SG98365A1 - Lens driving device, optical head and optical disc system - Google Patents
Lens driving device, optical head and optical disc systemInfo
- Publication number
- SG98365A1 SG98365A1 SG9803819A SG1998003819A SG98365A1 SG 98365 A1 SG98365 A1 SG 98365A1 SG 9803819 A SG9803819 A SG 9803819A SG 1998003819 A SG1998003819 A SG 1998003819A SG 98365 A1 SG98365 A1 SG 98365A1
- Authority
- SG
- Singapore
- Prior art keywords
- driving device
- lens driving
- disc system
- optical
- optical disc
- Prior art date
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
- G11B7/12—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
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
- G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
- G11B7/13927—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means during transducing, e.g. to correct for variation of the spherical aberration due to disc tilt or irregularities in the cover layer thickness
-
- 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
- G11B7/0927—Electromechanical actuators for lens positioning for focusing 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
- G11B7/0941—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
- G11B7/12—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
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
-
- 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
- G11B7/1372—Lenses
- G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
-
- 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
- G11B7/1372—Lenses
- G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing
-
- 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
- G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9267488A JPH11110794A (ja) | 1997-09-30 | 1997-09-30 | レンズ駆動装置及び光学ヘッド |
Publications (1)
Publication Number | Publication Date |
---|---|
SG98365A1 true SG98365A1 (en) | 2003-09-19 |
Family
ID=17445555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG9803819A SG98365A1 (en) | 1997-09-30 | 1998-09-24 | Lens driving device, optical head and optical disc system |
Country Status (6)
Country | Link |
---|---|
US (1) | US6414931B1 (ko) |
JP (1) | JPH11110794A (ko) |
KR (1) | KR100520470B1 (ko) |
CN (1) | CN1184624C (ko) |
MY (1) | MY120346A (ko) |
SG (1) | SG98365A1 (ko) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010071727A (ko) * | 1999-05-07 | 2001-07-31 | 요트.게.아. 롤페즈 | 굴곡된 액추에이터 코일을 구비한 광학 주사장치 |
KR100334920B1 (ko) * | 1999-05-10 | 2002-05-04 | 마찌다 가쯔히꼬 | 광 기록/재생 장치 |
JP2000322757A (ja) | 1999-05-12 | 2000-11-24 | Sharp Corp | 光記録再生装置 |
JP2001006192A (ja) * | 1999-06-18 | 2001-01-12 | Sharp Corp | 光学ピックアップ用対物レンズ装置 |
JP2001126305A (ja) * | 1999-10-29 | 2001-05-11 | Fujitsu Ltd | 光ディスク装置およびそのレンズ調整方法 |
JP3643030B2 (ja) | 2000-12-05 | 2005-04-27 | シャープ株式会社 | 光ピックアップ装置 |
US6968563B2 (en) | 2001-07-27 | 2005-11-22 | Kabushiki Kaisha Toshiba | Optical head |
JP4373036B2 (ja) * | 2001-08-31 | 2009-11-25 | パイオニア株式会社 | 光ピックアップ |
WO2005066945A1 (en) * | 2004-01-12 | 2005-07-21 | Mempile Inc. | Lens actuator assembly for optical head |
CN100529820C (zh) * | 2004-12-17 | 2009-08-19 | 鸿富锦精密工业(深圳)有限公司 | 镜头模组及具有该镜头模组的数码相机模组 |
