JPH07114115B2 - Inline electron gun - Google Patents
Inline electron gunInfo
- Publication number
- JPH07114115B2 JPH07114115B2 JP61100623A JP10062386A JPH07114115B2 JP H07114115 B2 JPH07114115 B2 JP H07114115B2 JP 61100623 A JP61100623 A JP 61100623A JP 10062386 A JP10062386 A JP 10062386A JP H07114115 B2 JPH07114115 B2 JP H07114115B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- voltage side
- side electrode
- low
- electron beam
- 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 - Lifetime
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Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明はカラー陰極線管用インライン形電子銃に関
し、詳しくは、主レンズを形成する電極の幾可学的変動
に対するフオーカスおよび静コンバーゼンス特性の変動
を改良したインライン形電子銃に関するのである。TECHNICAL FIELD The present invention relates to an in-line type electron gun for a color cathode ray tube, and more particularly, to a fluctuation in focus and static convergence characteristics with respect to a geometrical fluctuation of an electrode forming a main lens. It relates to an improved in-line type electron gun.
［従来の技術］ 従来のインライン形電子銃では、静コンバーゼンスの調
整は、偏心形、または、テーパ形と呼ばれる電極構成で
行なわれて来た。[Prior Art] In a conventional in-line type electron gun, static convergence adjustment has been performed by an electrode configuration called an eccentric type or a taper type.
第３図は、偏心形主レンズ形成電極の構成を示す縦断面
図で、（１）は低圧側（約５〜10KV）電極、（２）は高
圧側（20〜30KV）電極で、低圧側電極（１）には、同型
の円形の電子ビーム通過孔（21），（22），（23）が一
線上に等間隔で形成されており、高圧側電極（２）に
は、両サイドが、センタより径が大きい円形の電子ビー
ム通過孔（24），（25），（26）が、低圧側電極（１）
の電子ビーム通過孔（21），（22），（23）とそれぞれ
対向する位置に形成されており、両サイドの電子ビーム
通過孔（21）と（24）および（23）と（26）は、それぞ
れ電子ビーム通過孔（24），（26）が、外側にわずかな
量ｄ（0.1〜0.3mm）だけ偏心するように構成されてい
る。FIG. 3 is a longitudinal sectional view showing the structure of an eccentric type main lens forming electrode. (1) is a low voltage side (about 5 to 10 KV) electrode, (2) is a high voltage side (20 to 30 KV) electrode, and low voltage side The electrode (1) has circular electron beam passage holes (21), (22), (23) of the same type formed in a line at equal intervals, and the high voltage side electrode (2) has both sides. , The circular electron beam passage holes (24), (25), (26) whose diameter is larger than the center are the low voltage side electrode (1)
Of the electron beam passage holes (21), (22), and (23), respectively. The electron beam passage holes (21), (24), (23), and (26) on both sides are formed. The electron beam passage holes (24) and (26) are arranged to be eccentric to the outside by a slight amount d (0.1 to 0.3 mm).
また、第４図は、テーパ形主レンズ形成電極の構成を示
す縦断面図で、電子ビーム通過孔（21），（22），（2
3），（24），（25），（26）は同径の円形で、対向す
る電子ビーム通過孔（21）と（24），（22）と（25），
（23）と（26）はそれぞれ同軸上に配置されており、両
電極（１），（２）の対向面が、中央の電子ビーム通過
孔（22），（25）から、両サイドに向つて、それぞれ平
行に角度θ（２〜４゜）の傾斜をもつように構成されて
いる。FIG. 4 is a vertical cross-sectional view showing the structure of the tapered main lens forming electrode, which shows electron beam passage holes (21), (22), (2).
3), (24), (25), and (26) are circular with the same diameter, and have opposite electron beam passage holes (21) and (24), (22) and (25),
(23) and (26) are arranged coaxially, and the facing surfaces of the electrodes (1) and (2) are directed to both sides from the central electron beam passage holes (22) and (25). Each of them is configured to have an inclination of an angle θ (2 to 4 °) in parallel.
