JPS60189845A - Deflection york - Google Patents
Deflection yorkInfo
- Publication number
- JPS60189845A JPS60189845A JP4512084A JP4512084A JPS60189845A JP S60189845 A JPS60189845 A JP S60189845A JP 4512084 A JP4512084 A JP 4512084A JP 4512084 A JP4512084 A JP 4512084A JP S60189845 A JPS60189845 A JP S60189845A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- correction
- eddy current
- deflection
- magnetic
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
-
- 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
Description
【発明の詳細な説明】
産業上の利用分野
本発明は偏向ヨークに係り、特にインライン配置の３木
の電子銃を有するカラー受像管に用いられる偏向ヨーク
に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a deflection yoke, and more particularly to a deflection yoke used in a color picture tube having three in-line electron guns.
従来技術
一般に、インライン型のカラー受像装置１は、第１図に
示すように、カラー受像管２に偏向ヨーク３を組付けて
なる４ｉ４成である。偏向ヨーク３は、セパレータ４の
外側の上下側に垂直偏向コイル５ａ、５ｂ、セパレータ
４の内側の左右側に第２図に示す水平偏向コイル６ａ
、６ｂを設けた構成である。BACKGROUND OF THE INVENTION In general, an in-line type color image receiving apparatus 1 is of a 4i4 configuration in which a deflection yoke 3 is assembled to a color picture tube 2, as shown in FIG. The deflection yoke 3 has vertical deflection coils 5a, 5b on the upper and lower sides outside the separator 4, and horizontal deflection coils 6a shown in FIG. 2 on the left and right sides inside the separator 4.
, 6b are provided.
水平偏向コイル６ａ 、６ｂには、第３図に示す鋸歯状
波形ａの水平偏向電流が加えられ、偏向ヨーク３内に垂
直方向の磁束群よりなる水平偏向磁界７が発生し、ネッ
ク２ａ内の電子銃より出射された電子ビームＲ，Ｇ、Ｂ
が水平方向に変更されてスクリーン２ｂ上を左から右方
向へ走査しつ）スクリーン２ｂの左上部から順次右下部
へ走Ｍ丈る。なお第２図は第１図中■−■線に沿う拡大
断ｍ１矢視図であり、以ｊ（第２図に似た図は全てスク
リーン２１１側よりみた図である。また、第２図は、下
方に向く磁束が減少しつ）あり、蛍光面２Ｃ上のビーム
スボッ（・がスクリーン２１１の左側端より中火に向か
って移動しつ）ある途中の状態を示１゜ところで、カラ
ー受像管２は、第１図に示ｔ Ｊ：うに、この内部Ｃ−
ｎ ’）水平変更磁界７内に、全Ｃ全屈製である電子銃
の篩部８．ゲッタ９．及びゲッタ支持板１０（以下金属
部品ともいう）を有する。これらは、偏向ヨーク３をＪ
Ｊ準にしてみると、水平偏向コイル６ａ 、６ｂが相対
向する面（水平軸Ｘで示Ｊ）に対して、偏向」−り１の
中心０点−（直交Ｊる垂直軸Ｙ上に配されている。A horizontal deflection current having a sawtooth waveform a as shown in FIG. Electron beams R, G, B emitted from the electron gun
is changed in the horizontal direction and scans the screen 2b from left to right, and then sequentially moves from the upper left to the lower right of the screen 2b. Note that FIG. 2 is an enlarged cross-sectional view taken along the line ■-■ in FIG. 1° shows a state in which the downward magnetic flux is decreasing) and the beam spot on the phosphor screen 2C is moving from the left end of the screen 211 toward the medium flame. 2 is shown in Figure 1.
n') In the horizontally changing magnetic field 7, the sieve part 8 of the electron gun, which is made of all-C, is placed in the horizontally changing magnetic field 7. Getta 9. and a getter support plate 10 (hereinafter also referred to as metal component). These are the deflection yoke 3
In terms of J, the horizontal deflection coils 6a and 6b face each other (indicated by the horizontal axis has been done.
