JPS62154441A - Deflecting yoke device - Google Patents

Deflecting yoke device

Info

Publication number
JPS62154441A
JPS62154441A JP29411685A JP29411685A JPS62154441A JP S62154441 A JPS62154441 A JP S62154441A JP 29411685 A JP29411685 A JP 29411685A JP 29411685 A JP29411685 A JP 29411685A JP S62154441 A JPS62154441 A JP S62154441A
Authority
JP
Japan
Prior art keywords
deflection
coils
magnetic field
coil
saddle
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
JP29411685A
Other languages
Japanese (ja)
Other versions
JP2549836B2 (en
Inventor
Michio Ogasa
小笠　道夫
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP60294116A priority Critical patent/JP2549836B2/en
Publication of JPS62154441A publication Critical patent/JPS62154441A/en
Application granted granted Critical
Publication of JP2549836B2 publication Critical patent/JP2549836B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To make such a convergence characteristic that is favorable in a side beam securable, by installing a second deflecting device generating a deflecting magnetic field. CONSTITUTION:A ring magnetic substance 9 is made up of connecting two semicircular magnetic substances 9a as one body with a core clip 9b. A toroidal coils 10 is constituted of a pair of first coils 11 and 12 to be wound in a sense strengthening a vertical deflecting magnetic field at parts of top and bottom sides centering on a vertical axis Y passing through a tube axis Z, and two pairs of second coils 13, 14 and 15, 16 being wound in reverse against these coils 11 and 12 at both-direction sides of the ring magnetic substance 9 so as to hold a hold a horizontal axis X passing through the tube axis Z and to be opposed. A deflecting device 7 is regulated its current-energization quantity by a variable resistor VR connected to a saddle type vertical deflecting coil 4s, forming a deflecting magnetic filed having a six poles, and three electron beams B, G and Rare predeflected whereby an incident position and an incident angle to an S/S type deflecting yoke 3 are regulated.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、インフィン形電子銃を有するカラー陰極線
管の偏向ヨーク装置に関し、詳しくはミスコンパーゼン
スヲ補正したサドル−サドμ形偏向ヨーク装置に関する
。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a deflection yoke device for a color cathode ray tube having an infin type electron gun, and more particularly to a saddle-sad μ-type deflection yoke device that corrects miscomparison. .

〔従来の技術〕[Conventional technology]

従来、インフィン形の電子銃を有するカラー陰極線管（
以下、ｌ’−ＣＲＴＪという。）に装着される偏向ヨー
クのコイルの巻回形式には、サドル形と、トロイダル形
とがある。一般に、水平偏向フィルには、磁界分布の形
成が容易であるサドル形のコイルが用いられ、垂直偏向
コイルには巻回が容易なトロイダル形コイルか、あるい
は、サドル形コイルが用いられている。偏向ヨークのタ
イプは、水平偏向コイ〃と垂直偏向コイルの巻回形式の
組合せＫより、サド〃−トロイダρ形偏向ヨーク（以下
、Ｓ／Ｔ形偏向ヨークと略記する。）とサドμｍサドμ
形偏向ヨーク（以下、Ｓ／Ｓ形偏向ヨークと略記する。Conventionally, a color cathode ray tube (
Hereinafter, it will be referred to as l'-CRTJ. ) There are two types of coil windings for the deflection yoke: saddle type and toroidal type. Generally, a saddle-shaped coil, which allows easy formation of magnetic field distribution, is used for the horizontal deflection filter, and a toroidal-shaped coil, which is easy to wind, or a saddle-shaped coil is used for the vertical deflection coil. The types of deflection yokes are the Sado-Toroida ρ type deflection yoke (hereinafter abbreviated as S/T type deflection yoke) and the SAD μm SAD μ type, based on the combination K of the winding format of the horizontal deflection coil and the vertical deflection coil.
type deflection yoke (hereinafter abbreviated as S/S type deflection yoke).

）とに分類されている。).

第ｘｚ図（ａ）は、いわゆるセルコンパーゼ　ンスタイ
プの偏向ヨークにおいて一般的に発生するサイドビーム
のミスコンバーゼンスパターンを示す図、同図（ｂ）は
その第１象限の拡大図である。FIG. xz (a) is a diagram showing a side beam misconvergence pattern that generally occurs in a so-called cell convergence type deflection yoke, and FIG. 2 (b) is an enlarged view of the first quadrant.

従来、サイドビームのミスコンバーゼンスは。Conventionally, side beam misconvergence is.

