JPS5652849A - Electron gun structure - Google Patents
Electron gun structureInfo
- Publication number
- JPS5652849A JPS5652849A JP12689579A JP12689579A JPS5652849A JP S5652849 A JPS5652849 A JP S5652849A JP 12689579 A JP12689579 A JP 12689579A JP 12689579 A JP12689579 A JP 12689579A JP S5652849 A JPS5652849 A JP S5652849A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- electrodes
- insulator
- electrode
- supporting structure
- 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
- H01J29/484—Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission
Abstract
PURPOSE:To prevent the superficial discharge by constituting an electrode supporting structure with resistors and insulators arranged in longitudinal direction, then projecting converging electrodes from the resistor while cathodes, control electrodes and acceleration electrodes from the insulator. CONSTITUTION:An electrode supporting structure 22 is comprised of a resistor 2a and an insulator 2c then insulative material layers 2b1-2b2 are coated on the outer circumference of the resistor 2a. Cathodes 3, 4, 5, control electrode 6 and an acceleration electrode 7 are projected from the insulator 2c, while focusing electrodes or the third, fourth, fifth and sixth grids 8, 9, 10, 11 are projected from the resistor 2a. Then 25kV and 500V are applied through a spring 15 and a stem lead 18. Consequently 7kV is applied on the third and fifth grids to prevent the discharge occurring on the surface of the supporting structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12689579A JPS5652849A (en) | 1979-10-03 | 1979-10-03 | Electron gun structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12689579A JPS5652849A (en) | 1979-10-03 | 1979-10-03 | Electron gun structure |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5652849A true JPS5652849A (en) | 1981-05-12 |
Family
ID=14946522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12689579A Pending JPS5652849A (en) | 1979-10-03 | 1979-10-03 | Electron gun structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5652849A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5965460U (en) * | 1982-10-26 | 1984-05-01 | 株式会社東芝 | Picture tube electron gun |
-
1979
- 1979-10-03 JP JP12689579A patent/JPS5652849A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5965460U (en) * | 1982-10-26 | 1984-05-01 | 株式会社東芝 | Picture tube electron gun |
JPH0511637Y2 (en) * | 1982-10-26 | 1993-03-23 |
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