JPH022257B2 - - Google Patents
Info
- Publication number
- JPH022257B2 JPH022257B2 JP22591286A JP22591286A JPH022257B2 JP H022257 B2 JPH022257 B2 JP H022257B2 JP 22591286 A JP22591286 A JP 22591286A JP 22591286 A JP22591286 A JP 22591286A JP H022257 B2 JPH022257 B2 JP H022257B2
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- support member
- eyelet
- electron gun
- gun assembly
- 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
Links
- 239000011521 glass Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010792 warming Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
- Solid Thermionic Cathode (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電子銃構体、特にインライン型電子銃
構体の陰極支持部に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electron gun assembly, particularly to a cathode support portion of an in-line electron gun assembly.
一般に、互いに独立した３個の陰極と、これら
の陰極から所定距離離間して配置された３電子銃
に共通の制御格子（以下第１格子と称する）と、
この第１格子から所定距離離間して配置された３
電子銃に共通の加速格子（以下第２格子と称す
る）とから少なくとも構成されたインライン型３
電子銃構体においては、各電子銃のカツトオフ電
圧が必ずしも同一にならぬため一定の電流値を得
るためにこれらの各陰極に各々異なるバイアス電
圧が供給されている。これはカラー受像管が良好
な標準白色画像を得るために互いに等しい各陰極
電流（以下IKと称する）の関係を動作開始から短
時間に一致させることが望ましい。
Generally, three mutually independent cathodes, a control grid common to the three electron guns (hereinafter referred to as a first grid) arranged at a predetermined distance from these cathodes,
3 arranged at a predetermined distance from this first grid.
An in-line type 3 comprising at least an acceleration grating (hereinafter referred to as a second grating) common to the electron gun.
In the electron gun assembly, since the cutoff voltages of the electron guns are not necessarily the same, different bias voltages are supplied to each of these cathodes in order to obtain a constant current value. In order for the color picture tube to obtain a good standard white image, it is desirable that the relationships between the cathode currents (hereinafter referred to as IK ), which are equal to each other, be matched within a short period of time from the start of operation.
従来、ウオーミングアツプ期間中は、この望ま
しいIKの同等性は維持されなかつた。このウオー
ミングアツプ期間とは、ヒータに通電してから電
極部品の熱的変形が平衡状態に達するまでの時間
で、ヒータに通電してから最初の20分間程度を大
体含んでいるものと通常考えられている。この同
等性が維持されなくなる理由は、陰極とこの陰極
を構成する陰極構体とが加熱されたとき、３個の
電子銃の陰極と第１格子、第２格子間の所定間隔
が各々異なつた変化をすることに起因している。 Traditionally, this desired I K equivalence was not maintained during the warm-up period. This warm-up period is the time from when electricity is applied to the heater until the thermal deformation of the electrode components reaches an equilibrium state, and is usually considered to include approximately the first 20 minutes after electricity is applied to the heater. ing. The reason why this equivalence is not maintained is that when the cathode and the cathode assembly that constitutes the cathode are heated, the predetermined intervals between the cathodes of the three electron guns and the first and second gratings change differently. This is due to the fact that
第６図ａ，ｂは従来の電子銃構体、特に陰極構
体部分を示す電子銃の軸に平行な面の要部断面図
である。同図において、この電子銃構体１は、ヒ
ータ２を収納する筒状の陰極３と、この陰極３を
保持する陰極アイレツト４と、この陰極アイレツ
ト４を保持するカツプ状の陰極アイレツト支持部
材５と、この陰極アイレツト支持部材５に固定さ
れた陰極支持部材６と、上記陰極３から放射され
る電子ビームを制御する第１格子７と、上記電子
ビームを加速する第２格子８とがそれぞれ同一軸
上にそれぞれ所定距離離間して配置され、絶縁ガ
ラス９によつて固定されている。なお、第６図ｂ
における符号の添字であるＧ，Ｂ，Ｒは、それぞ
れ緑色用、青色用、赤色用を表現している。 FIGS. 6a and 6b are sectional views of main parts of a conventional electron gun assembly, particularly the cathode assembly, taken along a plane parallel to the axis of the electron gun. In the figure, this electron gun assembly 1 includes a cylindrical cathode 3 that houses a heater 2, a cathode eyelet 4 that holds this cathode 3, and a cup-shaped cathode eyelet support member 5 that holds this cathode eyelet 4. , a cathode support member 6 fixed to the cathode eyelet support member 5, a first grating 7 for controlling the electron beam emitted from the cathode 3, and a second grating 8 for accelerating the electron beam are coaxial. They are placed on top of each other at a predetermined distance apart from each other and fixed by insulating glass 9. In addition, Fig. 6b
The subscripts G, B, and R represent green, blue, and red, respectively.
