JPH0126146B2 - - Google Patents
Info
- Publication number
- JPH0126146B2 JPH0126146B2 JP58131531A JP13153183A JPH0126146B2 JP H0126146 B2 JPH0126146 B2 JP H0126146B2 JP 58131531 A JP58131531 A JP 58131531A JP 13153183 A JP13153183 A JP 13153183A JP H0126146 B2 JPH0126146 B2 JP H0126146B2
- Authority
- JP
- Japan
- Prior art keywords
- deflection yoke
- magnets
- picture tube
- guns
- screen
- 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
- 238000003702 image correction Methods 0.000 claims description 9
- 239000012141 concentrate Substances 0.000 claims description 2
- 238000010894 electron beam technology Methods 0.000 description 8
- 230000005415 magnetization Effects 0.000 description 7
- 230000003068 static effect Effects 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 241000226585 Antennaria plantaginifolia Species 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method 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
- H01J29/702—Convergence correction arrangements therefor
- H01J29/703—Static convergence systems
Description
【発明の詳細な説明】
産業上の利用分野
本発明はインライン型カラー受像管の画像補正
装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an image correction device for an in-line color picture tube.
従来技術
一般に、カラーテレビジヨン受像機、カラーデ
イスプレイ装置等のインライン型カラー受像管に
おいては、３つの電子銃（３ガン）から個々に出
射されたＲ（RED）、Ｇ（GREEN）、Ｂ（BLUE）
の３色の電子ビームが互いに異なる入射角で受像
管のスクリーン上において集束し且つ集中（コン
バーゼンス）することが必要である。Prior Art In general, in an in-line color picture tube for color television receivers, color display devices, etc., R (RED), G (GREEN), and B (BLUE) are individually emitted from three electron guns (3 guns). )
It is necessary for the electron beams of the three colors to be focused and concentrated (convergence) on the screen of the picture tube at mutually different angles of incidence.
このため、従来のインライン型３ガンカラー受
像管においては、３電子ビームのスクリーン上に
おける良好な集中を得るために３ガン及びスクリ
ーン間に設けられた偏向ヨークの水平偏向磁界を
強いピンクツシヨン形（糸巻形）磁界、垂直偏向
磁界を強いバレル形（ビール樽形）磁界に形成
し、これらの磁界により上記互いに入射角の異な
る３ビームの進行方向を変えてスクリーン上で一
致集中させるようにしている。 For this reason, in conventional in-line three-gun color picture tubes, in order to obtain good concentration of the three electron beams on the screen, the horizontal deflection magnetic field of the deflection yoke provided between the three guns and the screen is applied in a strong pink tension type (pincushion type). The vertical deflection magnetic field is formed into a strong barrel-shaped (beer barrel-shaped) magnetic field, and these magnetic fields change the traveling directions of the three beams with different incident angles so that they are focused on the screen.
しかるに、インライン型３ガンの水平軸と偏向
ヨーク磁界の水平軸とは組付技術上予め完全に一
致させるのは困難であり、このままだと上記集中
（コンバーゼンス）を行ないえず３色画像のずれ
（ミスコンバーゼンス）を生ずる不都合が発生し
てしまう。従つてこの不都合を解消するため、従
来、３ガン及び偏向ヨーク間に更にマグネツトを
設けて上記ミスコンバーゼンスを補正するように
したものがあり、以下この従来例（特公昭57−
30262号公報「コンバーゼンス装置」）につき第１
図、第２図Ａ，Ｂ、第３図を併せて説明する。 However, due to assembly technology, it is difficult to make the horizontal axis of the in-line 3-gun and the horizontal axis of the deflection yoke magnetic field perfectly match in advance, and if this continues, the above-mentioned convergence will not be possible and the three-color image will shift. Inconveniences such as (misconvergence) occur. Therefore, in order to eliminate this inconvenience, there is a conventional method in which a magnet is further provided between the three guns and the deflection yoke to correct the above misconvergence.
No. 30262 “Convergence device”)
FIG. 2, FIGS. 2A and B, and FIG. 3 will be explained together.
第１図中、受像管アツセンブリ１は、受像管２
（スクリーン２ａ、ネツク２ｂを有する）のネツ
ク２ｂに、３ガン３（３−Ｒ，３−Ｇ，３−Ｂよ
りなる）とスタテイツクコンバーゼンス装置４と
偏向ヨーク５とを有する。スタテイツクコンバー
ゼンス装置４は一組の２極マグネツト６と一組の
６極マグネツト７と二組の４極マグネツト８−
１，８−２とを組合せてなる。２極マグネツト６
はスクリーン中央部の色純度調整用に用いられ、
又６極マグネツト７はスクリーン中央部における
３ガン３からの両サイド電子ビームＲ，Ｂとセン
ター電子ビームＧとのコンバーゼンス調整用に用
いられる。又二組の４極マグネツト８−１，８−
２は第２図の如く、４極磁界が発生するよう予め
着磁されており、この磁界により水平軸上の両サ
イド電子ビームＲ，Ｂに互いに逆方向に移動する
力を発生させる。尚各組のマグネツト６，７，８
−１，８−２は夫々２枚のマグネツト板が一組と
なつており、２枚のマグネツト板の互いの回転角
度を変えることにより、電子ビームの移動量を変
えることができ、又２枚のマグネツト板を同一方
向へ回転させることにより、電子ビームの移動方
向を任意に変えることができる。 In FIG. 1, a picture tube assembly 1 is a picture tube assembly 1.
The net 2b (having a screen 2a and a net 2b) has three guns 3 (consisting of 3-R, 3-G, and 3-B), a static convergence device 4, and a deflection yoke 5. The static convergence device 4 includes one set of two-pole magnets 6, one set of six-pole magnets 7, and two sets of four-pole magnets 8-.
1, 8-2 in combination. 2 pole magnet 6
is used to adjust the color purity in the center of the screen.
Further, the hexapole magnet 7 is used to adjust the convergence between the electron beams R and B on both sides from the three guns 3 and the center electron beam G at the center of the screen. Also, two sets of 4-pole magnets 8-1, 8-
2 is magnetized in advance to generate a quadrupole magnetic field, as shown in FIG. 2, and this magnetic field generates a force that moves both side electron beams R and B on the horizontal axis in opposite directions. In addition, each set of magnets 6, 7, 8
-1 and 8-2 each consist of a set of two magnetic plates, and by changing the mutual rotation angle of the two magnetic plates, the amount of movement of the electron beam can be changed. By rotating the magnetic plates in the same direction, the moving direction of the electron beam can be changed arbitrarily.
ここで、インライン３ガン３−Ｒ，３−Ｇ，３
−Ｂの水平軸が偏向ヨーク５の水平軸に対して角
度θ1左回転してセツトされた場合、ビームＲ及び
ビームＢは夫々Ｚ軸に対し上側及び下側の径路を
通過して第３図Ａの如く、３ビームＲ，Ｇ，Ｂの
水平軸が上記回転角度θ1を保つたまま進行する。
そして、４極マグネツト８−１，８−２がないと
仮定した場合には、第３図Ａの如く、Ｒ（赤）、Ｇ
（緑）、Ｂ（青）の各ビームは偏向ヨーク５の水平
偏向磁界Ｕにより夫々FHR，FHG，FHBの偏向方向
力を受け且つ垂直偏向磁界Ｖにより夫々FVR，
FVG，FVBの力を受け、スクリーン２ａ上では第３
図Ｂの如く、赤の横線では両側が垂れ下がり且つ
青の横線では両側が跳ね上るようなミスコンバー
ゼンスを発生する。 Here, inline 3 guns 3-R, 3-G, 3
When the horizontal axis of -B is rotated counterclockwise by an angle θ 1 with respect to the horizontal axis of the deflection yoke 5, beam R and beam B pass through the upper and lower paths with respect to the Z axis, respectively, and the third As shown in Figure A, the horizontal axes of the three beams R, G, and B advance while maintaining the rotation angle θ 1 .
If it is assumed that there are no quadrupole magnets 8-1 and 8-2, R (red), G
(green) and B (blue) beams are subjected to deflection forces F HR , F HG , F HB , respectively, by the horizontal deflection magnetic field U of the deflection yoke 5, and F VR , F HB , respectively by the vertical deflection magnetic field V.
Under the force of F VG and F VB , the third
As shown in Figure B, a misconvergence occurs in which both sides of the red horizontal line hang down and both sides of the blue horizontal line jump up.