第１２図中）のように、垂直偏向磁界が関与しないＸＨ
ミスコンバーゼンスの補正は、水平偏向コイルの磁界分
布によって行ない、水平偏向磁界が関与しないＹＨのミ
スコンバーゼンスの補正は、垂直偏向コイ〃の磁界分布
によって行なっている。As shown in Fig. 12), XH in which the vertical deflection magnetic field is not involved
Misconvergence is corrected by the magnetic field distribution of the horizontal deflection coil, and YH misconvergence, which does not involve the horizontal deflection magnetic field, is corrected by the magnetic field distribution of the vertical deflection coil.

ぞして、水平偏向磁界と垂直偏向磁界の両方の磁界の合
成によって発生する画面四隅に於ける水平フィンのＰＱ
ｖミスコンバーゼンスの補正は、水平偏向磁界の中心位
置と、垂直偏向磁界の中心位置とをＣＲＴの管軸２方向
にずらせる手法をとっている。Therefore, the PQ of the horizontal fins at the four corners of the screen generated by the combination of both the horizontal deflection magnetic field and the vertical deflection magnetic field.
Correction of v misconvergence is performed by shifting the center position of the horizontal deflection magnetic field and the center position of the vertical deflection magnetic field in two directions along the tube axis of the CRT.

第１３図は従来のＳ／Ｔ形偏向ヨーク（３）を装着した
カラー陰Ｗ線管（１）の側面図で、（２）はインツイン
形電子ｔＬ（４Ｔ）はトロイダル形垂直偏向コイ／’％
（５）はサドル形水平偏向コイルで、垂直偏向コイＮ（
４Ｔ）の位置を管軸２方向に移動させ、四隅の合成磁界
を調整してＰＱｖミスコンバーゼンスを減じるようにし
ている。Figure 13 is a side view of a color shadow W-ray tube (1) equipped with a conventional S/T type deflection yoke (3), and (2) is a side view of a color shadow W-ray tube (1) equipped with a conventional S/T type deflection yoke (3). '%
(5) is a saddle-shaped horizontal deflection coil, and vertical deflection coil N (
4T) is moved in two directions along the tube axis, and the combined magnetic field at the four corners is adjusted to reduce PQv misconvergence.

しかしながら、サドル形の垂直コイルを有する偏向ヨー
クでは、わたシ線部を有するという構造上の制約から、
垂直偏向コイ／Ｌ／（４Ｔ）の移動可能な量が制限され
るため、磁界分布の形成が容易である等の利点を持ちな
がら、各種のＣＲＴサイズへの適用が困難である。However, with a deflection yoke having a saddle-shaped vertical coil, due to the structural constraint of having a crimp line,
Since the movable amount of the vertical deflection coil /L/(4T) is limited, it is difficult to apply to various CRT sizes, although it has advantages such as easy formation of magnetic field distribution.

また、センタービームとサイドビームのミスコンバーゼ
ンス（以下、コマ収差という０）は、電子銃のスクリー
ン側端にフィールドコントローラ（以下、ＦＣと略記す
る。）と呼ばれる磁性片を配設してセンタービームに対
してサイドビームの偏向能率を変化させることによって
補正が行なわれていた。In addition, misconvergence (hereinafter referred to as coma aberration) between the center beam and side beams can be solved by installing a magnetic piece called a field controller (hereinafter abbreviated as FC) at the screen side edge of the electron gun. On the other hand, correction has been made by changing the deflection efficiency of the side beam.