このように構成された電子銃構体において、ヒ
ータ２に通電後、熱的平衡状態となつたとき、陰
極３は陰極アイレツト４より高い温度で動作し、
また陰極アイレツト４は陰極支持部材６よりも高
い温度で動作する。換言すれば、ウオーミングア
ツプ中の温度上昇は、陰極支持部材６より陰極ア
イレツト４の方が早く、また陰極アイレツト４よ
り陰極３の方が早いことになる。この結果、この
電子銃構体を構成する電極部品間の寸法が複雑に
変化する。この状態を第７図、第８図を用いて詳
細に説明する。すなわち、第７図は電子銃構体１
の要部拡大断面図であり矢印はそれぞれ対応する
構成部品の伸びの方向を示している。また第８図
は経時変化に対する陰極各部の伸びを示した特性
曲線であり、この特性曲線に付された符号は第７
図に示す矢印方向の符号と一致させている。これ
らの図において、このウオーミングアツプ期間中
の温度上昇により陰極３は、第７図に矢印Ａで示
す第１格子７の方向に向つて第８図にＡで示した
特性で伸張する。一方、陰極アイレツト４は、第
１格子７から離れる矢印Ｂ方向に向つて第８図に
Ｂで示した特性で伸張し、陰極アイレツト支持部
材５は、第１格子７の方向に向つて矢印Ｃ方向に
向つて第８図のＣで示す特性で伸張し、さらに陰
極支持部材６は、矢印Ｄ方向に示した第１格子７
方向に向つて第８図にＤで示した特性で伸張す
る。この結果、陰極３、陰極アイレツト４、陰極
アイレツト支持部材５および陰極支持部材６から
なる陰極構体はトータル的に第８図に曲線Ｅで示
したように第１格子７側に伸張することになる。
したがつて、以上説明したようなこれらの熱変形
による伸張は、陰極３と第１格子７との間隔を予
め所定寸法に設定しておいた間隔を変化させるこ
とになる。ここで、上記陰極構体における熱的変
化は、前述したように陰極３および陰極アイレツ
ト４がヒータ２に近接していることと、薄板を用
いていることにより比較的短時間で熱的平衡に達
する。そして、これらが熱的平衡に達する時間は
第６図、第７図に示す陰極構体では約５分であ
る。したがつて、ウオーミングアツプの最初の５
分経過後、各陰極と第１格子７との間隔を変化さ
せる主な原因は、陰極アイレツト支持部材５と陰
極支持部材６の熱膨張である。したがつて、陰極
３と第１格子７との間の間隔がウオーミングアツ
プ中に変化することを認識すれば動作温度の平衡
状態が達成されるまで通常陰極電流IKの設定がで
きない。そして、この動作温度の平衡状態は、ヒ
ータ２に通電後、約20分後に達成される。また、
ウオーミングアツプ後３個の陰極のIKが等しく維
持されるように各電極間の不均一な間隔を補正し
てバイアス電圧は調整され、一度設定されたバイ
アス電圧は変化させることができない。したがつ
て、一度設定されたIKの同等性は動作温度の平衡
状態になるまで維持できないという不都合が生じ
る。
In the electron gun assembly configured in this manner, when the heater 2 is energized and reaches a thermal equilibrium state, the cathode 3 operates at a higher temperature than the cathode eyelet 4.
Also, the cathode eyelet 4 operates at a higher temperature than the cathode support member 6. In other words, the temperature rise during warming up is faster in the cathode eyelet 4 than in the cathode support member 6, and faster in the cathode 3 than in the cathode eyelet 4. As a result, the dimensions between the electrode parts constituting this electron gun structure change in a complicated manner. This state will be explained in detail using FIGS. 7 and 8. That is, FIG. 7 shows the electron gun structure 1.
It is an enlarged cross-sectional view of the main part of , and the arrows indicate the direction of elongation of the corresponding component. Furthermore, Fig. 8 is a characteristic curve showing the elongation of each part of the cathode with respect to changes over time.
The symbols correspond to the arrow directions shown in the figure. In these figures, due to the temperature increase during this warming-up period, the cathode 3 expands in the direction of the first grating 7, indicated by arrow A in FIG. 7, with the characteristic indicated by A in FIG. 8. On the other hand, the cathode eyelet 4 extends in the direction of arrow B away from the first grating 7 with the characteristic indicated by B in FIG. The cathode support member 6 extends in the direction shown by C in FIG.
It expands in the direction with the characteristic shown by D in FIG. As a result, the cathode assembly consisting of the cathode 3, cathode eyelet 4, cathode eyelet support member 5, and cathode support member 6 extends in total toward the first grid 7 side as shown by curve E in FIG. .
Therefore, the expansion due to thermal deformation as described above changes the interval between the cathode 3 and the first lattice 7, which has been set to a predetermined dimension in advance. Here, the thermal change in the cathode assembly reaches thermal equilibrium in a relatively short time due to the proximity of the cathode 3 and cathode eyelet 4 to the heater 2 and the use of thin plates as described above. . The time required for these to reach thermal equilibrium is approximately 5 minutes in the cathode structures shown in FIGS. 6 and 7. Therefore, the first 5 warm-up
The main cause of the change in the spacing between each cathode and the first grid 7 after a few minutes is the thermal expansion of the cathode eyelet support member 5 and the cathode support member 6. Therefore, recognizing that the spacing between the cathode 3 and the first grid 7 changes during warm-up, the cathode current I K cannot normally be set until an equilibrium state of the operating temperature is achieved. This equilibrium state of operating temperature is achieved approximately 20 minutes after the heater 2 is energized. Also,
After warming up, the bias voltage is adjusted by correcting the uneven spacing between the electrodes so that the I K of the three cathodes is maintained equally, and once set, the bias voltage cannot be changed. Therefore, a disadvantage arises in that the equality of I K once set cannot be maintained until the operating temperature reaches an equilibrium state.
また、第９図は従来の電子銃構体の陰極電流Ik
の経時変化を示したIK曲線である。すなわち、曲
線Ｉはインライン状に配置された３本の陰極構体
のうち中央部に配置された中央陰極の電流特性を
示したものであり、曲線は隣接配置された外側
陰極の各電流特性を示したものである。同図にお
いて、曲線および曲線ともヒータ２に通電後
30秒以内におけるIKの変化は陰極３が第１格子７
方向に向つて伸張することに支配されており、ヒ
ータ２に通電後30秒〜５分以内におけるIKの変化
は、陰極アイレツト４が第１格子７から離れる方
向に伸張することに支配される領域であることを
示している。さらにヒータ２に通電して５分以後
のIKの変化は主に陰極アイレツト支持部材５、第
１格子７および第２格子８の熱的変形に支配され
て変化する。この場合、第１格子７および第２格
子８の中央と両外側陰極の熱的変形量が異なるた
め、ウオーミングアツプ後に設定したIKに復帰す
るまでの状態が異なり、３本の陰極のIK同等性を
得て良好な白色画像を得るにはウオーミングアツ
プ期間中とほぼ同等の時間が必要である。したが
つて、このような問題を解決するためには、熱的
変形の等しい第１格子および第２格子の構造にす
ることが望ましいが、このような構造は極めて困
難であつた。 Furthermore, Fig. 9 shows the cathode current I k of the conventional electron gun assembly.
This is an IK curve showing the change over time. That is, the curve I shows the current characteristics of the central cathode placed in the center of the three cathode structures arranged in-line, and the curve I shows the current characteristics of the outer cathodes placed adjacent to each other. It is something that In the figure, both the curve and the curve show that after energizing heater 2,
The change in I K within 30 seconds indicates that the cathode 3 is the first lattice 7.
