FR2683328B1 - Dispositif de reglage de point focal pour objectif zoom. - Google Patents

Dispositif de reglage de point focal pour objectif zoom.

Info

Publication number
FR2683328B1
FR2683328B1 FR9212929A FR9212929A FR2683328B1 FR 2683328 B1 FR2683328 B1 FR 2683328B1 FR 9212929 A FR9212929 A FR 9212929A FR 9212929 A FR9212929 A FR 9212929A FR 2683328 B1 FR2683328 B1 FR 2683328B1
Authority
FR
France
Prior art keywords
zoom lens
focal point
adjustment device
point adjustment
focal
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.)
Expired - Fee Related
Application number
FR9212929A
Other languages
English (en)
Other versions
FR2683328A1 (fr
Inventor
Hitoshi Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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 by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of FR2683328A1 publication Critical patent/FR2683328A1/fr
Application granted granted Critical
Publication of FR2683328B1 publication Critical patent/FR2683328B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
FR9212929A 1991-10-30 1992-10-29 Dispositif de reglage de point focal pour objectif zoom. Expired - Fee Related FR2683328B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3310192A JPH05127059A (ja) 1991-10-30 1991-10-30 カメラ用可変焦点距離レンズの焦点位置調整装置

Publications (2)

Publication Number Publication Date
FR2683328A1 FR2683328A1 (fr) 1993-05-07
FR2683328B1 true FR2683328B1 (fr) 1996-05-31

Family

ID=18002283

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9212929A Expired - Fee Related FR2683328B1 (fr) 1991-10-30 1992-10-29 Dispositif de reglage de point focal pour objectif zoom.

Country Status (5)

Country Link
US (1) US5475457A (fr)
JP (1) JPH05127059A (fr)
DE (1) DE4236780A1 (fr)
FR (1) FR2683328B1 (fr)
GB (1) GB2262356A (fr)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2790979B2 (ja) * 1994-08-10 1998-08-27 株式会社エルモ社 ビデオカメラのバックフォーカス調整装置
JPH0949961A (ja) * 1995-08-10 1997-02-18 Asahi Optical Co Ltd 可変焦点距離レンズのレンズ位置調整装置
JPH114371A (ja) 1997-06-12 1999-01-06 Asahi Optical Co Ltd デジタルスチルカメラ
US5825559A (en) * 1997-06-27 1998-10-20 Eastman Kodak Company Optical assembly having a dual purpose focus
JPH11212161A (ja) * 1998-01-27 1999-08-06 Minolta Co Ltd カメラ
JP3515711B2 (ja) 1999-06-09 2004-04-05 ペンタックス株式会社 ズームレンズ系及びズームレンズ系の調整方法
JP3771909B2 (ja) 2002-02-21 2006-05-10 ペンタックス株式会社 沈胴式ズームレンズ鏡筒及びズームレンズ鏡筒の沈胴方法
US7106961B2 (en) * 2002-08-27 2006-09-12 Pentax Corporation Lens barrel incorporating the advancing/retracting mechanism
US7079761B2 (en) 2002-08-27 2006-07-18 Pentax Corporation Optical element retracting mechanism for a photographing lens
JP3863829B2 (ja) 2002-08-27 2006-12-27 ペンタックス株式会社 ズームレンズ鏡筒の繰出カム機構及び繰出カム機構
JP2004085934A (ja) 2002-08-27 2004-03-18 Pentax Corp ズームレンズ鏡筒の繰出カム機構及び繰出カム機構
US7058293B2 (en) 2002-08-27 2006-06-06 Pentax Corporation Optical element retracting mechanism for a retractable lens
JP2004085932A (ja) 2002-08-27 2004-03-18 Pentax Corp ズームレンズ鏡筒の繰出カム機構及び繰出カム機構
US7039311B2 (en) 2002-08-27 2006-05-02 Pentax Corporation Rotation transfer mechanism and a zoom camera incorporating the rotation transfer mechanism
US6965733B1 (en) 2002-08-27 2005-11-15 Pentax Corporation Lens barrel incorporating the cam mechanism
US7043154B2 (en) 2002-08-27 2006-05-09 Pentax Corporation Photographing lens having an optical element retracting mechanism
US6963694B2 (en) 2002-08-27 2005-11-08 Pentax Corporation Lens barrel
US7025512B2 (en) 2002-08-27 2006-04-11 Pentax Corporation Retracting mechanism of a retractable lens
US7031604B2 (en) 2002-08-27 2006-04-18 Pentax Corporation Lens barrel incorporating the linear guide mechanism
US6959148B2 (en) 2002-08-27 2005-10-25 Pentax Corporation Retractable photographing lens
US7215374B2 (en) * 2003-01-03 2007-05-08 Micron Technology, Inc. Camera module having geared lens barrel
JP2006227170A (ja) * 2005-02-16 2006-08-31 Sony Corp レンズ鏡筒および撮像装置
JP2007322709A (ja) * 2006-05-31 2007-12-13 Tamron Co Ltd 光学部材支持機構、光学装置、および間隔調整部材
JP5123625B2 (ja) * 2007-09-19 2013-01-23 オリンパス株式会社 顕微鏡対物レンズ
JP2011033885A (ja) * 2009-08-03 2011-02-17 Fujifilm Corp レンズ装置
JP5038387B2 (ja) * 2009-12-22 2012-10-03 株式会社コシナ プロジェクタのレンズ装置
KR101623144B1 (ko) * 2014-09-17 2016-05-23 주식회사 고영테크놀러지 스테레오 현미경을 이용한 3차원 형상 측정 장치
JP2020042145A (ja) * 2018-09-10 2020-03-19 株式会社ｎｉｔｔｏｈ 光学装置
JP7240129B2 (ja) * 2018-10-16 2023-03-15 日本電産サンキョー株式会社 情報読取装置とその調整方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4924133A (fr) * 1972-06-23 1974-03-04
US3876290A (en) * 1973-12-05 1975-04-08 Frank G Back Rapid focusing varifocal lens assembly
JPS5751366Y2 (fr) * 1978-08-21 1982-11-09
JPS5932971Y2 (ja) * 1979-10-22 1984-09-14 旭光学工業株式会社 ズ−ムレンズ鏡筒
US4458990A (en) * 1980-08-07 1984-07-10 Canon Kabushiki Kaisha Adjusting mechanism for lens mounting assembly
JPS57189109A (en) * 1981-05-18 1982-11-20 Canon Inc Optical adjustment method for copyingmachine
JPS60140018U (ja) * 1984-02-23 1985-09-17 キヤノン株式会社 ズ−ムレンズ鏡筒
US4771303A (en) * 1984-11-10 1988-09-13 Minolta Camera Kabushiki Kaisha Variable focal length camera
US4873542A (en) * 1987-09-04 1989-10-10 Konica Corporation Auto-focus camera
US4910544A (en) * 1988-02-15 1990-03-20 Asahi Kogaku Kogyo K.K. Focus adjusting apparatus in zoom lens camera
JP2792032B2 (ja) * 1988-05-14 1998-08-27 ミノルタ株式会社 ズームレンズ
JPH02128111A (ja) * 1988-11-08 1990-05-16 Canon Inc 精密移動装置
GB2230354B (en) * 1989-03-31 1993-09-15 Asahi Optical Co Ltd Zoom lens assembly
JPH0736330Y2 (ja) * 1989-04-28 1995-08-16 松下電器産業株式会社 レンズ保持装置
US5086312A (en) * 1989-08-31 1992-02-04 Fuji Photo Film Co., Ltd. Variable focal length camera with focus adjusting device
JP2971899B2 (ja) * 1990-02-14 1999-11-08 旭光学工業株式会社 ズームレンズ鏡筒
JPH04136908A (ja) * 1990-09-28 1992-05-11 Fuji Photo Optical Co Ltd ズームレンズの初期焦点調整機構

Also Published As

Publication number Publication date
JPH05127059A (ja) 1993-05-25
DE4236780A1 (fr) 1993-05-06
US5475457A (en) 1995-12-12
GB9222649D0 (en) 1992-12-09
FR2683328A1 (fr) 1993-05-07
GB2262356A (en) 1993-06-16

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20070629