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JPH0442617U - - Google Patents

Info

Publication number
JPH0442617U
JPH0442617U JP1990084337U JP8433790U JPH0442617U JP H0442617 U JPH0442617 U JP H0442617U JP 1990084337 U JP1990084337 U JP 1990084337U JP 8433790 U JP8433790 U JP 8433790U JP H0442617 U JPH0442617 U JP H0442617U
Authority
JP
Japan
Prior art keywords
lens barrel
linear
group lens
lens
rear group
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
JP1990084337U
Other languages
Japanese (ja)
Other versions
JP2577259Y2 (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 JP1990084337U priority Critical patent/JP2577259Y2/en
Priority to GB9023329A priority patent/GB2237406B/en
Priority to FR9013302A priority patent/FR2653902B1/fr
Priority to DE4042657A priority patent/DE4042657C2/en
Priority to DE4042658A priority patent/DE4042658C2/en
Priority to DE4042659A priority patent/DE4042659C2/en
Priority to DE4034390A priority patent/DE4034390C2/en
Publication of JPH0442617U publication Critical patent/JPH0442617U/ja
Priority to KR1019930017898A priority patent/KR970003287B1/en
Priority to US08/337,235 priority patent/US5469300A/en
Priority to HK98100500A priority patent/HK1001571A1/en
Application granted granted Critical
Publication of JP2577259Y2 publication Critical patent/JP2577259Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Lens Barrels (AREA)
  • Shutters For Cameras (AREA)

Description

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

第１図は本考案のズームレンズ鏡筒の実施例を
示す、特に前群レンズ筒の内部のシヤツタユニツ
ト回りの分解斜視図、第２図は同シヤツタユニツ
トとシヤツタ保持枠の分解斜視図、第３図は要部
の分解斜視図、第４図はレンズ鏡筒全体の縦断面
図であつて、上半分はレンズ収納状態、下半分は
レンズ突出状態（テレ状態）を示している。第５
図は第４図のレンズ鏡筒の要部の拡大断面図であ
る。 １０……カム環、１１……固定鏡筒、１１ａ…
…直進案内溝、１２……ヘリコイド環、１２ａ…
…雌ヘリコイド、１３……前群レンズ筒、１３ａ
……雄ヘリコイド、１３ｃ……シヤツタ保持枠（
案内部材）、１３ｄ……前群用直進溝、１３ｅ…
…後群用直進溝、１４……直進案内板、１５……
直進案内環、１５ａ……直進キー、１６……シヤ
ツタユニツト、１７……ヘリコイド環、１８……
前群レンズ枠、１９……後群レンズ枠、１９ａ…
…カムローラ、１９ｂ……直進キー。 Fig. 1 is an exploded perspective view showing an embodiment of the zoom lens barrel of the present invention, in particular the shutter unit and its surroundings inside the front group lens barrel, Fig. 2 is an exploded perspective view of the shutter unit and shutter holding frame, and Fig. 3 4 is an exploded perspective view of the main parts, and FIG. 4 is a longitudinal sectional view of the entire lens barrel, with the upper half showing the lens in the retracted state and the lower half showing the lens in the protruding state (telephoto state). Fifth
The figure is an enlarged sectional view of the main part of the lens barrel shown in FIG. 4. 10...Cam ring, 11...Fixed lens barrel, 11a...
... Straight guide groove, 12... Helicoid ring, 12a...
...Female helicoid, 13...Front group lens barrel, 13a
...Male helicoid, 13c...Shutter holding frame (
guide member), 13d...front group straight groove, 13e...
...Rear group straight groove, 14... Straight guide plate, 15...
Straight guide ring, 15a... Straight key, 16... Shutter unit, 17... Helicoid ring, 18...
Front group lens frame, 19...Rear group lens frame, 19a...
...Cam roller, 19b...straight key.