上記のようなＹＨ，ＸＨ，ＰＱＶミスコンバーゼンス（
以下、トリレンマという。）およびコマ収差を、垂直偏
向磁界の管軸方向の長さを変えることで補正する構成と
した特開昭５９−１７１４３７号公報記載の発明がある
。この発明は、　Ｆ３／Ｔ形偏向ヨークの垂直偏向コイ
ルが巻回されている主コアの電子銃側にリング状の副コ
アを配設し、この副コアの上下辺の部分には垂直偏向コ
イルと同じ向きの電流が通電される一対の第１の補助コ
イルが、また、当該副コアの左石辺の部分には上記垂直
偏向コイルとは逆向きの電流が通電される２対の第２の
補助コイルがそれぞれ巻回されてお〕、上記第１．第２
の補助コイルのアンペアターンの比を調整することによ
り垂直偏向磁界の磁界長ｌを電子銃側で変化させる構成
として、トリレンマおよびコマ収差を補正するものであ
シ、その補正原理は、前記従来の垂直偏向コイルの位置
を管軸２方向に移動させて行うのと同様である。YH, XH, PQV misconvergence as above (
Hereafter, it is called trilemma. ) and coma aberration are corrected by changing the length of the vertical deflection magnetic field in the tube axis direction, as disclosed in Japanese Patent Laid-Open No. 59-171437. In this invention, a ring-shaped sub-core is arranged on the electron gun side of the main core around which the vertical deflection coil of the F3/T-type deflection yoke is wound, and the vertical deflection coil is disposed on the upper and lower sides of this sub-core. A pair of first auxiliary coils are energized with a current in the same direction as the vertical deflection coil, and a second pair of auxiliary coils are energized with a current in the opposite direction to the vertical deflection coil on the left side of the sub-core. auxiliary coils are wound respectively], and the auxiliary coils of the above-mentioned No. 1. Second
This is a configuration in which the magnetic field length l of the vertical deflection magnetic field is changed on the electron gun side by adjusting the ampere-turn ratio of the auxiliary coil, and the trilemma and coma aberrations are corrected. This is similar to moving the vertical deflection coil in two directions along the tube axis.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来の偏向ヨークではサイドビームの四隅のＰＱｖミス
コンバーゼンスを合わせるために、水平偏向磁界の中心
に対して垂直偏向磁界の中心を２軸方向に移動させる必
要があるが、Ｓ／Ｓ形偏向ヨークでは、構造上、寸法的
な裕度が＃１とんどないために、補正が不十分となシ、
特に大型画面のＣＲＴでは四隅のＰＱｖミスコンバーゼ
ンスの補正ができないという問題点かあシ、さらに、コ
マ収差の補正は、ＣＲＴのサイズ別にＦＣを変更しなく
てはならなかった。With conventional deflection yokes, in order to match the PQv misconvergence at the four corners of the side beam, it is necessary to move the center of the vertical deflection magnetic field in two axes with respect to the center of the horizontal deflection magnetic field, but with the S/S type deflection yoke, , Due to the lack of structural and dimensional tolerance #1, the correction is insufficient.
Particularly with large-screen CRTs, there is a problem in that PQv misconvergence at the four corners cannot be corrected.Furthermore, in order to correct coma aberration, it is necessary to change the FC depending on the size of the CRT.

また、特開昭５９−１７１４３７号公報記載の発明は、
十分な補正効果を挙げるためには、第１゜第２の補助コ
イルの巻数を十分に多くしなければならないので、垂直
偏向コイルの主巻線の必要巻数の確保が実装上の大きな
問題点となる。In addition, the invention described in JP-A-59-171437 is
In order to achieve a sufficient correction effect, the number of turns of the first and second auxiliary coils must be sufficiently large, so securing the necessary number of turns of the main winding of the vertical deflection coil is a major problem in implementation. Become.

この発明は上記のような問題点を解決するために、なさ
れたもので、複雑な磁界分布が容易に形成できる利点を
もつＳ／Ｓ形偏向ヨークと組合わせて、サイドビームの
中間部および四隅のミスコンバーゼンスを補正できると
ともに、コマ収差をＦＣ等の磁性片を電子銃に設けるこ
となく補正できる偏向ヨーク装置を得ることを目的とす
るものである。This invention was made in order to solve the above-mentioned problems, and combines the S/S type deflection yoke, which has the advantage of easily forming a complex magnetic field distribution, to It is an object of the present invention to provide a deflection yoke device which can correct misconvergence in the electron gun and correct coma aberration without providing a magnetic piece such as FC in the electron gun.

Ｃ問題点を解決するための手段〕 この発明に係る偏向ミーク装姪は、セ、１１／７コンバ
ーゼンス機能を有するＳ／Ｓ形偏向ヨークと、この偏向
ヨークよりミ子銃寄シの位置に装着される第２の偏向装
置とで構成され、該第２の偏向装置は、リング状の磁性
体に３対のコイルがトロイダル状に巻回されてな夛、該
磁性体の上下辺に巻回されている１対の第１のコイｙに
は上記Ｓ／Ｓ形偏向ヨークの垂直偏向電流と同じ向きの
垂直偏向電流が通電され、また該磁性体の左右辺に巻回
されている２対の第２のコイルにはそれぞれ逆向の垂直
偏向電流が通電されて、上記１対の第１のコイルの磁力
１ｋが上記２対の第２のコイルの磁力量より強い６極偏
向磁界を発生する構成としたものである。Means for Solving Problem C] The deflection Meek mount according to the present invention includes an S/S type deflection yoke having a 11/7 convergence function, and a position closer to the Miko gun than the deflection yoke. The second deflection device consists of a ring-shaped magnetic body and three pairs of coils wound in a toroidal shape, and the coils are wound around the top and bottom sides of the magnetic body. A vertical deflection current in the same direction as the vertical deflection current of the S/S type deflection yoke is applied to the pair of first coils y, and the two pairs of coils wound on the left and right sides of the magnetic body are energized. Vertical deflection currents in opposite directions are applied to the second coils, respectively, so that the magnetic force 1k of the pair of first coils generates a six-pole deflection magnetic field that is stronger than the magnetic force of the two pairs of second coils. It is structured as follows.

