JPH0431127U - - Google Patents

Info

Publication number
JPH0431127U
JPH0431127U JP7202390U JP7202390U JPH0431127U JP H0431127 U JPH0431127 U JP H0431127U JP 7202390 U JP7202390 U JP 7202390U JP 7202390 U JP7202390 U JP 7202390U JP H0431127 U JPH0431127 U JP H0431127U
Authority
JP
Japan
Prior art keywords
zoom
gear
tooth row
rack tooth
lens
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
JP7202390U
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 JP7202390U priority Critical patent/JPH0431127U/ja
Publication of JPH0431127U publication Critical patent/JPH0431127U/ja
Pending legal-status Critical Current

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  • Lens Barrels (AREA)

Description

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

第１図は従来公知のカム筒型ズーム作動機構の
要部を示した斜面図、第２図は、同じく従来公知
のリードスクリユー型ズーム作動機構の要部を示
した斜面図、第３図は、本考案に係るズーム作動
機構の要部を示す斜面図、第４図は、本考案の他
の実施例を示すズーム作動機構要部の斜面図であ
つて、第５図は、本考案に係るズームレンズの作
動機構と、その駆動回路とを概略的に示す説明図
である。 １……ズーム移動枠、２，３……ガイドポール
、４……ズーム駆動モータ、５……ズーム減速機
、１０……ズーム用出力歯車、１６……ラツク歯
列、１７……移動枠脚片、Ｘ−Ｘ……レンズ光軸
。 FIG. 1 is a perspective view showing the main parts of a conventionally known cam barrel type zoom actuation mechanism, FIG. 2 is a perspective view showing the main parts of a conventionally known lead screw type zoom actuation mechanism, and FIG. 4 is a perspective view showing the main part of the zoom operation mechanism according to the present invention, FIG. 4 is a perspective view of the main part of the zoom operation mechanism showing another embodiment of the invention, and FIG. FIG. 2 is an explanatory diagram schematically showing an operating mechanism of a zoom lens and a drive circuit thereof. 1...Zoom moving frame, 2, 3...Guide pole, 4...Zoom drive motor, 5...Zoom reducer, 10...Zoom output gear, 16...Rack tooth row, 17...Moving frame leg One side, X-X... Lens optical axis.

Claims (1)

【実用新案登録請求の範囲】 (1) ズームレンズ鏡筒に固定された複数のガイ
ドポール２，３に貫装支持され、レンズ光軸Ｘ−
Ｘに沿つて前後移動すべくなされたズームレンズ
の可動光学系を保持するズーム移動枠１と、 該ズーム移動枠１から延設され、これと一体化
される脚片１７と、 この脚片１７上に刻設されたラツク歯列１６と
、 ズーム駆動モータ４の回転を減速するズーム減
速機５の回転出力端に設けられたズーム用出力歯
車１０とから成り、 ズーム減速機５の回転出力を歯車を介して前記
ラツク歯列１６と噛合させて、回転運動をラツク
歯列１６を介してズーム移動枠１の直進前後運動
に変換するようにしたことを特徴とするズームレ
ンズの作動機構。 (2) 前記ズーム減速機５の回転出力を前記ラツ
ク歯列１６の直進前後運動に変換する歯車が、 ズーム用出力歯車１０と噛合する中継歯車１１
と、これと同軸に設けられたウオーム歯車１４と
により構成されることを特徴とする請求項第(1)
項に記載のズームレンズの作動機構。[Claims for Utility Model Registration] (1) The lens is supported through a plurality of guide poles 2 and 3 fixed to the zoom lens barrel, and
A zoom movement frame 1 that holds a movable optical system of a zoom lens that is configured to move back and forth along X; a leg piece 17 that extends from and is integrated with the zoom movement frame 1; and this leg piece 17. It consists of a rack tooth row 16 carved on the top and a zoom output gear 10 provided at the rotational output end of the zoom reducer 5 that decelerates the rotation of the zoom drive motor 4. An operating mechanism for a zoom lens, characterized in that the gear is meshed with the rack tooth row 16 to convert rotational motion into linear back-and-forth motion of the zoom moving frame 1 via the rack tooth row 16. (2) A gear that converts the rotational output of the zoom reducer 5 into linear back-and-forth motion of the rack tooth row 16 is a relay gear 11 that meshes with the zoom output gear 10.
and a worm gear 14 provided coaxially with the worm gear 14.
The operating mechanism of the zoom lens described in section.
JP7202390U 1990-07-05 1990-07-05 Pending JPH0431127U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7202390U JPH0431127U (en) 1990-07-05 1990-07-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7202390U JPH0431127U (en) 1990-07-05 1990-07-05

Publications (1)

Publication Number Publication Date
JPH0431127U true JPH0431127U (en) 1992-03-12

Family

ID=31609587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7202390U Pending JPH0431127U (en) 1990-07-05 1990-07-05

Country Status (1)

Country Link
JP (1) JPH0431127U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012022346A (en) * 2011-11-04 2012-02-02 Tamron Co Ltd Lens drive device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161835A (en) * 1974-09-26 1976-05-28 Hararudo Heden Buyorun
JPS5417019A (en) * 1977-04-21 1979-02-08 Bolex Int Sa Optical system
JPS57124318A (en) * 1981-01-24 1982-08-03 Suraidetsukusu Kk Overhead type sliding movie projector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161835A (en) * 1974-09-26 1976-05-28 Hararudo Heden Buyorun
JPS5417019A (en) * 1977-04-21 1979-02-08 Bolex Int Sa Optical system
JPS57124318A (en) * 1981-01-24 1982-08-03 Suraidetsukusu Kk Overhead type sliding movie projector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012022346A (en) * 2011-11-04 2012-02-02 Tamron Co Ltd Lens drive device

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