JPS6318299B2 - - Google Patents
Info
- Publication number
- JPS6318299B2 JPS6318299B2 JP1659680A JP1659680A JPS6318299B2 JP S6318299 B2 JPS6318299 B2 JP S6318299B2 JP 1659680 A JP1659680 A JP 1659680A JP 1659680 A JP1659680 A JP 1659680A JP S6318299 B2 JPS6318299 B2 JP S6318299B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- deflection
- absorbers
- leakage
- vertical 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.)
- Expired
Links
- 239000006096 absorbing agent Substances 0.000 claims description 21
- 238000010586 diagram Methods 0.000 description 9
- 241000226585 Antennaria plantaginifolia Species 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000889 permalloy Inorganic materials 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004804 winding Methods 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
- H01J29/70—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/56—Correction of beam optics
- H01J2229/568—Correction of beam optics using supplementary correction devices
- H01J2229/5681—Correction of beam optics using supplementary correction devices magnetic
- H01J2229/5684—Magnetic materials, e.g. soft iron
- H01J2229/5685—Cross-arms field shaper
Description
【発明の詳細な説明】
本発明はインライン式電子銃（３個の電子銃を
水平に一直線に配列した方式）を内装するカラー
受像管の偏向ヨークに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deflection yoke for a color picture tube incorporating an in-line electron gun (a system in which three electron guns are horizontally arranged in a straight line).
インライン式電子銃を内装するカラー受像管を
使用したカラーテレビジヨン受像機においては、
原則的に第１図に示すように垂直偏向コイルより
発生する磁界をバレル磁界１とし、水平偏向コイ
ルより発生する磁界をピンクツシヨン磁界２とす
ることによつてコンバーゼンスのずれを補正して
良好なコンバーゼンス特性をもつた画像を再生す
ることが行なわれている。一般にこのような方式
はセルフコンバーゼンス方式と云われ、広く実施
されている。 In a color television receiver using a color picture tube with an in-line electron gun,
In principle, as shown in Figure 1, the magnetic field generated by the vertical deflection coil is the barrel magnetic field 1, and the magnetic field generated by the horizontal deflection coil is the pink tension magnetic field 2, thereby correcting the convergence deviation and achieving good convergence. Images with characteristics are being reproduced. Generally, such a method is called a self-convergence method, and is widely practiced.
ところで、このようなセルフコンバーゼンス方
式によれば良好なコンバーゼンス効果が得られる
けれども、カラー受像管の矩形スクリーンの曲率
およびビームの偏向曲率の違いからラスターの歪
は依然として第２図に示すように左右の矢印３で
示す部分が突出し左右が糸巻形の歪４をもつよう
になる。 By the way, although a good convergence effect can be obtained with such a self-convergence method, raster distortion still occurs due to differences in the curvature of the rectangular screen of the color picture tube and the deflection curvature of the beam, as shown in Figure 2. The part indicated by the arrow 3 protrudes, and the left and right sides have a pincushion-shaped distortion 4.
従来はこの糸巻形の歪４を補正するために垂直
偏向信号と同期したパラボラ状に振幅が変化する
信号を水平偏向信号に重畳して補正する左右糸巻
歪補正回路装置を付加している。 Conventionally, in order to correct this pincushion distortion 4, a left and right pincushion distortion correction circuit device is added which corrects the horizontal deflection signal by superimposing a signal whose amplitude changes in a parabolic manner in synchronization with the vertical deflection signal.
しかしながら、このような歪補正回路装置は省
資源、低廉価および簡素化という点から見ると逆
行したものであり、その改善が望まれている。 However, such a distortion correction circuit device is backwards in terms of resource saving, low cost, and simplicity, and improvements are desired.
この改善の一例として特開昭54−75215号公報
に示されているような構造が考えられている。即
ち、この公報に示されている技術は垂直偏向コイ
ルの漏れ磁界を磁性体を使用して偏向ヨークのフ
アンネル側に導き出し、垂直偏向バレル磁界をピ
ンクツシヨン磁界の方向へ影響させてやることに
よりラスターの左右糸巻歪の補正を行うようにし
たものである。 As an example of this improvement, a structure as shown in Japanese Unexamined Patent Publication No. 75215/1984 has been considered. That is, the technology disclosed in this publication uses a magnetic material to guide the leakage magnetic field of the vertical deflection coil to the funnel side of the deflection yoke, and causes the vertical deflection barrel magnetic field to influence the direction of the pink tension magnetic field, thereby creating a raster image. This is to correct left and right pincushion distortion.
