JPS57199151A - Color cathode-ray tube - Google Patents
Color cathode-ray tubeInfo
- Publication number
- JPS57199151A JPS57199151A JP8522681A JP8522681A JPS57199151A JP S57199151 A JPS57199151 A JP S57199151A JP 8522681 A JP8522681 A JP 8522681A JP 8522681 A JP8522681 A JP 8522681A JP S57199151 A JPS57199151 A JP S57199151A
- Authority
- JP
- Japan
- Prior art keywords
- electron beams
- tube
- orbits
- axis
- regulating
- 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
- H01J29/54—Arrangements for centring ray or beam
Abstract
PURPOSE:To enable the orbits of electron beams to be corrected at the central and the peripheral parts of a picture surface by regulating magnetic fields at the neck of a cathode-ray tube, while a deflection york remaining fixed, by providing electrostatic- magnetic-field generators, which are used for regulating the incidence angles of the electron beams upon the deflection york, at the neck of the tube. CONSTITUTION:The orbits of electron beams discharged from an electron gun 6 are at a certain angle relative to the axis of a cathode-ray tube 1 due to a manufacturing error. Therefore, as to the shifts of the electron beams seen from above, the traveling direction of the electron beams is adjusted to be parallel to the axis of the tube 1 by regulating the intensity and the direction of magnetic fields by use of a magnet 9a, and after that, the traveling direction of the electron beams is adjusted to correspond to the axis of the tube 1 in the same manner as above by use of the magnet 9a. Following that, as to the shifts of the electron beams seen from the side, the orbits of the electron beams are adjusted to correspond to the axis of the tube 1 in the same manner as above by means of magnets 9c and 9d. By the means mentioned above, the orbits of the electron beams are enabled to pass through the designed position of a deflection york 7 in a given direction, and the mutual distance between the electron beams at the periphery of a picture surface can be regulated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8522681A JPS57199151A (en) | 1981-06-01 | 1981-06-01 | Color cathode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8522681A JPS57199151A (en) | 1981-06-01 | 1981-06-01 | Color cathode-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57199151A true JPS57199151A (en) | 1982-12-07 |
Family
ID=13852644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8522681A Pending JPS57199151A (en) | 1981-06-01 | 1981-06-01 | Color cathode-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57199151A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53102630A (en) * | 1977-02-18 | 1978-09-07 | Denki Onkyo Co Ltd | Deflecting yoke for inline crt |
JPS5436130A (en) * | 1977-08-26 | 1979-03-16 | Hitachi Ltd | Electron beam correction unit |
-
1981
- 1981-06-01 JP JP8522681A patent/JPS57199151A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53102630A (en) * | 1977-02-18 | 1978-09-07 | Denki Onkyo Co Ltd | Deflecting yoke for inline crt |
JPS5436130A (en) * | 1977-08-26 | 1979-03-16 | Hitachi Ltd | Electron beam correction unit |
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