JPH10275570A - Color picture tube device - Google Patents
Color picture tube deviceInfo
- Publication number
- JPH10275570A JPH10275570A JP7944997A JP7944997A JPH10275570A JP H10275570 A JPH10275570 A JP H10275570A JP 7944997 A JP7944997 A JP 7944997A JP 7944997 A JP7944997 A JP 7944997A JP H10275570 A JPH10275570 A JP H10275570A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electrode plate
- picture tube
- tube device
- sides
- 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
Links
- 238000010894 electron beam technology Methods 0.000 claims abstract description 33
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 19
- 230000004075 alteration Effects 0.000 abstract description 9
- 230000005684 electric field Effects 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、カラー受像管装置
に関し、特に、３本の電子ビームを蛍光面に集束させる
ための主レンズを構成する電極に関する。[0001] 1. Field of the Invention [0002] The present invention relates to a color picture tube device, and more particularly to an electrode constituting a main lens for focusing three electron beams on a phosphor screen.
【０００２】[0002]
【従来の技術】一般にカラー受像管装置は、パネルおよ
びこのパネルに一体に接合されたファンネルからなる外
囲器を有し、ファンネルのネック内に配置された電子銃
から放出される３本の電子ビームが、ファンネルの外側
に装着された偏向装置の発生する水平および垂直偏向磁
界により偏向され、水平、垂直走査しながらパネル内面
にシャドウマスクに対向して形成された蛍光体スクリー
ンに射突することにより、カラー画像を表示するように
形成されている。2. Description of the Related Art In general, a color picture tube apparatus has an envelope composed of a panel and a funnel integrally joined to the panel, and three electron beams emitted from an electron gun disposed in a neck of the funnel. The beam is deflected by the horizontal and vertical deflection magnetic fields generated by the deflection device mounted outside the funnel, and strikes the phosphor screen formed on the inner surface of the panel facing the shadow mask while scanning horizontally and vertically. Thus, a color image is displayed.
【０００３】このようなカラー受像管装置において、蛍
光体スクリーン上に解像度の高い画像を描くためには、
電子銃の主レンズ部において球面収差の影響を少なくし
て蛍光体スクリーン上のスポット径を小さくする必要が
ある。In such a color picture tube apparatus, in order to draw a high-resolution image on a phosphor screen,
It is necessary to reduce the influence of spherical aberration on the main lens portion of the electron gun to reduce the spot diameter on the phosphor screen.
【０００４】一般にカラー受像管装置における蛍光体ス
クリーン上のスポット径は、電子銃の主レンズでの球面
収差の影響が少ないほど小さくすることができる。電子
ビームの主レンズへの入射角度をαとすると、主レンズ
の収差の中で最も優勢な球面収差が寄与するスポット径
δは、 δ＝（Ｍ・Ｃsp・α3）／２ と表わされる。ここで、Ｍはレンズ倍率、Ｃspは球面収
差係数である。主レンズのレンズ集束作用を弱めると、
レンズ倍率、球面収差が低減されるので、蛍光体スクリ
ーン上のスポット径を小さくすることができる。主レン
ズのレンズ集束作用を弱める方法の一つは、主レンズを
形成する電極の電子ビーム通過孔径を拡大することであ
る。In general, the spot diameter on the phosphor screen in a color picture tube device can be reduced as the influence of spherical aberration on the main lens of the electron gun is reduced. Assuming that the angle of incidence of the electron beam on the main lens is α, the spot diameter δ to which the most dominant spherical aberration among the aberrations of the main lens contributes is expressed as δ = (M · Csp · α 3 ) / 2. . Here, M is a lens magnification, and C sp is a spherical aberration coefficient. When the lens focusing function of the main lens is weakened,
Since the lens magnification and the spherical aberration are reduced, the spot diameter on the phosphor screen can be reduced. One method of weakening the lens focusing action of the main lens is to increase the diameter of an electron beam passing hole of an electrode forming the main lens.
