JPS5481769A - High-sensitivity cathode-ray tube - Google Patents
High-sensitivity cathode-ray tubeInfo
- Publication number
- JPS5481769A JPS5481769A JP14973077A JP14973077A JPS5481769A JP S5481769 A JPS5481769 A JP S5481769A JP 14973077 A JP14973077 A JP 14973077A JP 14973077 A JP14973077 A JP 14973077A JP S5481769 A JPS5481769 A JP S5481769A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- deflecting
- potential
- convex lens
- sensitivity
- 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
Abstract
PURPOSE: To improve deflection sensitivity by making the cylinder electrode at a deflecting-board side nearly equal to the potential at the deflection center and lower than that of dome meshes by forming a convex lens with the cylindrical electrode inserted between the 2nd deflecting board and the dome mesh electrode.
CONSTITUTION: Between horizontal deflecting board 7 and dome mesh electrode 8, cylindrical acceleration electrodes 13 and 14 are inserted, and operated while potentials V13 and V14 are set nearly to the deflecting center potential and the potential of electrode 8 respectively with V13 less than V14. In this constitution, the deterioration of pattern distortion as a CRT, deflection linearity and the evenness in the fluorescent-screen region of a spot due to the speherical aberration of the convex lens of electrodes 13 and 14 are corrected by forming the reverse spherical aberration by the shape of electrode 8 by the convex lens made of electrodes 8 nd 9. Further, the deflecting center potential can be lowered in comparison with a conventional method, so that the polarization sensitivity can be improved.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14973077A JPS6040661B2 (en) | 1977-12-13 | 1977-12-13 | High sensitivity cathode ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14973077A JPS6040661B2 (en) | 1977-12-13 | 1977-12-13 | High sensitivity cathode ray tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5481769A true JPS5481769A (en) | 1979-06-29 |
JPS6040661B2 JPS6040661B2 (en) | 1985-09-12 |
Family
ID=15481550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14973077A Expired JPS6040661B2 (en) | 1977-12-13 | 1977-12-13 | High sensitivity cathode ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6040661B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62219439A (en) * | 1986-03-10 | 1987-09-26 | テクトロニツクス・インコ−ポレイテツド | Deflecting expending electron lens apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0447320Y2 (en) * | 1988-07-30 | 1992-11-09 |
-
1977
- 1977-12-13 JP JP14973077A patent/JPS6040661B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62219439A (en) * | 1986-03-10 | 1987-09-26 | テクトロニツクス・インコ−ポレイテツド | Deflecting expending electron lens apparatus |
JPH0559535B2 (en) * | 1986-03-10 | 1993-08-31 | Tektronix Inc |
Also Published As
Publication number | Publication date |
---|---|
JPS6040661B2 (en) | 1985-09-12 |
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