金属部品８．９．１０に交流の水平偏向磁界７が印加さ
れると、これらに渦電流が発生し、この渦電流により渦
電流磁界が水平偏向磁界を形成している垂直方向磁束の
変化を妨げるにうに発生り−る。When an alternating current horizontal deflection magnetic field 7 is applied to metal parts 8.9.10, eddy currents are generated in these parts, and the eddy current magnetic field causes changes in the vertical magnetic flux forming the horizontal deflection magnetic field. There are things that will hinder you.
ビームスボッ］・がスクリーン２ｂの左端より中央−〇
移動しつ・あり、１・方に向く水平偏向磁束が減少づる
方向に変化しているときには、金属部品８．９．１０の
渦電流は第２図に示１ように水平偏向磁束を増す方向の
磁束１１ａ、１ ｌｂ、１２ａ。When the beam block] is moving from the left end of the screen 2b to the center and the horizontal deflection magnetic flux toward 1 is changing in a decreasing direction, the eddy current in the metal part 8.9.10 is As shown in the figure, magnetic fluxes 11a, 1 lb, and 12a are directed to increase the horizontal deflection magnetic flux.
１２１１を発生し、金属部品８及び金属部品９゜１０の
周囲には夫々渦電流磁界１３．１４が形成される。また
ビームスボッ１−がスクリーン２ｂの中央を通過し史に
これを右方に移動さけるときには、水平偏向磁束は方向
が反転して上方に向き、徐々に増加゛する。この場合に
は、金属部品８，９゜１０の渦電流は、この水平偏向磁
束を減する方向の磁束、即ち上記磁束ｔ１ａ、１１ｂ、
１２ａ。1211, and eddy current magnetic fields 13 and 14 are formed around the metal parts 8 and 9 and 10, respectively. Further, when the beam spot 1- passes through the center of the screen 2b and moves to the right, the horizontal deflection magnetic flux reverses its direction and points upward, gradually increasing. In this case, the eddy currents in the metal parts 8, 9 and 10 cause the magnetic flux in the direction that reduces this horizontal deflection magnetic flux, that is, the magnetic flux t1a, 11b,
12a.
１２ｂど同じ方向の磁束１１ａ’ 、１１１１’ 。Magnetic flux 11a', 1111' in the same direction as 12b.
１２ａ’、１２ｂ’ を発生し、金属部品８及び金属部
品９．１０の周囲には夫々上記の渦電流磁卯１３．１７
Ｉど同質の渦電流磁界１３’ 、１４’ が形成される
。即ち、偏向ヨーク３内には、本来の水平偏向磁界７に
加えて、渦電流磁界１３．１３’。12a', 12b', and the above-mentioned eddy current magnetic circles 13.17 are generated around the metal parts 8 and 9.10, respectively.
Similar eddy current magnetic fields 13' and 14' are formed. That is, in the deflection yoke 3, in addition to the original horizontal deflection magnetic field 7, there is an eddy current magnetic field 13,13'.
１４、ＩＩ’が形成されることになる。14, II' will be formed.
このため、電子ビームＲ，Ｇ、Ｂのうら特に両側の電子
ビームＲ，１３は、第４図中上ｄ；に示づように、スク
リーン２１）の上下方向中心より上方に偏向されて：Ｉ
ｒ−、右方向中心部を走査する際に、渦電流磁界１３．
１３’ により矢印Ｆ＋、Ｆ２で示す偏向力を受り、ま
た同図中下部に示Ｉにうに、スクリーン２１）の＋ｈに
偏向されて左右方向中心部を走査づる際に、；スト＾電
流磁界１４．１４’ により矢印Ｆ３．．Ｆ＜で示づ偏
向力を受ける。これにより、スクリーン２ｂにｔよ、第
５図に示づ゛にうに１上下側のＩＥイコ１ｊ向申央イ］
近に、破線丸印で間Ｉυで示すミスコンバーゼンス１５
．１６が発生ずる。Therefore, the back of the electron beams R, G, and B, particularly the electron beams R and 13 on both sides, are deflected upward from the vertical center of the screen 21), as shown in FIG.
r-, eddy current magnetic field 13. when scanning the center right direction.
13' receives deflection forces shown by arrows F+ and F2, and as shown in I at the bottom of the same figure, when the screen 21) is deflected by +h and scans the center in the left and right direction, ;sto^ current magnetic field 14.14' indicates arrow F3. ．． It receives a deflection force indicated by F<. As a result, the screen 2b is displayed as shown in FIG.
Nearby, Miss Convergence 15 is indicated by the dashed circle and the interval Iυ.
．． 16 will occur.
上記の渦電流磁界はゲッタ９の近傍で特に大となり、上
記の渦電２Ｉｔ Ｈ１ｔ界に起因するミスコンバーゼン
スはゲッタ９側で人となる。またこのミスコンバーゼン
ス１５．１６は、高級ディスプレイ装置等のように水平
偏向周波数が高くなる程顕著となって、画像品位を低下
させるものであり、補正する必要がある。The above-mentioned eddy current magnetic field becomes particularly large near the getter 9, and the misconvergence caused by the above-mentioned eddy electric 2It H1t field becomes noticeable on the getter 9 side. Further, this misconvergence 15.16 becomes more pronounced as the horizontal deflection frequency becomes higher, such as in a high-end display device, and degrades the image quality, so it is necessary to correct it.
なＪ３、上記のミスコンバーゼンス１５．１６は、垂直
偏向磁界分布を変えてなお９つ垂直偏向磁界の中心軸と
電子ビームの中心軸をノｆ右方向にずらすことで修正す
ることがＧ能ではある。しかし、この修正の結果、スク
リーンの四隅に、第６図に示すような横線のコンバーゼ
ンスずれ、即ち、左側で所謂正クロス、右側で逆クロス
というパターンが副作用的に生じてしまい、このコンバ
ーゼンスずれを更に補正づ−る必要がありこの修正方法
は生産性上採用づることは困難である。J3, the above misconvergence 15.16 can be corrected by changing the vertical deflection magnetic field distribution and shifting the center axis of the vertical deflection magnetic field and the center axis of the electron beam to the right. be. However, as a result of this correction, a convergence shift of the horizontal lines as shown in Figure 6 occurs as a side effect at the four corners of the screen, that is, a pattern of a so-called normal cross on the left side and a reverse cross on the right side, and this convergence shift is caused. Further correction is required, and this correction method is difficult to employ in terms of productivity.
問題点を解決づるための手段
そこで、本発明は上記問題点を解決した偏向ヨークを提
供することを目的どするものであり、その構成は、イン
ライン配Ｆ？の３本の電子銃を右づるカラー受像管に組
付けられて使用される偏向ヨークにおいて、該カラー受
像管に絹（＝Ｊけられた状態で該カラー受像管内の金属
部に対向Ｊる位首に、偏向磁Ｗにより該金属部に誘起さ
れる渦電流により生ずる渦電流磁界を打ち消すようζ’
ｃＷＡ界を発生さ′Ｕる磁界発生手段を備えてなる構成
としたものである。Means for Solving the Problems Therefore, it is an object of the present invention to provide a deflection yoke that solves the above-mentioned problems, and the structure thereof is an in-line arrangement F? In a deflection yoke that is used with the three electron guns attached to a right-handed color picture tube, the color picture tube is fitted with silk (=J) that faces the metal part inside the color picture tube when it is cut out. ζ' on the neck to cancel the eddy current magnetic field generated by the eddy current induced in the metal part by the deflection magnet W.
The structure includes magnetic field generating means for generating a cWA field.
実施例
第７図は本発明になる偏向ヨーク２０の−実茄例を示し
、第８図はこの偏向ヨーク２０をＩ］刊け〔なるカラー
受象装置２１を丞づ。第９図は偏向二１−り２０にＪ、
るミスコンバーぜンス補正動作を説明づる図で６９る１
、各図中、第１図及び第２図に小り（１４成部分と同一
部分には同一符号をイ」シその説明は省略り゛る。Embodiment FIG. 7 shows an actual example of the deflection yoke 20 according to the present invention, and FIG. 8 shows the deflection yoke 20 with a color receiving device 21. FIG. 9 shows J on the deflection 21-20;
A diagram explaining the misconvergence correction operation
, in each figure, the same parts as those shown in FIG. 1 and FIG.