Changes in I K within 30 seconds to 5 minutes after the heater 2 is energized are governed by the expansion of the cathode eyelet 4 away from the first grid 7. This indicates that it is a region. Further, the change in I K after 5 minutes after the heater 2 is energized is mainly controlled by the thermal deformation of the cathode eyelet support member 5, the first grating 7, and the second grating 8. In this case, since the amount of thermal deformation between the center and both outer cathodes of the first grating 7 and the second grating 8 is different, the state until the I K returns to the set value after warming up is different, and the I K of the three cathodes is different. Approximately the same amount of time as the warm-up period is required to achieve equivalence and obtain a good white image. Therefore, in order to solve this problem, it is desirable to have a structure in which the first lattice and the second lattice undergo equal thermal deformation, but such a structure has been extremely difficult.
したがつて、本発明の目的は上記の問題点を解
決するためになされたものであり、第１格子およ
び第２格子の構造にかかわりなく、陰極支持部材
と陰極アイレツト支持部材の電子銃軸方向の取り
付け高さを変更することによりIkの同等性を容易
に得られるようにした電子銃構体を提供すること
にある。 Therefore, an object of the present invention has been made to solve the above-mentioned problems, and regardless of the structure of the first grating and the second grating, the electron gun axis direction of the cathode support member and the cathode eyelet support member is An object of the present invention is to provide an electron gun assembly in which equivalence of Ik can be easily obtained by changing the mounting height of the electron gun.
このような目的を達成するために本発明による
電子銃構体は陰極支持部材の電子銃軸方向の取付
位置を変更することにより高温動作領域での温度
変化によるIkの変化を３本の陰極についてもほぼ
等しく維持させ、上記各陰極のIkの一致時間を大
幅に短縮させるようにしたものである。
In order to achieve such an object, the electron gun assembly according to the present invention suppresses the change in I k due to temperature change in the high temperature operation region for the three cathodes by changing the mounting position of the cathode support member in the electron gun axis direction. In this embodiment, the I k values of each cathode are kept almost equal, and the time required for the I k of each of the cathodes to match is significantly shortened.
陰極支持部材の電子銃軸方向の取付位置を変更
することにより陰極の移動をほぼ一致させること
ができる。
By changing the attachment position of the cathode support member in the axial direction of the electron gun, the movements of the cathodes can be made almost the same.
以下図面を用いて本発明による電子銃構体につ
いて詳細に説明する。
The electron gun assembly according to the present invention will be described in detail below with reference to the drawings.
第１図は本発明による電子銃構体、特に陰極構
体部分の一実施例を示す要部側面図である。この
場合、従来と比較する便宜上、中心線より左側は
従来構造を示し、右側は本願発明を示したもので
ある。同図において、５はカツプ状の陰極アイレ
ツト支持部材であり、この陰極アイレツト支持部
材５の外面には、従来の陰極支持部材６よりその
取付位置を寸法l1だけ図示しないステム側方向に
下げた陰極支持部材６ａが溶接固定されている。
つまり、陰極支持部材６を陰極アイレツト支持部
材５へ固定する取付位置を従来より寸法l1だけ第
１格子７から遠ざけて溶接固定させたものであ
る。 FIG. 1 is a side view of essential parts showing an embodiment of an electron gun assembly according to the present invention, particularly a cathode assembly portion. In this case, for convenience of comparison with the conventional structure, the left side of the center line shows the conventional structure, and the right side shows the present invention. In the figure, reference numeral 5 denotes a cup-shaped cathode eyelet support member, and on the outer surface of this cathode eyelet support member 5, the attachment position is lowered by a dimension l1 toward the stem side (not shown) than the conventional cathode support member 6. A cathode support member 6a is fixed by welding.
That is, the mounting position for fixing the cathode support member 6 to the cathode eyelet support member 5 is welded and fixed at a distance l1 from the first grid 7 compared to the conventional case.