【０００５】特開昭５９−２１５６４０号公報に開示さ
れている従来のカラー受像管装置の電子銃では、図８に
断面図で示すように、主レンズを構成する２つの電極２
５，２６が、互いに間隔を隔てて設けられている。電極
２５，２６はそれぞれ水平方向に並んだ３本の電子ビー
ム８ａ，８ｂ，８ｃを取り囲む外周電極２７，２８と、
外周電極２７，２８の互いの対向端面から後退した位置
に配置された電極板２９，３０とからなる。図９は電極
２５の正面図を示しており、電極２６の正面図も同様で
ある。電極板２９，３０はそれぞれ単一の開孔３１ｂ，
３２ｂを有しており、中央の電子ビーム８ｂがその単一
の開孔３１ｂ，３２ｂを通過するように形成されてい
る。電子ビーム８ａは、電極板２９，３０の端部と外周
電極２７，２８との間に形成される開孔３１ａ，３２ａ
を通過し、電子ビーム８ｃは、電極板２９，３０の端部
と外周電極２７，２８との間に形成される開孔３１ｃ，
３２ｃを通過する。このように、主レンズを形成する電
極２５，２６の電子ビーム通過孔径を大きくすること
で、センターの電子ビーム８ｂが通過する主レンズ電界
と、サイドの電子ビーム８ａ，８ｃが通過する主レンズ
電界を重畳させて主レンズ口径を大きくし、蛍光体スク
リーン上のスポット径を縮小している。In a conventional electron gun of a color picture tube device disclosed in Japanese Patent Application Laid-Open No. Sho 59-215640, as shown in a sectional view of FIG.
5 and 26 are provided at an interval from each other. The electrodes 25 and 26 include outer peripheral electrodes 27 and 28 surrounding three electron beams 8a, 8b and 8c arranged in a horizontal direction, respectively.
Electrode plates 29 and 30 are arranged at positions receded from the end faces of the outer peripheral electrodes 27 and 28 facing each other. FIG. 9 shows a front view of the electrode 25, and the same applies to the front view of the electrode 26. The electrode plates 29, 30 each have a single opening 31b,
The center electron beam 8b is formed so as to pass through the single apertures 31b and 32b. The electron beam 8a is applied to apertures 31a, 32a formed between the ends of the electrode plates 29, 30 and the outer electrodes 27, 28.
And the electron beam 8c passes through the apertures 31c, formed between the ends of the electrode plates 29, 30 and the outer electrodes 27, 28.
32c. As described above, by increasing the diameter of the electron beam passage holes of the electrodes 25 and 26 forming the main lens, the main lens electric field through which the center electron beam 8b passes and the main lens electric field through which the side electron beams 8a and 8c pass. Are superimposed to increase the diameter of the main lens and reduce the spot diameter on the phosphor screen.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、このよ
うな従来のカラー受像管装置の電子銃では、前記電極板
の水平方向が前記外周電極に接していないため、電極板
を正確に外周電極内の所定の位置に溶接することができ
ず、特に水平方向で組み立ての際にばらつきが発生し
て、主レンズで形成される電界が歪んで、蛍光体スクリ
ーン上のスポットが大きくなったり、歪んだり、非対称
が発生したりするという問題があった。However, in such a conventional electron gun of a color picture tube device, since the horizontal direction of the electrode plate is not in contact with the outer peripheral electrode, the electrode plate is accurately positioned inside the outer peripheral electrode. It cannot be welded to a predetermined position, especially when assembling in the horizontal direction, a variation occurs, the electric field formed by the main lens is distorted, the spot on the phosphor screen becomes large or distorted, There is a problem that asymmetry occurs.
