JPH0251471U - - Google Patents

Info

Publication number
JPH0251471U
JPH0251471U JP13065888U JP13065888U JPH0251471U JP H0251471 U JPH0251471 U JP H0251471U JP 13065888 U JP13065888 U JP 13065888U JP 13065888 U JP13065888 U JP 13065888U JP H0251471 U JPH0251471 U JP H0251471U
Authority
JP
Japan
Prior art keywords
cylindrical
objective lens
lens barrel
introduction groove
constricted
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
JP13065888U
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 JP13065888U priority Critical patent/JPH0251471U/ja
Publication of JPH0251471U publication Critical patent/JPH0251471U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Blocking Light For Cameras (AREA)
  • Prevention Of Fouling (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示す一部断面図、
第2図は従来の一例を示す構成図である。 1…かん合部、2…円筒部、3…絞り部、4…
空気注入部、5…ねじ穴、6…止めねじ、7…空
気導入溝、8…空気吹出溝、20…対物レンズ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 対物レンズ鏡筒部と長さが略同寸法で、かつ対
    物レンズ鏡筒部をおおう円筒状部材の一端に形成
    した対物レンズ鏡筒部とかん合する円筒状かん合
    部と、このかん合部の円筒面に設けたネジ穴と、
    前記円筒状部材の他端に形成した端部の内径が細
    くなる絞り部と、前記かん合部と前記絞り部との
    間に形成した前記かん合部より大きな内径の円筒
    部と、この円筒部の円筒面に設けた空気注入部と
    、この空気注入部のある円筒部内周に円環状に設
    けた空気導入溝と、この空気導入溝のある円筒部
    から前記絞り部の端部まで内周にスペイラル状に
    複数設けた空気吹出溝とを含んで構成される事を
    特徴とする対物レンズ汚損防止キヤツプ。
JP13065888U 1988-10-04 1988-10-04 Pending JPH0251471U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13065888U JPH0251471U (ja) 1988-10-04 1988-10-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13065888U JPH0251471U (ja) 1988-10-04 1988-10-04

Publications (1)

Publication Number Publication Date
JPH0251471U true JPH0251471U (ja) 1990-04-11

Family

ID=31386024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13065888U Pending JPH0251471U (ja) 1988-10-04 1988-10-04

Country Status (1)

Country Link
JP (1) JPH0251471U (ja)

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