このような構成によば、従来の陰極アイレツト
支持部材５の熱的変形方向（矢印Ｃ方向）に対し
て寸法l1のみ取付位置を下げた陰極アイレツト支
持部材５はその熱的変形方向（矢印C1方向）が
大きくなり、したがつて、陰極アイレツト支持部
材５は図示しない第１格子７方向に熱的変形方向
およびその変形量を大きくすることができる。し
たがつて、図示しない第１格子７、第２格子８の
熱変形に対応して陰極アイレツト支持部材５の熱
変形量を任意に可変することができる。 According to such a configuration, the cathode eyelet support member 5 whose mounting position is lowered by a dimension l 1 with respect to the thermal deformation direction (arrow C direction) of the conventional cathode eyelet support member 5 is lowered in the thermal deformation direction (arrow C direction). Therefore, the cathode eyelet support member 5 can increase the direction of thermal deformation and the amount of deformation thereof in the direction of the first lattice 7 (not shown ) . Therefore, the amount of thermal deformation of the cathode eyelet support member 5 can be arbitrarily varied in accordance with the thermal deformation of the first grating 7 and the second grating 8 (not shown).
第２図は本発明による電子銃構体、特に陰極構
体部分の他の実施例を示す要部側面図である。同
図においては、陰極支持部材６ｂを陰極アイレツ
ト支持部材５へ固定する取付位置を従来よりl1寸
法だけ図示しない第１格子７側に近接して溶接固
定したものである。 FIG. 2 is a side view of essential parts showing another embodiment of the electron gun assembly, particularly the cathode assembly portion, according to the present invention. In the figure, the attachment position for fixing the cathode support member 6b to the cathode eyelet support member 5 is welded and fixed closer to the first grid 7 side (not shown) by l1 dimension than before.
このような構成によれば、従来の陰極アイレツ
ト支持部材５の熱的変形方向（矢印Ｃ方向）に対
して寸法l1のみ取付位置を上げた陰極アイレツト
支持部材５は、その熱的変形方向（矢印C2方向）
が小さくなり、したがつて、陰極アイレツト支持
部材５は図示しない第１格子７方向に熱的変形方
向およびその変形量を小さくすることができる。
したがつて、図示しない第１格子７、第２格子８
の熱変形に対応してその熱変形量を任意に可変す
ることができる。 According to such a configuration, the cathode eyelet support member 5 whose mounting position is raised by the dimension l1 with respect to the thermal deformation direction (direction of arrow C) of the conventional cathode eyelet support member 5 can be moved in the thermal deformation direction (arrow C direction). arrow C 2 directions)
Therefore, the direction and amount of thermal deformation of the cathode eyelet support member 5 can be reduced in the direction of the first grating 7 (not shown).
Therefore, the first grating 7 and the second grating 8 (not shown)
The amount of thermal deformation can be arbitrarily varied in accordance with the thermal deformation of.
換言すれば、中央陰極支持部材と両外側陰極支
持部材とを変えることにより各陰極３と第１格子
７間の間隔変化を制御でき、中央および両外側陰
極電流IKを任意に補正することができる。また、
この場合、陰極支持部材６ａ，６ｂの取り付け位
置および形状の変形量は、使用する電子銃構体の
構造から得られるIK曲線から任意に選定すれば良
い。 In other words, by changing the central cathode support member and both outer cathode support members, the change in the distance between each cathode 3 and the first grid 7 can be controlled, and the center and both outer cathode currents I K can be arbitrarily corrected. can. Also,
In this case, the mounting positions and the amount of deformation of the cathode support members 6a, 6b may be arbitrarily selected from the IK curve obtained from the structure of the electron gun assembly used.
第３図は本発明による電子銃構体、特に陰極支
持部材を使用したときのIK曲線を示す特性図であ
る。この場合、両外側陰極支持部材を従来型と
し、中央陰極支持部材の形状をl1＝−0.5mmとした
ときのIK曲線であり、特性Ｉは中央陰極電流を示
し、特性は外側陰極電流を示したものである。
この図からも明らかなように、両外側陰極支持部
材を中央陰極支持部材より第１格子側へ取り付け
ることにより、ヒータに通電して約７分後に陰極
電流が互いにほぼ等しく一致させることができ
た。 FIG. 3 is a characteristic diagram showing an I K curve when using the electron gun assembly according to the present invention, particularly the cathode support member. In this case, the I K curve is obtained when both outer cathode support members are conventional types and the shape of the center cathode support member is l 1 = -0.5 mm, where characteristic I indicates the center cathode current, and characteristic I indicates the outer cathode current. This is what is shown.
As is clear from this figure, by attaching both outer cathode support members closer to the first grid than the center cathode support member, the cathode currents could be made almost equal to each other approximately 7 minutes after the heater was energized. .
第４図は本発明による電子銃構体のさらに他の
実施例を示す要部断面図であり、前述と異なる点
は、陰極アイレツト４の外周側に前述の陰極アイ
レツト支持部材５を配設しないタイプのもので陰
極アイレツト４の外周面に直接的に陰極支持部材
１０を支持固定させたものである。この場合、こ
の陰極支持部材１０は、第５図ａ，ｂ，ｃに示す
ように高さh1，h2，h3がそれぞれ異なる形状の陰
極支持部材１０ａ，１０ｂ，１０ｃを選択的に組
合せ、絶縁ガラス保持部への取付高さを中央陰極
と両外側陰極とでそれぞれ異ならしめることによ
つて前記変形方向および熱変形量を可変すること
ができ、前述と同様の効果が得られる。また、上
記陰極支持部材１０ａ，１０ｂ，１０ｃを陰極ア
イレツト４に取付ける高さを中央陰極と両外側陰
極とで異ならしめることによつても前述と同様の
効果が得られる。 FIG. 4 is a sectional view of a main part showing still another embodiment of the electron gun assembly according to the present invention, and the difference from the above is that the above-mentioned cathode eyelet support member 5 is not disposed on the outer circumferential side of the cathode eyelet 4. A cathode support member 10 is directly supported and fixed on the outer peripheral surface of the cathode eyelet 4. In this case, the cathode support member 10 is formed by selectively combining cathode support members 10a, 10b, and 10c having different heights h1 , h2 , and h3 , respectively, as shown in FIGS. 5a, b, and c. By making the mounting heights of the central cathode and both outer cathodes different from each other to the insulating glass holding portion, the direction of deformation and the amount of thermal deformation can be varied, and the same effects as described above can be obtained. Furthermore, the same effect as described above can be obtained by making the heights at which the cathode support members 10a, 10b, and 10c are attached to the cathode eyelet 4 different between the central cathode and both outer cathodes.
以上説明したように本発明による電子銃構体に
よれば、各陰極の陰極電流IKの一致時間を大幅に
短縮させることができるとともに、IKの同等性を
容易に得ることができる極めて優れた効果が得ら
れる。
As explained above, according to the electron gun assembly according to the present invention, it is possible to significantly shorten the matching time of the cathode currents I K of each cathode, and it is also possible to easily obtain equality of I K. Effects can be obtained.
第１図および第２図は本発明による電子銃構体
の実施例を示す要部断面図、第３図は本発明によ
る電子銃構体のIK曲線を示す特性図、第４図は本
発明による電子銃構体の他の実施例を示す要部側
面図、第５図ａ，ｂ，ｃは本発明による電子銃構
体に係る陰極支持部材の例を示す要部平面図、第
６図ａ，ｂは従来の電子銃構体の一例を示す要部
断面図、第７図は従来の電子銃構体特に陰極構体
を示す要部拡大断面図、第８図は上記陰極構体各
部品の伸びの経時変化を示す特性図、第９図は従
来の電子銃構体のIK曲線を示す特性図である。
１……電子銃構体、２（R.G.B.）……ヒータ、
３（R.G.B.）……陰極、４（R.G.B.）……陰極
アイレツト、５（R.G.B.）……陰極アイレツト
支持部材、６（R.G.B.），６ａ，６ｂ……陰極支
持部材、７……第１格子、８……第２格子、９…
…絶縁ガラス、１０，１０ａ，１０ｂ，１０ｃ…
…陰極支持部材。
1 and 2 are cross-sectional views of essential parts showing an embodiment of the electron gun structure according to the present invention, FIG. 3 is a characteristic diagram showing the IK curve of the electron gun structure according to the present invention, and FIG. 4 is a diagram showing the IK curve of the electron gun structure according to the present invention. FIGS. 5a, b, c are side views of main parts showing other embodiments of the electron gun assembly; FIGS. 7 is an enlarged sectional view of essential parts showing an example of a conventional electron gun assembly, FIG. 7 is an enlarged sectional view of essential parts showing a conventional electron gun assembly, particularly the cathode assembly, and FIG. 8 shows changes over time in elongation of each component of the cathode assembly. FIG. 9 is a characteristic diagram showing an I K curve of a conventional electron gun assembly. 1... Electron gun structure, 2 (RGB)... Heater,
3 (RGB)... Cathode, 4 (RGB)... Cathode eyelet, 5 (RGB)... Cathode eyelet support member, 6 (RGB), 6a, 6b... Cathode support member, 7... First grid, 8 ...Second grid, 9...