このように構成されている従来の偏心形およびテーパ形
の主レンズ形成電極は、両電極（１），（２）間に形成
される共通レンズと、各電子ビーム通過孔に形成される
レンズとで、主レンズを形成し、センタの電子ビーム
と、両サイド２本の電子ビームとを、カラー陰極線管の
画面の中心で、一点に集中させる作用を行う。The conventional eccentric and tapered main lens forming electrodes thus configured include a common lens formed between both electrodes (1) and (2) and a lens formed in each electron beam passage hole. Then, the main lens is formed, and the central electron beam and the two electron beams on both sides are concentrated at one point at the center of the screen of the color cathode ray tube.
［発明が解決しようとする問題点］ しかし、従来の主レンズ形成電極は、複雑な形状を有し
ており、かつ、所期の特性を得るためには、形状・寸法
が高精度であることが必要であるため、電子ビーム通過
孔の真円度，平面度，中心軸のずれ等があると、電子ビ
ーム通過の軸ずれ、主レンズの回転対称性のずれが生
じ、さらに両電極（１），（２）の支持するマルチフオ
ームガラスの圧着によつて応力が発生して電極の変形が
生じ、これらが原因となって静コンバーゼンスの変動、
およびフォーカス特性が劣化し、カラー陰極線管の特性
が損なわれるという問題点があった。[Problems to be Solved by the Invention] However, the conventional main lens forming electrode has a complicated shape, and in order to obtain the desired characteristics, the shape and dimensions must be highly accurate. Therefore, if the electron beam passage hole has roundness, flatness, deviation of the central axis, etc., deviation of the electron beam passage axis and deviation of the rotational symmetry of the main lens occur, and both electrodes (1 ) And (2), the stress is generated due to the pressure bonding of the multi-form glass supported by the electrodes, which causes the deformation of the electrode, which causes the fluctuation of the static convergence,
Also, there is a problem that the focus characteristics are deteriorated and the characteristics of the color cathode ray tube are impaired.
この発明は上記問題点を解消するためになされたもの
で、構成が簡単であるばかりでなく、各電極の製作時の
ばらつきによる影響を受けないで、優れた静コンバーゼ
ンス特性およびフォーカス特性を発揮させることがで
き、さらに、製造コストを抑えることができるインライ
ン形電子銃を提供することを目的とする。The present invention has been made to solve the above problems, and not only has a simple structure, but also exhibits excellent static convergence characteristics and focus characteristics without being affected by variations in manufacturing each electrode. It is an object of the present invention to provide an in-line type electron gun that can be manufactured and can be suppressed in manufacturing cost.
［問題点を解決するための手段］ この発明に係るインライン形電子銃は、筒状に形成され
た本体電極（電極13,電極14）と，この本体電極の一端
側を塞ぐように設けられるとともに、少なくとも両サイ
ドと中央とに電子ビーム通過孔（21a〜23a,21b〜23b）
が形成され、両サイドの電子ビーム通過孔（21a,23a,21
b,23b）の径が中央の電子ビーム通過孔（22a,22b）の径
より大きく形成されて成る平板電極（12a,12b）と，こ
の平板電極を介して上記本体電極とは反対側に設けられ
る共通レンズ形成用電極（長円形筒状電極11a,11b）と
から成り、全体として筒状に形成される低圧側電極１及
び高圧側電極２を備え、上記低圧側電極と高圧側電極の
各共通レンズ形成用電極の先端側同志が所定の間隔を隔
てて対向配置されて、上記低圧側電極と高圧側電極とが
同軸上に配設されるとともに、上記低圧側電極と高圧側
電極の各共通レンズ形成用電極の先端間に共通レンズ４
が形成され、かつ上記低圧側電極の平板電極に形成され
た各電子ビーム通過孔には収束作用を有するレンズ（5
1,52,53）が形成され、上記高圧側電極の平板電極に形
成された各電子ビーム通過孔には発散作用を有するレン
ズ（61,62,63）が形成されて成るものであり、さらに、
上記低圧側電極と高圧側電極の平板電極及び共通レンズ
形成用電極を同形・同寸法に形成し、上記低圧側電極
用，高圧側電極用に形成された各平板電極及び各共通レ
ンズ形成用電極の製作時の誤差が同じ方向に現われるよ
うに、上記低圧側電極と高圧側電極の各本体電極に対し
て平板電極及び共通レンズ形成用電極を組付けて成るこ
とを特徴とするものである。[Means for Solving the Problems] An in-line type electron gun according to the present invention is provided with a cylindrical body electrode (electrodes 13 and 14) and one end side of the body electrode. , Electron beam passage holes (21a-23a, 21b-23b) on at least both sides and center
Are formed, and electron beam passage holes (21a, 23a, 21
