JPH0138352B2 - - Google Patents

Info

Publication number
JPH0138352B2
JPH0138352B2 JP54075265A JP7526579A JPH0138352B2 JP H0138352 B2 JPH0138352 B2 JP H0138352B2 JP 54075265 A JP54075265 A JP 54075265A JP 7526579 A JP7526579 A JP 7526579A JP H0138352 B2 JPH0138352 B2 JP H0138352B2
Authority
JP
Japan
Prior art keywords
permanent magnet
magnetic field
ring
magnet
shaped permanent
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.)
Expired
Application number
JP54075265A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55166850A (en
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 JPS55166850A (en) 1980-12-26
JPH0138352B2 true JPH0138352B2 (xx) 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 (xx)

Citations (1)

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

Also Published As

Publication number Publication date
JPS55166850A (en) 1980-12-26

Similar Documents

Publication Publication Date Title
JP3207196B2 (ja) 高解像度荷電粒子線装置用の補正装置
JPH0138352B2 (xx)
JPS6256623B2 (xx)
JP3490469B2 (ja) 電子ビーム集束磁界発生装置
JPH021434B2 (xx)
US2569327A (en) Electron beam bender
JPH0138350B2 (xx)
JPH0622102B2 (ja) 陰極線管
JPS6059699B2 (ja) 電磁集束型陰極線管
JPH0474822B2 (xx)
JPH0138351B2 (xx)
JPS59844Y2 (ja) 陰極線管表示装置の水平直線性改善リアクトル
JPS62290048A (ja) フオ−カスマグネツト
JPS6161218B2 (xx)
JP2569131B2 (ja) 陰極線管の電磁集束装置
JPH0215982B2 (xx)
JPH02204946A (ja) ビデオプロジェクタ用陰極線管
JP3490896B2 (ja) 陰極線管
JPH0560212B2 (xx)
JPS6310605Y2 (xx)
US2980814A (en) Combined magnetic shielding and beam centering assembly for cathode-ray tubes or the like
JPH07118281B2 (ja) フォーカスマグネット
JPS6351032A (ja) 陰極線管
JPS6310862B2 (xx)
JPH0128459B2 (xx)