JP2006318565A (ja) * | 2005-05-12 | 2006-11-24 | Konica Minolta Opto Inc | 光ピックアップ装置 |
JP2006350092A (ja) * | 2005-06-17 | 2006-12-28 | Sony Corp | 移動機構及びこれを備えた撮像装置 |
JP4765457B2 (ja) * | 2005-07-21 | 2011-09-07 | ソニー株式会社 | レンズ駆動装置及びカメラ付き携帯電話 |
CN100412593C (zh) * | 2006-01-18 | 2008-08-20 | 华硕电脑股份有限公司 | 镜头模块及应用所述模块的电子装置 |
JP2009536370A (ja) * | 2006-05-05 | 2009-10-08 | コーニング インコーポレイテッド | 擬テレセントリック結像レンズの歪調整 |
CN101620306B (zh) * | 2008-06-30 | 2012-07-18 | 鸿富锦精密工业(深圳)有限公司 | 便携式电子装置 |
US7689076B1 (en) * | 2009-02-20 | 2010-03-30 | The Boeing Company | Optical communications system and method for optimizing an optical communications system |
KR101664352B1 (ko) * | 2009-09-09 | 2016-10-10 | 엘지이노텍 주식회사 | Vcm 엑추에이터를 이용한 자동 초점조절방법 |
KR101164755B1 (ko) * | 2010-11-02 | 2012-07-12 | 엘지이노텍 주식회사 | 보이스 코일 모터 및 이의 구동 방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5473471A (en) * | 1993-04-16 | 1995-12-05 | Matsushita Electric Industrial Co., Ltd. | Complex lens with diffraction grating |
JPH09138343A (ja) * | 1995-11-14 | 1997-05-27 | Mark:Kk | ディスク基板厚み可変の対物レンズ系 |
JPH09251645A (ja) * | 1996-03-15 | 1997-09-22 | Sony Corp | 記録媒体記録再生装置および記録媒体記録再生方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100200837B1 (ko) * | 1995-01-24 | 1999-06-15 | 윤종용 | 다층 기록막을 갖는 광디스크를 위한 광픽업 |
JP3567515B2 (ja) | 1995-02-15 | 2004-09-22 | ソニー株式会社 | 光学ピックアップ装置 |
KR0147628B1 (ko) * | 1995-04-13 | 1998-10-15 | 김광호 | 다층 기록막을 갖는 광디스크용 광픽업 장치 |
JPH08315404A (ja) | 1995-05-18 | 1996-11-29 | Sony Corp | 光学ピックアップ装置 |
KR0137245B1 (ko) * | 1995-05-31 | 1998-05-15 | 배순훈 | 듀얼포커스법에 사용되는 광학헤드 위치 조절장치(an optical head position adjusting device using at the method of dual focus) |
JP3284056B2 (ja) | 1995-09-12 | 2002-05-20 | 株式会社東芝 | 基板処理装置及びパターン形成方法 |
US5818643A (en) | 1995-11-14 | 1998-10-06 | Mahk Co., Ltd. | Optical objective lens system with variable disk thickness feature |
US5729393A (en) * | 1996-04-03 | 1998-03-17 | Digital Papyrus Corporation | Optical flying head with solid immersion lens having raised central surface facing medium |
-
1997
- 1997-09-30 JP JP9267488A patent/JPH11110794A/ja not_active Withdrawn
-
1998
- 1998-09-24 US US09/159,778 patent/US6414931B1/en not_active Expired - Fee Related
- 1998-09-24 SG SG9803819A patent/SG98365A1/en unknown
- 1998-09-26 MY MYPI98004445A patent/MY120346A/en unknown
- 1998-09-30 KR KR1019980041303A patent/KR100520470B1/ko not_active IP Right Cessation
- 1998-09-30 CN CNB981226159A patent/CN1184624C/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5473471A (en) * | 1993-04-16 | 1995-12-05 | Matsushita Electric Industrial Co., Ltd. | Complex lens with diffraction grating |
JPH09138343A (ja) * | 1995-11-14 | 1997-05-27 | Mark:Kk | ディスク基板厚み可変の対物レンズ系 |
JPH09251645A (ja) * | 1996-03-15 | 1997-09-22 | Sony Corp | 記録媒体記録再生装置および記録媒体記録再生方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1184624C (zh) | 2005-01-12 |
JPH11110794A (ja) | 1999-04-23 |
KR19990030326A (ko) | 1999-04-26 |
US6414931B1 (en) | 2002-07-02 |
KR100520470B1 (ko) | 2006-01-27 |
MY120346A (en) | 2005-10-31 |
CN1223432A (zh) | 1999-07-21 |
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