JPS6281917U - - Google Patents

Info

Publication number
JPS6281917U
JPS6281917U JP17361485U JP17361485U JPS6281917U JP S6281917 U JPS6281917 U JP S6281917U JP 17361485 U JP17361485 U JP 17361485U JP 17361485 U JP17361485 U JP 17361485U JP S6281917 U JPS6281917 U JP S6281917U
Authority
JP
Japan
Prior art keywords
holding frame
lens holding
rotating ring
groove provided
fixed cylinder
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
JP17361485U
Other languages
Japanese (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 JP17361485U priority Critical patent/JPS6281917U/ja
Publication of JPS6281917U publication Critical patent/JPS6281917U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の一実施例のズームレンズ鏡筒
の縦断面図、第2図はそのズームレンズ鏡筒の広
角端状態における関係を示す要部展開図、第3図
は同じく望遠端状態における関係を示す要部展開
図である。 1……固定筒、1a,1b……カム溝、2……
中間筒、2e……周溝、4……操作部材、5……
第1レンズ保持枠、6……第2レンズ保持枠、6
a……キー部、6b……係合ピン、7……回転リ
ング、7a……直進キー溝、7b……係合ピン、
9……第3レンズ保持枠、L……フオーカスレ
ンズ、L……補正系レンズ、L……リレーレ
ンズ群。
Fig. 1 is a vertical cross-sectional view of a zoom lens barrel according to an embodiment of the present invention, Fig. 2 is an exploded view of the main parts showing the relationship of the zoom lens barrel at the wide-angle end state, and Fig. 3 is the same at the telephoto end state. FIG. 1...Fixed tube, 1a, 1b...Cam groove, 2...
Intermediate cylinder, 2e... Circumferential groove, 4... Operation member, 5...
First lens holding frame, 6...Second lens holding frame, 6
a...key part, 6b...engaging pin, 7...rotating ring, 7a...straight key groove, 7b...engaging pin,
9...Third lens holding frame, L1 ...Focus lens, L2 ...Correction system lens, L3 ...Relay lens group.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 固定筒と単一操作部材との間に該操作部材と一
体的に直進する中間筒を有し、該固定筒の内径部
に回転リングとレンズ保持枠を嵌装し、該レンズ
保持枠に設けたキー部を該回転リングに設けた直
進キー溝と嵌合させ、該回転リングには該固定筒
に設けたカム溝を貫通して該中間筒に設けた周溝
の交点に係合する係合ピンを設け、該操作部材の
直進操作によつて該係合ピン及び該回転リングを
介して該レンズ保持枠に回動運動を与えるように
し、かつ該レンズ保持枠に設けた係合ピンを該固
定筒に設けた別のカム溝に係合させて該レンズ保
持枠の回動運動を光軸に沿う方向の運動に変換す
るようにしたズームレンズ鏡筒。
An intermediate cylinder is provided between the fixed cylinder and the single operating member, and a rotating ring and a lens holding frame are fitted to the inner diameter part of the fixed cylinder, and a rotating ring and a lens holding frame are provided on the lens holding frame. The key portion is fitted into a straight key groove provided on the rotating ring, and the rotating ring has a locking member that passes through a cam groove provided on the fixed cylinder and engages with an intersection of a circumferential groove provided on the intermediate cylinder. A dowel pin is provided, and rotational movement is applied to the lens holding frame via the engagement pin and the rotation ring by linear operation of the operating member, and the engagement pin provided on the lens holding frame is A zoom lens barrel configured to engage another cam groove provided in the fixed barrel to convert rotational movement of the lens holding frame into movement in a direction along an optical axis.
JP17361485U 1985-11-13 1985-11-13 Pending JPS6281917U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17361485U JPS6281917U (en) 1985-11-13 1985-11-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17361485U JPS6281917U (en) 1985-11-13 1985-11-13

Publications (1)

Publication Number Publication Date
JPS6281917U true JPS6281917U (en) 1987-05-25

Family

ID=31111238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17361485U Pending JPS6281917U (en) 1985-11-13 1985-11-13

Country Status (1)

Country Link
JP (1) JPS6281917U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63304215A (en) * 1987-06-04 1988-12-12 Nikon Corp Zoom lens barrel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63304215A (en) * 1987-06-04 1988-12-12 Nikon Corp Zoom lens barrel

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