JPS55105935A - Color picture tube device - Google Patents
Color picture tube deviceInfo
- Publication number
- JPS55105935A JPS55105935A JP1219579A JP1219579A JPS55105935A JP S55105935 A JPS55105935 A JP S55105935A JP 1219579 A JP1219579 A JP 1219579A JP 1219579 A JP1219579 A JP 1219579A JP S55105935 A JPS55105935 A JP S55105935A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- neck
- permanent magnet
- shaped
- poles
- 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
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
- H01J29/702—Convergence correction arrangements therefor
- H01J29/703—Static convergence systems
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
PURPOSE:To facilitate an easy color adjustment, by arranging a ring-shaped permanent magnet, which is rotatable outside the neck, at a face-to-face position with a ring-shaped magnetic unit inside the neck. CONSTITUTION:Facing a ring-shaped magnetic unit 12 disposed within a neck 5, is provided on the outer wall of the neck 5 a rotatable ring-shaped permanent magnet 22 having at least a set of four magnetic poles. In such a arrangement, when magnetizing the ring-shaped magnetic unit 12 within the neck 5 in such a manner as to generate a plurality of magnetic poles, a magnetization at about six poles is able to shift electron beam guns 15R, 15B in such a fashion as to meet the purpose in the relation to the external four-poled ring-shaped permanent magnet. Without the provision of such an external four-poled ring-shaped permanent magnet, it is normally to magnetize at 12 poles for the same purpose. Thus, a color displacement can be easily corrected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1219579A JPS55105935A (en) | 1979-02-07 | 1979-02-07 | Color picture tube device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1219579A JPS55105935A (en) | 1979-02-07 | 1979-02-07 | Color picture tube device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55105935A true JPS55105935A (en) | 1980-08-14 |
Family
ID=11798615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1219579A Pending JPS55105935A (en) | 1979-02-07 | 1979-02-07 | Color picture tube device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55105935A (en) |
-
1979
- 1979-02-07 JP JP1219579A patent/JPS55105935A/en active Pending
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