TW239211B - Electromagnetic lens actuator for optical disk drive - Google Patents

Electromagnetic lens actuator for optical disk drive

Info

Publication number
TW239211B
TW239211B TW082108890A TW82108890A TW239211B TW 239211 B TW239211 B TW 239211B TW 082108890 A TW082108890 A TW 082108890A TW 82108890 A TW82108890 A TW 82108890A TW 239211 B TW239211 B TW 239211B
Authority
TW
Taiwan
Prior art keywords
housing
magnetic field
lens unit
optical disk
disk drive
Prior art date
Application number
TW082108890A
Other languages
English (en)
Inventor
J Mccaslin Martin
Johnson Brad
Original Assignee
Hyundai Electronics America
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 Hyundai Electronics America filed Critical Hyundai Electronics America
Application granted granted Critical
Publication of TW239211B publication Critical patent/TW239211B/zh

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
    • 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
    • G11B7/0933—Details of stationary parts
    • 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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0935—Details of the moving parts

Landscapes

  • Optical Recording Or Reproduction (AREA)
TW082108890A 1993-04-02 1993-10-26 Electromagnetic lens actuator for optical disk drive TW239211B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4233293A 1993-04-02 1993-04-02

Publications (1)

Publication Number Publication Date
TW239211B true TW239211B (en) 1995-01-21

Family

ID=21921295

Family Applications (1)

Application Number Title Priority Date Filing Date
TW082108890A TW239211B (en) 1993-04-02 1993-10-26 Electromagnetic lens actuator for optical disk drive

Country Status (4)

Country Link
US (1) US5442606A (zh)
JP (1) JP3061521B2 (zh)
KR (1) KR970005353B1 (zh)
TW (1) TW239211B (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5870373A (en) * 1994-10-04 1999-02-09 Lg Electronics Inc. Optical pick-up driving apparatus
WO2000030082A1 (fr) * 1998-11-17 2000-05-25 Fujitsu Limited Support optique
DE60029901T2 (de) * 1999-10-15 2006-12-21 Pioneer Corporation Linsenantriebsvorrichtung
WO2002007158A1 (en) * 2000-07-19 2002-01-24 Koninklijke Philips Electronics N.V. Optical scanning device and optical player comprising such a scanning device
EP1587084A1 (de) * 2004-04-15 2005-10-19 Deutsche Thomson-Brandt Gmbh Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger
TWI350168B (en) * 2004-05-07 2011-10-11 Incyte Corp Amido compounds and their use as pharmaceuticals
JP3788473B1 (ja) * 2005-01-05 2006-06-21 三菱電機株式会社 対物レンズ駆動装置ならびに光ヘッド
EP1724766A1 (en) * 2005-05-18 2006-11-22 Deutsche Thomson-Brandt Gmbh Pickup for optical recording media and device having the pickup
EP1742208A1 (en) * 2005-06-29 2007-01-10 Deutsche Thomson-Brandt Gmbh Pickup for optical recording media and device having the pickup
TWI412026B (zh) 2010-05-06 2013-10-11 Univ Nat Chiao Tung 感測裝置
US9431887B2 (en) * 2014-06-06 2016-08-30 Align Technology, Inc. Lens positioning system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4809247A (en) * 1972-10-24 1989-02-28 Discovision Associates Video disc head tracking apparatus
US4451913A (en) * 1972-10-24 1984-05-29 Discovision Associates Video disc read back scanner
US4016504A (en) * 1976-04-12 1977-04-05 Molectron Corporation Optical beam expander for dye laser
NL8001617A (nl) * 1980-03-19 1981-10-16 Philips Nv Inrichting voor het elektrodynamisch bestuurbaar zwenken van een optisch element.
US4422169A (en) * 1980-10-20 1983-12-20 Discovision Associates Lens assembly for a video recorder-playback machine
US4368957A (en) * 1980-10-31 1983-01-18 Discovision Associates Wide aperture objective lens
US4774699A (en) * 1981-12-21 1988-09-27 Discovision Associates Method and apparatus for positioning a read head to a selected track on a record disc
US4568142A (en) * 1982-04-26 1986-02-04 Hitachi, Ltd. Objective lens drive apparatus
EP0099123B1 (en) * 1982-07-15 1990-11-28 Matsushita Electric Industrial Co., Ltd. Optical recording and reproducing head
US4702569A (en) * 1982-09-20 1987-10-27 Lockheed Missiles & Space Company, Inc. Color-corrected Petzval lens systems
US4761064A (en) * 1982-09-20 1988-08-02 Lockheed Missiles & Space Company, Inc. Color-corrected lens systems
US4704008A (en) * 1982-09-20 1987-11-03 Lockheed Missiles And Space Company, Inc. Color-corrected prism systems
EP0144445B1 (en) * 1983-05-31 1988-03-09 Matsushita Electric Industrial Co., Ltd. Apparatus for driving objective lens of optical disc player
JPS60124035A (ja) * 1983-12-07 1985-07-02 Canon Inc 光ヘッド装置
US4633456A (en) * 1984-01-23 1986-12-30 International Business Machines Corporation Two axis electromagnetic actuator
US4770507A (en) * 1984-03-09 1988-09-13 Hitachi, Ltd. Prism optics and optical information processing apparatus
JPS60226031A (ja) * 1984-04-23 1985-11-11 Sankyo Seiki Mfg Co Ltd 対物レンズ駆動装置
US4734906A (en) * 1984-07-06 1988-03-29 Storage Technology Partners 11 Optical disk recording and readout system having read, write and coarse light beams
NL8402777A (nl) * 1984-09-12 1986-04-01 Philips Nv Lensdrager ten behoeve van een electrodynamische inrichting voor het met een stralingsvlek inschrijven en/of aftasten van optische platen, alsmede een werkwijze voor het vervaardigen van een lensdrager.
JPS6185640A (ja) * 1984-10-02 1986-05-01 Toshiba Corp 光学ヘツド装置
NL8403052A (nl) * 1984-10-08 1986-05-01 Philips Nv Optische inrichting.
US4742218A (en) * 1985-03-11 1988-05-03 Hitachi, Ltd. Focus error detection apparatus utilizing focusing an front and rear sides of focal planes
JPS62287444A (ja) * 1986-06-06 1987-12-14 Pioneer Electronic Corp レンズ駆動装置
US4799210A (en) * 1986-11-05 1989-01-17 Unisys Corporation Fiber optic read/write head for an optical disk memory system
US4789977A (en) * 1986-11-06 1988-12-06 Laser Magnetic Storage International Company Optical data recording device
JP2637415B2 (ja) * 1987-03-03 1997-08-06 オリンパス光学工業株式会社 光磁気記録再生装置
US4891799A (en) * 1987-03-13 1990-01-02 Fuji Electrochemical Co., Ltd. Optical head apparatus for writing and reading data on an optical disk having a lens with an inclined optical axis
US5136558A (en) * 1989-06-20 1992-08-04 Applied Magnetics Corporation Two axis electromagnetic actuator

Also Published As

Publication number Publication date
KR970005353B1 (ko) 1997-04-15
US5442606A (en) 1995-08-15
JP3061521B2 (ja) 2000-07-10
JPH076389A (ja) 1995-01-10
KR940024695A (ko) 1994-11-18

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