DE68926024D1 - Gerät zum Bewegen einer Objectivlinse mit einer viskoelastischen Substanz - Google Patents

Gerät zum Bewegen einer Objectivlinse mit einer viskoelastischen Substanz

Info

Publication number
DE68926024D1
DE68926024D1 DE68926024T DE68926024T DE68926024D1 DE 68926024 D1 DE68926024 D1 DE 68926024D1 DE 68926024 T DE68926024 T DE 68926024T DE 68926024 T DE68926024 T DE 68926024T DE 68926024 D1 DE68926024 D1 DE 68926024D1
Authority
DE
Germany
Prior art keywords
moving
objective lens
viscoelastic substance
viscoelastic
substance
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
DE68926024T
Other languages
English (en)
Other versions
DE68926024T2 (de
Inventor
Akihiro Intellectual Kasahara
Akira C O Intellectual Yamada
Takashi Intellectual Yoshizawa
Katsutoshi Intellectual P Wada
Hideo C O Intellectua Yamasaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE68926024D1 publication Critical patent/DE68926024D1/de
Publication of DE68926024T2 publication Critical patent/DE68926024T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0932—Details of sprung supports
DE68926024T 1988-12-01 1989-11-30 Gerät zum Bewegen einer Objectivlinse mit einer viskoelastischen Substanz Expired - Fee Related DE68926024T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30220388 1988-12-01

Publications (2)

Publication Number Publication Date
DE68926024D1 true DE68926024D1 (de) 1996-04-25
DE68926024T2 DE68926024T2 (de) 1996-08-22

Family

ID=17906183

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68926024T Expired - Fee Related DE68926024T2 (de) 1988-12-01 1989-11-30 Gerät zum Bewegen einer Objectivlinse mit einer viskoelastischen Substanz

Country Status (5)

Country Link
US (2) US5206762A (de)
EP (1) EP0371799B1 (de)
JP (1) JP2758234B2 (de)
KR (1) KR930005974B1 (de)
DE (1) DE68926024T2 (de)

Families Citing this family (34)

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US5206762A (en) * 1988-12-01 1993-04-27 Kabushiki Kaisha Toshiba Viscoelastic substance and objective lens driving apparatus with the same
US5182738A (en) * 1989-11-10 1993-01-26 Canon Kabushiki Kaisha Objective lens actuator using a balance weight therein
JP2757891B2 (ja) * 1989-11-10 1998-05-25 キヤノン株式会社 アクチュエータ
JPH04114142U (ja) * 1991-03-26 1992-10-07 株式会社コスモ計器 防振装置
DE4135908A1 (de) * 1991-10-31 1993-05-06 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen, De Aktuatoranordnung
JPH05258325A (ja) * 1992-01-13 1993-10-08 Sharp Corp 対物レンズ駆動装置
JPH05205283A (ja) * 1992-01-27 1993-08-13 Sharp Corp 光ピックアップの対物レンズ駆動装置
US5579176A (en) * 1993-04-30 1996-11-26 Olympus Optical Co., Ltd. Optical system supporting device with flowable damping material
JP2941647B2 (ja) * 1994-05-10 1999-08-25 富士写真光機株式会社 像安定光学装置
EP0735526B1 (de) * 1995-03-31 1998-05-20 Daewoo Electronics Co., Ltd Optisches Abtastgerät
JPH08273177A (ja) * 1995-03-31 1996-10-18 Olympus Optical Co Ltd 光学系駆動装置
JPH0954969A (ja) * 1995-08-11 1997-02-25 Minebea Co Ltd 対物レンズ支持装置
EP0784163B1 (de) * 1996-01-11 2002-07-03 Ford Motor Company Limited Magnetorheologisches Elastomer benutzende Buchse mit veränderlicher Steifigkeit
US5816587A (en) * 1996-07-23 1998-10-06 Ford Global Technologies, Inc. Method and apparatus for reducing brake shudder
JPH10154383A (ja) * 1996-11-21 1998-06-09 Olympus Optical Co Ltd 光学系駆動装置
US5814999A (en) * 1997-05-27 1998-09-29 Ford Global Technologies, Inc. Method and apparatus for measuring displacement and force
US5974856A (en) * 1997-05-27 1999-11-02 Ford Global Technologies, Inc. Method for allowing rapid evaluation of chassis elastomeric devices in motor vehicles
JP3819599B2 (ja) * 1998-08-05 2006-09-13 株式会社東芝 対物レンズ駆動装置の製造方法
JP3059141B2 (ja) * 1998-09-17 2000-07-04 三星電子株式会社 ピックアップアクチュエータ
KR100329918B1 (ko) * 1998-10-28 2002-09-04 삼성전자 주식회사 픽업엑추에이터
TW563875U (en) * 2000-10-24 2003-11-21 Discovision Ass Improved magnetic movable positioning device
JP4319797B2 (ja) * 2001-11-12 2009-08-26 三菱電機株式会社 対物レンズ駆動装置
US20050190662A1 (en) * 2002-04-15 2005-09-01 Rosmalen Gerard E. Read/write head for optical disk drive and optical disk drive comprising such a read/write head
US20060077867A1 (en) * 2004-10-08 2006-04-13 Innalabs Technologies, Inc. Use of magnetofluidics in component alignment and jitter compensation
JP4554330B2 (ja) * 2004-10-21 2010-09-29 株式会社リコー 高耐久性を有する断熱スタンパ構造
JP2006231459A (ja) * 2005-02-24 2006-09-07 Yuyama Manufacturing Co Ltd バイアル瓶搬送装置およびそのアーム
KR100671716B1 (ko) * 2005-06-04 2007-01-19 주식회사 하이소닉 소형 카메라장치
KR101804575B1 (ko) 2011-02-07 2017-12-04 엘지이노텍 주식회사 복합 기능 보이스 코일 모터
US9035502B2 (en) 2011-02-07 2015-05-19 Lg Innotek Co., Ltd. Multifunctional voice coil motor
KR101825746B1 (ko) 2011-06-01 2018-02-05 엘지이노텍 주식회사 복합 기능 보이스 코일 모터
JP6180304B2 (ja) * 2013-11-29 2017-08-16 オリンパス株式会社 撮像装置
JP7023047B2 (ja) * 2017-01-25 2022-02-21 日本電産コパル株式会社 電磁アクチュエータ
JP7108211B2 (ja) 2018-06-26 2022-07-28 ミツミ電機株式会社 回転往復駆動アクチュエータ
JP7140980B2 (ja) 2019-12-13 2022-09-22 ミツミ電機株式会社 回転往復駆動アクチュエーター

