JPS63179640U - - Google Patents
Info
- Publication number
- JPS63179640U JPS63179640U JP7206587U JP7206587U JPS63179640U JP S63179640 U JPS63179640 U JP S63179640U JP 7206587 U JP7206587 U JP 7206587U JP 7206587 U JP7206587 U JP 7206587U JP S63179640 U JPS63179640 U JP S63179640U
- Authority
- JP
- Japan
- Prior art keywords
- ray tube
- cathode ray
- color cathode
- magnetic shield
- internal 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
- 238000010894 electron beam technology Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Description
第１図はこの考案の一実施例によるカラー陰極
線管の内部磁気シールドを背面から見た斜視図、
第２図は第１図の−線に沿う断面図、第３図
は磁性片の斜視図、第４図および第５図はカラー
陰極線管と内部磁気シールドの磁束分布図、第６
図は従来のカラー陰極線管の要部を示す断面図、
第７図は従来の内部磁気シールドを背面から見た
斜視図、第８図および第９図は従来のカラー陰極
線管における電子ビームの動作を説明するための
断面図と正面図、第１０図は従来のカラー陰極線
管の磁束分布図である。
１……バルブ、１ａ……フエースパネル、２…
…マスクフレーム、３……内部磁気シールド、４
……シヤドウマスク、５……磁性片、５ａ……突
耳部。なお、図中同一符号は、同一または相当部
分を示す。
FIG. 1 is a perspective view of the internal magnetic shield of a color cathode ray tube according to an embodiment of the invention, viewed from the back;
Figure 2 is a sectional view taken along the - line in Figure 1, Figure 3 is a perspective view of the magnetic piece, Figures 4 and 5 are magnetic flux distribution diagrams of the color cathode ray tube and internal magnetic shield, and Figure 6 is a diagram of the magnetic flux distribution of the color cathode ray tube and internal magnetic shield.
The figure is a cross-sectional view showing the main parts of a conventional color cathode ray tube.
FIG. 7 is a perspective view of a conventional internal magnetic shield seen from the back, FIGS. 8 and 9 are cross-sectional views and front views for explaining the operation of the electron beam in a conventional color cathode ray tube, and FIG. FIG. 2 is a magnetic flux distribution diagram of a conventional color cathode ray tube. 1...Valve, 1a...Face panel, 2...
...Mask frame, 3...Internal magnetic shield, 4
...Shadow mask, 5...Magnetic piece, 5a...Ear portion. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
ースパネルに対向するマスクフレームに支持され
た内部磁気シールドの四隅部に、地磁気の磁界の
方向を変えて電子ビームのミス・ランデイングを
抑制するための磁性片を設けたことを特徴とする
カラー陰極線管の内部磁気シールド。 (2) 磁性片には、地磁気の磁界の方向を調整可
能に変える突耳部を一体に形成した実用新案登録
請求の範囲第１項記載のカラー陰極線管の内部磁
気シールド。 (3) 磁性片は、内部磁気シールドの開口四隅部
の内側に、スポツト溶接によりそれぞれ取付けた
実用新案登録請求の範囲第１項記載のカラー陰極
線管の内部磁気シールド。[Claims for Utility Model Registration] (1) In a color cathode ray tube, the direction of the earth's magnetic field is changed at the four corners of the internal magnetic shield supported by the mask frame facing the face panel of the bulb to prevent electron beam misses. An internal magnetic shield for a color cathode ray tube characterized by the provision of a magnetic piece for suppressing landing. (2) The internal magnetic shield for a color cathode ray tube according to claim 1, wherein the magnetic piece is integrally formed with a protrusion that adjustably changes the direction of the earth's magnetic field. (3) The internal magnetic shield of a color cathode ray tube according to claim 1, wherein the magnetic pieces are each attached to the inside of the four opening corners of the internal magnetic shield by spot welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7206587U JPS63179640U (en) | 1987-05-13 | 1987-05-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7206587U JPS63179640U (en) | 1987-05-13 | 1987-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63179640U true JPS63179640U (en) | 1988-11-21 |
Family
ID=30915187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7206587U Pending JPS63179640U (en) | 1987-05-13 | 1987-05-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63179640U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5569938A (en) * | 1978-11-21 | 1980-05-27 | Toshiba Corp | Color picture tube device |
-
1987
- 1987-05-13 JP JP7206587U patent/JPS63179640U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5569938A (en) * | 1978-11-21 | 1980-05-27 | Toshiba Corp | Color picture tube device |
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