Claims (1)

【実用新案登録請求の範囲】 (1) 少なくとも前後２群の可動レンズを備えた
ズームレンズ鏡筒であつて、上記前後２群の可動
レンズ群はそれぞれ光軸方向に直進案内されるズ
ームレンズ鏡筒において、 上記前群レンズを支持した前群レンズ筒と、固
定鏡筒または固定鏡筒に直進案内された直進部材
との間に、前群レンズの直進案内機構を設け、 上記後群レンズを支持した後群レンズ枠と、上
記前群レンズ筒との間に、後群レンズの直進案内
機構を設けたことを特徴とするズームレンズ鏡筒
。 (2) 請求項１において、前群レンズの直進案内
機構は、前端部が開放された、光軸と平行な方向
の直進キーを有する回転を拘束された直進案内環
と；この直進案内環の直進キーに嵌まる、前群レ
ンズ筒と一体の案内部材に形成した前群用直進溝
と；から構成されているズームレンズ鏡筒。 (3) 請求項２において、後群レンズの直進案内
機構は、上記案内部材に形成した後群用直進溝と
；この後群用直進溝に嵌まる、後群レンズ枠に形
成した光軸と平行な方向の前端部が開放された直
進キーと；から構成されているズームレンズ鏡筒
。 (4) 請求項２または３において、案内部材は、
シヤツタユニツトを固定するシヤツタ保持枠であ
るズームレンズ鏡筒。[Claims for Utility Model Registration] (1) A zoom lens barrel equipped with at least two front and rear movable lens groups, wherein each of the two front and rear movable lens groups is guided straight in the optical axis direction. In the tube, a linear guide mechanism for the front group lens is provided between the front group lens tube supporting the front group lens and a fixed lens barrel or a linearly moving member guided linearly by the fixed lens barrel, and the rear group lens is A zoom lens barrel characterized in that a linear guide mechanism for a rear group lens is provided between a supported rear group lens frame and the front group lens barrel. (2) In claim 1, the linear guide mechanism for the front group lens includes a linear guide ring whose front end is open and whose rotation is restrained and has a linear key in a direction parallel to the optical axis; A zoom lens barrel comprising: a front group linear groove formed in a guide member integral with the front group lens barrel, which fits into a linear key; (3) In claim 2, the rear group lens linear guide mechanism includes a rear group linear groove formed in the guide member; and an optical axis formed in the rear group lens frame that fits into the rear group linear groove. A zoom lens barrel consisting of a linear key whose front end in a parallel direction is open; and; (4) In claim 2 or 3, the guide member is
A zoom lens barrel is a shutter holding frame that secures the shutter unit.
JP1990084337U 1989-10-27 1990-08-08 Zoom lens barrel Expired - Fee Related JP2577259Y2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP1990084337U JP2577259Y2 (en) 1990-08-08 1990-08-08 Zoom lens barrel
FR9013302A FR2653902B1 (en) 1989-10-27 1990-10-26
GB9023329A GB2237406B (en) 1989-10-27 1990-10-26 Zoom lens barrel
DE4042658A DE4042658C2 (en) 1989-10-27 1990-10-29 Varifocal lens barrel
DE4042659A DE4042659C2 (en) 1989-10-27 1990-10-29 Varifocal lens barrel
DE4034390A DE4034390C2 (en) 1989-10-27 1990-10-29 Varifocal lens barrel
DE4042657A DE4042657C2 (en) 1989-10-27 1990-10-29 Zoom lens barrel
KR1019930017898A KR970003287B1 (en) 1989-10-27 1993-09-07 Zoom lens barrel
US08/337,235 US5469300A (en) 1989-10-27 1994-11-04 Zoom lens barrel
HK98100500A HK1001571A1 (en) 1989-10-27 1998-01-20 Zoom lens barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990084337U JP2577259Y2 (en) 1990-08-08 1990-08-08 Zoom lens barrel

Publications (2)

Publication Number Publication Date
JPH0442617U true JPH0442617U (en) 1992-04-10
JP2577259Y2 JP2577259Y2 (en) 1998-07-23

Family

ID=31632742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990084337U Expired - Fee Related JP2577259Y2 (en) 1989-10-27 1990-08-08 Zoom lens barrel

Country Status (1)

Country Link
JP (1) JP2577259Y2 (en)

Also Published As

Publication number Publication date
JP2577259Y2 (en) 1998-07-23

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees