JPH0386312U - - Google Patents

Info

Publication number
JPH0386312U
JPH0386312U JP14648989U JP14648989U JPH0386312U JP H0386312 U JPH0386312 U JP H0386312U JP 14648989 U JP14648989 U JP 14648989U JP 14648989 U JP14648989 U JP 14648989U JP H0386312 U JPH0386312 U JP H0386312U
Authority
JP
Japan
Prior art keywords
lens
helicoid
holding member
lens holding
optical axis
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.)
Granted
Application number
JP14648989U
Other languages
Japanese (ja)
Other versions
JP2572452Y2 (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 JP1989146489U priority Critical patent/JP2572452Y2/en
Publication of JPH0386312U publication Critical patent/JPH0386312U/ja
Application granted granted Critical
Publication of JP2572452Y2 publication Critical patent/JP2572452Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)

Description

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

第１図は本考案の実施例の前ボデイ及びレンズ
駆動機構を示す斜視図、第２図はレンズの光軸を
含む縦断面図、第３図はレンズ駆動機構の断面図
を示す。第４図は鏡筒部の斜視図、第５図は従来
技術の鏡筒部の断面図を示す。 主要部分の符号の説明、２……内ヘリコイド、
２ａ……ヘリコイド、６……鏡筒、６ａ……ヘリ
コイド、６ｂ……ヘリコイド、８……後群直進ガ
イド筒、３１……前群レンズ室、３１ａ……ヘリ
コイド、３１ｂ……レバー、３３……シヤツタ駆
動部、３３ａ……レンズ駆動レバー。 FIG. 1 is a perspective view showing the front body and lens drive mechanism of an embodiment of the present invention, FIG. 2 is a longitudinal sectional view including the optical axis of the lens, and FIG. 3 is a sectional view of the lens drive mechanism. FIG. 4 is a perspective view of the lens barrel, and FIG. 5 is a sectional view of the lens barrel of the prior art. Explanation of the symbols of the main parts, 2... Inner helicoid,
2a... Helicoid, 6... Lens barrel, 6a... Helicoid, 6b... Helicoid, 8... Rear group linear guide tube, 31... Front group lens chamber, 31a... Helicoid, 31b... Lever, 33... ...Shutter drive unit, 33a...lens drive lever.

Claims (1)

【実用新案登録請求の範囲】 第１レンズを保持し、該レンズの光軸を軸中心
に刻設された第１ヘリコイドを有する第１レンズ
保持部材と、 該第１レンズ保持部材に固定され、該第１レン
ズの光軸を軸中心に刻設された第２ヘリコイドを
有する固定部材と、 該第１ヘリコイドと螺合する第３ヘリコイドを
有し、該第３及び第１両ヘリコイドを介して該第
１レンズ保持部材と螺合する回転部材と、 第２レンズを保持し、該第２ヘリコイドと螺合
する第４ヘリコイドを有し、該第４及び第２両ヘ
リコイドを介して該固定部材と螺合する第２レン
ズ保持部材と、 該第２レンズ保持部材を光軸方向に移動させる
、第２レンズ駆動部材とを有し、 該回転部材の回転に應動して該第１レンズ保持
部材及び該固定部材を光軸方向に移動させ、 該第２レンズ駆動部材の作動により、該第２レ
ンズ保持部材のみを該固定部材に対して相対的に
光軸方向に移動させるレンズ駆動機構において、 該第１レンズ保持部材と該回転部材とを一体に
形成し、該一体に形成された部材に該第１及び第
２両ヘリコイドを共に刻設したことを特徴とする
レンズ駆動機構。[Claims for Utility Model Registration] A first lens holding member that holds a first lens and has a first helicoid carved around the optical axis of the lens; fixed to the first lens holding member; a fixing member having a second helicoid carved around the optical axis of the first lens; a third helicoid screwed into the first helicoid; a rotating member that is threadedly engaged with the first lens holding member; a fourth helicoid that holds a second lens and that is threadedly engaged with the second helicoid; a second lens holding member that is screwed together with the second lens holding member; and a second lens driving member that moves the second lens holding member in the optical axis direction; A lens drive mechanism in which a member and the fixing member are moved in the optical axis direction, and only the second lens holding member is moved in the optical axis direction relative to the fixing member by operation of the second lens drive member. . A lens drive mechanism, characterized in that the first lens holding member and the rotating member are integrally formed, and both the first and second helicoids are carved on the integrally formed member.
JP1989146489U 1989-12-21 1989-12-21 Camera lens drive mechanism Expired - Lifetime JP2572452Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989146489U JP2572452Y2 (en) 1989-12-21 1989-12-21 Camera lens drive mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989146489U JP2572452Y2 (en) 1989-12-21 1989-12-21 Camera lens drive mechanism

Publications (2)

Publication Number Publication Date
JPH0386312U true JPH0386312U (en) 1991-08-30
JP2572452Y2 JP2572452Y2 (en) 1998-05-25

Family

ID=31693069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989146489U Expired - Lifetime JP2572452Y2 (en) 1989-12-21 1989-12-21 Camera lens drive mechanism

Country Status (1)

Country Link
JP (1) JP2572452Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5730809A (en) * 1980-08-01 1982-02-19 Kyocera Corp Interchangeable lens permitting automatic focusing
JPH0185707U (en) * 1987-11-25 1989-06-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5730809A (en) * 1980-08-01 1982-02-19 Kyocera Corp Interchangeable lens permitting automatic focusing
JPH0185707U (en) * 1987-11-25 1989-06-07

Also Published As

Publication number Publication date
JP2572452Y2 (en) 1998-05-25

Similar Documents

Publication Publication Date Title
JPS6432529U (en)
JPS58188614U (en) Lens feeding mechanism
JPH0386312U (en)
JPS61124009U (en)
JPH0283515U (en)
JPS61143118U (en)
JPH0373917U (en)
JPH0157711U (en)
JPH0392614U (en)
JPS63168415U (en)
JPH0227105U (en)
JPH0324619U (en)
JPS58115708U (en) lens barrel
JPH02117510U (en)
JPH0255213U (en)
JPS6455912U (en)
JPH0457806U (en)
JPH0442612U (en)
JPH0289412U (en)
JPH01133110U (en)
JPH0227108U (en)
JPS61171015U (en)
JPH0411505U (en)
JPH049011U (en)
JPH01137003U (en)

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term