しかるに、４極マグネツト８−１，８−２があ
ると、第４図中、ガン３−Ｒから出射されたビー
ムＲはＰ位置において、第１の４極マグネツト８
−１により第２図の原理により下方向の力を受け
R′の方向に進行し、且つ同図中ガン３−Ｂから
出射されたビームＢは同じく第１の４極マグネツ
ト８−１により上方向の力を受けてB′の方向に
進行する。その後第４図中ビームR′はＱ位置に
おいて第２の４極マグネツト８−２により今度は
上方向の力を受け且つビームＢは第２の４極マグ
ネツト８−２により今度は下方向の力を受け、
夫々R″，B″の方向に進行する。その結果３個の
電子ビームＲ，Ｇ，Ｂはスクリーン２ａの中央部
では一致集中しうる状態とされる。そして全体と
して第５図（第４図のＴ位置における断面図）の
如く、ビームＲ，Ｇ，Ｂの水平軸が偏向ヨーク５
の磁界の水平軸に対し微少角度θ2だけ（但しθ2＜
θ1）左回転した状態に補正され、即ちスタテイツ
クコンバーゼンスを取られて第４図中Ｔ位置で偏
向ヨーク５の磁界内に進入する。しかる後ビーム
Ｒ，Ｇ，Ｂは偏向ヨーク５の磁界によりスクリー
ン２ａの中央部を除いた周辺部の全域にわたつて
スクリーン２ａ上に集中するようダイナミツクコ
ンバーゼンスを取られ、上記第３図Ｂのミスコン
バーゼンスが補正される。 However, if there are quadrupole magnets 8-1 and 8-2, the beam R emitted from the gun 3-R in FIG.
-1 receives a downward force according to the principle shown in Figure 2.
The beam B traveling in the direction R' and emitted from the gun 3-B in the same figure is similarly subjected to an upward force by the first quadrupole magnet 8-1 and travels in the direction B'. Thereafter, beam R' in FIG. 4 is now subjected to an upward force by the second quadrupole magnet 8-2 at position Q, and beam B is now subjected to a downward force by the second quadrupole magnet 8-2. receive,
They proceed in the directions of R″ and B″, respectively. As a result, the three electron beams R, G, and B can be concentrated at the center of the screen 2a. As a whole, as shown in FIG. 5 (cross-sectional view at position T in FIG. 4), the horizontal axes of the beams R, G, and B are aligned with the deflection yoke 5.
by a small angle θ 2 with respect to the horizontal axis of the magnetic field (where θ 2 <
θ 1 ) It is corrected to a left-rotated state, that is, static convergence is taken, and it enters the magnetic field of the deflection yoke 5 at position T in FIG. Thereafter, the beams R, G, and B are dynamically converged by the magnetic field of the deflection yoke 5 so that they are concentrated on the screen 2a over the entire peripheral area of the screen 2a except for the central area, and as shown in FIG. 3B above. Misconvergence is corrected.
ここで、ビームの水平軸の回転補正量△θ（＝
θ1−θ2）は次式で与えられる。 Here, the horizontal axis rotation correction amount △θ (=
θ 1 −θ 2 ) is given by the following equation.
△θ＝θ1−sin-1｛Ｓ（１−ｌ／Ｍ）（１−ａ／Ｌ−ｌ
／Ｗ｝
…(1)
但し、
Ｗ…第５図中、ビームＲ，Ｇ，Ｂどうしの間隔
Ｓ…第４図中、Ｐ位置に至る前のビームＲ，Ｇ，
Ｂどうしの上下方向寸法差
Ｍ…第４図中、Ｐ位置とＺ軸及びビームの交点と
の距離（マグネツト８−１，８−２の磁界強度
に反比例する）
ｌ…二組の４極マグネツト８−１，８−２間の距
離
Ｌ…Ｐ位置とスクリーン２ａとの距離
ａ…Ｑ位置とＴ位置との距離
ここで、受像管２の形状が決まれば、上記(1)式
中のＷ、Ｓ、及びｌ＋ａの値は略決定してしまう
ので、上記最大補正量△θはＭ（磁界強度に反比
例）即ちマグネツト８−１，８−２の着磁量、及
びマグネツト８−１，８−２間距離ｌによつて決
定されることになる。この最大補正量△θ及び距
離ｌの関係は第６図の如く、略比例関係となつて
おり、十分な最大補正量△θを得るには距離ｌを
大きくした方が有利であることがわかる。△θ=θ 1 −sin −1 {S(1-l/M)(1-a/L-l
/W}
...(1) However, W...In Fig. 5, the distance S between beams R, G, and B...In Fig. 4, the beams R, G, and B before reaching position P,
Dimension difference in the vertical direction between B...Distance between the P position and the intersection of the Z axis and the beam in Fig. 4 (inversely proportional to the magnetic field strength of magnets 8-1 and 8-2) l...Two sets of quadrupole magnets Distance L between 8-1 and 8-2... Distance a between P position and screen 2a... Distance between Q position and T position Here, once the shape of the picture tube 2 is determined, W in the above equation (1) , S, and l+a are almost determined, so the maximum correction amount Δθ is determined by M (inversely proportional to the magnetic field strength), that is, the amount of magnetization of the magnets 8-1 and 8-2, and the amount of magnetization of the magnets 8-1 and 8-2. -2 distance l. The relationship between the maximum correction amount △θ and the distance l is approximately proportional as shown in Fig. 6, and it can be seen that it is advantageous to increase the distance l in order to obtain a sufficient maximum correction amount △θ. .
しかるに、従来のインライン型３ガンカラー受
像管では、第１図中偏向ヨーク５の締付パツド９
が邪魔になり、しかも色純度調整のための偏向ヨ
ーク５の可動範囲を考慮しなければならず、その
ため十分な距離ｌを取ることができなかつた。従
つて十分な最大補正量△θを得るためには、マグ
ネツト８−１，８−２の着磁量を大きくしなけれ
ばならず、その結果、マグネツト８−１，８−２
が大型化してしまうという欠点があり、又着磁量
が大きいために衝撃や環境条件の変化に対し敏感
になり、調整後のコンバーゼンスがずれてしまう
という欠点があつた。 However, in the conventional in-line three-gun color picture tube, the tightening pad 9 of the deflection yoke 5 in FIG.
Moreover, the movable range of the deflection yoke 5 for color purity adjustment had to be taken into consideration, and therefore a sufficient distance l could not be obtained. Therefore, in order to obtain a sufficient maximum correction amount Δθ, it is necessary to increase the amount of magnetization of the magnets 8-1 and 8-2.
However, since the amount of magnetization is large, it becomes sensitive to shocks and changes in environmental conditions, and the convergence after adjustment may deviate.
問題点を解決するための手段
本発明は二組の４極マグネツトのうち スクリ
ーン側の一組のマグネツトを偏向ヨークの３ガン
側端部に設けて上記距離ｌを大に設定して、上記
欠点を除去したインライン型カラー受像管の画像
補正装置を提供することを目的とする。Means for Solving the Problems The present invention solves the above drawbacks by providing one set of magnets on the screen side of the two sets of 4-pole magnets at the end of the deflection yoke on the 3-gun side and setting the above-mentioned distance l large. An object of the present invention is to provide an image correction device for an in-line color picture tube that eliminates this.
そのための構成は、カラー受像管と、インライ
ン型３ガンと、該３ガンからの３ビームを夫々偏
向させ該受像管のスクリーン上に集中させる偏向
ヨークと、該３ガン及び偏向ヨーク間に配され、
該３ガンの水平軸と該偏向ヨークの水平軸との回
転誤差に起因する上記集中のミスコンバーゼンス
を補正する二組の４極マグネツトとよりなり、上
記二組の４極マグネツトのうち、該スクリーン側
の一組のマグネツトを上記偏向ヨークの該３ガン
側端部に隣接して設け、該二組のマグネツト間の
離間距離を比較的大に設定して、上記補正を十分
に行なわしめる構成としてなるものである。 The configuration for this includes a color picture tube, three in-line guns, a deflection yoke that deflects the three beams from the three guns and concentrates them on the screen of the picture tube, and a color picture tube arranged between the three guns and the deflection yoke. ,
It consists of two sets of quadrupole magnets for correcting the concentration misconvergence caused by a rotational error between the horizontal axis of the three guns and the horizontal axis of the deflection yoke, and of the two sets of quadrupole magnets, the screen A set of side magnets is provided adjacent to the end of the three guns side of the deflection yoke, and a distance between the two sets of magnets is set to be relatively large to sufficiently perform the above correction. It is what it is.
実施例
第７図は本発明になるインライン型カラー受像
管の画像補正装置の一実施例を適用した受像管ア
ツセンブリの側面図、第８図は上記画像補正装置
の分解斜視図であり、第７図中、第１図と同一部
分には同一符号を付してその説明を省略する。Embodiment FIG. 7 is a side view of a picture tube assembly to which an embodiment of the in-line color picture tube image correction device of the present invention is applied, and FIG. 8 is an exploded perspective view of the image correction device. In the figure, the same parts as in FIG. 1 are given the same reference numerals, and the explanation thereof will be omitted.