【０００７】[0007]
【課題を解決するための手段】本発明のカラー受像管装
置は、蛍光体スクリーンに向けて一方向にほぼ平行に並
んだ３本の電子ビームを発生する電子ビーム発生手段
と、前記３本の電子ビームを前記蛍光体スクリーンに集
束させる主レンズを構成する、管軸方向に間隙を挟んで
前記３本の電子ビームを取り囲むように対向し、少なく
とも一方の周縁部に対向面から内側に突出するリム部を
有する外周電極と、前記外周電極のそれぞれに内蔵さ
れ、前記３本の電子ビームの通過する３個の開孔が前記
一方向に沿って形成された電極板とを有し、前記電極板
の３個の開孔のうち両サイドの開孔の外側端間を結ぶ水
平方向の距離が、前記リム部の水平方向内径より大きく
なるように構成する。この構成により、主レンズのレン
ズ口径を大きくして蛍光面上のスポット径を小さくでき
るとともに、電子銃の組立の際のばらつきを小さくする
ことができる。According to the present invention, there is provided a color picture tube apparatus comprising: an electron beam generating means for generating three electron beams arranged substantially in parallel in one direction toward a phosphor screen; A main lens that focuses the electron beam on the phosphor screen is opposed to the three electron beams so as to surround the three electron beams with a gap in the tube axis direction, and protrudes inward from at least one peripheral edge from the facing surface. An outer peripheral electrode having a rim portion, and an electrode plate built in each of the outer peripheral electrodes and having three openings formed along the one direction through which the three electron beams pass. The horizontal distance between the outer ends of the holes on both sides of the three holes of the plate is configured to be larger than the horizontal inner diameter of the rim. With this configuration, the diameter of the spot on the phosphor screen can be reduced by increasing the lens diameter of the main lens, and the variation in assembling the electron gun can be reduced.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施の形態につい
て、図面を用いて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【０００９】図１に本発明の一実施の形態であるカラー
受像管装置を、図２にカラー受像管装置に用いる電子銃
の代表的な構成を示す。このカラー受像管装置は、パネ
ル１およびこのパネル１に一体に接合された漏斗状のフ
ァンネル２からなる外囲器を有している。パネル１の内
面には、青色、緑色、赤色に発光する三色の蛍光体層か
らなる蛍光体スクリーン３が形成され、この蛍光体スク
リーン３に対向して、多数の電子ビーム通過孔の形成さ
れたシャドウマスク４が配置されている。ファンネル２
のネック部５内には、電子銃６が配置されている。ま
た、偏向ヨーク７はファンネル２の径大部とネック部５
との境界部に装着され、電子銃６から放出される電子ビ
ーム８を水平方向および垂直方向に偏向する。FIG. 1 shows a typical configuration of an electron gun used in a color picture tube device according to an embodiment of the present invention, and FIG. 2 shows a typical configuration of an electron gun used in the color picture tube device. This color picture tube device has an envelope composed of a panel 1 and a funnel 2 joined to the panel 1 in a funnel shape. On the inner surface of the panel 1, a phosphor screen 3 composed of phosphor layers of three colors emitting blue, green, and red light is formed. Shadow mask 4 is arranged. Funnel 2
An electron gun 6 is arranged in the neck portion 5 of FIG. The deflection yoke 7 has a large diameter portion of the funnel 2 and a neck portion 5.
And deflects the electron beam 8 emitted from the electron gun 6 in the horizontal and vertical directions.
【００１０】電子銃６は図２に示すように、水平方向に
インライン配列された３つの陰極９ａ，９ｂ，９ｃ、制
御格子電極１０、加速電極１１、集束電極１２、および
最終加速電極１３が順次に配設されて構成される。As shown in FIG. 2, the electron gun 6 includes three cathodes 9a, 9b, 9c, a control grid electrode 10, an accelerating electrode 11, a focusing electrode 12, and a final accelerating electrode 13, which are arranged inline in the horizontal direction. It is arranged and configured.
【００１１】陰極９ａ，９ｂ，９ｃと制御格子電極１０
と加速電極１１とで形成されるカソードレンズ１４によ
って陰極９ａ，９ｂ，９ｃから電子ビーム８ａ，８ｂ，
８ｃを取り出して、加速電極１１と集束電極１２とで形
成されるプリフォーカスレンズ１５と、集束電極１２と
最終加速電極１３とで形成される主レンズ１６とによっ
て、電子ビーム８ａ，８ｂ，８ｃを蛍光体スクリーン３
上に集束させる。The cathodes 9a, 9b, 9c and the control grid electrode 10
The electron beams 8a, 8b, 8b,
8c, the electron beams 8a, 8b, 8c are formed by a prefocus lens 15 formed by the accelerating electrode 11 and the focusing electrode 12, and a main lens 16 formed by the focusing electrode 12 and the final accelerating electrode 13. Phosphor screen 3
Focus on top.
