JPS57138750A - Electron gun for cathode-ray tube - Google Patents
Electron gun for cathode-ray tubeInfo
- Publication number
- JPS57138750A JPS57138750A JP2427481A JP2427481A JPS57138750A JP S57138750 A JPS57138750 A JP S57138750A JP 2427481 A JP2427481 A JP 2427481A JP 2427481 A JP2427481 A JP 2427481A JP S57138750 A JPS57138750 A JP S57138750A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electron beam
- holes
- beam passing
- locate
- 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
- H01J29/485—Construction of the gun or of parts thereof
Abstract
PURPOSE:To improve assembly efficiency by setting reference holes for assembling sufficiently apart from electron beam passing holes at a part or the whole of an electrode of a electron gun, and inserting mandrels into the reference holes to locate an electrode. CONSTITUTION:Reference holes for assembly 4a, 4b are set in the top surface of an electrode 2 formed electron beam passing holes 3b, 3c, where gives practically no effect on an electron beam focusing electric field sufficiently apart from the electron beam passing holes. Those reference holes are set at a part or the whole of the electrode to be assembled. After mandrels are inserted into the reference holes 4a, 4b to locate the electrode, bead welding is conducted. Therefore, different from the ordinary process directly inserting mandrels into the electron beam passing holes to locate the electrode, this process prevents the occurrence of burrs in the circumference of the electron beam passing holes and can improve assembly efficiency.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2427481A JPS57138750A (en) | 1981-02-23 | 1981-02-23 | Electron gun for cathode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2427481A JPS57138750A (en) | 1981-02-23 | 1981-02-23 | Electron gun for cathode-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57138750A true JPS57138750A (en) | 1982-08-27 |
Family
ID=12133628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2427481A Pending JPS57138750A (en) | 1981-02-23 | 1981-02-23 | Electron gun for cathode-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57138750A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030018376A (en) * | 2001-08-28 | 2003-03-06 | 엘지.필립스디스플레이(주) | Electron gun of Cathode Ray Tube |
-
1981
- 1981-02-23 JP JP2427481A patent/JPS57138750A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030018376A (en) * | 2001-08-28 | 2003-03-06 | 엘지.필립스디스플레이(주) | Electron gun of Cathode Ray Tube |
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