JP2005100633A - 光ピックアップアンローディング方法 - Google Patents
光ピックアップアンローディング方法 Download PDFInfo
- Publication number
- JP2005100633A JP2005100633A JP2004327093A JP2004327093A JP2005100633A JP 2005100633 A JP2005100633 A JP 2005100633A JP 2004327093 A JP2004327093 A JP 2004327093A JP 2004327093 A JP2004327093 A JP 2004327093A JP 2005100633 A JP2005100633 A JP 2005100633A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- optical head
- optical pickup
- unloading
- head unit
- 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
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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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
- G11B21/20—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier
- G11B21/21—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier with provision for maintaining desired spacing of head from record carrier, e.g. fluid-dynamic spacing, slider
-
- 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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in only
-
- 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
- G11B7/0925—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
- G11B7/0946—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 operation during external perturbations not related to the carrier or servo beam, e.g. vibration
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording
-
- 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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
【解決手段】 本発明は、外部衝撃から光ディスクと光ピックアップの光ヘッド部を保護するための光ピックアップアンローディング方法において、光ピックアップに対する外部衝撃が所定基準値より大きいかを測定する段階と;外部衝撃が所定基準値より大きい場合、前記光ヘッド部をアンローディング方向に下降されるように駆動させるために前記光ピックアップのフォーカシングコイルに所定方向に電流を供給する段階と;前記光ディスクより所定間隔離隔させ前記光ヘッド部を位置固定させる段階;を含むことを特徴とする。
【選択図】 図1
Description
11 ミラー
13 底部
13a 通過孔
15 側壁部
16 電子回路部
20 光ヘッド部
21 対物レンズ
23 スライダー
25 フレクシャー
25a 支持部
25b 定着部
27 コイルボビン
27a フレーム部
30 ワイヤーサスペンション
40 駆動手段
45、47 マグネット
50 ラッチング手段
Claims (5)
- 外部衝撃から光ディスクと光ピックアップの光ヘッド部を保護するための光ピックアップアンローディング方法において、光ピックアップに対する外部衝撃が所定基準値より大きいかを測定する段階と;外部衝撃が所定基準値より大きい場合、前記光ヘッド部をアンローディング方向に下降されるように駆動させるために前記光ピックアップのフォーカシングコイルに所定方向に電流を供給する段階と;前記光ディスクより所定間隔離隔させ前記光ヘッド部を位置固定させる段階;を含むことを特徴とする光ピックアップアンローディング方法。
- 前記外部衝撃は前記光ピックアップにおいてベース部材と光ヘッド部及びスピンドルモーター中少なくともいずれかに影響を及ぼすことを特徴とする請求項1に記載の光ピックアップアンローディング方法。
- 外部衝撃から光ディスクと光ピックアップの光ヘッド部を保護するための光ピックアップアンローディング方法において、前記光ピックアップでの外部衝撃が所定基準値より大きいかを測定する段階と;前記外部衝撃の測定値に対する応答で前記光ピックアップのスピンドルモーターへの電源供給を中止して、前記スピンドルモーターはそのスピンドルモーターが止まる際までの誘導電圧を発生させる段階;前記発生された誘導電圧をアンローディングフォースとして前記光ヘッド部に供給する段階と;前記光ヘッド部をアンローディング方向ELO下降させる段階と;前記光ヘッド部を前記光ディスクより所定間隔離隔させ位置固定させる段階;を含むことを特徴とする光ピックアップアンローディング方法。
- 前記外部衝撃は前記光ピックアップに作られたベース部材と光ヘッド部及びスピンドルモーター中少なくともいずれかに影響を及ぼすことを特徴とする請求項3に記載の光ピックアップアンローディング方法。
- 外部衝撃からディスクカートリッジと光ピックアップの光ヘッド部を保護するための光ヘッドにアンローディング方法において、前記ディスクカートリッジを結合または分離する段階と;前記光ピックアップでの外部衝撃が所定基準値より大きいかを測定する段階と;前記外部衝撃の測定値段が所定基準値より大きい場合、前記光ヘッド部がアンローディング方向に下降されるように駆動させるための前記光ピックアップに作られたフォーカシングコイルに所定方向に電流を供給する段階と;前記ディスクカートリッジから所定間隔離隔させ前記光ヘッド部を位置固定させる段階;を含むことを特徴とする光ピックアップアンローディング方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0077673A KR100412479B1 (ko) | 2000-12-18 | 2000-12-18 | 광디스크 드라이브의 광픽업장치 및 광픽업 구동방법 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001363394A Division JP3756108B2 (ja) | 2000-12-18 | 2001-11-28 | 光ディスクドライブの光ピックアップ装置及び光ピックアップ駆動方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005100633A true JP2005100633A (ja) | 2005-04-14 |
JP4185039B2 JP4185039B2 (ja) | 2008-11-19 |
Family
ID=36912537
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001363394A Expired - Fee Related JP3756108B2 (ja) | 2000-12-18 | 2001-11-28 | 光ディスクドライブの光ピックアップ装置及び光ピックアップ駆動方法 |
JP2004327092A Expired - Fee Related JP4018685B2 (ja) | 2000-12-18 | 2004-11-10 | 光ピックアップ駆動方法 |
JP2004327093A Expired - Fee Related JP4185039B2 (ja) | 2000-12-18 | 2004-11-10 | 光ピックアップアンローディング方法 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001363394A Expired - Fee Related JP3756108B2 (ja) | 2000-12-18 | 2001-11-28 | 光ディスクドライブの光ピックアップ装置及び光ピックアップ駆動方法 |
JP2004327092A Expired - Fee Related JP4018685B2 (ja) | 2000-12-18 | 2004-11-10 | 光ピックアップ駆動方法 |
Country Status (3)
Country | Link |
---|---|
US (2) | US7062774B2 (ja) |
JP (3) | JP3756108B2 (ja) |
KR (1) | KR100412479B1 (ja) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6937907B2 (en) * | 2000-09-18 | 2005-08-30 | Cameron Health, Inc. | Subcutaneous electrode for transthoracic conduction with low-profile installation appendage and method of doing same |
KR100412479B1 (ko) * | 2000-12-18 | 2003-12-31 | 삼성전자주식회사 | 광디스크 드라이브의 광픽업장치 및 광픽업 구동방법 |
KR100472477B1 (ko) | 2002-09-02 | 2005-03-10 | 삼성전자주식회사 | 광픽업 액추에이터와 이를 채용한 광픽업장치 및, 이를채용한 광디스크 드라이브 장치 |
GB0310927D0 (en) * | 2003-05-13 | 2003-06-18 | Koninkl Philips Electronics Nv | Optical pick-up unit |
US20070076539A1 (en) * | 2003-11-21 | 2007-04-05 | Koninklijke Philips Electronics N.V. | Pickup unit and disk drive unit provided with such a pickup unit |
EP1701344A1 (en) * | 2003-12-03 | 2006-09-13 | Matsushita Electric Industrial Co., Ltd. | Optical disk device |
WO2005055215A1 (ja) * | 2003-12-03 | 2005-06-16 | Matsushita Electric Industrial Co., Ltd. | 光ディスク駆動装置 |
JP4166715B2 (ja) * | 2004-02-25 | 2008-10-15 | 株式会社リコー | 対物レンズ駆動装置,光ピックアップ装置および光ディスク装置 |
JP3953054B2 (ja) * | 2004-06-21 | 2007-08-01 | 船井電機株式会社 | ディスク装置 |
JP2006066016A (ja) * | 2004-08-30 | 2006-03-09 | Mitsumi Electric Co Ltd | 対物レンズ駆動装置 |
JP2006079783A (ja) * | 2004-09-13 | 2006-03-23 | Sony Corp | ディスクドライブ装置、対物レンズ制御方法 |
EP1729294A1 (en) * | 2005-05-30 | 2006-12-06 | Deutsche Thomson-Brandt Gmbh | Compact pickup for micro optical drive |
EP1886309B1 (en) * | 2005-05-30 | 2009-01-21 | Thomson Licensing | Compact pickup for micro optical drive |
US9135932B2 (en) | 2007-01-17 | 2015-09-15 | Seagate Technology Llc | Integrated head for heat assisted magnetic recording |
EP2248125A4 (en) * | 2008-02-04 | 2013-03-27 | Panasonic Automotive Sys Co Am | METHOD AND APPARATUS FOR VIBRATION DAMPING OF A SUSPENDED MULTIMEDIA PLAYBACK / WRITE HEAD |
KR101275388B1 (ko) * | 2010-04-14 | 2013-06-14 | 삼성전기주식회사 | 광포인팅 모듈 및 전자 장치 |