〔作用〕[Effect]

第２の偏向装置の１対の第１のコイルは、Ｓ／Ｓ形偏向
ヨークの垂ぽ偏向磁界と同じ向きの磁界を発生するのに
対し、２対の第２のコイルは、逆極性の磁界を発生し、
しかもその第２のコイルの位置は第１のコイルに対して
垂直の向きであるのでビンクッション形の６極偏向磁界
を形成する。The pair of first coils of the second deflection device generates a magnetic field in the same direction as the vertical deflection field of the S/S type deflection yoke, whereas the two pairs of second coils generate a magnetic field of opposite polarity. generates a magnetic field,
Moreover, since the position of the second coil is perpendicular to the first coil, a bottle cushion-shaped six-pole deflection magnetic field is formed.

このため、インフィン形電子銃から発射された３つの電
子ビームは、それぞれ垂直偏向磁界と同じ方向にプリ偏
向されるとともに、両サイドビームＢ、Ｒは強いビンク
ッション形である水平偏向磁界によって垂直方向の偏向
力が弱められる作用を受けてＰＱｖミスコンバーゼンス
が補正される。Therefore, the three electron beams emitted from the Infin type electron gun are each pre-deflected in the same direction as the vertical deflection magnetic field, and both side beams B and R are directed vertically by the strong bin cushion-shaped horizontal deflection magnetic field. PQv misconvergence is corrected by the action of weakening the deflection force of .

また、第２の偏向装置は、センタビームＧの垂直偏向感
度を、両サイドビームＢ、Ｒより強めるので、コマ収差
も修正される。Furthermore, since the second deflection device makes the vertical deflection sensitivity of the center beam G stronger than that of the side beams B and R, coma aberration is also corrected.

また、Ｓ／Ｓ形偏向ヨークは、サイドビームの中間部ミ
スコンバーゼンスの補正をサドル形垂直偏向コイルの磁
界分布を適当に設定することにより行うことができるの
で、綜合的に、サイドビーム９ミスコンバーゼンスが補
正された偏向ヨーク装置が得られる。In addition, the S/S type deflection yoke can correct the misconvergence in the middle part of the side beam by appropriately setting the magnetic field distribution of the saddle type vertical deflection coil. A deflection yoke device with corrected correction is obtained.

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

第１図はこの発明の一実施例の側面図で、（３）はＳ／
Ｓ形偏向ヨーク、（７）は第２の偏向装置で、偏向ヨー
ク（３）よりミ子銃（２）寄シの位置に装着される０（
８）はＣＰＭマグネットである。FIG. 1 is a side view of one embodiment of this invention, and (3) is an S/
The S-shaped deflection yoke (7) is the second deflection device, and the 0 (
8) is a CPM magnet.

ｖ１２図は第２の偏向装置の構造を示す斜視図、第３図
はそのトロイダルコイルαωを構成する６つのコイ、Ｖ
　１１）　−（１６］の接続図、第４図はそのリング状
の磁性体の構造を示す分解斜視図であるｏリング状の磁
性体（９）は、２つの半円環状の磁性体（９ａ）を、コ
アクリップ（９ｂ）で一体に連結して構成される。トロ
イダ！コイｆｉ／ｕＯ）は、６つのコイル（１１１〜σ
６）のうち、管軸２を通る垂直軸Ｙを中心として上下辺
の部分に、垂直偏向磁界を強める向きに巻回されている
１対の第１のコイル（１１１、（１２１と、管軸２を通
る水平軸Ｘを挾んで相対するようにリング状の磁性体（
９）の左右辺に、コイルｕ１１．　ｕとは逆向に巻回さ
れている２対の第２のコイ１ｖ（１３）、（１４）およ
び（１５）　、　（１６）で構成され、第３図に示すよ
うに接続されている。この第２の偏向装置は、第５図（
ａ）　ｔたは由）に示すように、サドル形垂直偏向コイ
１ｖ（４ｓ）に並列または直列に接続され、直列または
並列接続された可変抵抗器ＶＲにより通電量が調節され
、ある瞬間において、第６図に示したような、６つの極
を有する偏向磁界を形成し、三本の電子ビームＢ、Ｇｊ
Ｒをプリ偏向してＳ／Ｓ形偏向ヨーク（３）への入射位
置および入射角度を調節する作用を行う◎ つぎに、この第２の偏向装置によるＰＱｖミスコンバー
ゼンスの補正作用を説明する。Fig. v12 is a perspective view showing the structure of the second deflection device, and Fig. 3 shows the six coils constituting the toroidal coil αω, V
11) - (16) connection diagram, and Figure 4 is an exploded perspective view showing the structure of the ring-shaped magnetic body. ) are connected together with a core clip (9b).The toroid! coil fi/uO) consists of six coils (111 to σ
6), a pair of first coils (111, (121) and A ring-shaped magnetic body (
9) on the left and right sides of the coil u11. It consists of two pairs of second coils 1v (13), (14) and (15), (16) which are wound in the opposite direction to u, and are connected as shown in FIG. This second deflection device is shown in FIG.
a) As shown in (t), the amount of current is adjusted by the variable resistor VR connected in parallel or series to the saddle type vertical deflection coil 1v (4s) and connected in series or in parallel, and at a certain moment, A deflection magnetic field with six poles as shown in Fig. 6 is formed, and three electron beams B, Gj
Pre-deflects R to adjust the incident position and angle of incidence on the S/S type deflection yoke (3).◎ Next, the PQv misconvergence correction effect by this second deflection device will be explained.

