JPS57187842A - Electromagnetic focusing crt - Google Patents

Electromagnetic focusing crt

Info

Publication number
JPS57187842A
JPS57187842A JP7226581A JP7226581A JPS57187842A JP S57187842 A JPS57187842 A JP S57187842A JP 7226581 A JP7226581 A JP 7226581A JP 7226581 A JP7226581 A JP 7226581A JP S57187842 A JPS57187842 A JP S57187842A
Authority
JP
Japan
Prior art keywords
electron beam
holder
tube
focusing
screw
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
Application number
JP7226581A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0316731B2 (enrdf_load_stackoverflow
Inventor
Taketoshi Shimoma
Kumio Fukuda
Toshio Shimaougi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7226581A priority Critical patent/JPS57187842A/ja
Publication of JPS57187842A publication Critical patent/JPS57187842A/ja
Publication of JPH0316731B2 publication Critical patent/JPH0316731B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/58Arrangements for focusing or reflecting ray or beam
    • H01J29/64Magnetic lenses
    • H01J29/68Magnetic lenses using permanent magnets only
JP7226581A 1981-05-15 1981-05-15 Electromagnetic focusing crt Granted JPS57187842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7226581A JPS57187842A (en) 1981-05-15 1981-05-15 Electromagnetic focusing crt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7226581A JPS57187842A (en) 1981-05-15 1981-05-15 Electromagnetic focusing crt

Publications (2)

Publication Number Publication Date
JPS57187842A true JPS57187842A (en) 1982-11-18
JPH0316731B2 JPH0316731B2 (enrdf_load_stackoverflow) 1991-03-06

Family

ID=13484276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7226581A Granted JPS57187842A (en) 1981-05-15 1981-05-15 Electromagnetic focusing crt

Country Status (1)

Country Link
JP (1) JPS57187842A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0316731B2 (enrdf_load_stackoverflow) 1991-03-06

Similar Documents

Publication Publication Date Title
GB1461121A (en) Deflection coil system for colour television
JPS57187842A (en) Electromagnetic focusing crt
TW344840B (en) A color cathode ray tube
US3852693A (en) Magnetic convergence device for cathode ray tubes
US2569517A (en) Magnet for cathode-ray tube ion traps
JPS57138751A (en) Color picture tube
EP0283941A3 (en) Cathode ray tube having an electron gun constructed for readay refocusing of the electron beam
TW263593B (en) Cathode ray tube and resolution improving device thereof
GB892939A (en) Deflection yoke
JPS57126047A (en) Color cathode-ray tube
GB1463892A (en) Combination of a discharge tube and a permanent magnet
JPS5539121A (en) Electromagnetic focus cathode ray tube
JPS55138986A (en) Convergence device
JPS56120060A (en) Electromagnetic focusing cathode-ray tube
JPS57158932A (en) Cathode-ray tube
JPS6465751A (en) Cathode-ray tube
JPS57158930A (en) Cathode-ray tube
JPS56103853A (en) Beam index tube
JPS5782948A (en) Electromagnetic focusing type cathode ray tube
JPS5588250A (en) Electron beam convergence device
JPS6435829A (en) Traveling-wave tube
JPS5539123A (en) Electromagnetic focus cathode ray tube
JPS57132645A (en) Cathode-ray tube
JPS5632640A (en) Manufacture of cathode-ray tube
GB1131619A (en) Improvements in or relating to beam convergence devices for colour television tubes