図中、受像管アツセンブリ１１の偏向ヨーク
５′はセパレータの両端１２，１３間に垂直コイ
ル１４及び水平コイル（図示せず）を配してな
り、セパレータ後端部１２は第８図の如く外側に
一のボス部１２ａ（周方向等分位置の複数の軸方
向切欠き１２ｂにより複数部分に画成される）と
周方向等分位置の複数の係合アーム部１２ｃとを
有する。尚本願の偏向ヨーク５′は従来の偏向ヨ
ーク５と略同一形状であるが、ボス部１２ａの軸
方向長が後述する４極マグネツト８−２′を取付
けるために従来より若干大としたものである。上
記偏向ヨーク５′は第７図の如く受像管２のネツ
ク２ｂに嵌合される。 In the figure, the deflection yoke 5' of the picture tube assembly 11 has a vertical coil 14 and a horizontal coil (not shown) disposed between both ends 12 and 13 of a separator, and the rear end 12 of the separator is located on the outside as shown in FIG. It has one boss portion 12a (defined into a plurality of parts by a plurality of axial notches 12b at equal positions in the circumferential direction) and a plurality of engagement arm portions 12c at equal positions in the circumferential direction. The deflection yoke 5' of the present application has approximately the same shape as the conventional deflection yoke 5, but the axial length of the boss portion 12a is slightly larger than the conventional one in order to mount a 4-pole magnet 8-2', which will be described later. be. The deflection yoke 5' is fitted into the neck 2b of the picture tube 2 as shown in FIG.
二組の４極マグネツト８−１，８−２′のうち
一組の４極マグネツト８−２′は従来の４極マグ
ネツト８−２に比して大径とされており、第８図
の如く、大なる軸長のボス部１２ａに遊嵌され複
数の係合アーム部１２ｃに該各アーム部１２ｃの
弾性変形を伴い嵌合されてセパレータの後端面１
２に当接され、該各アーム部１２ｃの先端爪部に
より係止される。尚この４極マグネツト８−２′
の組付、分解はワンタツチで行ないうる。 Of the two sets of four-pole magnets 8-1, 8-2', one set of four-pole magnets 8-2' has a larger diameter than the conventional four-pole magnet 8-2, as shown in FIG. As shown in FIG.
2, and is locked by the tip claw portion of each arm portion 12c. Furthermore, this 4-pole magnet 8-2'
Assembling and disassembling can be done with one touch.
９は締付パツドで、帯体９ａにネジ９ｂを螺合
してなり、ボス部１２ａに遊嵌された状態でネジ
９ｂを締付ける。これによりボス部１２ａの複数
部分が内方へ弾性変形され、偏向ヨーク５′はネ
ツク２ｂに締付固定される。 Reference numeral 9 denotes a tightening pad, which is formed by threading a screw 9b onto a band 9a, and tightens the screw 9b while being loosely fitted into the boss portion 12a. As a result, the plurality of portions of the boss portion 12a are elastically deformed inward, and the deflection yoke 5' is tightened and fixed to the neck 2b.
その他のマグネツト６，８−１，７の取付位置
は従来例と同様である。 The other mounting positions of the magnets 6, 8-1, and 7 are the same as in the conventional example.
従つて、本願の構成では、二組の４極マグネツ
ト８−１，８−２′のうち スクリーン側の４極
マグネツト８−２′を締付バンド９より更にスク
リーン側の偏向ヨーク５′のセパレータ１２端面、
即ち偏向ヨーク５′の３ガン側端部に隣接して設
けているため、４極マグネツト８−１，８−２′
間の離間寸法l′は従来の寸法ｌに比してかなり大
となる（l′＞ｌ）。 Therefore, in the configuration of the present application, of the two sets of 4-pole magnets 8-1 and 8-2', the 4-pole magnet 8-2' on the screen side is connected to the separator of the deflection yoke 5' on the screen side further than the tightening band 9. 12 end faces,
That is, since it is provided adjacent to the 3-gun side end of the deflection yoke 5', the 4-pole magnets 8-1, 8-2'
The distance l' between them is considerably larger than the conventional dimension l (l'>l).
又本願においても、３ガン３，３−Ｇ，３−Ｂ
の水平軸と偏向ヨーク５′の水平軸との回転誤差
がある場合において、従来例と同様に二組の４極
マグネツト８−１，８−２′によりスタテイツク
コンバーゼンスを取ることができる。 Also in this application, 3 guns 3, 3-G, 3-B
When there is a rotational error between the horizontal axis of the deflection yoke 5' and the horizontal axis of the deflection yoke 5', static convergence can be achieved by the two sets of quadrupole magnets 8-1 and 8-2', as in the conventional example.
この場合、上記(1)式中のｌに相当するl′の値を
上記理由により従来例の場合（15mm程度）よりか
なり大きく30mm程度まで取ることができ約２倍と
しうる。これにより逆にマグネツト８−１，８−
２′の着磁量は従来例の約1/2とすることができ、
この状態で十分な最大補正量△θを得ることがで
きる。従つて、マグネツト８−１，８−２′を小
型化でき全体も小型化でき、又マグネツト８−
１，８−２′の着磁量が少ないので衝撃や環境条
件の変化に対するコンバーゼンスの変化を低減し
うる。 In this case, the value of l', which corresponds to l in the above formula (1), can be set to about 30 mm, which is considerably larger than that of the conventional example (about 15 mm), and can be about twice that of the conventional example (about 15 mm). As a result, the magnets 8-1, 8-
The amount of magnetization at 2' can be reduced to about 1/2 of that of the conventional example,
In this state, a sufficient maximum correction amount Δθ can be obtained. Therefore, the magnets 8-1, 8-2' can be made smaller and the whole can be made smaller, and the magnets 8-1 and 8-2' can also be made smaller.
Since the amount of magnetization of 1,8-2' is small, changes in convergence due to impact or changes in environmental conditions can be reduced.
上述の如く、本発明になるインライン型カラー
受像管の画像補正装置によれば、二組の４極マグ
ネツトのうちスクリーン側の一組のマグネツトを
偏向ヨークの３ガン側端部に隣接して設けて二組
の４極マグネツト間の離間距離を大としているた
め、上記各マグネツトにより３ガン及び偏向ヨー
クの各水平軸の回転誤差に起因するミスコンバー
ゼンスを補正をするに際して、各マグネツトの着
磁量を低減しうるのでマグネツト及び全体を小型
且つ軽量化しうると共に、衝撃や環境条件の変化
に対してもコンバーゼンスの低下を招くことなく
性能を向上しえ、工業的価値がきわめて大きい等
の特長を有する。 As described above, according to the image correction device for an in-line color picture tube according to the present invention, of the two sets of quadrupole magnets, one set of magnets on the screen side is provided adjacent to the 3-gun side end of the deflection yoke. Since the separation distance between the two sets of 4-pole magnets is large, the amount of magnetization of each magnet is The magnet and the entire magnet can be made smaller and lighter, and the performance can be improved without causing a decrease in convergence even in response to shocks or changes in environmental conditions, and has extremely large industrial value. .
第１図はインライン型カラー受像管の画像補正
装置の従来例を適用した受像管アツセンブリの側
面図、第２図は上記受像管アツセンブリの４極マ
グネツトの磁界の説明図、第３図Ａ，Ｂは夫々上
記受像管アツセンブリの偏向ヨークの磁界の説明
図及びそのスクリーンにおけるミスコンバーゼン
ス状態を説明する図、第４図は上記受像管アツセ
ンブリの動作を説明するための側面図、第５図は
上記受像管アツセンブリでビームが偏向磁界へ進
入する際の状態を説明する図、第６図は上記受像
管アツセンブリで３ガンから出射した３ビームの
水平軸の３ガンの水平軸からの回転補正量が二組
の４極マグネツトの離間距離に応じて変化する状
態を説明する図、第７図は本発明になるインライ
ン型カラー受像管の画像補正装置の一実施例を適
用した受像管アツセンブリの側面図、第８図は上
記画像補正装置の分解斜視図である。
１，１１……インライン型カラー受像管アツセ
ンブリ、２……受像管、３（３−Ｒ，３−Ｇ，３
−Ｂ）……３ガン、４，４′……スタテイツクコ
ンバーゼンス装置、５，５′……偏向ヨーク、８
−１，８−２，８−２′……４極マグネツト、９
……締付バンド、１２……セパレータ、１２ａ…
…ボス部、１２ｂ……係合アーム部。
Fig. 1 is a side view of a picture tube assembly to which a conventional example of an in-line color picture tube image correction device is applied, Fig. 2 is an explanatory diagram of the magnetic field of the quadrupole magnet of the picture tube assembly, and Figs. 3A and B. 4 is a side view illustrating the operation of the picture tube assembly, and FIG. Fig. 6 is a diagram explaining the state when the beam enters the deflection magnetic field in the tube assembly. FIG. 7 is a side view of a picture tube assembly to which an embodiment of the in-line color picture tube image correction device of the present invention is applied. FIG. 8 is an exploded perspective view of the image correction device. 1, 11... In-line color picture tube assembly, 2... Picture tube, 3 (3-R, 3-G, 3
-B)...3 guns, 4, 4'...static convergence device, 5,5'...deflection yoke, 8
-1, 8-2, 8-2'...4-pole magnet, 9
...Tightening band, 12...Separator, 12a...
...Boss part, 12b...Engagement arm part.
Claims (1)
３ガンからの３ビ−ムを夫々偏向させ該受像管の
スクリーン上に集中させる偏向ヨークと、該３ガ
ン及び偏向ヨーク間に配され、該３ガンの水平軸
と該偏向ヨークの水平軸との回転誤差に起因する
上記集中のミスコンバーゼンスを補正する二組の
４極マグネツトとよりなり、上記二組の４極マグ
ネツトのうち該スクリーン側の一組のマグネツト
を上記偏向ヨークの該３ガン側端部に隣接して設
け、該二組のマグネツト間の離間距離を比較的大
に設定して、上記補正を十分に行なわしめる構成
としてなることを特徴とするインライン型カラー
受像管の画像補正装置。1 a color picture tube, an in-line type 3 gun, a deflection yoke that deflects the 3 beams from the 3 guns and concentrates them on the screen of the picture tube, and a deflection yoke disposed between the 3 guns and the deflection yoke; It consists of two sets of quadrupole magnets that correct the above-mentioned concentration misconvergence caused by a rotational error between the horizontal axis of the three guns and the horizontal axis of the deflection yoke. A set of magnets is provided adjacent to the end of the deflection yoke on the three-gun side, and a distance between the two sets of magnets is set to be relatively large, so that the above correction is sufficiently performed. An in-line color picture tube image correction device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13153183A JPS6023937A (en) | 1983-07-19 | 1983-07-19 | Picture correction device of inline type color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13153183A JPS6023937A (en) | 1983-07-19 | 1983-07-19 | Picture correction device of inline type color picture tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6023937A JPS6023937A (en) | 1985-02-06 |
| JPH0126146B2 true JPH0126146B2 (en) | 1989-05-22 |
Family
ID=15060247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13153183A Granted JPS6023937A (en) | 1983-07-19 | 1983-07-19 | Picture correction device of inline type color picture tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6023937A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0239866U (en) * | 1988-09-02 | 1990-03-16 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4654616A (en) * | 1985-09-30 | 1987-03-31 | Rca Corporation | Blue bow correction for CRT raster |
| KR930000223Y1 (en) * | 1990-10-24 | 1993-01-18 | 삼성전관주식회사 | Magnet structure for convergence calribration |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5324726A (en) * | 1976-08-20 | 1978-03-07 | Hitachi Ltd | Color receiving tube |
| JPS5730262A (en) * | 1980-07-31 | 1982-02-18 | Tokyo Shibaura Electric Co | Method of producing bulb |
| JPS57180286A (en) * | 1981-04-30 | 1982-11-06 | Hitachi Ltd | In-line color picture tube device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5817324Y2 (en) * | 1978-10-25 | 1983-04-08 | 株式会社日立製作所 | deflection yoke |
| JPS56150057U (en) * | 1980-04-11 | 1981-11-11 |
-
1983
- 1983-07-19 JP JP13153183A patent/JPS6023937A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5324726A (en) * | 1976-08-20 | 1978-03-07 | Hitachi Ltd | Color receiving tube |
| JPS5730262A (en) * | 1980-07-31 | 1982-02-18 | Tokyo Shibaura Electric Co | Method of producing bulb |
| JPS57180286A (en) * | 1981-04-30 | 1982-11-06 | Hitachi Ltd | In-line color picture tube device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0239866U (en) * | 1988-09-02 | 1990-03-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6023937A (en) | 1985-02-06 |
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