JPS5740837A - Color picture receiving tube device - Google Patents
Color picture receiving tube deviceInfo
- Publication number
- JPS5740837A JPS5740837A JP11618580A JP11618580A JPS5740837A JP S5740837 A JPS5740837 A JP S5740837A JP 11618580 A JP11618580 A JP 11618580A JP 11618580 A JP11618580 A JP 11618580A JP S5740837 A JPS5740837 A JP S5740837A
- Authority
- JP
- Japan
- Prior art keywords
- beam passage
- pole pieces
- magnetic
- magnetic bodies
- 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.)
- 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
- H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
- H01J29/563—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses for controlling cross-section
Abstract
PURPOSE:To obtain a beam spot kept free of distortion all over the screen of a color cathod ray tube, in such a way that the first and the second magnetic bodies provided with the first - the fourth pole pieces as their teeth of combs are arranged on the tip of an electron gun being affected by an additional magnetic field and, further, three pairs of reverse four poles magnetic field generator are disposed on three electron beam passage respectively. CONSTITUTION:The first and the second magnetic bodies 8, 9 are arranged in a cuplike object 3, and those first and second magnetic bodies 8, 9 are formed into comblike objects provided with the first - the fourth magnetic poles 10-13 and magnetic poles 14-17 respectively as their teeth of combs. The first pole pieces 10, 14 of the first and the second magnetic bodies 8, 9 are facing each other, being located in the upper left position and the lower left position of the first side beam passage of the first beam hole 5 respectively, and the second pole pieces 11, 15 are crossing solidly between the first side beam passage and a central beam passage, not touching each other. Furthermore, the third pole pieces 12, 16 are crossing solidly between the central beam passage and the second beam passage, not touching each other. Thereby, a beam spot can be obtained free from any distortion and resolution can be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11618580A JPS5740837A (en) | 1980-08-22 | 1980-08-22 | Color picture receiving tube device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11618580A JPS5740837A (en) | 1980-08-22 | 1980-08-22 | Color picture receiving tube device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5740837A true JPS5740837A (en) | 1982-03-06 |
| JPS637422B2 JPS637422B2 (en) | 1988-02-16 |
Family
ID=14680911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11618580A Granted JPS5740837A (en) | 1980-08-22 | 1980-08-22 | Color picture receiving tube device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5740837A (en) |
-
1980
- 1980-08-22 JP JP11618580A patent/JPS5740837A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS637422B2 (en) | 1988-02-16 |
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