次にその概略を第３図乃至第６図によつて説明
する。 Next, the outline will be explained with reference to FIGS. 3 to 6.
ところで第１図に示されているバレル形の垂直
偏向磁界１は第３図に示すような載頭円錐状コア
（以下単にコアと云う）５1，５2に巻かれた一対
のトロイダル巻の垂直偏向コイル６1，６2によつ
て達成される。 By the way, the barrel-shaped vertical deflection magnetic field 1 shown in FIG. 1 is produced by a pair of toroidal windings wound around a truncated conical core (hereinafter simply referred to as core) 5 1 and 5 2 as shown in FIG. 3. This is achieved by vertical deflection coils 6 1 , 6 2 .
そして、原理的なことは、ラスターの左右の糸
巻歪を補正するには水平偏向磁界をピンクツシヨ
ン形にすればよいことは実験的に認められてお
り、また偏向ヨークによつて発生する磁界は、こ
の偏向ヨークのネツク開口側および、フアンネル
開口側との総合的なバレル形あるいはピンクツシ
ヨン形の磁界によつてビームのコンバーゼンスが
決定されるが、ラスター歪はフアンネル開口側の
磁界によつて強く影響されることも確認されてい
る。 In principle, it has been experimentally confirmed that to correct the pincushion distortion on the left and right sides of the raster, it is sufficient to make the horizontal deflection magnetic field into a pink tension type, and the magnetic field generated by the deflection yoke is Beam convergence is determined by the overall barrel-shaped or pink union-shaped magnetic field between the neck opening side of the deflection yoke and the funnel opening side, but raster distortion is strongly influenced by the magnetic field on the funnel opening side. It has also been confirmed that
前述した技術を基本にして考えられた偏向ヨー
クは第４図乃至第７図に示すように管軸（Ｚ−
Ｚ）方向に水平軸（Ｘ−Ｘ）に沿つて半分に切断
されたコア５1，５2を結合してそれぞれのコア５
１，５2の垂直軸（Ｙ−Ｙ）方向にトロイダル形垂
直コイル６1，６2を巻回して垂直偏向コイルと
し、この垂直偏向コイル６1，６2に支持体７を介
してサドル形水平コイル８1，８2が装着されてお
り、更に一対のトロイダル形垂直偏向コイル６1，
６2の一部及びその間のコア５1，５2に磁界吸収
体９1，９2を配置する。この磁界吸収体９1，９2
を配置した部分は第３図の磁束発生図からもわか
るように、垂直偏向コイル６1，６2それぞれによ
つて発生する磁束が反撥し合つている所で両垂直
偏向コイル６1，６2によつて発生する磁界が強
く、漏れ磁界を最も効率よく拾うことが出来る。
この磁界吸収体９1，９2のそれぞれの両端には、
カラー受像管の矩形スクリーンの隅部に対応する
位置に突出するアーム状の磁界吸収体１０1，１
０2及び１０3，１０4が一体に形成され、補助偏
向器１１を構成する。従つて磁界漏洩体１０1，
１０2，１０3，１０4には垂直偏向磁界と同期し
た磁界が発生し、カラー受像管の矩形スクリーン
側からみた配置は第６図に示すようになり、第１
図または第３図に示したバレル分布磁界１をほぼ
実線１２のようにピンクツシヨン磁界方向へ補正
することが可能となる。 The deflection yoke, which was conceived based on the above-mentioned technology, has a tube axis (Z-
The cores 5 1 and 5 2 cut in half along the horizontal axis (X-X) in the Z) direction are combined to form each core 5.
