JPS5622031A - Electron gun structure - Google Patents
Electron gun structureInfo
- Publication number
- JPS5622031A JPS5622031A JP9611079A JP9611079A JPS5622031A JP S5622031 A JPS5622031 A JP S5622031A JP 9611079 A JP9611079 A JP 9611079A JP 9611079 A JP9611079 A JP 9611079A JP S5622031 A JPS5622031 A JP S5622031A
- Authority
- JP
- Japan
- Prior art keywords
- picture tube
- electrode element
- electrode
- convergence cup
- electron gun
- 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.)
- Granted
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
Abstract
PURPOSE:To control discharge current inside a picture tube and prevent damage by overcurrent to the picture tube by connecting the first electrode element through the second electrode element as the final accelerating electrode with a given resistance value to a convergence cup. CONSTITUTION:An electron gun structure 21 consists of plural electrodes composed of a cathode 23 provided with a heater 22, the first to third grids 24-26, and the fourth grid 27 as the final accelerating electrode, and a convergence cup 28 fixed to a supporter 29 of bead glass, etc., through contacted points 231-281. Also, a bulb spacer 30 is attached to the upper end of the convergence cup 28, and the fourth grid 27 consists of the first electrode element 27a of a conductive material and the second electrode element 27b of a resistance material with a given resistance value. Thus, discharge current from the discharge inside the color picture tube can be suppressed and therefore damage to the picture tube can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9611079A JPS5622031A (en) | 1979-07-30 | 1979-07-30 | Electron gun structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9611079A JPS5622031A (en) | 1979-07-30 | 1979-07-30 | Electron gun structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5622031A true JPS5622031A (en) | 1981-03-02 |
JPS6311742B2 JPS6311742B2 (en) | 1988-03-15 |
Family
ID=14156243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9611079A Granted JPS5622031A (en) | 1979-07-30 | 1979-07-30 | Electron gun structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5622031A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0239331U (en) * | 1988-08-31 | 1990-03-16 |
-
1979
- 1979-07-30 JP JP9611079A patent/JPS5622031A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6311742B2 (en) | 1988-03-15 |
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