CN1932983A - 光盘装置 - Google Patents
光盘装置 Download PDFInfo
- Publication number
- CN1932983A CN1932983A CNA2006101106579A CN200610110657A CN1932983A CN 1932983 A CN1932983 A CN 1932983A CN A2006101106579 A CNA2006101106579 A CN A2006101106579A CN 200610110657 A CN200610110657 A CN 200610110657A CN 1932983 A CN1932983 A CN 1932983A
- Authority
- CN
- China
- Prior art keywords
- action
- aberration correcting
- correcting part
- control
- optical disc
- 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
Links
Images
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
- G11B7/1372—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
- G11B7/08—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
- G11B7/12—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
-
- 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
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
- G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
Description
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005267860A JP2007080402A (ja) | 2005-09-15 | 2005-09-15 | 光ディスク装置 |
JP2005267860 | 2005-09-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1932983A true CN1932983A (zh) | 2007-03-21 |
CN100444249C CN100444249C (zh) | 2008-12-17 |
Family
ID=37878772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2006101106579A Expired - Fee Related CN100444249C (zh) | 2005-09-15 | 2006-08-07 | 光盘装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7933175B2 (zh) |
JP (1) | JP2007080402A (zh) |
CN (1) | CN100444249C (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4969142B2 (ja) * | 2006-04-27 | 2012-07-04 | 株式会社日立製作所 | 光ディスク装置及びその駆動方法 |
US20100034061A1 (en) * | 2008-08-11 | 2010-02-11 | Chih-Ching Yu | Optical storage apparatus and control chip for accessing an optical disc and method thereof |
JP2010118093A (ja) * | 2008-11-11 | 2010-05-27 | Funai Electric Co Ltd | 光ディスク装置 |
JP5358475B2 (ja) * | 2010-02-15 | 2013-12-04 | 日立コンシューマエレクトロニクス株式会社 | 光ディスク装置およびフォーカス制御方法 |
US8385178B2 (en) * | 2010-12-23 | 2013-02-26 | General Electric Company | Multi-stage focus actuator and optical head |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2644720B2 (ja) * | 1985-02-25 | 1997-08-25 | 株式会社日立製作所 | トラック引込み方法 |
TW453493U (en) * | 1996-02-13 | 2001-09-01 | Tokyo Shibaura Electric Co | Reproducing device of optical disk |
JP2001266392A (ja) * | 2000-03-23 | 2001-09-28 | Pioneer Electronic Corp | 光学式情報記録再生装置 |
TW564404B (en) * | 2000-09-06 | 2003-12-01 | Matsushita Electric Ind Co Ltd | Optical disk unit and information recording and reproducing method |
JP4217395B2 (ja) | 2000-09-06 | 2009-01-28 | パナソニック株式会社 | 光ディスク装置及び多層光ディスクの記録再生方法 |
US6967916B2 (en) * | 2000-10-10 | 2005-11-22 | Matsushita Electric Industrial Co., Ltd. | Optical head apparatus, optical information recording and reproducing apparatus, method for detecting aberration and method for adjusting optical head apparatus |
JP2002304750A (ja) | 2001-04-09 | 2002-10-18 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
JP2002334476A (ja) | 2001-05-14 | 2002-11-22 | Konica Corp | 光ピックアップ装置及び記録・再生装置 |
JP4788071B2 (ja) | 2001-06-29 | 2011-10-05 | ソニー株式会社 | 光ピックアップ及び記録/再生装置 |
KR20040012724A (ko) * | 2001-07-05 | 2004-02-11 | 마츠시타 덴끼 산교 가부시키가이샤 | 광 디스크 장치 |
KR20030084756A (ko) * | 2002-04-26 | 2003-11-01 | 마츠시타 덴끼 산교 가부시키가이샤 | 광디스크 장치, 빔 스폿의 이동 방법 및 광디스크 장치에있어서 실행 가능한 컴퓨터 프로그램 |
JP2004326936A (ja) * | 2003-04-25 | 2004-11-18 | Hitachi Ltd | 光ディスク装置 |
CN100452190C (zh) * | 2004-04-23 | 2009-01-14 | 松下电器产业株式会社 | 对焦检测机构、跟踪检测机构以及光盘装置 |
US20080285408A1 (en) * | 2004-06-24 | 2008-11-20 | Matsushita Electric Industrial Co., Ltd. | Optical Disk Device and Optical Disk Semiconductor |
-
2005
- 2005-09-15 JP JP2005267860A patent/JP2007080402A/ja active Pending
-
2006
- 2006-07-19 US US11/488,616 patent/US7933175B2/en not_active Expired - Fee Related
- 2006-08-07 CN CNB2006101106579A patent/CN100444249C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2007080402A (ja) | 2007-03-29 |
CN100444249C (zh) | 2008-12-17 |
US20070177469A1 (en) | 2007-08-02 |
US7933175B2 (en) | 2011-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: HITACHI LTD. Free format text: FORMER OWNER: HITACHI,LTD. Effective date: 20140116 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20140116 Address after: Tokyo, Japan Patentee after: Hitachi Consumer Electronics Co.,Ltd. Patentee after: Hitachi LG Data Storage Inc. Address before: Tokyo, Japan Patentee before: Hitachi Manufacturing Co., Ltd. Patentee before: Hitachi LG Data Storage Inc. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20150807 |
|
EXPY | Termination of patent right or utility model |