FR2506034B1 - Objectif a focale variable et a mise au point automatique d'image - Google Patents

Objectif a focale variable et a mise au point automatique d'image

Info

Publication number
FR2506034B1
FR2506034B1 FR8208387A FR8208387A FR2506034B1 FR 2506034 B1 FR2506034 B1 FR 2506034B1 FR 8208387 A FR8208387 A FR 8208387A FR 8208387 A FR8208387 A FR 8208387A FR 2506034 B1 FR2506034 B1 FR 2506034B1
Authority
FR
France
Prior art keywords
focus
automatic image
variable
focus lens
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.)
Expired
Application number
FR8208387A
Other languages
English (en)
Other versions
FR2506034A1 (fr
Inventor
Akihiko Hashimoto
Hitoshi Shirai
Kazutoshi Shiratori
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Publication of FR2506034A1 publication Critical patent/FR2506034A1/fr
Application granted granted Critical
Publication of FR2506034B1 publication Critical patent/FR2506034B1/fr
Expired 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
    • 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
    • G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
    • 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
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
FR8208387A 1981-05-14 1982-05-13 Objectif a focale variable et a mise au point automatique d'image Expired FR2506034B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56072740A JPS57188004A (en) 1981-05-14 1981-05-14 Automatic focusing zoom lens

Publications (2)

Publication Number Publication Date
FR2506034A1 FR2506034A1 (fr) 1982-11-19
FR2506034B1 true FR2506034B1 (fr) 1986-04-18

Family

ID=13498051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8208387A Expired FR2506034B1 (fr) 1981-05-14 1982-05-13 Objectif a focale variable et a mise au point automatique d'image

Country Status (5)

Country Link
US (1) US4621906A (fr)
JP (1) JPS57188004A (fr)
DE (1) DE3218335C2 (fr)
FR (1) FR2506034B1 (fr)
GB (1) GB2100026B (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602861A (en) * 1982-12-23 1986-07-29 Minolta Camera Kabushiki Kaisha Auto-focusing system
US4509842A (en) * 1983-02-01 1985-04-09 Minolta Camera Kabushiki Kaisha Camera system capable of focus detection through an interchangeable objective lens
US4763999A (en) * 1987-01-12 1988-08-16 Eastman Kodak Company Zoom lens assembly
JP2505192B2 (ja) * 1987-03-10 1996-06-05 オリンパス光学工業株式会社 ズ−ム機構
US4925282A (en) * 1987-06-04 1990-05-15 Nikon Corporation Zoom lens assembly
GB2210704B (en) * 1987-10-02 1991-11-06 Olympus Optical Co Zoom mechanism for zoom lenses
CA1331429C (fr) * 1988-06-03 1994-08-16 Hiroshi Nomura Barillet de tele-objectif et appareil photo utilisant ce barillet
US5231449A (en) * 1988-06-03 1993-07-27 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens barrel and camera incorporating such barrel
JPH0727450Y2 (ja) * 1988-10-04 1995-06-21 旭光学工業株式会社 ズームレンズカメラの開放ｆ値検出装置
FR2637989A1 (fr) * 1988-10-15 1990-04-20 Asahi Optical Co Ltd Ensemble d'objectif zoom pour appareil photographique et procede de commande de l'ensemble d'objectif zoom
US5233472A (en) * 1988-10-15 1993-08-03 Asahi Kogaku Kogyo Kabushiki Kaisha Method of controlling a zoom lens assembly
GB2261303B (en) * 1989-03-31 1993-09-15 Asahi Optical Co Ltd Zooming adjustment of a zoom lens
JPH0520948U (ja) * 1991-02-28 1993-03-19 池田物産株式会社 自動車の成形天井構造
US5339194A (en) * 1992-08-17 1994-08-16 Ram Optical Instrumentation, Inc. Power zoom optical unit with encoder
DE4326454C2 (de) * 1992-10-19 2003-12-18 Pentax Corp Kamera mit Zoomobjektiv
JP3744388B2 (ja) * 2001-06-26 2006-02-08 ソニー株式会社 撮像装置および撮像方法
US6966940B2 (en) * 2002-04-04 2005-11-22 Donaldson Company, Inc. Air filter cartridge
JP5002289B2 (ja) * 2007-03-12 2012-08-15 キヤノン株式会社 撮影装置
CN114077144B (zh) * 2021-08-13 2024-04-02 深圳市安华光电技术股份有限公司 用于投影仪的自动调焦镜头及投影仪

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20914C (de) * G. A. WEISSENHAGEN in Berlin SW., Wilhelmstrafse 122 Neuerungen an HängegerQsten
JPS5647533B2 (fr) * 1973-12-14 1981-11-10
GB1484414A (en) * 1974-05-28 1977-09-01 Schneider Co Optische Werke Adjusting device for variable-focus lenses
JPS5266445A (en) * 1975-11-27 1977-06-01 Fuji Photo Optical Co Ltd Zoom lens
US4183639A (en) * 1976-11-25 1980-01-15 Bell & Howell Company Focusing system
JPS53116828A (en) * 1977-03-23 1978-10-12 Bell & Howell Japan Autoofocusing system for zoom lens
US4209241A (en) * 1977-10-12 1980-06-24 Minolta Camera Kabushiki Kaisha Photoelectric rangefinder
JPS5492726A (en) * 1977-12-29 1979-07-23 Minolta Camera Co Ltd Lens drive device for automatic focus control camera
US4182563A (en) * 1978-04-20 1980-01-08 Polaroid Corporation Focus control system for interchangeable adjustable focus lenses
DE2820964A1 (de) * 1978-05-12 1979-11-15 Agfa Gevaert Ag Automatische fokussiereinrichtung
JPS54155832A (en) * 1978-05-30 1979-12-08 Canon Inc Focusing detector
US4185191A (en) * 1978-06-05 1980-01-22 Honeywell Inc. Range determination system
DE2832963A1 (de) * 1978-07-27 1980-02-14 Agfa Gevaert Ag Fotografische oder kinematografische kamera mit autofokus-einrichtung und brennweitenverstellung
JPS5548737A (en) * 1978-10-02 1980-04-08 Konishiroku Photo Ind Co Ltd Photoelectrically focus detecting device mounted camera
DE2925906A1 (de) * 1979-06-27 1981-01-15 Rollei Werke Franke Heidecke Optisches abbildungssystem mit veraenderbarer brennweite, insbesondere zoomobjektiv fuer fotografische kameras
US4288152A (en) * 1979-08-16 1981-09-08 Minolta Camera Kabushiki Kaisha Automatic range finder system
US4351590A (en) * 1979-10-16 1982-09-28 Canon Kabushiki Kaisha Motion picture camera with automatic focusing device
JPS57165821A (en) * 1981-04-07 1982-10-13 Nippon Kogaku Kk <Nikon> Ttl automatic focusing device of camera

Also Published As

Publication number Publication date
FR2506034A1 (fr) 1982-11-19
DE3218335C2 (de) 1985-03-14
DE3218335A1 (de) 1982-11-25
GB2100026A (en) 1982-12-15
GB2100026B (en) 1985-08-07
JPH0241721B2 (fr) 1990-09-19
US4621906A (en) 1986-11-11
JPS57188004A (en) 1982-11-18

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Legal Events

Date Code Title Description
ST Notification of lapse