JPS55166850A - Focus magnet - Google Patents

Focus magnet

Info

Publication number
JPS55166850A
JPS55166850A JP7526579A JP7526579A JPS55166850A JP S55166850 A JPS55166850 A JP S55166850A JP 7526579 A JP7526579 A JP 7526579A JP 7526579 A JP7526579 A JP 7526579A JP S55166850 A JPS55166850 A JP S55166850A
Authority
JP
Japan
Prior art keywords
ring
shaped permanent
poles
axial direction
permanent magnet
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
JP7526579A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0138352B2 (en:Method
Inventor
Teruo Umehara
Norio Matsumoto
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP7526579A priority Critical patent/JPS55166850A/ja
Publication of JPS55166850A publication Critical patent/JPS55166850A/ja
Publication of JPH0138352B2 publication Critical patent/JPH0138352B2/ja
Granted legal-status Critical Current

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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
JP7526579A 1979-06-15 1979-06-15 Focus magnet Granted JPS55166850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7526579A JPS55166850A (en) 1979-06-15 1979-06-15 Focus magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7526579A JPS55166850A (en) 1979-06-15 1979-06-15 Focus magnet

Publications (2)

Publication Number Publication Date
JPS55166850A true JPS55166850A (en) 1980-12-26
JPH0138352B2 JPH0138352B2 (en:Method) 1989-08-14

Family

ID=13571211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7526579A Granted JPS55166850A (en) 1979-06-15 1979-06-15 Focus magnet

Country Status (1)

Country Link
JP (1) JPS55166850A (en:Method)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494574A (en:Method) * 1972-04-25 1974-01-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494574A (en:Method) * 1972-04-25 1974-01-16

Also Published As

Publication number Publication date
JPH0138352B2 (en:Method) 1989-08-14

Similar Documents

Publication Publication Date Title
GB504802A (en) Improvements in or relating to permanent magnet devices for producing axially symmetrical magnetic fields
JPS57169212A (en) Vibration suppressing device
GB810267A (en) Focusing magnet for long electron beams
MY8500717A (en) Deflection yoke with permanent magnet raster correction
GB761814A (en) Beam conveyance arrangement for a plurality of electron beams in a tri-colour kinescope
JPS57128909A (en) Manufacture of permanent magnet having a plurality of radial magnetic dipoles
JPS55166850A (en) Focus magnet
JPS5535449A (en) Electromagnetic focusing type cathode ray tube
GB739068A (en) Improvements in or relating to cathode ray tube arrangements
JPS5696447A (en) Electron lens
JPS55143761A (en) Focus magnet
GB1355252A (en) Electron lenses of the magnetic field type
GB792020A (en) Improvements in or relating to the magnetic focusing of electron beams
JPS567593A (en) Magnetic circuit for flat diaphragm speaker
JPS55157844A (en) Focusing magnet
JPS55121257A (en) Electron lens
JPS55138986A (en) Convergence device
JPS56102048A (en) Electromagnetic focusing color picture tube
ES463367A1 (es) Un dispositivo perfeccionado para la desviacion de un haz deelectrones en un tubo electronico, particularmente un tubo captador de imagenes.
JPS5228220A (en) Deflection yoke
JPS5767272A (en) Electron lens
JPS56128552A (en) Deflecting yoke
JPS55157845A (en) Focusing magnet
JPS5593641A (en) Electromagnetic focussing cathode ray tube
Gerbert et al. Quadrupole Lens with Poles of Implicit Form based on Permanent Magnets