Toroidal vertical coils 6 1 , 6 2 are wound in the vertical axis (Y-Y) direction of 1 , 5 2 to form a vertical deflection coil, and a saddle-shaped coil is connected to the vertical deflection coils 6 1 , 6 2 via a support 7 . Horizontal coils 8 1 , 8 2 are attached, and a pair of toroidal vertical deflection coils 6 1 ,
Magnetic field absorbers 9 1 and 9 2 are arranged in a part of the core 6 2 and the cores 5 1 and 5 2 between them. These magnetic field absorbers 9 1 , 9 2
As can be seen from the magnetic flux generation diagram in FIG. 3, the area where the vertical deflection coils 6 1 and 6 2 are located is where the magnetic fluxes generated by the vertical deflection coils 6 1 and 6 2 repel each other. The magnetic field generated by this is strong and can pick up leakage magnetic fields most efficiently.
At both ends of each of the magnetic field absorbers 9 1 and 9 2 ,
An arm-shaped magnetic field absorber 10 1 , 1 protrudes at a position corresponding to a corner of a rectangular screen of a color picture tube.
0 2 , 10 3 , and 10 4 are integrally formed to constitute the auxiliary deflector 11 . Therefore, the magnetic field leakage body 10 1 ,
A magnetic field synchronized with the vertical deflection magnetic field is generated at 10 2 , 10 3 , and 10 4 , and the arrangement as seen from the rectangular screen side of the color picture tube is as shown in Figure 6.
It becomes possible to correct the barrel distributed magnetic field 1 shown in the figure or FIG.
前述した補助偏向器１１は硅素鋼板やパーマロ
イなどの高透磁率材料からなる磁性体で形成され
ており、その展開形状は第７図に示すように磁界
吸収体の幅（l1）と磁界漏洩体の幅（l2）が概略
l1＝l2（例えばl1＝l2＝100〜130mm）であり、この
様な展開形状の磁性体を使用すると第５図に示す
ように一対の磁界吸収体９1，９2間の平均距離
（d1）と、これら磁界吸収体９1，９2からの磁界
漏洩体１０1，１０3間の平均距離（d2）との関係
は通常d1＜d2となり、垂直偏向コイル６1，６2か
らの漏れ磁界が磁界漏洩体１０1，１０3に供給さ
れる前に磁気抵抗の小さい磁界吸収体９1，９2の
端部間でシヨートしてしまうことになり、垂直偏
向コイル６1，６2からの漏れ磁界がフアンネル開
孔部側でピンクツシヨン磁界形成に有効に利用さ
れない欠点があつた。 The aforementioned auxiliary deflector 11 is made of a magnetic material made of a high magnetic permeability material such as a silicon steel plate or permalloy, and its developed shape is determined by the width (l 1 ) of the magnetic field absorber and the magnetic field leakage as shown in FIG. Approximate body width (l 2 )
l 1 = l 2 (for example, l 1 = l 2 = 100 to 130 mm), and when using a magnetic material with such a developed shape, the difference between the pair of magnetic field absorbers 9 1 and 9 2 as shown in FIG. The relationship between the average distance (d 1 ) and the average distance (d 2 ) between the magnetic field leakers 10 1 and 10 3 from these magnetic field absorbers 9 1 and 9 2 is usually d 1 <d 2 , and the vertical deflection coil Before the leakage magnetic field from 6 1 and 6 2 is supplied to the magnetic field leakers 10 1 and 10 3 , it shoots between the ends of the magnetic field absorbers 9 1 and 9 2 with low magnetic resistance, and the vertical There was a drawback that the leakage magnetic field from the deflection coils 6 1 and 6 2 was not effectively used to form a pink tension magnetic field on the side of the funnel opening.
本発明は前述した欠点に鑑みなされたものであ
り、垂直偏向コイルからの漏れ磁界を有効に磁界
吸収体を介して磁界漏洩体に導き、フアンネル開
口部側で極めて有効にピンクツシヨン磁界を形成
することが可能な偏向ヨークを提供することを目
的としている。 The present invention has been made in view of the above-mentioned drawbacks, and has an object to effectively guide the leakage magnetic field from the vertical deflection coil to the magnetic field leakage body through the magnetic field absorber, and to form a pink tension magnetic field extremely effectively on the funnel opening side. The purpose is to provide a deflection yoke that is capable of
次に本発明の偏向ヨークの一実施例を第８図乃
至第１０図によつて説明する。 Next, an embodiment of the deflection yoke of the present invention will be described with reference to FIGS. 8 to 10.