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US3538469A (en) * 1967-09-22 1970-11-03 Avco Corp Viscous damper using magnetic ferrofluid
US4023651A (en) * 1973-03-31 1977-05-17 The Production Engineering Research Association Damping vibrations in sheet material
US3817356A (en) * 1973-05-29 1974-06-18 Minnesota Mining & Mfg Vibration damping
DE2622654A1 (de) * 1975-05-22 1976-12-02 Eastman Kodak Co Verfahren zum extrusionsbeschichten eines bandfoermigen guts mit einem schichtstreifen sowie vorrichtung zum durchfuehren des verfahrens
JPS5570005A (en) * 1978-11-21 1980-05-27 Kobayashi Kogyo Kk Manufacture of permanent magnet
GB2052829B (en) * 1979-04-27 1983-01-12 Olympus Optical Co Apparatus for driving objective lens in tracking direction
US4592037A (en) * 1980-11-28 1986-05-27 Hitachi, Ltd. Device for displacing a pickup head in multi-axial directions
JPS57147143A (en) * 1981-03-07 1982-09-10 Olympus Optical Co Ltd Objective lens driving device
JPS589224A (ja) * 1981-07-07 1983-01-19 Olympus Optical Co Ltd 対物レンズ駆動装置
JPS6012825U (ja) * 1983-06-30 1985-01-28 パイオニア株式会社 電気機械変換器の支持機構
JPS60109037A (ja) * 1983-11-18 1985-06-14 Toshiba Corp 光ピツクアツプ用減衰装置
JPS60154084A (ja) * 1984-01-25 1985-08-13 Hitachi Ltd 印字ヘツド及びその組立方法
JPS61124038A (ja) * 1984-11-20 1986-06-11 Toshiba Corp 電磁偏向型ブラウン管用偏向ヨ−ク及びその製造方法
US4604229A (en) * 1985-03-20 1986-08-05 Ferrofluidics Corporation Electrically conductive ferrofluid compositions and method of preparing and using same
JPS61257180A (ja) * 1985-05-09 1986-11-14 Mitsubishi Heavy Ind Ltd 生体触媒の固定化及び回収方法
US4703470A (en) * 1985-08-15 1987-10-27 Priam (Delaware) Corporation Dynamic absorber device for use with disk drives
JPH0668843B2 (ja) * 1985-08-16 1994-08-31 ソニー株式会社 光学ピツクアツプ装置
JPS6245006A (ja) * 1985-08-22 1987-02-27 Sony Corp 強磁性粉末
JPS6242121U (de) * 1985-08-30 1987-03-13
DE3535906A1 (de) * 1985-10-08 1987-04-16 Metzeler Kautschuk Aktives zweikammer-motorlager
DE3540300A1 (de) * 1985-11-13 1987-05-21 Metzeler Kautschuk Luftfederelement
US4689163A (en) * 1986-02-24 1987-08-25 Matsushita Electric Industrial Co., Ltd. Resin-bonded magnet comprising a specific type of ferromagnetic powder dispersed in a specific type of resin binder
US4782475A (en) * 1986-12-22 1988-11-01 Eastman Kodak Company Flexure supported read head
DE3789099T2 (de) * 1986-12-26 1994-07-14 Toshiba Kawasaki Kk Steuerungsgerät für Objektivlinse.
JPS6442520U (de) * 1987-09-08 1989-03-14
US5206762A (en) * 1988-12-01 1993-04-27 Kabushiki Kaisha Toshiba Viscoelastic substance and objective lens driving apparatus with the same

Also Published As

Publication number Publication date
JP2758234B2 (ja) 1998-05-28
DE68926024T2 (de) 1996-08-22
EP0371799A1 (de) 1990-06-06
EP0371799B1 (de) 1996-03-20
KR930005974B1 (ko) 1993-06-30
US5337865A (en) 1994-08-16
US5206762A (en) 1993-04-27
KR900010671A (ko) 1990-07-09
JPH02263337A (ja) 1990-10-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee