DE3801360C2 - - Google Patents

Info

Publication number
DE3801360C2
DE3801360C2 DE3801360A DE3801360A DE3801360C2 DE 3801360 C2 DE3801360 C2 DE 3801360C2 DE 3801360 A DE3801360 A DE 3801360A DE 3801360 A DE3801360 A DE 3801360A DE 3801360 C2 DE3801360 C2 DE 3801360C2
Authority
DE
Germany
Prior art keywords
motor
speed
control element
actuation
focusing device
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 - Lifetime
Application number
DE3801360A
Other languages
German (de)
English (en)
Other versions
DE3801360A1 (de
DE3801360C3 (de
Inventor
Toshiaki Ishimaru
Shoji Kawamura
Shunji Hachioji Tokio/Tokyo Jp Matsutani
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
Priority claimed from JP941787A external-priority patent/JPS63177118A/ja
Priority claimed from JP62320473A external-priority patent/JP2634418B2/ja
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Publication of DE3801360A1 publication Critical patent/DE3801360A1/de
Publication of DE3801360C2 publication Critical patent/DE3801360C2/de
Application granted granted Critical
Publication of DE3801360C3 publication Critical patent/DE3801360C3/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Automatic Focus Adjustment (AREA)
DE3801360A 1987-01-19 1988-01-19 Motorgetriebene Fokussiervorrichtung Expired - Fee Related DE3801360C3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP941787A JPS63177118A (ja) 1987-01-19 1987-01-19 パワ−フオ−カス装置
JP62320473A JP2634418B2 (ja) 1987-12-18 1987-12-18 レンズ駆動装置

Publications (3)

Publication Number Publication Date
DE3801360A1 DE3801360A1 (de) 1988-07-28
DE3801360C2 true DE3801360C2 (en:Method) 1991-01-10
DE3801360C3 DE3801360C3 (de) 1997-04-17

Family

ID=26344139

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3801360A Expired - Fee Related DE3801360C3 (de) 1987-01-19 1988-01-19 Motorgetriebene Fokussiervorrichtung

Country Status (2)

Country Link
US (1) US4851869A (en:Method)
DE (1) DE3801360C3 (en:Method)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2744239B2 (ja) * 1988-01-14 1998-04-28 オリンパス光学工業株式会社 レンズ駆動装置
US5255043A (en) * 1988-08-30 1993-10-19 Asahi Kogaku Kogyo Kabushiki Kaisha Apparatus for maintaining constant image magnification in a camera system
US5159364A (en) * 1989-07-18 1992-10-27 Nikon Corporation Initial mode setting device for camera
US5274409A (en) * 1989-09-11 1993-12-28 Minolta Camera Kabushiki Kaisha Camera with multiple lens driving modes
US5148199A (en) * 1990-02-08 1992-09-15 Asahi Kogaku Kogyo Kabushiki Kaisha Motor-driven zoom lens barrel
JPH03236008A (ja) * 1990-02-14 1991-10-22 Asahi Optical Co Ltd 電動ズームレンズ鏡筒
JP2942296B2 (ja) * 1990-02-15 1999-08-30 旭光学工業株式会社 電動ズーム装置
JPH03237413A (ja) * 1990-02-15 1991-10-23 Asahi Optical Co Ltd 電動焦点距離変更装置
US5202717A (en) * 1990-05-08 1993-04-13 Olympus Optical Co., Ltd. Optical lens system-driving control apparatus for driving a plurality of lens groups in accordance with small amount of data
JP2798480B2 (ja) * 1990-05-14 1998-09-17 キヤノン株式会社 レンズ駆動装置
US5172149A (en) * 1990-05-23 1992-12-15 Victor Company Of Japan, Ltd. Drive apparatus and drive control apparatus for optical system of camera
CA2051986C (en) * 1990-10-04 1998-06-30 Joseph F. Bader Programmable emergency signalling device and system
US5305038A (en) * 1991-07-30 1994-04-19 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens camera
JPH05188262A (ja) * 1992-01-10 1993-07-30 Olympus Optical Co Ltd レンズ駆動装置
JPH05188261A (ja) * 1992-01-10 1993-07-30 Nikon Corp カメラのパワーフォーカス装置
US5648836A (en) * 1993-02-18 1997-07-15 Canon Kabushiki Kaisha Optical apparatus with control device for controlling movable optical member
US5918078A (en) * 1996-09-06 1999-06-29 Nikon Corporation Lens driving device
JP3783812B2 (ja) * 1997-11-11 2006-06-07 株式会社トプコン 測量機の合焦制御装置
JP4306835B2 (ja) * 1998-09-28 2009-08-05 キヤノン株式会社 超音波モータを備えた画像形成装置
JP3495658B2 (ja) * 1999-09-13 2004-02-09 ペンタックス株式会社 レンズ駆動制御装置
JP2005223766A (ja) * 2004-02-06 2005-08-18 Canon Inc 撮像装置及びその制御方法
JP2011037155A (ja) * 2009-08-12 2011-02-24 Seiko Epson Corp テープ供給装置およびこれを備えたテープ印刷装置
JP6167534B2 (ja) 2013-01-30 2017-07-26 リコーイメージング株式会社 レンズ駆動装置およびレンズ駆動方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415424A1 (de) * 1983-05-24 1984-12-06 Asahi Kogaku Kogyo K.K., Tokio/Tokyo Fokuseinstellvorrichtung fuer eine kamera
DE3611784A1 (de) * 1985-06-20 1987-01-02 Olympus Optical Co Vorrichtung zum erzeugen von der entfernungseinstellung eines objektivs einer kamera entsprechenden signalen

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798517A (en) * 1971-12-22 1974-03-19 Rank Organisation Ltd Camera lens control mechanism
US4002405A (en) * 1975-04-03 1977-01-11 Curt Stahl Variable speed control for zooming
US4161756A (en) * 1976-03-19 1979-07-17 Jos. Schneider & Co. Optische Werke Control system for varifocal objective
US4176935A (en) * 1977-10-25 1979-12-04 George Smith Motorized lens ring adjustor for still camera lens
JPS5552007A (en) * 1978-10-11 1980-04-16 Canon Inc Lens driving device with limitation of movable position
JPH0310483Y2 (en:Method) * 1980-11-21 1991-03-15
US4446526A (en) * 1981-07-02 1984-05-01 Asahi Kogaku Kogyo Kabushiki Kaisha Control circuit for zooming device
JPS5877306U (ja) * 1981-11-19 1983-05-25 旭光学工業株式会社 ズ−ミング装置
JPS58194005A (ja) * 1982-05-08 1983-11-11 Nippon Kogaku Kk <Nikon> 自動合焦ズ−ムレンズ装置
JPS59110A (ja) * 1982-06-25 1984-01-05 Mamiya Koki Kk 一眼レフレツクスカメラ等におけるレンズ駆動装置
JPS60176415A (ja) * 1984-02-20 1985-09-10 東洋通信機株式会社 警報信号伝送方法
JPS6236619A (ja) * 1985-08-12 1987-02-17 Matsushita Electric Ind Co Ltd 自動焦点調節装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415424A1 (de) * 1983-05-24 1984-12-06 Asahi Kogaku Kogyo K.K., Tokio/Tokyo Fokuseinstellvorrichtung fuer eine kamera
DE3611784A1 (de) * 1985-06-20 1987-01-02 Olympus Optical Co Vorrichtung zum erzeugen von der entfernungseinstellung eines objektivs einer kamera entsprechenden signalen

Also Published As

Publication number Publication date
DE3801360A1 (de) 1988-07-28
US4851869A (en) 1989-07-25
DE3801360C3 (de) 1997-04-17

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8305 Restricted maintenance of patent after opposition
D4 Patent maintained restricted
8339 Ceased/non-payment of the annual fee