JPS5772247A - Electron gun for color picture tube - Google Patents
Electron gun for color picture tubeInfo
- Publication number
- JPS5772247A JPS5772247A JP14685780A JP14685780A JPS5772247A JP S5772247 A JPS5772247 A JP S5772247A JP 14685780 A JP14685780 A JP 14685780A JP 14685780 A JP14685780 A JP 14685780A JP S5772247 A JPS5772247 A JP S5772247A
- Authority
- JP
- Japan
- Prior art keywords
- porous plate
- electron beam
- beam passing
- shaped member
- passing hole
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
- H01J29/503—Three or more guns, the axes of which lay in a common plane
Abstract
PURPOSE:To obtain a large diameter electron lens by constituting a primary lens forming electrode in which porous plate-shaped member with the electron beam passing hole sections consisting of communicated and closed holes are fixed to the opening sections of a bottomed cylindrical member with the electron beam passing hole perforated at the bottom. CONSTITUTION:An electrode 54 forming a primary lens consists of a bottomed cylindrical member 641 and a porous plate-shaped member 642. Three electron beam passing hole sections 72, 73, and 74 are perforated at the bottom 71 of the bottomed cylindrical member 641, and a flange section 75 is formed at the opening section which is the end of a side wall section 76. Besides, three closed holes 82, 83, and 84 are perforated on the second grid side of the porous plate-shaped member 642 through bridge sections 87 and 88. On the other hand, a communicated hole which is connected to these three closed holes is formed on the fourth grid side and is used as an electron beam passing hole section. Moreover, the porous plate-shaped member 642 is fixed to the flange section 75. As a result, a large diameter primary electron lens can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14685780A JPS5772247A (en) | 1980-10-22 | 1980-10-22 | Electron gun for color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14685780A JPS5772247A (en) | 1980-10-22 | 1980-10-22 | Electron gun for color picture tube |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9063083A Division JPS59834A (en) | 1983-05-25 | 1983-05-25 | Electron gun for color picture tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5772247A true JPS5772247A (en) | 1982-05-06 |
Family
ID=15417121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14685780A Pending JPS5772247A (en) | 1980-10-22 | 1980-10-22 | Electron gun for color picture tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5772247A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59834A (en) * | 1983-05-25 | 1984-01-06 | Toshiba Corp | Electron gun for color picture tube |
| JPH0750138A (en) * | 1994-05-09 | 1995-02-21 | Hitachi Ltd | Color picture tube |
-
1980
- 1980-10-22 JP JP14685780A patent/JPS5772247A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59834A (en) * | 1983-05-25 | 1984-01-06 | Toshiba Corp | Electron gun for color picture tube |
| JPH0416893B2 (en) * | 1983-05-25 | 1992-03-25 | Tokyo Shibaura Electric Co | |
| JPH0750138A (en) * | 1994-05-09 | 1995-02-21 | Hitachi Ltd | Color picture tube |
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