b, 23b) has a diameter larger than the diameter of the central electron beam passage hole (22a, 22b), and the plate electrode (12a, 12b) is provided on the opposite side of the body electrode via this plate electrode. Common electrode forming electrodes (ellipsoidal cylindrical electrodes 11a, 11b), and is provided with a low-voltage side electrode 1 and a high-voltage side electrode 2 formed in a cylindrical shape as a whole, and each of the low-voltage side electrode and the high-voltage side electrode. The front end sides of the common lens forming electrode are opposed to each other with a predetermined gap, the low voltage side electrode and the high voltage side electrode are coaxially arranged, and each of the low voltage side electrode and the high voltage side electrode is arranged. The common lens 4 is provided between the tips of the common lens forming electrodes.
And the electron beam passage holes formed in the flat plate electrode of the low-voltage side electrode have a converging lens (5
1, 52, 53), and each electron beam passage hole formed in the plate electrode of the high-voltage side electrode is formed with a lens (61, 62, 63) having a divergent action. ,
The low-voltage side electrode and the high-voltage side electrode, the flat plate electrode and the common lens forming electrode are formed in the same shape and the same size, and the flat plate electrodes and the common lens forming electrodes formed for the low voltage side electrode and the high voltage side electrode, respectively. The plate electrode and the common lens forming electrode are assembled to each of the main electrodes of the low-voltage side electrode and the high-voltage side electrode so that the error during the production appears in the same direction.
［作用］ 低圧側電極と高圧側電極に設けられたレンズによる作用
は電子ビームに対して逆方向に作用する。そして、低圧
側電極と高圧側電極の平板電極及び共通レンズ形成用電
極を同形・同寸法に形成し、各平板電極及び各共通レン
ズ形成用電極の製作時の誤差が同じ方向に現われるよう
に、上記低圧側電極と高圧側電極の各本体電極に対して
平板電極及び共通レンズ形成用電極を組付けるので、電
子ビーム通過孔の位置，形状，寸法などの変動に伴う上
記相反するレンズの作用の変化が相殺される。[Action] The action of the lenses provided on the low-voltage side electrode and the high-voltage side electrode acts in the opposite direction to the electron beam. Then, the low-voltage side electrode and the high-voltage side electrode of the flat plate electrode and the common lens forming electrode are formed in the same shape and the same size, so that the errors in manufacturing the flat plate electrode and the common lens forming electrode appear in the same direction, Since the flat plate electrode and the common lens forming electrode are assembled to each of the main electrodes of the low-voltage side electrode and the high-voltage side electrode, the action of the contradictory lens due to the variation of the position, shape, size, etc. of the electron beam passage hole can be prevented. Changes are offset.
［実施例］ 以下、本発明の一実施例を説明する。第１図はこの発明
のインライン形電子銃の要部である主レンズ部の一実施
例を示す縦断面図であり、同図において、（11a），（1
1b）は長円形断面の筒状電極（以下、「長円形筒状電
極」という）、（12a），（12b）は一線上にそれぞれ３
つの電子ビーム通過孔（21a），（22a），（23a）、（2
1b），（22b），（23b）が形成されている平板電極で、
（11a）と（11b），（12a）と（12b）は、それぞれ同形
・同寸法に形成されている。（13），（14）は筒状の電
極で、電極（11a），（12a），（13）で低圧側電極
（１）を構成し、電極（11b），（12b），（14）で高圧
側電極（２）を構成しており、図示していないビートガ
ラスによつて、所定の間隔でもつて、同軸に固定されて
いる。（４）は長円形筒状電極（11a），（11b）の間に
形成される共通レンズ、（51）〜（53），（61）〜（6
3）は、平板電極（12a），（12b）の各電子ビーム通過
孔（21a）〜（23a），（21b）〜（23b）にそれぞれ形成
されるレンズで、これらのレンズ（４），（51）〜（5
3），（61）〜（63）で主レンズ（５）を構成し、電極
（13），（14）内は、ほぼ等電位領域に形成されてい
る。[Example] An example of the present invention will be described below. FIG. 1 is a longitudinal sectional view showing an embodiment of a main lens portion which is a main part of an in-line type electron gun of the present invention. In FIG.
