JP4205556B2 - 振動低減のための光ピックアップアクチュエータ及び光ピックアップアクチュエータの安定化方法 - Google Patents
振動低減のための光ピックアップアクチュエータ及び光ピックアップアクチュエータの安定化方法 Download PDFInfo
- Publication number
- JP4205556B2 JP4205556B2 JP2003387189A JP2003387189A JP4205556B2 JP 4205556 B2 JP4205556 B2 JP 4205556B2 JP 2003387189 A JP2003387189 A JP 2003387189A JP 2003387189 A JP2003387189 A JP 2003387189A JP 4205556 B2 JP4205556 B2 JP 4205556B2
- Authority
- JP
- Japan
- Prior art keywords
- optical pickup
- bobbin
- pickup actuator
- magnet
- secondary resonance
- 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
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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
- G11B7/0935—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
- G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
-
- 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
- G11B7/0933—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
- G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
13 ホルダー
15 対物レンズ
17 ボビン
17a、17b ボビンの外側壁
18 貫通孔
20 第1磁石
23 第2磁石
25 第1ヨーク
27 第2ヨーク
30 第3磁石
33 第3ヨーク
35 ワイヤサスペンション
40 トラッキングコイル
43 フォーカシングコイル
45 チルトコイル
50 第1ダンピング部材
55 第2ダンピング部材
F フォーカシング方向
T トラッキング方向
t チルト方向
Claims (3)
- 対物レンズが搭載され、ワイヤサスペンションにより遊動可能に支持されたボビンを磁気駆動部によりフォーカシング方向、トラッキング方向またはチルト方向に駆動させる光ピックアップアクチュエータにおいて、
前記磁気駆動部は、前記ボビンの両側に各々備えられた第1磁石と、前記第1磁石に対向するようにボビンに巻回されたトラッキングコイルと、前記第1磁石と所定間隔離れて配置された第2磁石と、前記第1磁石と第2磁石との間に備えられ、且つ前記第2磁石に対向する前記ボビンの外側壁に巻回されたフォーカシングコイルと、を具備し、
前記フォーカシングコイルの中央部に第1ダンピング部材が挿入され、
前記ボビンの各コーナー部分に第2ダンピング部材が挿入され、
これにより前記ボビンのフォーカシング方向、トラッキング方向またはチルト方向駆動時の2次共振ピークを減少させることを特徴とする光ピックアップアクチュエータ。 - 前記第1ダンピング部材または第2ダンピング部材に金属材異種材質を混合したことを特徴とする請求項1に記載の光ピックアップアクチュエータ。
- 前記第1磁石が付着される第1ヨーク、前記第2磁石が付着される第2ヨーク及び第3磁石が付着される第3ヨークを含むことを特徴とする請求項1に記載の光ピックアップアクチュエータ。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0071040A KR100486280B1 (ko) | 2002-11-15 | 2002-11-15 | 진동 저감을 위한 광픽업 액츄에이터와 광픽업장치 및이를 채용한 광기록재생장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004171754A JP2004171754A (ja) | 2004-06-17 |
JP4205556B2 true JP4205556B2 (ja) | 2009-01-07 |
Family
ID=32291743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003387189A Expired - Fee Related JP4205556B2 (ja) | 2002-11-15 | 2003-11-17 | 振動低減のための光ピックアップアクチュエータ及び光ピックアップアクチュエータの安定化方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7458087B2 (ja) |
JP (1) | JP4205556B2 (ja) |
KR (1) | KR100486280B1 (ja) |
CN (2) | CN100334626C (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7535663B2 (en) | 2004-12-21 | 2009-05-19 | Ionosep X L.L.C. | Optical pickup actuator |
JP5067054B2 (ja) * | 2007-07-18 | 2012-11-07 | 株式会社Jvcケンウッド | 対物レンズ駆動装置 |
KR20190129463A (ko) * | 2018-05-11 | 2019-11-20 | 삼성전기주식회사 | 렌즈 조립체 |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
JP2981351B2 (ja) * | 1992-10-22 | 1999-11-22 | シャープ株式会社 | 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 |
US5777806A (en) * | 1993-04-30 | 1998-07-07 | Olympus Optical Co., Ltd. | Optical system supporting device with flowable damping material |
US5724337A (en) * | 1993-10-29 | 1998-03-03 | Tdk Corporation | Optical pickup with a compact design |