第７図（ａ）はセルフコンバーゼンスタイプの偏向ヨー
ク（３）の水平偏向磁界パターンを示す図で、強いビン
クッション形の磁界分布を形成してお少。FIG. 7(a) is a diagram showing the horizontal deflection magnetic field pattern of the self-convergence type deflection yoke (3), which forms a strong bottle-cushion-shaped magnetic field distribution.

（ＳＯＯ）は水平偏向磁力線である。(SOO) is the horizontal deflection magnetic field line.

いま、”−子ビームがラスタの第１象限を走査している
とすると、３本の電子ビームＢ、Ｇ、Ｒは第１象限方向
にプリ偏向されているので、第７図世）に示すように、
右側の電子ビームはどピンクッシロンの傾斜が強くなる
水平偏向磁力線（５００）の力（５０）を受け、その垂
直分力（５１）も右偶の電子ビームはど大きくなる。こ
の作用は、第８図に示したようなＰＱｖミスコンバーゼ
ンスだけをもつ偏向ヨークの場合には、ＰＱｖミスコン
バーゼンスを減少させる方向であり、この作用は、他の
康限においても同様に作用する。Now, assuming that the -child beam is scanning the first quadrant of the raster, the three electron beams B, G, and R are pre-deflected in the direction of the first quadrant, as shown in Figure 7). like,
The electron beam on the right receives the force (50) of the horizontally deflected magnetic field line (500), which makes the slope of the pincushion stronger, and its vertical component (51) also becomes larger for the electron beam on the right. In the case of a deflection yoke having only PQv misconvergence as shown in FIG. 8, this effect tends to reduce the PQv misconvergence, and this effect works similarly in other limits.

一般にＳ／Ｓ形偏向ヨークは、Ｓ／Ｔ形偏向ヨークと比
較すると、＃テとんどのＣＲＴサイズに対して第８図に
示すようなＰＱｖミスコンバーゼンスの残ったパターン
を有する。この第８図に示したようなＰＱｖミスコンパ
ーゼンスヲ逆クワクロスい、ＰＱｖミスコンバーゼンス
の残ったパターンを、逆トリレンマ（または負のトリレ
ンマ）という。Ｓ／Ｓ形偏向ヨークは第８図のような逆
トリレンマのＰＱｖミスコンバーゼンスをもつことが多
い。これは、Ｓ／Ｓ形偏向ヨークのコイルの構造上、第
９図（ａ）、Φ）に示すように、偏向ヨーク（３）の中
心軸ＺＫ対して偏向ヨーク（３）の尾部側に延びる垂直
磁界成分Ｂｘが短かく、ｌよとんど水平偏向磁界成分Ｂ
ｙと一致しているためである。In general, when compared with the S/T type deflection yoke, the S/S type deflection yoke has a pattern in which PQv misconvergence remains as shown in FIG. 8 for most CRT sizes. The PQv misconvergence as shown in FIG. 8 is reversed, and the remaining pattern of the PQv misconvergence is called an inverse trilemma (or negative trilemma). S/S type deflection yokes often have an inverted trilemma PQv misconvergence as shown in FIG. Due to the structure of the coil of the S/S type deflection yoke, this extends toward the tail side of the deflection yoke (3) with respect to the central axis ZK of the deflection yoke (3), as shown in FIG. 9(a), Φ). The vertical magnetic field component Bx is short and the horizontal deflection magnetic field component B
This is because it matches y.

なお、サドル形のコイルは複雑な偏向磁界分布が容易に
作れるため、第１０図に示すような中間部の一次ミスコ
ンバーゼンスの補正を偏向コイルの分布形状を適切にす
ることでもって行うことができる。Note that since a saddle-shaped coil can easily create a complex deflection magnetic field distribution, it is possible to correct the primary misconvergence in the middle region as shown in Figure 10 by optimizing the distribution shape of the deflection coil. .

これに加えて、Ｓ／Ｓ形偏向ヨーク（３）の主偏向磁界
の漏洩が少ない電子銃をシの位置に、第２の偏向装置（
７）を取シ付けて、Ｓ／Ｓ形偏向ヨーク（３）の発生す
る主偏向磁界に電子ビームが入射する以前に第２の偏向
装置（７）によってプリ偏向を施し、電子ビームを制御
することにより１画面全体にわたって良好なコンバーゼ
ンス特性を得ることができる。In addition, the electron gun with less leakage of the main deflection magnetic field of the S/S type deflection yoke (3) is placed in the position of the second deflection device (
7) to control the electron beam by pre-deflecting it with the second deflection device (7) before the electron beam enters the main deflection magnetic field generated by the S/S deflection yoke (3). This makes it possible to obtain good convergence characteristics over the entire screen.

つぎに、第２の偏向装置（７）によりコマ収差の補差の
補正作用を説明する。Next, the effect of correcting coma aberration by the second deflection device (7) will be explained.

第１１図（ＩＬ）は第２の偏向装置（７）によって発生
する６極偏向磁界のパターンを示す図、同図中）はこの
プリ偏向磁界によって３本の電子ビームＢ、Ｇ。FIG. 11 (IL) is a diagram showing a pattern of a six-pole deflection magnetic field generated by the second deflection device (7), and three electron beams B and G are generated by this pre-deflection magnetic field.

Ｒが受けるプリ偏向力の大きさの関係を示す図でるる。This is a diagram showing the relationship between the magnitude of the pre-deflection force that R receives.

甲、において、１対のＷＩｌのコイルαｎ　、　ｕａの
発生する垂直偏向磁界は管軸２を通る垂直軸上のｆｉハ
偏向磁界を両サイドより強める働きをしておシ、センタ
ービームＧの垂直方向の偏向感度が、両サイドの”−子
ビームＢ、Ｒより大きくなる。また、水平軸Ｘを挾んで
逆方向に巻回された第２のコイルα３．圓および（至）
、（１６１は、第１のコイ／Ｌ／（１１１゜（２）によ
って発生する磁界の極の位置を明確にさせるとともに両
サイドビームＢ、Ｒの垂直偏向感度をセンタービームＧ
の増大に比較して相対的に減じる働きをしている。In A, the vertical deflection magnetic field generated by the pair of coils αn and ua of WIl acts to strengthen the deflection magnetic field fi on the vertical axis passing through the tube axis 2 from both sides. The deflection sensitivity in the direction is greater than that of the beams B and R on both sides.In addition, the second coil α3.
, (161) clarifies the position of the pole of the magnetic field generated by the first coil /L/(111° (2)) and changes the vertical deflection sensitivity of both side beams B and R to the center beam G.
It functions to decrease relatively compared to the increase in .

このようなコマ収差の補正作用は、なるべく電子銃寄シ
のところで行うのが効果的であシ、この実施例のＭ２の
偏向装置（７）の配役位置は、偏向ヨーク（３）と離れ
て自由に位置決めできるので有利である。It is effective to correct such coma aberration as close to the electron gun as possible, and the M2 deflection device (7) in this embodiment is placed away from the deflection yoke (3). This is advantageous because it can be positioned freely.

〔発明の効果〕〔Effect of the invention〕

この発明は、Ｓ／Ｓ形偏向ヨークが発生する主偏向磁界
の影響が少ない電子銃寄シの位置に、垂直偏向電流が通
電されて６極偏向磁界を発生する第２の偏向装置を設け
、３つの℃子ビームＢ　、　Ｇ。This invention provides a second deflection device that generates a six-pole deflection magnetic field by applying a vertical deflection current to a position near the electron gun where the influence of the main deflection magnetic field generated by the S/S type deflection yoke is small; Three beams B, G.

Ｒが上記主偏向磁界に入射する前に、センタビームＧと
両サイドビームとをそれぞれプリ偏向し、上記主偏向磁
界に入射する位置および入射角度をＮＮｊしてサイドビ
ームのミスコンバーゼンスおよびコマ収差の補正を行う
構成としたもので、Ｓ／Ｓ形偏向ヨークの利点である中
間部高次ミスコンバーゼンスの補正の容易性を最大限に
活かして、サイドビームの良好なコンバーゼンス特性が
得られるばかシでなく、特別な磁性片素子をＣＲＴに付
加することもなくセンタービームとサイドビーふの画面
全体に良好なコンバーゼンス特性を有する偏向ヨーク装
置が得られる。Before R enters the main deflection magnetic field, the center beam G and both side beams are pre-deflected, and the position and angle of incidence of R into the main deflection magnetic field are determined by NNj to eliminate misconvergence and coma aberration of the side beams. This is a structure that performs correction, and it is a foolproof system that takes full advantage of the ease of correction of intermediate high-order misconvergence, which is an advantage of the S/S type deflection yoke, and obtains good convergence characteristics of the side beam. Therefore, a deflection yoke device having good convergence characteristics over the entire screen of the center beam and side beams can be obtained without adding any special magnetic element to the CRT.

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

第１図はこの発明の一実施例の側面図、第２図はこの実
施例の要部である第２の偏向装置の斜視図、第３図はそ
のコイルの接続回路図、第４図は第２の偏向装置の分解
斜視図、第５図（ａ）　、　（ｂ）は第２の偏向装置と
Ｓ形垂直偏向コイルとの接続回路図、第６図は第２の偏
向装置が発生する６極偏向磁界を示す図、第７図（ａ）
　、　（ｂ）は第２の偏向装置のＰＱｖミスコンバーゼ
ンス補正作用を説明するための図、第８図はＳ／Ｓ形偏
向ヨークの逆クロス０ＰＱｖミスコンバーゼンスパター
ンｔ　示ｆ　図り第９図（＆）はＳ／Ｓ形偏向ヨークの
コイル配置を示す断面図、第９図中）はその管軸ｚ上の
垂直および水平偏向磁界の強さを示す分布図、第１０図
は中間高次ミスコンバーゼンスのパターンを示ｆ図、　
　’第１１図（ａ）、（ｂ）は第２の偏向装置によるコ
マ収差の補正作用を説明するための図、第１２図（ｊＬ
）は一般的なミスコンバーゼンスのパターンを示す図、
同図（ｂ）はその第１象限の拡大図、第１３図は、従来
のＳ／Ｔ形偏向ヨークにおけるＰＱＶおよびコマ収差の
補正方法を説明するための側面図である。 （１）・・・カラー陰ｉ線管、（２）・・・インツイン
形電子銃、（３）・・・偏向ヨーク、（４）・・・垂直
偏向コイル％（５）・・・水平偏向コイＡ／、（７）・
・・第２の偏向装置、（９）・・・リング状の磁性体、
（１０１・・・トロイダルコイル、　Ｑｌｌ、（１２＋
・・・第１のコイル、　ｔｉａ＋　、　（１４）・・・
第２のコイル、（至）、αｅ・・・第２のコイ／ｌ／、
Ｂ、Ｒ・・・両サイドビーム、Ｇ・・・センタビーム、
Ｘ・・・水平軸、Ｙ・・・垂直軸、２・・・管軸。 な２％図中、同一符号はそれぞれ同一、または相当部分
を示す。FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a perspective view of the second deflection device which is the main part of this embodiment, FIG. 3 is a connection circuit diagram of the coil, and FIG. An exploded perspective view of the second deflection device, FIGS. 5(a) and 5(b) are connection circuit diagrams of the second deflection device and the S-type vertical deflection coil, and FIG. 6 is a diagram of the second deflection device generating electricity. Diagram showing six-pole deflection magnetic field, Fig. 7(a)
, (b) is a diagram for explaining the PQv misconvergence correction effect of the second deflection device, and FIG. 8 is a diagram showing the reverse cross 0 PQv misconvergence pattern t of the S/S type deflection yoke. is a cross-sectional view showing the coil arrangement of the S/S type deflection yoke, Figure 9) is a distribution diagram showing the strength of the vertical and horizontal deflection magnetic fields on the tube axis z, and Figure 10 is a distribution diagram of the intermediate high-order misconvergence. A diagram showing the pattern,
11(a) and (b) are diagrams for explaining the comatic aberration correction effect by the second deflection device, and Figure 12 (jL
) is a diagram showing a common misconvergence pattern,
FIG. 13B is an enlarged view of the first quadrant, and FIG. 13 is a side view for explaining a method of correcting PQV and coma aberration in a conventional S/T type deflection yoke. (1)...Color I-ray tube, (2)...Intwin type electron gun, (3)...Deflection yoke, (4)...Vertical deflection coil% (5)...Horizontal Deflection Carp A/, (7)・
... second deflection device, (9) ... ring-shaped magnetic body,
(101... toroidal coil, Qll, (12+
...first coil, tia+, (14)...
2nd coil, (to), αe... 2nd coil /l/,
B, R...both side beams, G...center beam,
X...Horizontal axis, Y...Vertical axis, 2...Pipe axis. In the 2% figures, the same symbols indicate the same or corresponding parts.