1b) is a tubular electrode with an oval cross section (hereinafter referred to as "oval tubular electrode"), and (12a) and (12b) are 3 in a line.
Two electron beam passage holes (21a), (22a), (23a), (2
1b), (22b), (23b) are formed on the plate electrode,
(11a) and (11b), (12a) and (12b) are formed in the same shape and the same size, respectively. (13) and (14) are cylindrical electrodes. The electrodes (11a), (12a), and (13) constitute the low-voltage side electrode (1), and the electrodes (11b), (12b), and (14) are The high voltage side electrode (2) is configured and is coaxially fixed by beet glass (not shown) at a predetermined interval. (4) is a common lens formed between the elliptical cylindrical electrodes (11a) and (11b), and (51) to (53) and (61) to (6).
3) are lenses formed in the electron beam passage holes (21a) to (23a) and (21b) to (23b) of the flat plate electrodes (12a) and (12b), respectively. 51) ~ (5
3) and (61) to (63) form a main lens (5), and the electrodes (13) and (14) are formed in substantially equipotential regions.
なお、この実施例では、長円形筒状電極（11a），（11
b）および平板電極（12a），（12b）は、それぞれ同一
製作ロツトのものが用いられ、かつ、長径方向の向き
が、製作時の向きと同じ向きとなるように組立てられて
いるので、形状・寸法の変化は、同じ側に位置してい
る。In this example, the elliptic cylindrical electrodes (11a), (11
b) and the flat plate electrodes (12a), (12b) are made of the same manufacturing rod, and are assembled so that the major axis direction is the same as the manufacturing direction. -Dimensional changes are located on the same side.
つぎに、この実施例の動作、作用を説明する。Next, the operation and action of this embodiment will be described.
３本の電子ビームB,G,Rは、個々のレンズ（51）〜（5
3），（61）〜（63）と共通レンズ（４）との総合的収
束作用（各電子ビームB,G,Rにとつては、ほぼ回転対称
な収束作用）によつて所定の画面に集束するとともに、
共通レンズ（４）によつて両サイドの電子ビームはセン
タの電子ビームの方に曲げられ、画面中央で３本の電子
ビームが１点に集中する。The three electron beams B, G, and R are transmitted through the individual lenses (51) to (5
3), (61) to (63) and the common lens (4) provide a comprehensive focusing action (for each electron beam B, G, R, a focusing action that is substantially rotationally symmetric) to a predetermined screen. While focusing
By the common lens (4), the electron beams on both sides are bent toward the center electron beam, and the three electron beams are concentrated at one point in the center of the screen.
これらの異なつた性能（収束と集中）は、各電極（1
1），（12）の形状・寸法（電子ビーム通過孔の大き
さ、両電極（１），（２）の間隔等）を、適当に選択す
ることによつて達成することができる。These different performances (convergence and concentration) are
The shapes and dimensions of 1) and (12) (size of electron beam passage hole, interval between both electrodes (1) and (2), etc.) can be achieved by appropriate selection.
