JPS5479556A - Electron gun for chthode-ray tube - Google Patents
Electron gun for chthode-ray tubeInfo
- Publication number
- JPS5479556A JPS5479556A JP14677277A JP14677277A JPS5479556A JP S5479556 A JPS5479556 A JP S5479556A JP 14677277 A JP14677277 A JP 14677277A JP 14677277 A JP14677277 A JP 14677277A JP S5479556 A JPS5479556 A JP S5479556A
- Authority
- JP
- Japan
- Prior art keywords
- grid
- cathode
- forming
- chthode
- ray tube
- 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
Abstract
PURPOSE: To obtain a high-brightness and high-distinction display picture with the constitution simplified by eliminating an aperture of the 3rd grid and by forming the 3rd grid of a cylinder larger in diameter than that of the 2nd grid.
CONSTITUTION: An electron flow emitted from cathode 11 is focused by the cathode lens formed of cathode 11, and the 1at and 2nd grinds 12 and 13, thereby forming crossover X. After forming this crossover X, the electron flow diverges and strikes the main lens, formed of the 3rd grid 14 and 4th grid 15, by way of the pre-focus lens of the 2ns grid 13 and 3rd grid 14, so that it will be irradiation-projected upon the face plate through tight focusing of the main lens. Grid 14 has no aperture and the caliber of the pre-focus lens formed between girds 14 and 13 is large.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14677277A JPS5479556A (en) | 1977-12-07 | 1977-12-07 | Electron gun for chthode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14677277A JPS5479556A (en) | 1977-12-07 | 1977-12-07 | Electron gun for chthode-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5479556A true JPS5479556A (en) | 1979-06-25 |
Family
ID=15415188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14677277A Pending JPS5479556A (en) | 1977-12-07 | 1977-12-07 | Electron gun for chthode-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5479556A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100418934B1 (en) * | 2002-02-28 | 2004-02-14 | 엘지.필립스디스플레이(주) | Gun for Color CRT |
-
1977
- 1977-12-07 JP JP14677277A patent/JPS5479556A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100418934B1 (en) * | 2002-02-28 | 2004-02-14 | 엘지.필립스디스플레이(주) | Gun for Color CRT |
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