Claims (3)

【特許請求の範囲】[Claims] （１）、インライン型電子銃を備えたカラー陰極線管に
装着されるセルフコンバーゼンス機能を有するサドル−
サドル形偏向ヨークと、このサドル−サドル形偏向ヨー
クより電子銃寄りの位置に装着され、垂直偏向電流が通
電されて上記サドル−サドル形偏向ヨークに入射する上
記電子銃から発射された両サイドビームおよびセンタビ
ームの入射位置ならびに入射角度をそれぞれ調節する６
極偏向磁界を発生する第２の偏向装置とを備えた偏向ヨ
ーク装置。(1) A saddle with a self-convergence function attached to a color cathode ray tube equipped with an in-line electron gun.
A saddle-shaped deflection yoke is mounted at a position closer to the electron gun than the saddle-saddle-shaped deflection yoke, and both side beams emitted from the electron gun are supplied with a vertical deflection current and incident on the saddle-saddle deflection yoke. and adjust the incident position and angle of incidence of the center beam, respectively6.
and a second deflection device that generates a polar deflection magnetic field. （２）、第２の偏向装置は、リング状の磁性体と、この
磁性体の上下辺の部分に巻回されている１対の第１のコ
イルと、同じく左右辺の部分に巻回されている２対の第
２のコイルとよりなり、かつ上記第１のコイルが発生す
る垂直偏向を助長する磁力量の方が、上記２対の第２の
コイルが発生する磁力量より多くなるように構成してな
る特許請求の範囲第１項記載の偏向ヨーク装置。(2) The second deflection device includes a ring-shaped magnetic body, a pair of first coils wound around the upper and lower sides of the magnetic body, and a pair of first coils wound around the left and right sides of the ring-shaped magnetic body. the two pairs of second coils, and the amount of magnetic force that promotes vertical deflection generated by the first coil is greater than the amount of magnetic force generated by the two pairs of second coils. A deflection yoke device according to claim 1, wherein the deflection yoke device is constructed as follows. （３）、第２の偏向装置の第１のコイルと、２対の第２
のコイルとに通電する垂直偏向電流の量を各別に調節す
る通電量調節装置を備えた特許請求の範囲第２項記載の
偏向ヨーク装置。(3) a first coil of a second deflection device and two pairs of second coils;
3. The deflection yoke device according to claim 2, further comprising an energization amount adjusting device that individually adjusts the amount of vertical deflection current applied to each of the coils.
JP60294116A 1985-12-25 1985-12-25 Deflection-yoke device Expired - Lifetime JP2549836B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60294116A JP2549836B2 (en) 1985-12-25 1985-12-25 Deflection-yoke device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60294116A JP2549836B2 (en) 1985-12-25 1985-12-25 Deflection-yoke device

Publications (2)

Publication Number Publication Date
JPS62154441A true JPS62154441A (en) 1987-07-09
JP2549836B2 JP2549836B2 (en) 1996-10-30

Family

ID=17803494

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60294116A Expired - Lifetime JP2549836B2 (en) 1985-12-25 1985-12-25 Deflection-yoke device

Country Status (1)

Country Link
JP (1) JP2549836B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003071575A1 (en) * 2002-02-21 2003-08-28 Kabushiki Kaisha Toshiba Deflection yoke and cathode ray tube device with the yoke

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5361227A (en) * 1976-11-12 1978-06-01 Denki Onkyo Co Ltd Deflecting yoke
JPS60100341A (en) * 1983-11-04 1985-06-04 Mitsubishi Electric Corp Deflection device for cathode-ray tube

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5361227A (en) * 1976-11-12 1978-06-01 Denki Onkyo Co Ltd Deflecting yoke
JPS60100341A (en) * 1983-11-04 1985-06-04 Mitsubishi Electric Corp Deflection device for cathode-ray tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003071575A1 (en) * 2002-02-21 2003-08-28 Kabushiki Kaisha Toshiba Deflection yoke and cathode ray tube device with the yoke
US6879095B2 (en) 2002-02-21 2005-04-12 Kabushiki Kaisha Toshiba Deflection yoke and cathode ray tube apparatus provided with the same

Also Published As

Publication number Publication date
JP2549836B2 (en) 1996-10-30

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