【００１２】集束電極１２は最終加速電極１３と対向す
る端面から内側へ突出したリム部１７が設けられた外周
電極１８と、電極板１９とを有している。電極板１９に
は電子ビーム８ａ，８ｂ，８ｃが通過する３つの開孔２
０ａ，２０ｂ，２０ｃが形成されている。The focusing electrode 12 has an outer peripheral electrode 18 provided with a rim portion 17 protruding inward from an end face facing the final acceleration electrode 13 and an electrode plate 19. The electrode plate 19 has three openings 2 through which the electron beams 8a, 8b and 8c pass.
0a, 20b and 20c are formed.
【００１３】図３は集束電極１２を最終加速電極１３側
から見たときの正面図であり、電極板１９に設けられた
３つの開孔２０ａ，２０ｂ，２０ｃのうち、両サイドの
開孔２０ａと２０ｃの外側端間の水平方向の距離をＬｆ
とし、リム部１７の水平方向の内径をＬｍとしたとき、
Ｌｆ＞Ｌｍとなるように構成されている。FIG. 3 is a front view of the focusing electrode 12 as viewed from the final accelerating electrode 13 side. Of the three openings 20a, 20b, 20c provided in the electrode plate 19, the openings 20a on both sides are shown. Is the horizontal distance between the outer ends of
When the horizontal inner diameter of the rim portion 17 is Lm,
It is configured such that Lf> Lm.
【００１４】最終加速電極１３は集束電極１２と対向す
る端面から内側へ突出したリム部２１が設けられた外周
電極２２と、電極板２３とを有している。電極板２３に
は電子ビーム８ａ，８ｂ，８ｃが通過する３つの開孔２
４ａ，２４ｂ，２４ｃが形成されている。最終加速電極
１３を集束電極１２側から見たときの正面図は図３と同
様であり、電極板２３に設けられた３つの開孔２４ａ，
２４ｂ，２４ｃのうち、両サイドの開孔２４ａと２４ｃ
の外側端間の水平方向の距離Ｌｆよりも、リム部２１の
水平方向の内径Ｌｍのほうが小さくなるように構成され
ている。The final accelerating electrode 13 has an outer peripheral electrode 22 provided with a rim 21 projecting inward from an end face facing the focusing electrode 12, and an electrode plate 23. The electrode plate 23 has three openings 2 through which the electron beams 8a, 8b, 8c pass.
4a, 24b and 24c are formed. The front view of the final accelerating electrode 13 as viewed from the focusing electrode 12 side is the same as FIG. 3, and three openings 24 a,
Openings 24a and 24c on both sides of 24b and 24c
The inner diameter Lm of the rim portion 21 in the horizontal direction is smaller than the horizontal distance Lf between the outer ends of the rim portion 21.
【００１５】リム部１７，２１を設けることによって、
ネック部５に帯電した電荷が主レンズ電界を乱すことが
ないように、電荷の影響を遮蔽している。リム部１７，
２１が大きいほどこの遮蔽効果が上がるが、互いに対向
しているリム部１７，２１の面の面積が大きいほどリム
部１７とリム部２１との間で放電を引き起こすため、リ
ム部１７，２１の大きさは遮蔽効果と放電の影響を考慮
して決められる。By providing the rim portions 17 and 21,
The influence of the charges is shielded so that the charges charged in the neck portion 5 do not disturb the main lens electric field. Rim part 17,
As the area of the rims 17 and 21 is larger, the greater the area of the rims 17 and 21 facing each other, the greater the area of the rims 17 and 21. The size is determined in consideration of the shielding effect and the influence of the discharge.
【００１６】このように構成すると、次の効果が得られ
る。すなわち、集束電極１２と最終加速電極１３との間
に形成される３つの主レンズ１６電界を、外周電極のリ
ム部１７または２１と電極板１９または２３によって重
畳させることで、主レンズ１６のレンズ口径を大きくす
ることができるので、蛍光体スクリーン上のスポット径
を小さくすることができる。また、電子ビーム８ａ，８
ｂ，８ｃそれぞれのジャストフォーカス電圧や球面収差
の影響等、３つの電子ビーム間のスポット特性をほとん
ど同じにすることができる。さらに、電極板１９，２３
はそれぞれ外周電極１８，２２にほぼ接しているので、
外周電極と電極板とを溶接するときの組み立てばらつき
を低減することができる。With this configuration, the following effects can be obtained. That is, the three main lens 16 electric fields formed between the focusing electrode 12 and the final acceleration electrode 13 are superimposed by the rim portion 17 or 21 of the outer peripheral electrode and the electrode plate 19 or 23 so that the lens of the main lens 16 is Since the diameter can be increased, the spot diameter on the phosphor screen can be reduced. Also, the electron beams 8a, 8
The spot characteristics between the three electron beams, such as the influence of the just focus voltage and the spherical aberration of each of b and 8c, can be made almost the same. Further, the electrode plates 19, 23
Are almost in contact with the outer peripheral electrodes 18 and 22, respectively.