即ち管軸（Ｚ−Ｚ）方向に水平軸（Ｘ−Ｘ）に
沿つて半分に切断されたコア１５1，１５2を結合
して、それぞれのコア１５1，１５2の垂直軸（Ｙ
−Ｙ）方向にトロイダル垂直コイル１６1，１６2
を巻回して垂直偏向コイルとし、この垂直偏向コ
イル１６1，１６2に支持体１７を介してサドル形
水平コイル１８1，１８2が装着されており、更に
一対のトロイダル形垂直偏向コイル１６1，１６2
の一部及びその間のコア１５1，１５2の一部に
かゝるように磁界吸収体１９1，１９2を配置す
る。この磁界吸収体１９1，１９2を配置した部分
は従来の偏向ヨークと同じく垂直偏向コイル１６
１，１６2それぞれによつて発生する磁束が反撥し
合つている所であり、両垂直偏向コイル１６1，
１６2によつて発生する磁界が強く、漏れ磁界を
最も効率よく拾うことが出来る。次にこの磁界吸
収体１９1，１９2のそれぞれの両端にはフアンネ
ル側にカラー受像管の矩形スクリーンの隅部に対
応する位置に突出するアーム状の磁界漏洩体２０
１，２０2及び２０3，２０4を一体に形成され、補
助偏向器２１を構成する。従つて磁界漏洩体２０
１，２０2，２０3，２０4には垂直偏向磁界と同期
した磁界が発生し、従来の偏向ヨークと同様にバ
レル分布磁界をピンクツシヨン磁界方向へ補正す
ることが可能であり、この補助偏向器２１は硅素
鋼板やパーマロイなどの高透磁率材料からなる磁
性体で形成されており、その展開形状は第１０図
に示すように磁界吸収体１９1，１９2の磁界漏洩
体２０1，２０2，２０3，２０4と反対側即ちネツ
ク開口部側の幅（l3）を磁界漏洩体の幅（l4）よ
り狭くなるように形成し、第９図に示すように一
対の磁界吸収体１９1，１９2間の平均距離（d3）
と、これら磁界吸収体１９1，１９2からの磁界漏
洩体２０1，２０3間の平均距離（d4）との関係を
d3d4とするようにすると、垂直偏向コイル１６
１，１６2からの漏れ磁界は磁界吸収体１９1，１
９2の端部間でシヨートされることなく、磁界漏
洩体１０1と１０3及び１０2と１０4間に供給され
ることになり、垂直偏向コイル１６1，１６2から
の漏れ磁界を磁界吸収体１９1，１９2を介して磁
界漏洩体２０1，２０2，２０3，２０4に導きフア
ンネル開口側で極めて有効にバレル形磁界をピン
クツシヨン磁界方向に変化させることが可能とな
る。 That is , the cores 15 1 , 15 2 cut in half along the horizontal axis (X-X) in the tube axis (Z-Z ) direction are combined, and the vertical axis (Y
-Y) direction toroidal vertical coils 16 1 , 16 2
are wound to form vertical deflection coils, and saddle-shaped horizontal coils 18 1 , 18 2 are attached to these vertical deflection coils 16 1 , 16 2 via supports 17 , and a pair of toroidal-shaped vertical deflection coils 16 1 are further attached. ,16 2
Magnetic field absorbers 19 1 and 19 2 are arranged so as to cover a part of the cores 15 1 and 15 2 between them. The part where the magnetic field absorbers 19 1 and 19 2 are arranged is the same as the conventional deflection yoke, with the vertical deflection coil 16
This is where the magnetic flux generated by each of the vertical deflection coils 16 1 and 16 2 repel each other, and both vertical deflection coils 16 1 ,
The magnetic field generated by 16 2 is strong and can pick up leakage magnetic fields most efficiently. Next, at both ends of each of the magnetic field absorbers 19 1 and 19 2 , there are arm-shaped magnetic field leakage bodies 20 protruding from the funnel side at positions corresponding to the corners of the rectangular screen of the color picture tube.
1 , 20 2 and 20 3 , 20 4 are integrally formed to constitute an auxiliary deflector 21 . Therefore, the magnetic field leakage body 20
A magnetic field synchronized with the vertical deflection magnetic field is generated at 1 , 20 2 , 20 3 , and 20 4 , and it is possible to correct the barrel distributed magnetic field in the direction of the pink tension magnetic field, similar to the conventional deflection yoke, and this auxiliary deflector 21 is made of a magnetic material made of a high magnetic permeability material such as a silicon steel plate or permalloy , and its developed shape is as shown in FIG . , 20 3 , 20 4 , that is, the width (l 3 ) on the neck opening side is formed to be narrower than the width (l 4 ) of the magnetic field leakage body, and as shown in FIG. 9, a pair of magnetic field absorbers are formed. Average distance between 19 1 and 19 2 (d 3 )
The relationship between _ _
If d 3 d 4 , the vertical deflection coil 16
The leakage magnetic field from 1 , 16 2 is the magnetic field absorber 19 1 , 1
The magnetic field is supplied between the magnetic field leakage bodies 10 1 and 10 3 and 10 2 and 10 4 without being shot between the ends of the vertical deflection coils 16 1 and 16 2 . It is possible to very effectively change the barrel-shaped magnetic field toward the pink tension magnetic field by guiding it to the magnetic field leaking bodies 20 1 , 20 2 , 20 3 , and 20 4 through the absorbers 19 1 and 19 2 on the funnel opening side.
この様な構造にすることにより、コンバーゼン
スにはほとんど影響を与えることなく、ラスター
歪のみ極めて有効に補正可能となるため、特にラ
スター歪の大きい広角カラー受像管に最適であ
る。 By adopting such a structure, only raster distortion can be corrected very effectively with almost no effect on convergence, so it is particularly suitable for wide-angle color picture tubes with large raster distortion.
前記実施例においては補助偏向器２１を第１０
図に示すような展開形状のものを使用したがこれ
に限定されるものではなく、第１１図に示すよう
に磁界吸収体２９と磁界漏洩体３０1，３０2との
側面を直線状にl5＜l6となるように形成してもよ
いし、要は偏向ヨークに組み込んだ時相対設する
磁界吸収体間の平均距離を相対設する磁界漏洩体
間の平均距離より大きくなるようにし垂直偏向コ
イルによる漏れ磁界を有効に磁界漏洩体に導き得
ればよい。 In the above embodiment, the auxiliary deflector 21 is the 10th
Although the developed shape shown in the figure is used, the present invention is not limited to this.As shown in FIG . It may be formed so that 5 < l 6 , and the point is that when incorporated into the deflection yoke, the average distance between the magnetic field absorbers installed relative to each other is larger than the average distance between the magnetic field leakage objects installed vertically. It is only necessary to effectively guide the leakage magnetic field caused by the deflection coil to the magnetic field leakage body.
上述のように本発明の偏向ヨークによれば、特
にラスター歪の大きいカラー受像管をコンバーゼ
ンスはほとんど影響を与えることなく、ラスター
歪のみ極めて有効に補正可能であり、その工業的
価値は極めて大である。 As mentioned above, according to the deflection yoke of the present invention, only the raster distortion can be corrected very effectively, with almost no effect on convergence, especially in color picture tubes with large raster distortion, and its industrial value is extremely large. be.
