JPS5318916A - Cathode-ray tube - Google Patents
Cathode-ray tubeInfo
- Publication number
- JPS5318916A JPS5318916A JP9278176A JP9278176A JPS5318916A JP S5318916 A JPS5318916 A JP S5318916A JP 9278176 A JP9278176 A JP 9278176A JP 9278176 A JP9278176 A JP 9278176A JP S5318916 A JPS5318916 A JP S5318916A
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- ray tube
- spot
- secure
- magnetic field
- 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
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
PURPOSE: To increase the picture quality by providing a 4-pole lens and increasing the focal distance in the vertical direction at the point when an electronic beam enters the deflection magnetic field in order to secure a small round beam spot with reduced spot distortion.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9278176A JPS5318916A (en) | 1976-08-05 | 1976-08-05 | Cathode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9278176A JPS5318916A (en) | 1976-08-05 | 1976-08-05 | Cathode-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5318916A true JPS5318916A (en) | 1978-02-21 |
Family
ID=14063948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9278176A Pending JPS5318916A (en) | 1976-08-05 | 1976-08-05 | Cathode-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5318916A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54134966A (en) * | 1978-04-12 | 1979-10-19 | Hitachi Ltd | Cathode-ray tube electron gun |
JPS5591539A (en) * | 1978-12-27 | 1980-07-11 | Philips Nv | Cathode ray tube |
JPS59101745A (en) * | 1982-12-02 | 1984-06-12 | Toshiba Corp | Color picture tube |
-
1976
- 1976-08-05 JP JP9278176A patent/JPS5318916A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54134966A (en) * | 1978-04-12 | 1979-10-19 | Hitachi Ltd | Cathode-ray tube electron gun |
JPS5591539A (en) * | 1978-12-27 | 1980-07-11 | Philips Nv | Cathode ray tube |
JPS6340349B2 (en) * | 1978-12-27 | 1988-08-10 | Fuiritsupusu Furuuiranpenfuaburiken Nv | |
JPS59101745A (en) * | 1982-12-02 | 1984-06-12 | Toshiba Corp | Color picture tube |
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