を低減するために付加された永久磁石に
よって生ずる縦線ラスタのミスコンバーゼンスをも補正
することができ、上記従来技術の欠点を除いて優れた機
能の偏向ヨークを提供することができる。[Effects of the Invention] As explained above, according to the present invention, deterioration of vertical sensitivity can be prevented without complicating the configuration by simply adding magnetic blocks at positions including the horizontal center line. The misconvergence of the vertical line raster caused by the permanent magnet added to reduce pincushion distortion can also be corrected. Except for the excellent features of the deflection yoke.

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

第１図は従来の偏向ヨークの一例を示す斜視図、第２図
はその電子銃側の断面図、第３図（ａ）は垂直偏向磁界
をビンクッション形状にしたことによる縦線ラスタのミ
スコンバーゼンスｆ示すパターン図、第３図（ｂ）は第
２図の磁性片による縦線ラスタのコンバーゼンス変化に
示すパターン図、第４図は従来の偏向ヨークの他の例を
示す正面図、第５図は第４図の永久磁石による縦線ラス
タのミスコンバーゼンス変化を示すパターン図、第６図
（ａ）　、　（ｂ）夫々は本発明による偏向ヨークの一
実施例を示す要部側面図および正面図、第７図はその断
面図、第８図は第７図の磁性体ブロックが水平偏向磁界
に作用して生ずる縦線ラスタのミスコンバーゼンス変化
を示すパターン図、第９図は本発明による偏向ヨークの
他の実施例を示す断面図、第１０図は本発明による偏向
ヨークのさらに他の実施例を示す断面図、第１１図は第
１０図の各コイル間の接続関係を示す要部分解図、第１
２図は磁性体ブロックの付加による縦線ラスタのミスコ
ンバーゼンス変化の実測例金示すパターン図である。 ・１１　・ １・・・偏向ヨーク　２・・・水平偏向コイル３・・・
垂直偏向コイル　４・・・コア７・・・垂直偏向磁界の
磁力線 ８・・・磁性片 ９Ｒ，９Ｂ、９Ｇ・・・電子ビーム １２・・・水平方向の中心線 １４・・・空隙部　１５・・・磁性体ブロック１６・・
・水平偏向磁界の磁力線 １７・・・補助コイル 代理人弁理士　高　橋　明　夫 ・１２　・ 第Ｂ図　第９図 署ＩＯ図 ３ζ≧シ鉛ζに７゜ ＄１１目 第１ｚ図 ！＋　７７１２Fig. 1 is a perspective view showing an example of a conventional deflection yoke, Fig. 2 is a cross-sectional view of the electron gun side, and Fig. 3(a) shows an error in the vertical line raster due to the vertical deflection magnetic field having a bottle cushion shape. FIG. 3(b) is a pattern diagram showing the convergence change of the vertical line raster due to the magnetic piece in FIG. 2. FIG. 4 is a front view showing another example of the conventional deflection yoke. The figure is a pattern diagram showing the misconvergence change of the vertical line raster due to the permanent magnet in Figure 4, and Figures 6 (a) and (b) are a side view and a front view of the main part, respectively, showing an embodiment of the deflection yoke according to the present invention. 7 is a cross-sectional view thereof, FIG. 8 is a pattern diagram showing the misconvergence change of the vertical line raster caused by the magnetic material block of FIG. 7 acting on the horizontal deflection magnetic field, and FIG. 9 is the deflection according to the present invention. 10 is a sectional view showing still another embodiment of the deflection yoke according to the present invention; FIG. 11 is a main part exploded showing the connection relationship between the coils in FIG. 10. Figure, 1st
FIG. 2 is a pattern diagram showing an actual measurement example of a change in misconvergence of a vertical line raster due to the addition of a magnetic block.・１１ ・ 1... Deflection yoke 2... Horizontal deflection coil 3...
Vertical deflection coil 4... Core 7... Lines of magnetic force of vertical deflection magnetic field 8... Magnetic pieces 9R, 9B, 9G... Electron beam 12... Horizontal center line 14... Gap portion 15. ...Magnetic block 16...
・Magnetic field line 17 of horizontal deflection magnetic field...Patent attorney for auxiliary coil Akio Takahashi ・12 ・Figure B Figure 9 Station IO Figure 3 ζ ≥ Si lead ζ 7° $11 Eye Figure 1z! +7712

Claims (1)

【特許請求の範囲】[Claims] インライン配列の多電子銃を有するカラーブラウン管に
用いる偏向ヨークにおいて、サドル形水平偏向コイルの
水平方向中心線金倉む位置に凹形の成形面を形成し、該
成形面で囲まれる空隙部に磁性体ブロックの一部または
全部を挿入して設け、磁界分布を部分的に変形させるこ
とを特徴とする偏向ヨーク。In a deflection yoke used for a color cathode ray tube having multiple electron guns in an in-line arrangement, a concave molded surface is formed at a position between the horizontal center line of the saddle-shaped horizontal deflection coil, and a magnetic material is filled in the gap surrounded by the molded surface. A deflection yoke characterized in that a part or all of a block is inserted and provided to partially deform the magnetic field distribution.
JP5425884A 1984-03-23 1984-03-23 Deflecting yoke Granted JPS60200442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5425884A JPS60200442A (en) 1984-03-23 1984-03-23 Deflecting yoke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5425884A JPS60200442A (en) 1984-03-23 1984-03-23 Deflecting yoke

Publications (2)

Publication Number Publication Date
JPS60200442A true JPS60200442A (en) 1985-10-09
JPH0427660B2 JPH0427660B2 (en) 1992-05-12

Family

ID=12965530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5425884A Granted JPS60200442A (en) 1984-03-23 1984-03-23 Deflecting yoke

Country Status (1)

Country Link
JP (1) JPS60200442A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030010902A (en) * 2001-07-27 2003-02-06 삼성전기주식회사 Deflection york

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030010902A (en) * 2001-07-27 2003-02-06 삼성전기주식회사 Deflection york

Also Published As

Publication number Publication date
JPH0427660B2 (en) 1992-05-12

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