ところで、電子レンズ（51）〜（53），（61）〜（63）
のうち、低圧側電極（１）の電子レンズ（51）〜（53）
は収束作用を有し、高圧側電極（２）の電子レンズ（6
1）〜（63）は発散作用を有しているので、主レンズ
（５）を構成する電極（11a）と（11b），（12a），（1
2b）は、同形・同寸法であり、かつ、製作時の誤差が、
同じ方向となるように組立てられているので、電子ビー
ムに作用する力は逆方向に作用するので、形状・寸法の
変動にともなう作用の変化を相殺するように働く。By the way, electronic lenses (51)-(53), (61)-(63)
Of these, the electron lenses (51) to (53) of the low-voltage side electrode (1)
Has a converging function, and the electron lens (6
Since 1) to (63) have a diverging action, the electrodes (11a) and (11b), (12a), (1
2b) has the same shape and dimensions, and the manufacturing error
Since they are assembled in the same direction, the force acting on the electron beam acts in the opposite direction, so that the change in the action due to the change in the shape and size is offset.
第２図は長円形筒状電極（11a），（11b）の長径の長さ
Ａを、±ΔＡ（数10μｍ）だけ変化させた場合のフオ
ーカス特性の変化を、電子計算機でシユミレーシヨンし
た結果を示す特性図で、電子ビーム通過孔の配列方向の
収束距離（電極（11a），（11b）間の中間点から、各電
子ビームが各自の中心軸と交わる点までの距離）をｆと
し、縦軸に1/fを、横軸にＡをとつて、ΔＡに対する1/f
の変化を示したものである。FIG. 2 shows the result of computer simulation of changes in the focus characteristics when the length A of the major axis of the elliptical cylindrical electrodes (11a) and (11b) is changed by ± ΔA (several 10 μm). In the characteristic diagram, the convergence distance in the arrangement direction of the electron beam passage holes (the distance from the midpoint between the electrodes (11a) and (11b) to the point where each electron beam intersects its own central axis) is f, and the vertical axis 1 / f to and the horizontal axis to A, 1 / f to ΔA
It shows the change of.
結果は低圧側電極（１）または高圧側電極（２）の形状
・寸法が単独に変化した場合に比べて、この実施例のよ
うに、両方が同方向に等量だけ変化した場合の1/fの変
化量は約半分になり、ΔＡの変動に対するフオーカス劣
化は従来のものに比べて約半分に軽減されると考えられ
る。As a result, as compared with the case where the shape / dimension of the low-voltage side electrode (1) or the high-voltage side electrode (2) is changed independently, it is 1/2 when both are changed by the same amount in the same direction as in this embodiment. It is considered that the amount of change in f is reduced to about half, and the focus deterioration due to the change in ΔA is reduced to about half that of the conventional one.
このことは、主レンズ（５）を構成する電極（11a），
（11b）および（12a），（12b）はまつたく同一形状
に、同一ロツトで製作すれば、製造時のばらつき（例え
ばロツト内変動）による特性のばらつきを、従来のもの
よりも半減出来ることを意味している。This means that the electrodes (11a) that make up the main lens (5),
If (11b), (12a), and (12b) are manufactured in the same shape with the same eyelet, it is possible to reduce the characteristic variation due to the variation during manufacturing (for example, variation within the lot) to half that of the conventional one. I mean.
なお、静コンバーゼンス特性についても同様の効果が得
られる。A similar effect can be obtained for the static convergence characteristic.
［発明の効果］ 以上説明したように、この発明のインライン形電子銃に
よれば、本体電極と，両サイドの電子ビーム通過孔の径
が中央の電子ビーム通過孔の径より大きく形成されて成
る平板電極と，共通レンズ形成用電極とから成る低圧側
電極及び高圧側電極を備えており、上記低圧側電極と高
圧側電極の各共通レンズ形成用電極の先端側同志が所定
の間隔を隔てて対向配置されて、上記低圧側電極と高圧
側電極とが同軸上に配設されるとともに、上記低圧側電
極と高圧側電極の各共通レンズ形成用電極の先端間に共
通レンズが形成され、かつ上記低圧側電極の平板電極に
形成された各電子ビーム通過孔には収束作用を有するレ
ンズが形成され、上記高圧側電極の平板電極に形成され
た各電子ビーム通過孔には発散作用を有するレンズが形
成されて成るものであり、低圧側電極と高圧側電極の平
板電極及び共通レンズ形成用電極を同形・同寸法に形成
し、上記低圧側電極用，高圧側電極用に形成された各平
板電極及び各共通レンズ形成用電極の製作時の誤差が同
じ方向に現われるように、上記低圧側電極と高圧側電極
の各本体電極に対して平板電極及び共通レンズ形成用電
極を組付けて成るので、電子ビーム通過孔の位置，形
状，寸法などの変動に伴う低圧側電極と高圧側電極の相
反するレンズの作用の変化が相殺され、構成が簡単であ
るばかりでなく、各電極の製作時のばらつきによる影響
を受けることなく、静コンバーゼンス特性およびフォー
カス特性の変化を少なくでき、品質の安定したインライ
ン形電子銃が得られる。また、低圧側電極用，高圧側電
極用の各平板電極及び各共通レンズ形成用電極は、例え
ば、平板電極，共通レンズ形成用電極毎に簡単な成形装
置でそれぞれ製造でき、それを本体電極に対して組付け
るので、高価な金型等を用いる必要がなく、製造コスト
を抑えることができる。[Effects of the Invention] As described above, according to the in-line type electron gun of the present invention, the diameter of the body electrode and the electron beam passage holes on both sides are formed larger than the diameter of the central electron beam passage hole. A low-voltage side electrode and a high-voltage side electrode composed of a flat plate electrode and a common lens forming electrode are provided, and the tip side of each common lens forming electrode of the low-voltage side electrode and the high-voltage side electrode is separated by a predetermined distance. The low-voltage side electrode and the high-voltage side electrode are arranged so as to face each other, and a common lens is formed between the tips of the common-lens forming electrodes of the low-voltage side electrode and the high-voltage side electrode, and A lens having a converging action is formed in each electron beam passage hole formed in the flat plate electrode of the low voltage side electrode, and a lens having a diverging action is formed in each electron beam passage hole formed in the flat plate electrode of the high voltage side electrode. Formed The flat electrode of the low-voltage side electrode and the high-voltage side electrode and the common lens forming electrode are formed in the same shape and the same size, and each flat plate electrode formed for the low-voltage side electrode and the high-voltage side electrode Since the plate electrode and the common lens forming electrode are assembled to the main electrodes of the low-voltage side electrode and the high-voltage side electrode so that the errors in manufacturing the common lens forming electrodes appear in the same direction, The change in the action of the contradictory lens of the low-voltage side electrode and the high-voltage side electrode due to the variation in the position, shape, and size of the beam passage hole is canceled out, and not only the configuration is simple, but also due to variations in the manufacture of each electrode. It is possible to obtain an in-line type electron gun with stable quality, which can reduce changes in static convergence characteristics and focus characteristics without being affected. Further, the flat plate electrodes for the low-voltage side electrode and the high-voltage side electrode and the common lens forming electrodes can be manufactured, for example, by a simple molding device for each of the flat plate electrode and the common lens forming electrode. Since they are assembled to each other, it is not necessary to use an expensive mold or the like, and the manufacturing cost can be suppressed.
第１図はこの発明のインライン形電子銃の要部である主
レンズ部の一実施例を示す縦断面図、第２図はこの実施
例の電極の寸法の変化に対するフオーカスの変化特性を
示す図、第３図および第４図は、それぞれ従来の主レン
ズ形成電極の縦断面図である。 （１）……低圧側電極、（２）……高圧側電極、（４）
……共通レンズ、（５）……主レンズ、（11a），（11
b）……長円形筒状電極、（12a），（12b）……平板電
極、（21a），（21b），（22a），（22b），（23a），
（23b）……電子ビーム通過孔。 なお、各図中、同一符号は同一、または相当部分を示
す。FIG. 1 is a vertical sectional view showing an embodiment of a main lens portion which is a main part of an in-line type electron gun of the present invention, and FIG. 2 is a view showing a change characteristic of a focus with respect to a change in size of an electrode of this embodiment. , FIG. 3 and FIG. 4 are vertical sectional views of a conventional main lens forming electrode, respectively. (1) …… Low voltage side electrode, (2) …… High voltage side electrode, (4)
...... Common lens, (5) …… Main lens, (11a), (11
b) …… Oval cylindrical electrode, (12a), (12b) …… Plate electrode, (21a), (21b), (22a), (22b), (23a),
(23b) ... electron beam passage hole. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
極の一端側を塞ぐように設けられるとともに、少なくと
も両サイドと中央とに電子ビーム通過孔が形成され、両
サイドの電子ビーム通過孔の径が中央の電子ビーム通過
孔の径より大きく形成されて成る平板電極と，この平板
電極を介して上記本体電極とは反対側に設けられる筒状
の共通レンズ形成用電極とから成り、全体として筒状に
形成される低圧側電極及び高圧側電極を備え、 上記低圧側電極と高圧側電極の各共通レンズ形成用電極
の先端側同志が所定の間隔を隔てて対向配置されて、上
記低圧側電極と高圧側電極とが同軸上に配設されるとと
もに、上記低圧側電極と高圧側電極の各共通レンズ形成
用電極の先端間に共通レンズが形成され、かつ上記低圧
側電極の平板電極に形成された各電子ビーム通過孔には
収束作用を有するレンズが形成され、上記高圧側電極の
平板電極に形成された各電子ビーム通過孔には発散作用
を有するレンズが形成されて成るものであり、 さらに、上記低圧側電極と高圧側電極の平板電極及び共
通レンズ形成用電極を同形・同寸法に形成し、上記低圧
側電極用，高圧側電極用に形成された各平板電極及び各
共通レンズ形成用電極の製作時の誤差が同じ方向に現わ
れるように、上記低圧側電極と高圧側電極の各本体電極
に対して平板電極及び共通レンズ形成用電極を組付けて
成ることを特徴とするインライン形電子銃。1. A body electrode formed in a tubular shape, and an electron beam passage hole provided at least on both sides and in the center of the body electrode so as to close one end side of the body electrode. A plate electrode having a hole diameter larger than that of the central electron beam passage hole, and a cylindrical common lens forming electrode provided on the opposite side of the body electrode via the plate electrode, A low-voltage side electrode and a high-voltage side electrode, which are formed in a tubular shape as a whole, are provided. The low voltage side electrode and the high voltage side electrode are arranged coaxially, a common lens is formed between the tips of the common lens forming electrodes of the low voltage side electrode and the high voltage side electrode, and the flat plate of the low voltage side electrode. Formed on the electrode A lens having a converging action is formed in each electron beam passage hole formed therein, and a lens having a diverging action is formed in each electron beam passage hole formed in the flat plate electrode of the high-voltage side electrode, Further, the plate electrodes of the low-voltage side electrode and the high-voltage side electrode and the common lens forming electrode are formed in the same shape and the same size, and the plate electrodes and the common lens are formed for the low-voltage side electrode and the high-voltage side electrode, respectively. An in-line type characterized in that a plate electrode and a common lens forming electrode are assembled to each of the main electrodes of the low-voltage side electrode and the high-voltage side electrode so that the error in manufacturing the production electrode appears in the same direction. Electron gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61100623A JPH07114115B2 (en) | 1986-04-28 | 1986-04-28 | Inline electron gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61100623A JPH07114115B2 (en) | 1986-04-28 | 1986-04-28 | Inline electron gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62256347A JPS62256347A (en) | 1987-11-09 |
| JPH07114115B2 true JPH07114115B2 (en) | 1995-12-06 |
Family
ID=14278961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61100623A Expired - Lifetime JPH07114115B2 (en) | 1986-04-28 | 1986-04-28 | Inline electron gun |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07114115B2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56390Y2 (en) * | 1974-10-17 | 1981-01-07 | ||
| JPS5152668U (en) * | 1974-10-18 | 1976-04-21 | ||
| US4400649A (en) * | 1981-07-10 | 1983-08-23 | Rca Corporation | Color picture tube having an improved expanded focus lens type inline electron gun |
| JPS58103752A (en) * | 1981-12-16 | 1983-06-20 | Hitachi Ltd | Electron gun for color picture tube |
| JPS5951440A (en) * | 1982-09-16 | 1984-03-24 | Matsushita Electronics Corp | In-line type electron gun and manufacturing method thereof |
-
1986
- 1986-04-28 JP JP61100623A patent/JPH07114115B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62256347A (en) | 1987-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |