JPH0343245U - - Google Patents
Info
- Publication number
- JPH0343245U JPH0343245U JP10450989U JP10450989U JPH0343245U JP H0343245 U JPH0343245 U JP H0343245U JP 10450989 U JP10450989 U JP 10450989U JP 10450989 U JP10450989 U JP 10450989U JP H0343245 U JPH0343245 U JP H0343245U
- Authority
- JP
- Japan
- Prior art keywords
- panel
- funnel
- distal end
- electron beam
- attached
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010894 electron beam technology Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Description
第１図乃至第４図はこの考案の実施例の説明図
で、第１図はその一実施例であるカラー受像管の
構成を示す断面図、第２図はその磁気シールド体
の構造を示す断面図、第３図はその磁気シールド
体の構造を示す平面図、第４図は磁気シールド体
の張出し部の先端周縁部の折曲げ角度の説明図、
第５図は従来のカラー受像管の構成を示す断面図
、第６図はその従来のカラー受像管の磁気シール
ド体の構造を示す断面図、第７図ａおよびｂはそ
れぞれ水平方向磁界および垂直方向磁界に対する
従来の磁気シールド体の作用説明図、第８図は管
軸方向磁界に対する従来の磁気シールド体の作用
説明図、第９図は従来の磁気シールド体の張出し
部の先端周縁部から放出される磁界が電子ビーム
に及ぼす影響を説明するための図、第１０図は従
来の他の磁気シールド体の構造を示す断面図、第
１１図はマスクフレームにエレクトロンシールド
部を設けた従来のカラー受像管の要部構成を示す
断面図である。
１…パネル、２…フアンネル、３…蛍光体スク
リーン、４…シヤドウマスク、６…マスクフレー
ム、１０…電子銃、１６…マスクフレームの底面
部、３０…磁気シールド体、３１…張出し部、３
４…折曲げ部。
Figures 1 to 4 are explanatory diagrams of an embodiment of this invention, in which Figure 1 is a sectional view showing the configuration of a color picture tube that is one embodiment of the invention, and Figure 2 is a diagram showing the structure of its magnetic shield. A sectional view, FIG. 3 is a plan view showing the structure of the magnetic shield, and FIG. 4 is an explanatory diagram of the bending angle of the tip peripheral edge of the overhanging portion of the magnetic shield.
Fig. 5 is a sectional view showing the structure of a conventional color picture tube, Fig. 6 is a sectional view showing the structure of a magnetic shield of the conventional color picture tube, and Figs. Figure 8 is an explanatory diagram of the effect of a conventional magnetic shield on a directional magnetic field. Figure 8 is an explanatory diagram of the effect of a conventional magnetic shield on a magnetic field in the tube axis direction. Figure 9 is an explanatory diagram of the effect of a conventional magnetic shield on a directional magnetic field. Figure 10 is a cross-sectional view showing the structure of another conventional magnetic shield, and Figure 11 is a conventional collar in which an electron shield is provided on the mask frame. FIG. 2 is a cross-sectional view showing the configuration of main parts of a picture tube. DESCRIPTION OF SYMBOLS 1... Panel, 2... Funnel, 3... Phosphor screen, 4... Shadow mask, 6... Mask frame, 10... Electron gun, 16... Bottom part of mask frame, 30... Magnetic shield, 31... Projection part, 3
4...Bending part.
Claims (1)
、上記パネル内面に形成された蛍光体スクリーン
に対向して上記パネル内側にシヤドウマスクが装
着され、このシヤドウマスクの周辺部を支持する
断面Ｌ字形のマスクフレームの内側に張出した底
面部に上記フアンネルの内側に延在して電子銃か
ら放出される電子ビームに対する外部磁界の影響
を防止する磁気シールド体が設けられてなるカラ
ー受像管において、 上記磁気シールド体は上記マスクフレームの底
面部に取付けられる内側に張出した張出し部を有
し、この張出し部の先端周縁部にこの先端周縁部
近傍を通る上記電子ビームの軌道とほぼ平行にな
る折曲げ部が形成されていることを特徴とするカ
ラー受像管。[Claims for Utility Model Registration] It has an envelope consisting of a panel and a funnel, and a shadow mask is attached to the inside of the panel facing a phosphor screen formed on the inside of the panel, and the peripheral part of the shadow mask is supported. A color image receiver comprising a magnetic shielding body extending inside the funnel and preventing the influence of an external magnetic field on the electron beam emitted from the electron gun, on the bottom part extending inside the mask frame having an L-shaped cross section. In the tube, the magnetic shielding body has an inwardly protruding overhang that is attached to the bottom surface of the mask frame, and a distal end portion of the overhanging portion that is approximately parallel to the trajectory of the electron beam that passes near the distal end periphery. A color picture tube characterized in that a bent portion is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10450989U JPH0343245U (en) | 1989-09-06 | 1989-09-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10450989U JPH0343245U (en) | 1989-09-06 | 1989-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0343245U true JPH0343245U (en) | 1991-04-23 |
Family
ID=31653303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10450989U Pending JPH0343245U (en) | 1989-09-06 | 1989-09-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343245U (en) |
-
1989
- 1989-09-06 JP JP10450989U patent/JPH0343245U/ja active Pending
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