JPH0249054U - - Google Patents

Info

Publication number
JPH0249054U
JPH0249054U JP12796088U JP12796088U JPH0249054U JP H0249054 U JPH0249054 U JP H0249054U JP 12796088 U JP12796088 U JP 12796088U JP 12796088 U JP12796088 U JP 12796088U JP H0249054 U JPH0249054 U JP H0249054U
Authority
JP
Japan
Prior art keywords
magnet
ferromagnetic material
hollow
permanent magnets
shape
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
JP12796088U
Other languages
English (en)
Other versions
JPH0720832Y2 (ja
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 filed Critical
Priority to JP1988127960U priority Critical patent/JPH0720832Y2/ja
Publication of JPH0249054U publication Critical patent/JPH0249054U/ja
Application granted granted Critical
Publication of JPH0720832Y2 publication Critical patent/JPH0720832Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】
第１図および第２図は各々本考案の実施例を示
す要部正面図および要部縦断面図、第３図は従来
の例を示す要部縦断面図である。 １：永久磁石、２：ヨーク、２ａ：溝。

Claims (1)

    【実用新案登録請求の範囲】
  1. アルニコ磁石合金からなりかつ軸方向に着磁し
    て両端面に磁極を設け中空円筒形に形成してなる
    ２個の永久磁石を異極を対向させて配設し、強磁
    性材料により中空円板状に形成したヨークを介し
    て前記永久磁石を同軸上に連結し、一方の永久磁
    石の他の端面に強磁性材料により中空円板状に形
    成したヨークを固着すると共に、これらのヨーク
    に円周方向を分断するような溝を設け、他方の永
    久磁石の内側および端部外方に２個のコイルを同
    軸上に設けたことを特徴とするフオーカスマグネ
    ツト。
JP1988127960U 1988-09-29 1988-09-29 フォーカスマグネット Expired - Lifetime JPH0720832Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988127960U JPH0720832Y2 (ja) 1988-09-29 1988-09-29 フォーカスマグネット

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988127960U JPH0720832Y2 (ja) 1988-09-29 1988-09-29 フォーカスマグネット

Publications (2)

Publication Number Publication Date
JPH0249054U true JPH0249054U (ja) 1990-04-05
JPH0720832Y2 JPH0720832Y2 (ja) 1995-05-15

Family

ID=31380859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988127960U Expired - Lifetime JPH0720832Y2 (ja) 1988-09-29 1988-09-29 フォーカスマグネット

Country Status (1)

Country Link
JP (1) JPH0720832Y2 (ja)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199154A (en) * 1981-06-03 1982-12-07 Sony Corp Electromagnetic focusing device for cathode-ray tube
JPS62100673U (ja) * 1985-12-16 1987-06-26
JPS62290048A (ja) * 1986-05-01 1987-12-16 Hitachi Metals Ltd フオ−カスマグネツト

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199154A (en) * 1981-06-03 1982-12-07 Sony Corp Electromagnetic focusing device for cathode-ray tube
JPS62100673U (ja) * 1985-12-16 1987-06-26
JPS62290048A (ja) * 1986-05-01 1987-12-16 Hitachi Metals Ltd フオ−カスマグネツト

Also Published As

Publication number Publication date
JPH0720832Y2 (ja) 1995-05-15

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