JPH0166745U - - Google Patents

Info

Publication number
JPH0166745U
JPH0166745U JP1987162429U JP16242987U JPH0166745U JP H0166745 U JPH0166745 U JP H0166745U JP 1987162429 U JP1987162429 U JP 1987162429U JP 16242987 U JP16242987 U JP 16242987U JP H0166745 U JPH0166745 U JP H0166745U
Authority
JP
Japan
Prior art keywords
movable aperture
aperture device
electron microscope
scanning electron
chamber
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
JP1987162429U
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 JP1987162429U priority Critical patent/JPH0166745U/ja
Publication of JPH0166745U publication Critical patent/JPH0166745U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は本案の一実施例の断面図である。 1……対物レンズ、2……試料室、3……試料
、4……試料ステージ、5……可動絞り装置、6
……バルブ、7……予備排気室、8……排管、9
……真空ゲージ、10……リーク弁、11……予
備排気バルブ、12……油回転ポンプ、13……
ガイド、14……ストツパ、15……真空パツキ
ン。

Claims (1)

    【実用新案登録請求の範囲】
  1. 走査形電子顕微鏡の電子ビームの径を制御する
    可動絞りにおいて、試料室あるいは電子光学系の
    鏡筒と該可動絞れ装置の間にバルブと、該可動絞
    り装置の予備排気室と該予備排気室を大気圧ある
    いは真空にする排気システムを設けたことを特徴
    とする走査形電子顕微鏡の可動絞り装置。
JP1987162429U 1987-10-26 1987-10-26 Pending JPH0166745U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987162429U JPH0166745U (ja) 1987-10-26 1987-10-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987162429U JPH0166745U (ja) 1987-10-26 1987-10-26

Publications (1)

Publication Number Publication Date
JPH0166745U true JPH0166745U (ja) 1989-04-28

Family

ID=31446246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987162429U Pending JPH0166745U (ja) 1987-10-26 1987-10-26

Country Status (1)

Country Link
JP (1) JPH0166745U (ja)

Similar Documents

Publication Publication Date Title
JPH0166745U (ja)
JPH0322351U (ja)
JPS6365952U (ja)
JPS61186158U (ja)
JPS6438752U (ja)
JPH0295860U (ja)
JPS63148903U (ja)
JPS62124755U (ja)
JPH02140516U (ja)
JPH02147U (ja)
JPH0446347U (ja)
JPS645357U (ja)
JPS6387760U (ja)
JPS6389666U (ja)
JPS62176957U (ja)
JPS62119485U (ja)
SE7909983L (sv) Brensledoseringsventil for brensleinsprutningsanleggning
JPH02143761U (ja)
JPH032976U (ja)
JPH035921U (ja)
JPH0348849U (ja)
JPH0211159U (ja)
JPS6153642U (ja)
JPS6292400U (ja)
JPS6391152U (ja)