...Insulating glass, 10, 10a, 10b, 10c...
...Cathode support member.
Claims (1)
プを有する筒状の陰極と、前記陰極を下端で保持
する陰極アイレツトと、前記陰極アイレツトを上
部で保持固定するカツプ状の陰極アイレツト支持
部材と、前記陰極アイレツト支持部材に固定させ
かつその端部を複数本の絶縁ガラスに保持固定さ
せた陰極支持部材とを備えたインライン形電子銃
構体において、前記陰極支持部材と前記陰極アイ
レツト支持部材との電子銃軸方向取付高さが中央
陰極と両外側陰極で異なり、前記両外側陰極支持
部材を前記中央陰極支持部材より制御格子側へ配
置することを特徴とする電子銃構体。 ２ 各々ヒータを収納させかつ上部に帽状キヤツ
プを有する筒状の陰極と、前記陰極を下端で保持
する陰極アイレツトと、前記陰極アイレツトに直
接的に支持固定させかつその端部を複数本の絶縁
ガラスに保持固定させた陰極支持部材とを備えた
インライン形電子銃構体において、前記陰極支持
部材の電子銃軸方向取付高さが中央陰極と両外側
陰極で異なり、前記両外側陰極支持部材を前記中
央陰極支持部材より制御格子側へ配置することを
特徴とする電子銃構体。[Scope of Claims] 1. A cylindrical cathode that accommodates a heater and has a cap on the top, a cathode eyelet that holds the cathode at its lower end, and a cup-shaped cathode that holds and fixes the cathode eyelet at its top. In an in-line electron gun assembly comprising an eyelet support member and a cathode support member fixed to the cathode eyelet support member and whose ends are held and fixed to a plurality of insulating glasses, the cathode support member and the cathode eyelet are fixed to the cathode support member. An electron gun assembly characterized in that a central cathode and both outer cathodes have different mounting heights with respect to a support member in the electron gun axial direction, and the both outer cathode support members are arranged closer to the control grid than the center cathode support member. 2. A cylindrical cathode that each houses a heater and has a cap on the top, a cathode eyelet that holds the cathode at its lower end, and a plurality of insulated cathodes that are directly supported and fixed to the cathode eyelet and whose ends are In an in-line electron gun assembly including a cathode support member held and fixed to glass, the installation height of the cathode support member in the electron gun axial direction is different between the central cathode and both outer cathodes, and the both outer cathode support members are An electron gun assembly characterized in that it is arranged closer to the control grid than the central cathode support member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61225912A JPS6264023A (en) | 1986-09-26 | 1986-09-26 | Electron gun structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61225912A JPS6264023A (en) | 1986-09-26 | 1986-09-26 | Electron gun structure |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6882578A Division JPS54160160A (en) | 1978-06-09 | 1978-06-09 | Electron gun assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6264023A JPS6264023A (en) | 1987-03-20 |
| JPH022257B2 true JPH022257B2 (en) | 1990-01-17 |
Family
ID=16836833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61225912A Granted JPS6264023A (en) | 1986-09-26 | 1986-09-26 | Electron gun structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6264023A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0438855U (en) * | 1990-07-30 | 1992-04-02 |
-
1986
- 1986-09-26 JP JP61225912A patent/JPS6264023A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0438855U (en) * | 1990-07-30 | 1992-04-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6264023A (en) | 1987-03-20 |
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