It is possible to reduce variation in assembly when the outer peripheral electrode and the electrode plate are welded.
【００１７】例えば、集束電極１２、最終加速電極１３
においてＬｆ＝１９．４２ｍｍ、Ｌｍ＝１８．５ｍｍと
することにより、主レンズ口径を８．６ｍｍという大き
な口径にすることができた。また、集束電極１２、最終
加速電極１３においてＬｆ＝１９．０〜２０．０ｍｍ、
Ｌｍ＝１８．５ｍｍとしたとき、外周電極と電極板とを
溶接するときの組み立てばらつきの公差は従来の構成の
ものに比べて半減させることができた。For example, focusing electrode 12, final accelerating electrode 13
By setting Lf = 19.42 mm and Lm = 18.5 mm, the aperture of the main lens could be made as large as 8.6 mm. Further, in the focusing electrode 12 and the final acceleration electrode 13, Lf = 19.0 to 20.0 mm,
When Lm = 18.5 mm, the tolerance of assembly variation when welding the outer peripheral electrode and the electrode plate could be reduced by half as compared with the conventional configuration.
【００１８】図４に示すように、電極板１９の３個の開
孔のうち中央の開孔２０ｂを垂直方向に長手の形状とす
ることにより、主レンズのレンズ口径を大きくするとと
もに、３つの電子ビーム間のスポット特性を調整するこ
とができる。開孔２０ｂは外周電極１８と電極板１９と
の溶接時または電子銃組み立て時に組み立て治具の規制
を受けないので、組み立てばらつきは図３に示した電極
板の場合と変わらない。As shown in FIG. 4, the central aperture 20b of the three apertures of the electrode plate 19 has a vertically long shape, so that the lens aperture of the main lens can be increased and the three apertures can be increased. The spot characteristics between electron beams can be adjusted. Since the opening 20b is not subject to the regulation of the assembly jig when welding the outer peripheral electrode 18 and the electrode plate 19 or when assembling the electron gun, the assembly variation is the same as that of the electrode plate shown in FIG.
【００１９】また、図５に示すように、電極板１９の３
個の開孔のうち両サイドの開孔２０ａと２０ｃの内側半
分が、２を越える次数の高次の曲線形状とすることによ
り、主レンズのレンズ口径を大きくするとともに、３つ
の電子ビーム間のスポット特性を調整することができ
る。外周電極１８と電極板１９との溶接時または電子銃
組み立て時に、両サイドの開孔２０ａ，２０ｃの内側部
分は組み立て治具の規制を受けないので、組み立てばら
つきは図３に示した電極板の場合と変わらない。Further, as shown in FIG.
The inner half of the apertures 20a and 20c on both sides of the individual apertures has a higher-order curved shape of an order exceeding 2, so that the lens aperture of the main lens is increased and the distance between the three electron beams is increased. The spot characteristics can be adjusted. When welding the outer peripheral electrode 18 and the electrode plate 19 or assembling the electron gun, the inner portions of the openings 20a and 20c on both sides are not restricted by the assembly jig, so that the assembly variation is smaller than that of the electrode plate shown in FIG. It is not different from the case.
【００２０】外周電極１８と電極板１９との溶接時に
は、電極板１９の３個の開孔のうち両サイドの開孔２０
ａ，２０ｃの外側半分を規制する場合が多いため、組み
立て治具の加工性を良くするために、図６に示すよう
に、両サイドの開孔２０ａ，２０ｃの外側半分を半円形
状としてもよい。At the time of welding the outer peripheral electrode 18 and the electrode plate 19, of the three openings of the electrode plate 19, the openings 20 on both sides are used.