JP5547606B2 (ja) * | 2010-10-22 | 2014-07-16 | クラリオン株式会社 | 光学ピックアップ装置 |
US8604663B2 (en) | 2010-11-15 | 2013-12-10 | DigitalOptics Corporation MEMS | Motion controlled actuator |
US8608393B2 (en) * | 2010-11-15 | 2013-12-17 | DigitalOptics Corporation MEMS | Capillary actuator deployment |
US8337103B2 (en) * | 2010-11-15 | 2012-12-25 | DigitalOptics Corporation MEMS | Long hinge actuator snubbing |
GB201213537D0 (en) * | 2012-07-30 | 2012-09-12 | Imp Innovations Ltd | Self-limiting injection assembly for sample introduction in HPLC |
CN114084767B (zh) * | 2021-11-18 | 2022-09-13 | 浙江大学 | 基于钢丝绳卸载和变阻力减震结构的电梯缓冲监测装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63152070A (ja) * | 1986-12-16 | 1988-06-24 | Canon Inc | 記録又は再生装置 |
JPS63183668A (ja) * | 1987-01-23 | 1988-07-29 | Pioneer Electronic Corp | 情報記録デイスクプレ−ヤの保護装置 |
JPH0798875A (ja) * | 1993-09-30 | 1995-04-11 | Ricoh Co Ltd | 対物レンズ駆動装置 |
JPH07210845A (ja) * | 1993-12-21 | 1995-08-11 | Internatl Business Mach Corp <Ibm> | ロード/アンロード装置及びディスク駆動装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5293363A (en) * | 1989-10-13 | 1994-03-08 | Mitsubishi Denki Kabushiki Kaisha | Optical head apparatus with light weight movable lens holder |
JPH0945022A (ja) * | 1995-08-01 | 1997-02-14 | Sharp Corp | 情報記録再生装置のモータ制御装置 |
US6594102B1 (en) * | 1998-07-01 | 2003-07-15 | Kabushiki Kaisha Toshiba | Apparatus and method for retracting the head on power down in a disk drive |
KR100314092B1 (ko) * | 1999-03-25 | 2001-11-15 | 윤종용 | 부상형 광 헤드 어셈블리 |
KR100412479B1 (ko) * | 2000-12-18 | 2003-12-31 | 삼성전자주식회사 | 광디스크 드라이브의 광픽업장치 및 광픽업 구동방법 |
JP3826901B2 (ja) * | 2003-06-04 | 2006-09-27 | 船井電機株式会社 | 光ディスク装置 |
-
2000
- 2000-12-18 KR KR10-2000-0077673A patent/KR100412479B1/ko not_active IP Right Cessation
-
2001
- 2001-11-02 US US09/985,249 patent/US7062774B2/en not_active Expired - Fee Related
- 2001-11-28 JP JP2001363394A patent/JP3756108B2/ja not_active Expired - Fee Related
-
2004
- 2004-11-10 JP JP2004327092A patent/JP4018685B2/ja not_active Expired - Fee Related
- 2004-11-10 JP JP2004327093A patent/JP4185039B2/ja not_active Expired - Fee Related
-
2006
- 2006-04-21 US US11/408,008 patent/US20060187772A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63152070A (ja) * | 1986-12-16 | 1988-06-24 | Canon Inc | 記録又は再生装置 |
JPS63183668A (ja) * | 1987-01-23 | 1988-07-29 | Pioneer Electronic Corp | 情報記録デイスクプレ−ヤの保護装置 |
JPH0798875A (ja) * | 1993-09-30 | 1995-04-11 | Ricoh Co Ltd | 対物レンズ駆動装置 |
JPH07210845A (ja) * | 1993-12-21 | 1995-08-11 | Internatl Business Mach Corp <Ibm> | ロード/アンロード装置及びディスク駆動装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4185039B2 (ja) | 2008-11-19 |
US20020075773A1 (en) | 2002-06-20 |
JP3756108B2 (ja) | 2006-03-15 |
JP2002208146A (ja) | 2002-07-26 |
KR20020048241A (ko) | 2002-06-22 |
US7062774B2 (en) | 2006-06-13 |
JP2005093070A (ja) | 2005-04-07 |
KR100412479B1 (ko) | 2003-12-31 |
US20060187772A1 (en) | 2006-08-24 |
JP4018685B2 (ja) | 2007-12-05 |
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