US6069867A (en) * | 1994-06-09 | 2000-05-30 | Olympus Optical Company, Ltd. | Apparatus for supporting optical system of optical information recording/reproducing apparatus and method of manufacturing the same |
DE4426930A1 (de) * | 1994-07-29 | 1996-02-01 | Schloemann Siemag Ag | Feinstahlwalzwerk, insbesondere Drahtwalzwerk |
KR200161144Y1 (en) | 1994-09-30 | 2000-03-15 | Victor Company Of Japan | Optical pick-up apparatus |
JPH08221789A (ja) | 1995-02-14 | 1996-08-30 | Matsushita Electric Ind Co Ltd | 光情報処理装置 |
JPH08273177A (ja) * | 1995-03-31 | 1996-10-18 | Olympus Optical Co Ltd | 光学系駆動装置 |
KR100238033B1 (ko) * | 1997-05-19 | 2000-02-01 | 윤종용 | 자성유체를 적용한 광픽업 액츄에이터 |
KR19990018711U (ko) * | 1997-11-13 | 1999-06-05 | 구자홍 | 광 디스크 드라이브용 광픽업 엑츄에이터 |
JP3711722B2 (ja) * | 1997-12-08 | 2005-11-02 | ソニー株式会社 | 光ピックアップ装置及び記録/再生装置 |
JPH11306570A (ja) * | 1998-04-20 | 1999-11-05 | Fujitsu Ltd | 対物レンズ駆動装置 |
US6163416A (en) * | 1998-04-24 | 2000-12-19 | Tdk Corporation | Objective lens driving device and manufacturing method thereof |
KR100329918B1 (ko) * | 1998-10-28 | 2002-09-04 | 삼성전자 주식회사 | 픽업엑추에이터 |
JP3390356B2 (ja) * | 1999-01-29 | 2003-03-24 | 日本電気株式会社 | 光学ピックアップ装置の二軸アクチュエータ |
JP2000268383A (ja) * | 1999-03-12 | 2000-09-29 | Sony Corp | 二軸アクチュエータ及びこれを利用した光学ピックアップ,光ディスク装置 |
US6510121B2 (en) * | 2000-03-29 | 2003-01-21 | Matsushita Electric Industrial Co., Ltd. | Objective lens driving device including a damping member which has an opening on a main surface to allow an optical axis of a lens to pass through, and optical pickup using the object lens driving device |
JP3683832B2 (ja) * | 2000-06-14 | 2005-08-17 | シャープ株式会社 | 光ディスク用対物レンズの傾斜補正方法、光ディスク用対物レンズ駆動装置、および光記録再生装置 |
JP2002050058A (ja) * | 2000-08-03 | 2002-02-15 | Matsushita Electric Ind Co Ltd | 光ピックアップ装置および光ディスク装置 |
JP3633491B2 (ja) * | 2001-02-05 | 2005-03-30 | ティアック株式会社 | 光ピックアップ装置 |
KR20020087185A (ko) * | 2001-05-14 | 2002-11-22 | 엘지전자 주식회사 | 렌즈 돌출형 광 픽업 액츄에이터 |
JP3675356B2 (ja) * | 2001-05-15 | 2005-07-27 | 日本電気株式会社 | 対物レンズ駆動装置 |
US6968563B2 (en) * | 2001-07-27 | 2005-11-22 | Kabushiki Kaisha Toshiba | Optical head |
JP3666453B2 (ja) * | 2001-12-21 | 2005-06-29 | 株式会社日立製作所 | 光ピックアップおよびこれを備えた光ディスク装置 |
KR20030080801A (ko) * | 2002-04-11 | 2003-10-17 | 삼성전기주식회사 | 3축 구동기능을 갖는 광픽업 액츄에이터 |
KR100540146B1 (ko) * | 2003-12-08 | 2006-01-12 | 엘지전자 주식회사 | 광 픽업 엑츄에이터 |
KR20050082602A (ko) * | 2004-02-19 | 2005-08-24 | 엘지전자 주식회사 | 복수의 렌즈가 구비된 광픽업 장치 |
-
2002
- 2002-11-15 KR KR10-2002-0071040A patent/KR100486280B1/ko not_active IP Right Cessation
-
2003
- 2003-11-14 US US10/706,949 patent/US7458087B2/en not_active Expired - Fee Related
- 2003-11-17 CN CNB2003101249403A patent/CN100334626C/zh not_active Expired - Fee Related
- 2003-11-17 CN CNA2007101278283A patent/CN101071587A/zh active Pending
- 2003-11-17 JP JP2003387189A patent/JP4205556B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101071587A (zh) | 2007-11-14 |
US7458087B2 (en) | 2008-11-25 |
JP2004171754A (ja) | 2004-06-17 |
KR20040043042A (ko) | 2004-05-22 |
CN1527295A (zh) | 2004-09-08 |
CN100334626C (zh) | 2007-08-29 |
KR100486280B1 (ko) | 2005-04-29 |
US20040098737A1 (en) | 2004-05-20 |
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