In many cases, the outer halves of the openings 20a and 20c are semicircular, as shown in FIG. 6, in order to improve the workability of the assembly jig. Good.
【００２１】もちろん、図７に示すように、図４、図
５、図６に示した電極板１９の開孔の形状を組み合わせ
て、中央の開孔２０ｂは水平方向の径を垂直方向の径よ
り小さく形成し、両サイドの開孔２０ａ，２０ｃの内側
半分は２を越える次数の高次の曲線形状に形成し、外側
半分は半円形状に形成した電極板としてもよい。Of course, as shown in FIG. 7, by combining the shapes of the apertures of the electrode plate 19 shown in FIGS. 4, 5, and 6, the central aperture 20b has a horizontal diameter that is equal to the vertical diameter. The electrode plate may be formed to be smaller, the inner half of the openings 20a and 20c on both sides may be formed in a higher-order curved shape of an order exceeding 2, and the outer half may be formed in a semicircular shape.
【００２２】図４から図７では集束電極１２に設けられ
た電極板１９について説明したが、最終加速電極１３に
設けた電極板２３についても同様である。Although the electrode plate 19 provided on the focusing electrode 12 has been described with reference to FIGS. 4 to 7, the same applies to the electrode plate 23 provided on the final acceleration electrode 13.
【００２３】また、以上説明した発明は、主レンズを形
成する電子銃を用いたカラー受像管装置に適用すること
ができる。The invention described above can be applied to a color picture tube device using an electron gun forming a main lens.
【００２４】[0024]
【発明の効果】以上説明したように、本発明は、電極板
の３個の開孔のうち両サイドの開孔の外側端間を結ぶ水
平方向の距離を、リム部の水平方向内径より大きくする
ことにより、主レンズのレンズ口径を大きくして球面収
差の影響を少なくし、蛍光体スクリーン上のスポットを
小さくすることができるとともに、電子銃の組み立てば
らつきを小さくすることができる。As described above, according to the present invention, the horizontal distance between the outer ends of the holes on both sides of the three holes of the electrode plate is made larger than the horizontal inner diameter of the rim portion. By doing so, the effect of spherical aberration can be reduced by increasing the lens diameter of the main lens, the spot on the phosphor screen can be reduced, and the assembly variation of the electron gun can be reduced.
【図１】本発明のカラー受像管装置の断面図FIG. 1 is a cross-sectional view of a color picture tube device of the present invention.
【図２】本発明のカラー受像管装置に搭載した電子銃の
断面図FIG. 2 is a cross-sectional view of an electron gun mounted on the color picture tube device of the present invention.
【図３】本発明の集束電極の正面図FIG. 3 is a front view of the focusing electrode of the present invention.
【図４】本発明の電極板の正面図FIG. 4 is a front view of the electrode plate of the present invention.
【図５】本発明の他の例の電極板の正面図FIG. 5 is a front view of an electrode plate according to another example of the present invention.
【図６】本発明の他の例の電極板の正面図FIG. 6 is a front view of an electrode plate according to another example of the present invention.
【図７】本発明の他の例の電極板の正面図FIG. 7 is a front view of an electrode plate according to another example of the present invention.
【図８】従来の主レンズ形成電極の断面図FIG. 8 is a sectional view of a conventional main lens forming electrode.
【図９】従来の主レンズ形成電極の正面図FIG. 9 is a front view of a conventional main lens forming electrode.
