JPS5782943A - Electron gun for cathode ray tube - Google Patents
Electron gun for cathode ray tubeInfo
- Publication number
- JPS5782943A JPS5782943A JP15818080A JP15818080A JPS5782943A JP S5782943 A JPS5782943 A JP S5782943A JP 15818080 A JP15818080 A JP 15818080A JP 15818080 A JP15818080 A JP 15818080A JP S5782943 A JPS5782943 A JP S5782943A
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- electrode
- approximately
- range
- 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
- 230000004323 axial length Effects 0.000 abstract 2
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
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
- H01J29/58—Arrangements for focusing or reflecting ray or beam
- H01J29/62—Electrostatic lenses
- H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
- H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun
Abstract
PURPOSE:In a shadow-mask type color picture tube, to improve the tracking characteristic by connecting between second and fourth electrodes, between third, fifth and seventh electrodes and between sixth and eighth electrodes respectively while specifying the length of the electrode and the diameter of the open hole section. CONSTITUTION:An electron beam radiation source formed with a cathode 20, first electrode 21 and second electrode 22 and a main lens system formed with 3-8th electrodes 23-28 are provided in CRT. Approximately 150V is applied on the cathode 20 while OV is applied on the electrode 21 then electrodes 22, 24 are connected and approximately 600V is applied, thereafter electrodes 23, 25, 27 are connected and approximately 7KV is applied on the focus terminal 29 then electrodes 26, 28 are connected and approximately 25KV is applied. The axial length of the electrodes 24, 26 is in the range of 30-40% of the open section diameter of the electrodes 24, 26. The axial length of the electrode 26 is set in the range of 30-40% of the electrodes 25 or 27, while the open section diameter of the electrode 26 is set in the range of 100-120% of the open section diameter. Consequently the tracking characteristic can be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15818080A JPS5782943A (en) | 1980-11-12 | 1980-11-12 | Electron gun for cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15818080A JPS5782943A (en) | 1980-11-12 | 1980-11-12 | Electron gun for cathode ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5782943A true JPS5782943A (en) | 1982-05-24 |
Family
ID=15666011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15818080A Pending JPS5782943A (en) | 1980-11-12 | 1980-11-12 | Electron gun for cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5782943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04212242A (en) * | 1989-12-31 | 1992-08-03 | Samsung Electron Devices Co Ltd | Multiple focusing type electron gun for cathode-ray tube |
-
1980
- 1980-11-12 JP JP15818080A patent/JPS5782943A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04212242A (en) * | 1989-12-31 | 1992-08-03 | Samsung Electron Devices Co Ltd | Multiple focusing type electron gun for cathode-ray tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1522152A (en) | Electron gun for cathode ray tubes | |
| ATE79200T1 (en) | COLOR CRT WITH REDUCED DEFLECTION DEFOCUSING. | |
| KR880004539A (en) | Color display system and cathode ray tube | |
| GB1533092A (en) | Electronic tube | |
| EP0798759A3 (en) | Colour cathode-ray tube | |
| EP0805473A3 (en) | Color picture tube with reduced dynamic focus voltage | |
| JPS5782943A (en) | Electron gun for cathode ray tube | |
| JPS57163955A (en) | Mask focusing type color picture tube | |
| MY110338A (en) | Multi-focusing type electron gun for color cathode ray tubes | |
| GB1242881A (en) | Cathode ray tube | |
| JPS5472667A (en) | Electron gun for cathode ray tube | |
| JPS5489472A (en) | Electron gun for cathode-ray tube | |
| JPS54120581A (en) | Electron gun for color picture tube of in-line type | |
| JPS5613644A (en) | Color cathode-ray tube | |
| EP0247688A3 (en) | Cathode ray tube | |
| DE3166330D1 (en) | Method of fabricating an electron gun electrode member for a cathode-ray tube and cathode ray tube comprising an electron gun electrode member fabricated by this method | |
| GB1246198A (en) | Cathode ray tube | |
| DE3663425D1 (en) | Method for heating electron gun electrodes during manufacture | |
| JPS57165940A (en) | Cathode-ray tube | |
| JPS54137268A (en) | Cathode-ray tube | |
| JPS5798963A (en) | Electron gun for cathode ray tube | |
| JPS5333049A (en) | Electrode structure for cathode-ray tube electronic gun | |
| JPS553105A (en) | Electron gun | |
| KR0147545B1 (en) | Colored cathode ray tube | |
| JPS54108569A (en) | Electron gun for cathode-ray tube |