JPH0348847U - - Google Patents

Info

Publication number
JPH0348847U
JPH0348847U JP10901589U JP10901589U JPH0348847U JP H0348847 U JPH0348847 U JP H0348847U JP 10901589 U JP10901589 U JP 10901589U JP 10901589 U JP10901589 U JP 10901589U JP H0348847 U JPH0348847 U JP H0348847U
Authority
JP
Japan
Prior art keywords
lens
coil
amplifier
reference voltage
comprised
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.)
Pending
Application number
JP10901589U
Other languages
English (en)
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 JP10901589U priority Critical patent/JPH0348847U/ja
Publication of JPH0348847U publication Critical patent/JPH0348847U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図、図2図は本案の一実施例であり、第1
図は電気的効果の説明図、第2図は電子顕微鏡お
よびレンズコイルの説明図、第3図は従来技術の
電気的説明図である。 2……制御素子、3……レンズ電流、4……レ
ンズコイル、5……基準電圧、6……増幅器。

Claims (1)

    【実用新案登録請求の範囲】
  1. 制御素子、レンズコイル、基準電圧、増幅器よ
    り成るレンズ電流制御方式において、レンズコイ
    ルをレンズ電流の検出抵抗としても兼用させるこ
    とを特徴とした電子顕微鏡等のレンズ電流制御方
    式。
JP10901589U 1989-09-20 1989-09-20 Pending JPH0348847U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10901589U JPH0348847U (ja) 1989-09-20 1989-09-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10901589U JPH0348847U (ja) 1989-09-20 1989-09-20

Publications (1)

Publication Number Publication Date
JPH0348847U true JPH0348847U (ja) 1991-05-10

Family

ID=31657619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10901589U Pending JPH0348847U (ja) 1989-09-20 1989-09-20

Country Status (1)

Country Link
JP (1) JPH0348847U (ja)

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