１ パネル ２ ファンネル ３ 蛍光体スクリーン ４ シャドウマスク ５ ネック部 ６ 電子銃 ７ 偏向ヨーク ８、８ａ、８ｂ、８ｃ 電子ビーム ９ａ、９ｂ、９ｃ 陰極 １０ 制御格子電極 １１ 加速電極 １２ 集束電極 １３ 最終加速電極 １６ 主レンズ １７、２１ リム部 １８、２２ 外周電極 １９、２３ 電極板 ２０ａ、２０ｂ、２０ｃ、２４ａ、２４ｂ、２４ｃ 開
孔Reference Signs List 1 panel 2 funnel 3 phosphor screen 4 shadow mask 5 neck 6 electron gun 7 deflection yoke 8, 8a, 8b, 8c electron beam 9a, 9b, 9c cathode 10 control grid electrode 11 accelerating electrode 12 focusing electrode 13 final accelerating electrode 16 Main lenses 17, 21 Rim portions 18, 22 Outer electrodes 19, 23 Electrode plates 20a, 20b, 20c, 24a, 24b, 24c Opening
Claims (5)
平行に並んだ３本の電子ビームを発生する電子ビーム発
生手段と、前記３本の電子ビームを前記蛍光体スクリー
ンに集束させる主レンズを構成する、管軸方向に間隙を
挟んで前記３本の電子ビームを取り囲むように対向し、
少なくとも一方の周縁部に対向面から内側に突出するリ
ム部を有する外周電極と、前記外周電極のそれぞれに内
蔵され、前記３本の電子ビームの通過する３個の開孔が
前記一方向に沿って形成された電極板とを有し、前記電
極板の３個の開孔のうち両サイドの開孔の外側端間を結
ぶ水平方向の距離が、前記リム部の水平方向内径より大
きいことを特徴とするカラー受像管装置。1. An electron beam generating means for generating three electron beams arranged substantially parallel to one direction toward a phosphor screen, and a main lens for focusing the three electron beams on the phosphor screen. Constituting, facing each other so as to surround the three electron beams with a gap in the tube axis direction,
An outer peripheral electrode having a rim protruding inward from an opposing surface on at least one peripheral edge, and three apertures built in each of the outer peripheral electrodes and through which the three electron beams pass, along the one direction. And a horizontal distance connecting the outer ends of the openings on both sides of the three openings of the electrode plate is larger than a horizontal inner diameter of the rim portion. Characteristic picture tube device.
孔の径は、前記一方向で小さく、前記一方向に垂直な方
向で大きく形成されていることを特徴とする請求項１記
載のカラー受像管装置。2. The three holes of the electrode plate, wherein a diameter of a central hole is small in the one direction and large in a direction perpendicular to the one direction. 2. The color picture tube device according to 1.
の開孔の内側半分が２を越える次数の高次の曲線形状を
有することを特徴とする請求項１または２記載のカラー
受像管装置。3. The collar according to claim 1, wherein an inner half of the openings on both sides of the three openings of the electrode plate has a higher-order curved shape of an order exceeding two. Picture tube device.
の開孔の外側半分が半円形状であることを特徴とする請
求項１ないし３のいずれか１項記載のカラー受像管装
置。4. A color picture tube according to claim 1, wherein the outer half of the three holes of the electrode plate has a semicircular shape on both sides. apparatus.
孔の前記一方向の径は、前記一方向と垂直な方向の径よ
り小さく形成され、両サイドの開孔の内側半分は２を越
える次数の高次の曲線形状を有し、前記両サイドの開孔
の外側半分が半円形状であることを特徴とする請求項１
記載のカラー受像管装置。5. The diameter of the central hole among the three holes of the electrode plate in one direction is smaller than the diameter in a direction perpendicular to the one direction, and the inner half of the holes on both sides. Has a high-order curved shape of an order exceeding two, and the outer half of the apertures on both sides are semicircular.
A color picture tube device as described in the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07944997A JP3747557B2 (en) | 1997-03-31 | 1997-03-31 | Color picture tube device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07944997A JP3747557B2 (en) | 1997-03-31 | 1997-03-31 | Color picture tube device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10275570A true JPH10275570A (en) | 1998-10-13 |
| JP3747557B2 JP3747557B2 (en) | 2006-02-22 |
Family
ID=13690201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07944997A Expired - Fee Related JP3747557B2 (en) | 1997-03-31 | 1997-03-31 | Color picture tube device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3747557B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6570314B2 (en) | 2000-04-14 | 2003-05-27 | Matsushita Electric Industrial Co., Ltd. | Color display tube |
-
1997
- 1997-03-31 JP JP07944997A patent/JP3747557B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6570314B2 (en) | 2000-04-14 | 2003-05-27 | Matsushita Electric Industrial Co., Ltd. | Color display tube |
| EP1146540A3 (en) * | 2000-04-14 | 2004-12-01 | Matsushita Electric Industrial Co., Ltd. | Color display tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3747557B2 (en) | 2006-02-22 |
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