JPS6274740U - - Google Patents
Info
- Publication number
- JPS6274740U JPS6274740U JP16771185U JP16771185U JPS6274740U JP S6274740 U JPS6274740 U JP S6274740U JP 16771185 U JP16771185 U JP 16771185U JP 16771185 U JP16771185 U JP 16771185U JP S6274740 U JPS6274740 U JP S6274740U
- Authority
- JP
- Japan
- Prior art keywords
- external magnetic
- cathode ray
- ray tube
- center
- magnetic shield
- 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 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
第１図はこの考案の一実施例を示す破断斜視図
、第２図はａ，ｂはその要部断面図、第３図は外
部磁気シールドの突出率と電子ビーム移動量の相
関関係を示す特性図、第４図は従来のカラー陰極
線管を示す破断斜視図、第５図は外部漂遊磁界の
電子ビームへの影響を説明するための図、第６図
はストライプ状螢光面の要部拡大図、第７図ａ，
ｂは従来のカラー陰極線管の要部断面図である。
１…陰極線管外囲器、１ａ…パネル部、１ｂ…
フアンネル部、１ｃ…ネツク部、７…外部磁気シ
ールド、７ｂ…ネツク部側端部、８…電子ビーム
、１１…外部磁界、１２…管軸、１４…電子銃、
１５…偏向中心、１６…パネル内面中心。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 cutaway perspective view showing an embodiment of this invention, Fig. 2 shows a and b sectional views of its main parts, and Fig. 3 shows the correlation between the protrusion ratio of the external magnetic shield and the amount of electron beam movement. Characteristics diagram, Figure 4 is a cutaway perspective view showing a conventional color cathode ray tube, Figure 5 is a diagram for explaining the influence of an external stray magnetic field on the electron beam, and Figure 6 is the main part of a striped fluorescent surface. Enlarged view, Figure 7a,
b is a sectional view of a main part of a conventional color cathode ray tube. 1...Cathode ray tube envelope, 1a...Panel section, 1b...
funnel part, 1c... neck part, 7... external magnetic shield, 7b... neck part side end part, 8... electron beam, 11... external magnetic field, 12... tube axis, 14... electron gun,
15... Center of deflection, 16... Center of inner surface of panel. In addition,
The same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
ツク部に内蔵された電子銃から発射された電子ビ
ームを外部磁界からシールドする外部磁気シール
ドを備えたカラー陰極線管において、上記外部磁
気シールドのネツク部側端部を延長し、外部磁気
シールドのネツク部側端部から管軸に垂直に下し
た点とパネル内面中心との距離を、パネル内面中
心から偏向中心までの距離の９０％以上に設定し
たことを特徴とするカラー陰極線管。 In a color cathode ray tube equipped with an external magnetic shield that is installed externally in the funnel part of the cathode ray tube envelope and shields the electron beam emitted from the electron gun built in the neck part from an external magnetic field, the neck of the external magnetic shield is Set the distance between the center of the inside surface of the panel and the point perpendicular to the tube axis from the end of the neck side of the external magnetic shield to be 90% or more of the distance from the center of the inside surface of the panel to the center of deflection. A color cathode ray tube characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16771185U JPS6274740U (en) | 1985-10-29 | 1985-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16771185U JPS6274740U (en) | 1985-10-29 | 1985-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6274740U true JPS6274740U (en) | 1987-05-13 |
Family
ID=31099895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16771185U Pending JPS6274740U (en) | 1985-10-29 | 1985-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6274740U (en) |
-
1985
- 1985-10-29 JP JP16771185U patent/JPS6274740U/ja active Pending