JPH0138350B2 - - Google Patents

Info

Publication number
JPH0138350B2
JPH0138350B2 JP54065775A JP6577579A JPH0138350B2 JP H0138350 B2 JPH0138350 B2 JP H0138350B2 JP 54065775 A JP54065775 A JP 54065775A JP 6577579 A JP6577579 A JP 6577579A JP H0138350 B2 JPH0138350 B2 JP H0138350B2
Authority
JP
Japan
Prior art keywords
permanent magnet
magnetic field
ring
shaped 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.)
Expired
Application number
JP54065775A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55157844A (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 JP6577579A priority Critical patent/JPS55157844A/ja
Publication of JPS55157844A publication Critical patent/JPS55157844A/ja
Publication of JPH0138350B2 publication Critical patent/JPH0138350B2/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
    • H01J29/64—Magnetic lenses
    • H01J29/68—Magnetic lenses using permanent magnets only
JP6577579A 1979-05-28 1979-05-28 Focusing magnet Granted JPS55157844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6577579A JPS55157844A (en) 1979-05-28 1979-05-28 Focusing magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6577579A JPS55157844A (en) 1979-05-28 1979-05-28 Focusing magnet

Publications (2)

Publication Number Publication Date
JPS55157844A JPS55157844A (en) 1980-12-08
JPH0138350B2 true JPH0138350B2 (en]) 1989-08-14

Family

ID=13296736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6577579A Granted JPS55157844A (en) 1979-05-28 1979-05-28 Focusing magnet

Country Status (1)

Country Link
JP (1) JPS55157844A (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007189910A (ja) * 2006-01-17 2007-08-02 Shimizu Corp 緑化ユニット及び該緑化ユニットを備える緑化システム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5026274U (en]) * 1973-07-03 1975-03-26

Also Published As

Publication number Publication date
JPS55157844A (en) 1980-12-08

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