第１図はインライン形電子銃を内装するカラー
受像管のセルフコンバーゼンス方式における偏向
磁界を示す図、第２図は第１図の場合のラスター
歪を示す図、第３図は第１図の垂直偏向磁界と垂
直偏向コイルの関係を示す図、第４図乃至第７図
は従来の偏向装置を示す図であり、第４図は一部
切欠側面図、第５図は第４図とは別な方向から見
た側面図、第６図は磁界漏洩体による垂直偏向磁
界の変化を示す説明図、第７図は第４図及び第５
図の偏向ヨークに使用する補助偏向器の展開形状
を示す図、第８図乃至第１０図は本発明の偏向ヨ
ークの一実施例を示す図であり第８図は一部切欠
側面図、第９図は第８図とは別な方向から見た側
面図、第１０図は補助偏向器の展開形状を示す
図、第１１図は本発明の他の実施例に適応する補
助偏向器の展開形状を示す図である。
５1，５2，１５1，１５2……コア、６1，６2，
１６1，１６2……垂直偏向コイル、７，１７……
支持体、８1，８2，１８1，１８2……水平偏向コ
イル、９1，９2，１９1，１９2，２９……磁界吸
収体、１０1，１０2，１０3，１０4，２０1，２０
２，２０3，２０4，３０1，３０2……磁界漏洩体。
Figure 1 is a diagram showing the deflection magnetic field in the self-convergence method of a color picture tube equipped with an in-line electron gun, Figure 2 is a diagram showing raster distortion in the case of Figure 1, and Figure 3 is a diagram perpendicular to Figure 1. Figures 4 to 7 are diagrams showing the relationship between the deflection magnetic field and the vertical deflection coil, and Figures 4 to 7 are diagrams showing conventional deflection devices. Figure 4 is a partially cutaway side view, and Figure 5 is a diagram different from Figure 4. 6 is an explanatory diagram showing changes in the vertical deflection magnetic field due to the magnetic field leakage body, and FIG. 7 is a side view seen from the direction shown in FIG.
8 to 10 are views showing an embodiment of the deflection yoke of the present invention, and FIG. 8 is a partially cutaway side view, and FIG. FIG. 9 is a side view seen from a different direction from FIG. 8, FIG. 10 is a diagram showing the expanded shape of the auxiliary deflector, and FIG. 11 is an expanded view of the auxiliary deflector adapted to another embodiment of the present invention. It is a figure showing a shape. 5 1 , 5 2 , 15 1 , 15 2 ... core, 6 1 , 6 2 ,
16 1 , 16 2 ... Vertical deflection coil, 7, 17 ...
Support body, 8 1 , 8 2 , 18 1 , 18 2 ... Horizontal deflection coil, 9 1 , 9 2 , 19 1 , 19 2 , 29 ... Magnetic field absorber, 10 1 , 10 2 , 10 3 , 10 4 ,20 1 ,20
2 , 20 3 , 20 4 , 30 1 , 30 2 ... Magnetic field leakage body.
Claims (1)
のネツクからフアンネルにかけての外壁に配設さ
れ、コアと、バレル形偏向磁界を発生する垂直偏
向コイルと、ピンクツシヨン形偏向磁界を発生す
る水平偏向コイルと、前記垂直偏向コイルの漏れ
磁界の強い位置に配設された一対の磁界吸収体
と、この磁界吸収体のそれぞれから前記カラー受
像管の矩形スクリーンの隣接する隅部に対応する
位置に突出させた磁界漏洩体とからなる偏向ヨー
クに於て、前記一対の磁界吸収体の相対設する平
均距離が前記一対の磁界吸収体からの相対設する
磁界漏洩体間の平均距離より大なことを特徴とす
る偏向ヨーク。1. A core, a vertical deflection coil that generates a barrel-shaped deflection magnetic field, and a horizontal deflection coil that generates a pink-tension deflection magnetic field, which are disposed on the outer wall from the neck to the funnel of a color picture tube containing an in-line electron gun; A pair of magnetic field absorbers disposed at positions where the leakage magnetic field of the vertical deflection coil is strong, and a magnetic field projected from each of the magnetic field absorbers to positions corresponding to adjacent corners of the rectangular screen of the color picture tube. A deflection yoke comprising a leakage body is characterized in that the average distance between the pair of magnetic field absorbers is larger than the average distance between the pair of magnetic field absorbers and the magnetic field leakage bodies installed opposite each other. deflection yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1659680A JPS56116255A (en) | 1980-02-15 | 1980-02-15 | Deflecting yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1659680A JPS56116255A (en) | 1980-02-15 | 1980-02-15 | Deflecting yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56116255A JPS56116255A (en) | 1981-09-11 |
| JPS6318299B2 true JPS6318299B2 (en) | 1988-04-18 |
Family
ID=11920659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1659680A Granted JPS56116255A (en) | 1980-02-15 | 1980-02-15 | Deflecting yoke |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56116255A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429293A (en) * | 1983-05-13 | 1984-01-31 | Rca Corporation | Pincushion raster corrector distortion with improved performance |
-
1980
- 1980-02-15 JP JP1659680A patent/JPS56116255A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56116255A (en) | 1981-09-11 |
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