ｑ！７図中、２２．２３は人々永久磁石であり、偏向ヨ
ーク２０の大（￥口側を囲繞゛するリング部材２７１の
保持部２／ｌａ、２４ｂ内に収納されて、偏向］−り２
０の中心Ｏを通る垂直軸Ｙ上に設りられている。この垂
直軸Ｙは水平偏向磁界７を形成りる磁束の方向と同じ方
向に延在する線である。q! In Fig. 7, reference numerals 22 and 23 are permanent magnets, which are housed in the holding parts 2/la and 24b of the ring member 271 that surrounds the large side of the deflection yoke 20, and are used for deflection.
It is placed on the vertical axis Y passing through the center O of 0. This vertical axis Y is a line extending in the same direction as the direction of the magnetic flux forming the horizontal deflection magnetic field 7.
また永久Ｉ！ｉ石２２．２３は磁極の方向をＹｌｌｌｈ
と一致した向ぎで配しである。Eien I again! i stone 22.23 has the magnetic pole direction Yllllh
It is arranged in the same direction.
特に上側の永久磁石２２は、下側がＳ極であり、磁束２
５ａ 、 ２ ！”）１１で表わされる補正磁界２Ｇを
光牛Ｊ−る。−Ｆ側の永久磁石２３は−Ｌ側がＮ極であ
り、磁束２７ａ、２７１）で表わされる補正磁界２８を
光牛Ｊる。In particular, the upper permanent magnet 22 has an S pole on the lower side, and the magnetic flux 2
5a, 2! The permanent magnet 23 on the -F side has an N pole on the -L side, and the correction magnetic field 28 expressed as magnetic fluxes 27a and 271) is applied.
」−記の偏向ヨー９２０は、第８図及び第９図に示すよ
うに、上側の永久磁石２２が金属部品８に対向し、下側
の永久磁？Ｅｉ２３が金属部品９，１０に対向して、カ
ラー受像管２に紺イ・］（）られており、補正磁界２Ｇ
は渦電流磁界１３．１３’ と重畳し、補正磁界２ε３
は渦電流磁界１４，１／ｌ’ と重畳Ｊ−る。As shown in FIGS. 8 and 9, the deflection yaw 920 shown in FIG. Ei 23 is placed in navy blue on the color picture tube 2 facing the metal parts 9 and 10, and a correction magnetic field 2G is applied.
is superimposed with the eddy current magnetic field 13.13', and the correction magnetic field 2ε3
is superimposed with the eddy current magnetic field 14,1/l'.
こ）で、補正ｖａｎ２６の磁束２５ａ、２５ｂＬＬ、前
記の渦電流磁界１３．１３’の磁束１１ａ。In this case, the magnetic fluxes 25a and 25bLL of the correction van 26 and the magnetic flux 11a of the eddy current magnetic field 13 and 13'.
１１ａ’ 、１１ｂ、１１ｂ’ と逆方向であり、電子
ビームＲ，Ｂは補正磁界２Ｇ内を通過づるどさに、前記
偏向力［箱、［−２とは逆向きで且つこれら、と等しい
大ぎさの偏向力Ｆｌ’、Ｆ２’を受りる。このため、電
子ビームＲ，Ｂは、渦電流磁界１３．１３’ ど補正磁
界２６どが徂昏している磁界内を通過覆るときには、」
−記偏向力［：１ど］：１′及び］：２とＦ２’ とが
バランスし、Ｙ軸方向へは偏向されずにＸ軸（水平方向
）に偏向され、第５図中上側のミスコンバーゼンス１５
は修正されて解消される。11a', 11b, and 11b', and as the electron beams R and B pass through the correction magnetic field 2G, the deflection force [box, [-2] is in the opposite direction and is equal to these. It receives the deflection forces Fl' and F2' of the grip. Therefore, when the electron beams R and B pass through the magnetic fields in which the eddy current magnetic fields 13, 13' and the correction magnetic field 26 are wandering,
- The deflection forces [:1, etc.]:1' and ]:2 and F2' are balanced, and the deflection is not deflected in the Y-axis direction but in the X-axis (horizontal direction). Convergence 15
will be corrected and eliminated.
また、補正ｖＡｖＩ２８ （７）磁束２７ａ、２７ｂｌ
ｌ、前記の渦電流磁界１４．１４’ の磁束１２ａ。Also, correction vAvI28 (7) Magnetic flux 27a, 27bl
l, magnetic flux 12a of said eddy current magnetic field 14.14'.
１２ａ’ 、１２ｂ、１２ｂ’ と逆方向であり、電子
ビーム１＜、Ｂは補正磁界２８内を通過覆るときに、前
記偏向力Ｆ３．Ｆ４とは逆向きで１つこれらと等しい人
ささの偏向力Ｆ３’ ＊、、Ｆａ ’ を受りる。この
ため、電子ビームＲ，Ｂは、渦電流磁界１／１．１４’
ど補正磁界２８とが重畳し−（いる磁界内を通過する
どきには、上記偏向力Ｆ３と１−３′及び「４どＦ４’
とがバランスし、Ｙ軸方向へは偏向されずにＸ軸（水
平方向）に偏向され、９１５図中下側のミス」ンバーゼ
ンス１Ｇが修正されて解消される。12a', 12b, 12b', and when the electron beam 1<, B passes through the correction magnetic field 28, the deflection force F3. It receives a man-sized deflection force F3'*, , Fa' which is opposite to F4 and equal to these. Therefore, the electron beams R and B have an eddy current magnetic field of 1/1.14'
When passing through a magnetic field in which the correction magnetic field 28 is superimposed, the deflection forces F3 and 1-3' and "F4'
are balanced, and the beam is deflected in the X-axis (horizontal direction) without being deflected in the Y-axis direction, and the misconvergence 1G on the lower side of Figure 915 is corrected and eliminated.
換言すれば、渦電流磁界１３．１３’ は補正磁界２Ｇ
により、’ｄｒ＾電梳磁界１４．１４は補正磁界２８に
より人々（」消された状態となり、上記のミスコンバー
ゼンス１５，１６は其に補正され、スクリーン２ｂには
良質の画像が再生される。In other words, the eddy current magnetic field 13.13' is the correction magnetic field 2G
As a result, the electric field 14, 14 is erased by the correction magnetic field 28, the above-mentioned misconvergence 15, 16 is corrected, and a high-quality image is reproduced on the screen 2b.
なお、こ）で永久磁石２２．２３の磁力は、渦電流磁界
１３．１３’ 、１／１．１４’ を打消しうる強さの
補正磁界２６．２８を発生しうるように定めであるのは
勿論である。In this case, the magnetic force of the permanent magnets 22.23 is determined to generate a correction magnetic field 26.28 strong enough to cancel the eddy current magnetic field 13.13', 1/1.14'. Of course.
なお、スクリーン２ｂの上部又は下部のいずれか一方で
コンバーげンスずれが大きく、他方で小さい場合には、
永久磁石をずれが人さい側だけに配すれば、実用上十分
な効果が得られることもある。Note that if the convergence shift is large at either the top or bottom of the screen 2b and small at the other,
If the permanent magnets are placed only on the side with the slightest deviation, a sufficient practical effect may be obtained.
また、上記の永久磁？Ｅｉ２２．２３の代わりに、直流
電流を供給され、巻軸線をＹ軸と一致ざＵて配されたコ
イルを使用してもよく、」−記と同様の補正磁界２６．
２８が形成されて同様の効果を右づる。Also, the permanent magnetism mentioned above? Instead of Ei 22.23, a coil may be used which is supplied with a direct current and whose winding axis is aligned with the Y axis, and which has a correction magnetic field 26.
28 is formed to create a similar effect.
上記の実施例では、渦電流磁界１３．１３’ 。In the above example, the eddy current magnetic field 13.13'.
１１！１．１４’ を常時打消づ構成としであるが、渦
電流磁界は電子ビーム１（、Ｂがこの磁界内にあるとき
に打？ｌ’ｊされ１ばよいことになる。従って上記直流
電流の代わりに垂直偏向電流の一部を上記田イルに流り
ようにしてもよい。この場合には、電子ビーム１（、Ｂ
が上下に偏向されたとき補正磁界２Ｇ、２８が形成され
て、渦電流磁界が打消され、ミスコンバーゼンス１５，
１６が共に補正された画像が１！ｌられる。11!1.14' is always canceled, but the eddy current magnetic field only needs to be struck when the electron beam 1 (, B) is within this magnetic field. Therefore, the above DC Instead of the current, a part of the vertical deflection current may be made to flow through the column. In this case, the electron beam 1 (, B
is deflected vertically, correction magnetic fields 2G, 28 are formed, canceling the eddy current magnetic field, and causing misconvergence 15, 28.
The image with 16 corrected together is 1! I will be beaten.
また、上記の永久磁石２２．２３又はコイルは偏向ヨー
ク本体の代わりにカラー受像管２に取付りられＣｂよく
、上記ど同様に作用するのは勿論−Ｃある。Further, the above-mentioned permanent magnets 22, 23 or coils may be attached to the color picture tube 2 instead of the deflection yoke body, and of course -C may function in the same manner as above.
効果
上述の如く、本発明になる偏向ヨークにＪ：れば、スラ
ー受像管内の金属部が原因で発生ずる渦電流磁シνをｉ
ｒｉ接的に打消Ｊことが出来るため、渦電流磁界に起因
りるミスコンバーゼンスを、補正の所謂副作用としての
コンバーゼンスずれを発生さＵることなく、補１１Ｊる
ことが出来、しかも、高価である動的な」ンバーゼンス
補正装置を使用１−ることイｊく、例えば永久磁石を利
用した簡単にに構成ど′す゛ることも出来、然して、上
記のミスコンバーゼンスを良好にしかも容易に且つ安価
に補正りることが出来るという特長をイ４する。Effects As mentioned above, the deflection yoke according to the present invention reduces the eddy current magnetic field ν caused by the metal parts in the slurry picture tube.
Since it is possible to tangentially cancel the misconvergence caused by the eddy current magnetic field, it is possible to compensate for the misconvergence caused by the eddy current magnetic field without causing a convergence shift as a so-called side effect of the correction, and it is also expensive. The use of a dynamic "convergence correction device", which can be easily constructed using, for example, a permanent magnet, allows the above-mentioned misconvergence to be corrected well, easily and at low cost. 4.
第１図は一般的なインライン型カラー受像装置を概略的
に示す図、第２図はカラー受像管内の磁界の状況を示す
第１図中■−■線に沿う拡大矢視図、第３図は水平偏向
電流の波形図、第４図は電子ビームＲ，Ｂが渦電流磁界
ににり偏向される状況を示Ｊ図、第５図は第４図のｌａ
ｆ向ににり生じたミスコンバーゼンスパターンを示づ図
、第６図は第５図のミスコンバーゼンスを補正したどき
にその副作用どして生じたミスコンバーゼンスパターン
を示す図、第７図は本発明になる偏向」−りの一実施例
の斜視図、第８図はこの偏向ヨークを紺＋Ｊ ｔノでな
るカラー受像装置を概略的に示１図、第９図は第７図の
偏向ヨークによるミスコンバーゼンスの補正動作を説明
づる図である。。
２・・・カラー受像管、５ａ、５ｂ・・・垂直偏向コイ
ル、６ａ、６ｂ・・・水平偏向コイル、７・・・水平偏
向磁界、８・・・電子銃の一部、９・・・ゲッタ、１ｏ
・・・ゲッタ支持機、１１ａ、ｌｌｂ、１２ａ、１２ｂ
。
１１ａ’ 、１１ｂ’ 、１２ａ’ 、１２ｂ’ ・６
１１束、 ′１３．１３’ 、１４．１４’・・・渦電
流磁界、１５゜１６・・・ミスコンバーゼンス、２ｏ・
・・偏向ヨーク、２１・・・カラー受像装置、２２．２
３・・・永久磁石、２４・・・リング部祠、２４ａ 、
２４１１・・・保持部、２５ａ 、２５ｂ 、２７ａ
、２７ｂ−・・磁束、２６２８ ・・・ ン山 正 磁
シν 。
特晶′１出願人 口木ビクター株式会社代 理 人 弁
理士 伊 東 忠 彦
第１図
８１５≧６１ンＪ
第７図 つ
手続補正書
昭和６０年４月２１１
（特許庁審査官 殿）
１、事件の表示
１１８和５９ 年 特 許 願第 ４５１２［］ ９号
２発明の名称
偏 向 ヨ − り
３、補正をする者
特 許 出願人
住 所 ・２２１ 、Ｍ＋奈川用、１．横浜市神奈用区
守屋町３丁ｇ１２ｉ地名称 （４３２） 日本ビクター
株式会社代表名 取？ａ役社長 宍 道 −部
４、代理人
自発補正
６、７山 正 の 対 奮！
明ｆｌｌｌ六の発明の訂：＃１１な説明の欄。
７、 補正の内容
（１）明細７１１中、第２頁第１７行及び第３頁第７行
記載の１−変更」を「偏向」ど補正覆る。
（２）同、第６頁第７行記載の「生産性上採用ザること
番よ困テ１１である。」を［生産性を阻害づる要因とな
る。」ど補止りる。
（３１１同、第１１頁第８行記載の「スラー」を１′カ
ラー」と補１１−りる。Figure 1 is a diagram schematically showing a general in-line color picture receiver, Figure 2 is an enlarged view along the line ■-■ in Figure 1, showing the state of the magnetic field inside the color picture tube, and Figure 3. is a waveform diagram of the horizontal deflection current, Figure 4 shows the situation where electron beams R and B are deflected by the eddy current magnetic field, and Figure 5 is the la of Figure 4.
A diagram showing a misconvergence pattern that occurred in the f direction, FIG. 6 is a diagram showing a misconvergence pattern that occurred as a side effect when the misconvergence in FIG. 5 was corrected, and FIG. FIG. 8 is a perspective view of an embodiment of the deflection yoke shown in FIG. FIG. 3 is a diagram illustrating a misconvergence correction operation. . 2... Color picture tube, 5a, 5b... Vertical deflection coil, 6a, 6b... Horizontal deflection coil, 7... Horizontal deflection magnetic field, 8... Part of electron gun, 9... Getta, 1o
...Getter support machine, 11a, llb, 12a, 12b
. 11a', 11b', 12a', 12b' ・6
11 flux, '13.13', 14.14'... Eddy current magnetic field, 15°16... Misconvergence, 2o.
...Deflection yoke, 21...Color image receiving device, 22.2
3... Permanent magnet, 24... Ring part shrine, 24a,
2411... Holding section, 25a, 25b, 27a
, 27b-...magnetic flux, 2628...Nyama positive magnetic siν. Special Crystal '1 Applicant Kuchiki Victor Co., Ltd. Agent Patent Attorney Tadahiko Ito Figure 1 815≧61nJ Figure 7 Procedural Amendment April 1985 211 (To the Patent Office Examiner) 1. Indication of case 118 Wa 59 Patent Application No. 4512 [] No. 9 2 Name deviation of invention 3, Amendment person patent Applicant address ・221, M+For Nagawa, 1. 3-g12i Moriyamachi, Kanayō-ku, Yokohama City Place name (432) Victor Company of Japan Co., Ltd. Representative name Tori? A role president Shimichi - Department 4, agent voluntary compensation 6, 7 Yama Tadashi's efforts! Revised invention of Akira Roku: #11 Explanation column. 7. Contents of the amendment (1) In Specification 711, 1-Change described in page 2, line 17 and page 3, line 7 is overturned as ``deflection.'' (2) In the same article, page 6, line 7 states, ``It is difficult to hire employees in terms of productivity.'' [This is a factor that impedes productivity.] ” Do make up for it. (311 Ibid., page 11, line 8, ``slur'' is supplemented with ``1'color.'')
Claims (1)
受像管にＩＩ伺りられて使用される偏向ヨークにおいて
、該カラー受像管に組付けられた状態′ｃａカラー受像
管内の金属部に対向Ｊる位置に、−向磁稈により該金属
部に誘起される渦電流により生ずる渦電流磁界を打ちｔ
ｌ！ｌずような磁界を発生させる磁界発生手段を備えて
なることを特徴とりる編向ヨーク。 ２、 該磁界発生手段は、磁極を該金属部に向１ノて配
された永久磁石片であることを特徴とするｔｋ Ｆｉｌ
’ 請求の範囲第１項記載の偏向ヨーク。 ３、 該磁界発生手段は、その巻軸線を該金属部に向１
ノで配され、直流電流或いは垂直偏向電流を供給される
コイルであることを特徴とする特１１晶求の範囲第１項
記載の偏向ヨーク。[Scope of Claims] 1. In a deflection yoke used in a color picture tube having three electron guns with ink-in delivery, the 'ca color when assembled to the color picture tube An eddy current magnetic field generated by an eddy current induced in the metal part by a magnetic culm is applied to a position opposite to the metal part in the picture tube.
l! 1. A knitting yoke characterized by comprising magnetic field generating means for generating a magnetic field of a certain magnitude. 2. The magnetic field generating means is a permanent magnet piece with magnetic poles facing the metal part.
' The deflection yoke according to claim 1. 3. The magnetic field generating means directs its winding axis toward the metal part.
The deflection yoke according to item 1 of item 11, characterized in that the deflection yoke is a coil arranged in the form of a coil and supplied with a direct current or a vertical deflection current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4512084A JPS60189845A (en) | 1984-03-09 | 1984-03-09 | Deflection york |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4512084A JPS60189845A (en) | 1984-03-09 | 1984-03-09 | Deflection york |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60189845A true JPS60189845A (en) | 1985-09-27 |
Family
ID=12710408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4512084A Pending JPS60189845A (en) | 1984-03-09 | 1984-03-09 | Deflection york |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60189845A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63271851A (en) * | 1987-04-30 | 1988-11-09 | Hitachi Ltd | Deflection yoke |
| EP0322845A2 (en) * | 1987-12-26 | 1989-07-05 | Kabushiki Kaisha Toshiba | Improved deflection device for a color picture tube apparatus |
| US4943753A (en) * | 1987-08-13 | 1990-07-24 | International Business Machines Corporation | Magnetic shunt for deflection yokes |
| CN105373097A (en) * | 2015-11-24 | 2016-03-02 | 中冶南方工程技术有限公司 | Non-contact type traveling wave magnetic field eddy current deviation-correcting device and method of metal strip continuous production line |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5530658A (en) * | 1978-08-28 | 1980-03-04 | Fujirebio Inc | Sensitized latex for inspecting adeno virus desease and production thereof |
-
1984
- 1984-03-09 JP JP4512084A patent/JPS60189845A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5530658A (en) * | 1978-08-28 | 1980-03-04 | Fujirebio Inc | Sensitized latex for inspecting adeno virus desease and production thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63271851A (en) * | 1987-04-30 | 1988-11-09 | Hitachi Ltd | Deflection yoke |
| US4943753A (en) * | 1987-08-13 | 1990-07-24 | International Business Machines Corporation | Magnetic shunt for deflection yokes |
| EP0322845A2 (en) * | 1987-12-26 | 1989-07-05 | Kabushiki Kaisha Toshiba | Improved deflection device for a color picture tube apparatus |
| US4975618A (en) * | 1987-12-26 | 1990-12-04 | Kabushiki Kaisha Toshiba | Deflection device for a color picture tube apparatus |
| CN105373097A (en) * | 2015-11-24 | 2016-03-02 | 中冶南方工程技术有限公司 | Non-contact type traveling wave magnetic field eddy current deviation-correcting device and method of metal strip continuous production line |
| CN105373097B (en) * | 2015-11-24 | 2018-03-27 | 中冶南方工程技术有限公司 | The contactless travelling-magnetic-field vortex correcting device and method of a kind of sheet metal strip tinuous production |
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