JPS5795044A - Electron gun structure - Google Patents
Electron gun structureInfo
- Publication number
- JPS5795044A JPS5795044A JP16956780A JP16956780A JPS5795044A JP S5795044 A JPS5795044 A JP S5795044A JP 16956780 A JP16956780 A JP 16956780A JP 16956780 A JP16956780 A JP 16956780A JP S5795044 A JPS5795044 A JP S5795044A
- Authority
- JP
- Japan
- Prior art keywords
- cup
- top surface
- major axis
- control electrode
- sides
- 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 relieve thermal deformation of a control elecdrode in the specific direction and improve its electric characteristic, by providing slits, crossing at a right angle with the direction of the major axis, in both ends of the major axis in the top surface of a cup of the control electrode. CONSTITUTION:Three electron beam passing holes 4, 5, 6 are formed in the top surface of cup of a control electrode 7, while simultaneously slits 16, 17 crossing at a right angle with the direction of the major axis of top surface of cup are formed in both ends of the major axis. Further, reinforcing protrusive banks 18, 19 are provided in both sides of the top surface of cup parallelly to the electron beam passing holes 4, 5, 6. In this way, the same level of restiction an edge of the cup can be obtained between the central part and both sides of the top surface of the cup then expansion of the top surface of the cup of the control electrode caused by the heating of a cathode can be equalized in its central part and the both sides, and an electric characteristic of the control electrode can be also improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16956780A JPS5795044A (en) | 1980-12-03 | 1980-12-03 | Electron gun structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16956780A JPS5795044A (en) | 1980-12-03 | 1980-12-03 | Electron gun structure |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5795044A true JPS5795044A (en) | 1982-06-12 |
Family
ID=15888855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16956780A Pending JPS5795044A (en) | 1980-12-03 | 1980-12-03 | Electron gun structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5795044A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0380951U (en) * | 1989-12-08 | 1991-08-19 | ||
US5980350A (en) * | 1996-03-05 | 1999-11-09 | Sony Corporation | Beam control electrode, electron gun provided with the beam control electrode, cathode-ray tube provided with the electron gun, and method of fabricating the beam control electrode |
-
1980
- 1980-12-03 JP JP16956780A patent/JPS5795044A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0380951U (en) * | 1989-12-08 | 1991-08-19 | ||
US5980350A (en) * | 1996-03-05 | 1999-11-09 | Sony Corporation | Beam control electrode, electron gun provided with the beam control electrode, cathode-ray tube provided with the electron gun, and method of fabricating the beam control electrode |
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