JPH02144128U - - Google Patents

Info

Publication number
JPH02144128U
JPH02144128U JP1989052591U JP5259189U JPH02144128U JP H02144128 U JPH02144128 U JP H02144128U JP 1989052591 U JP1989052591 U JP 1989052591U JP 5259189 U JP5259189 U JP 5259189U JP H02144128 U JPH02144128 U JP H02144128U
Authority
JP
Japan
Prior art keywords
optical component
component holder
attached
drive
gravity
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.)
Granted
Application number
JP1989052591U
Other languages
English (en)
Other versions
JPH0734495Y2 (ja
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 filed Critical
Priority to JP1989052591U priority Critical patent/JPH0734495Y2/ja
Priority to US07/472,540 priority patent/US5165088A/en
Publication of JPH02144128U publication Critical patent/JPH02144128U/ja
Application granted granted Critical
Publication of JPH0734495Y2 publication Critical patent/JPH0734495Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例の斜面図、第２図は
重心点に対する配置を示す側面図、第３図は従来
の光学式ピツクアツプの斜面図、第４図はその磁
気回路部の斜面図、第５図は重心点に対する配置
を示す側面図である。 １……マグネツト、２……ヨーク、４……対物
レンズ、５……ホルダ、６ａ，６ｂ……フオーカ
スコイル、７ａ，７ｂ……トラツキングコイル、
Ｇ……重心点。

Claims (1)

    【実用新案登録請求の範囲】
  1. 少くとも対物レンズが取付けられている光学部
    品ホルダの側面に取付けられ、磁気回路内に位置
    して光学部品ホルダを駆動するフオーカスコイル
    、トラツキングコイル等の一対の駆動用コイルを
    、左右のみならず、上下に対しても重心点に対し
    対称となるように、光学部品ホルダの両側面に配
    置したことを特徴とする光学式ピツクアツプ。
JP1989052591U 1989-05-09 1989-05-09 光学式ピックアップ Expired - Lifetime JPH0734495Y2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1989052591U JPH0734495Y2 (ja) 1989-05-09 1989-05-09 光学式ピックアップ
US07/472,540 US5165088A (en) 1989-05-09 1990-01-30 Optical pickup with bilateral and vertical symmetry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989052591U JPH0734495Y2 (ja) 1989-05-09 1989-05-09 光学式ピックアップ

Publications (2)

Publication Number Publication Date
JPH02144128U true JPH02144128U (ja) 1990-12-06
JPH0734495Y2 JPH0734495Y2 (ja) 1995-08-02

Family

ID=12919031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989052591U Expired - Lifetime JPH0734495Y2 (ja) 1989-05-09 1989-05-09 光学式ピックアップ

Country Status (2)

Country Link
US (1) US5165088A (ja)
JP (1) JPH0734495Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004504687A (ja) * 2000-07-19 2004-02-12 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 光走査デバイス及びこのような走査デバイスを含む光再生器

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6141300A (en) 1989-06-20 2000-10-31 Discovision Associates Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same
US5265079A (en) 1991-02-15 1993-11-23 Applied Magnetics Corporation Seek actuator for optical recording
US5729511A (en) 1991-02-15 1998-03-17 Discovision Associates Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal
US5677899A (en) 1991-02-15 1997-10-14 Discovision Associates Method for moving carriage assembly from initial position to target position relative to storage medium
US6236625B1 (en) 1991-02-15 2001-05-22 Discovision Associates Optical disc system having current monitoring circuit with controller for laser driver and method for operating same
US6069857A (en) 1991-02-15 2000-05-30 Discovision Associates Optical disc system having improved circuitry for performing blank sector check on readable disc
KR920022223A (ko) * 1991-05-13 1992-12-19 강진구 광학계 구동장치
US6434087B1 (en) 1995-01-25 2002-08-13 Discovision Associates Optical disc system and method for controlling bias coil and light source to process information on a storage medium
US5768037A (en) * 1995-10-06 1998-06-16 Eastman Kodak Company Actuator with single surface-field motor
JP2001229557A (ja) * 2000-02-09 2001-08-24 Pioneer Electronic Corp ディスクプレーヤのレンズ駆動装置及びディスクプレーヤのレンズ駆動装置用のプリント基板コイル
DE10008548A1 (de) * 2000-02-24 2001-08-30 Bosch Gmbh Robert Optischer Abtastkopf zum Lesen von auf einem Aufzeichnungsträger gespeicherten Daten
TWI269275B (en) * 2000-11-01 2006-12-21 Koninkl Philips Electronics Nv Optical scanning device comprising a tiltable lens system
US20030016597A1 (en) * 2001-07-18 2003-01-23 Takashi Haruguchi Actuator apparatus for optical pickup having tilt control
KR100486246B1 (ko) * 2002-02-26 2005-05-03 삼성전자주식회사 광픽업 액츄에이터 및 이를 채용한 광기록/재생 장치
JP2003346358A (ja) * 2002-05-27 2003-12-05 Pioneer Electronic Corp ピックアップ装置
JP4109018B2 (ja) * 2002-05-27 2008-06-25 パイオニア株式会社 アクチュエータ
JP2004110985A (ja) * 2002-09-20 2004-04-08 Pioneer Electronic Corp アクチュエータ及び光ピックアップ装置
EP1587084A1 (de) * 2004-04-15 2005-10-19 Deutsche Thomson-Brandt Gmbh Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger
TWI322424B (en) * 2005-12-27 2010-03-21 Ind Tech Res Inst Objective lens deiving apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4696566A (en) * 1984-02-08 1987-09-29 Sharp Kabushiki Kaisha Three-dimensional driving arrangement
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
EP0228055B1 (en) * 1985-12-27 1992-03-04 Mitsubishi Denki Kabushiki Kaisha Driving equipment for objective lens
US4998802A (en) * 1988-06-03 1991-03-12 Kabushiki Kaisha Sankyo Seiki Seisakusho Objective lens driving device in an optical pickup

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004504687A (ja) * 2000-07-19 2004-02-12 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 光走査デバイス及びこのような走査デバイスを含む光再生器

Also Published As

Publication number Publication date
US5165088A (en) 1992-11-17
JPH0734495Y2 (ja) 1995-08-02

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term