JPH0477116U - - Google Patents

Info

Publication number
JPH0477116U
JPH0477116U JP12071990U JP12071990U JPH0477116U JP H0477116 U JPH0477116 U JP H0477116U JP 12071990 U JP12071990 U JP 12071990U JP 12071990 U JP12071990 U JP 12071990U JP H0477116 U JPH0477116 U JP H0477116U
Authority
JP
Japan
Prior art keywords
cam
drive
lens
cam member
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
JP12071990U
Other languages
Japanese (ja)
Other versions
JP2532713Y2 (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 JP12071990U priority Critical patent/JP2532713Y2/en
Publication of JPH0477116U publication Critical patent/JPH0477116U/ja
Application granted granted Critical
Publication of JP2532713Y2 publication Critical patent/JP2532713Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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図および第２図は、いずれも本考案に係る
ズームレンズのカム機構の一実施例の構成を示す
断面図および外観図、第３図は、同実施例に係る
駆動カム部材と従動カム部材の斜視図、第４図は
同実施例に適用されているばね部材の斜視図であ
る。 １……固定筒体、２……直進ガイド溝、３……
レンズ保持枠、４……レンズ群、５……カムフオ
ロワー、６……駆動カム部材、６ａ……突片、７
……カム面、８……従動カム部材、８ａ……切欠
部、９……カム面、１０……ばね部材、Ｏ……光
軸。 1 and 2 are a sectional view and an external view showing the configuration of an embodiment of a cam mechanism for a zoom lens according to the present invention, and FIG. 3 is a drive cam member and a driven cam according to the embodiment. FIG. 4 is a perspective view of a spring member applied to the same embodiment. 1... Fixed cylinder body, 2... Straight guide groove, 3...
Lens holding frame, 4... Lens group, 5... Cam follower, 6... Drive cam member, 6a... Projection piece, 7
... Cam surface, 8 ... Followed cam member, 8a ... Notch, 9 ... Cam surface, 10 ... Spring member, O ... Optical axis.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] レンズ光学系の光軸方向への移動制御をカム部
材とカムフオロワーとによつて行うズームレンズ
のカム機構において、カムフオロワーを有しレン
ズ光学系を保持するレンズ保持枠と、このレンズ
保持枠を光軸方向へ移動可能に支持する固定筒体
と、駆動モータによつて回転駆動され、少なくと
も一端面に所定形状のカム面を有する駆動カム部
材と、この駆動カム部材のカム面と略等価なカム
面を有し上記カムフオロワーを上記駆動カム部材
のカム面との間に挟んで駆動カム部材と同期して
回転しながら光軸方向へ移動する従動カム部材と
、この従動カム部材を介して上記カムフオロワー
を上記駆動カム部材のカム面へ圧接付勢させるば
ね部材とから構成したことを特徴とするズームレ
ンズのカム機構。 In a zoom lens cam mechanism in which the movement of the lens optical system in the optical axis direction is controlled by a cam member and a cam follower, a lens holding frame that has a cam follower and holds the lens optical system, and a lens holding frame that holds the lens optical system along the optical axis. a fixed cylindrical body supported movably in a direction; a drive cam member rotatably driven by a drive motor and having a cam surface of a predetermined shape on at least one end surface; and a cam surface substantially equivalent to the cam surface of the drive cam member. a driven cam member which sandwiches the cam follower with the cam surface of the drive cam member and moves in the optical axis direction while rotating in synchronization with the drive cam member; A cam mechanism for a zoom lens, comprising a spring member that presses against the cam surface of the drive cam member.
JP12071990U 1990-11-20 1990-11-20 Zoom lens cam mechanism Expired - Fee Related JP2532713Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12071990U JP2532713Y2 (en) 1990-11-20 1990-11-20 Zoom lens cam mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12071990U JP2532713Y2 (en) 1990-11-20 1990-11-20 Zoom lens cam mechanism

Publications (2)

Publication Number Publication Date
JPH0477116U true JPH0477116U (en) 1992-07-06
JP2532713Y2 JP2532713Y2 (en) 1997-04-16

Family

ID=31868609

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12071990U Expired - Fee Related JP2532713Y2 (en) 1990-11-20 1990-11-20 Zoom lens cam mechanism

Country Status (1)

Country Link
JP (1) JP2532713Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005157290A (en) * 2003-10-30 2005-06-16 Hitachi Maxell Ltd Camera
JP2006276596A (en) * 2005-03-30 2006-10-12 Nidec Copal Corp Lens-driving device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005157290A (en) * 2003-10-30 2005-06-16 Hitachi Maxell Ltd Camera
JP2006276596A (en) * 2005-03-30 2006-10-12 Nidec Copal Corp Lens-driving device
JP4619174B2 (en) * 2005-03-30 2011-01-26 日本電産コパル株式会社 Lens drive device

Also Published As

Publication number Publication date
JP2532713Y2 (en) 1997-04-16

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Legal Events

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LAPS Cancellation because of no payment of annual fees