DE69612572D1 - Optischer kopf - Google Patents
Optischer kopfInfo
- Publication number
- DE69612572D1 DE69612572D1 DE69612572T DE69612572T DE69612572D1 DE 69612572 D1 DE69612572 D1 DE 69612572D1 DE 69612572 T DE69612572 T DE 69612572T DE 69612572 T DE69612572 T DE 69612572T DE 69612572 D1 DE69612572 D1 DE 69612572D1
- Authority
- DE
- Germany
- Prior art keywords
- optical head
- optical
- head
- 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 - Lifetime
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
-
- 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
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
-
- 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
- G11B7/0901—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 for track following only
- G11B7/0903—Multi-beam tracking systems
-
- 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
-
- 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
- G11B7/13—Optical detectors therefor
-
- 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
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28037295 | 1995-10-27 | ||
PCT/JP1996/003141 WO1997015923A1 (en) | 1995-10-27 | 1996-10-28 | Optical head |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69612572D1 true DE69612572D1 (de) | 2001-05-23 |
DE69612572T2 DE69612572T2 (de) | 2001-08-09 |
Family
ID=17624102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69612572T Expired - Lifetime DE69612572T2 (de) | 1995-10-27 | 1996-10-28 | Optischer kopf |
Country Status (7)
Country | Link |
---|---|
US (2) | US6275463B1 (de) |
EP (1) | EP0882292B1 (de) |
JP (1) | JP3590637B2 (de) |
KR (1) | KR100374451B1 (de) |
CN (1) | CN1146887C (de) |
DE (1) | DE69612572T2 (de) |
WO (1) | WO1997015923A1 (de) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7203138B2 (en) * | 1996-06-18 | 2007-04-10 | Matsushita Electric Industrial Co., Ltd. | Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same |
US6744707B1 (en) * | 1996-06-18 | 2004-06-01 | Matsushita Electric Industrial Co., Ltd. | Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same |
US6185167B1 (en) * | 1997-06-30 | 2001-02-06 | Matsushita Electric Industrial Co., Ltd. | Optical head and information recording and reproduction apparatus |
EP0951014A3 (de) * | 1998-04-14 | 2000-02-23 | Deutsche Thomson-Brandt Gmbh | Vorrichtung zum Lesen oder Beschreiben eines optischen Aufzeichnungsmediums |
JP2000339717A (ja) * | 1999-05-31 | 2000-12-08 | Matsushita Electric Ind Co Ltd | 光ディスク記録再生装置 |
JP4578656B2 (ja) * | 1999-09-16 | 2010-11-10 | 三星電子株式会社 | 光記録再生機器用エラー信号検出装置 |
JP4006904B2 (ja) * | 1999-09-29 | 2007-11-14 | ソニー株式会社 | 光ヘッド、光検出素子、光情報記録再生装置および焦点誤差検出方法 |
US6882605B1 (en) * | 1999-11-16 | 2005-04-19 | Matsushita Electric Industrial Co., Ltd. | Focusing method, method of detecting focal point deviation, method of forming master of data storage medium, focusing control unit, unit for detecting focal point deviation, and unit for forming master of data storage medium |
CN100336120C (zh) * | 2000-06-26 | 2007-09-05 | 松下电器产业株式会社 | 光学头 |
US7304920B2 (en) | 2000-06-26 | 2007-12-04 | Matsushita Electric Industrial Co., Ltd. | Optical head that detects tilt in an optical disk |
JP3998895B2 (ja) * | 2000-08-04 | 2007-10-31 | パイオニア株式会社 | 光ピックアップ装置及びチルト量検出方法 |
KR100464072B1 (ko) * | 2000-12-29 | 2004-12-30 | 엘지전자 주식회사 | 광픽업의 대물렌즈 출사광 스큐 조정방법 |
CN100437780C (zh) * | 2001-06-04 | 2008-11-26 | 松下电器产业株式会社 | 光拾取头及信息记录再现装置 |
JP2004281026A (ja) * | 2002-08-23 | 2004-10-07 | Matsushita Electric Ind Co Ltd | 光ピックアップヘッド装置及び光情報装置及び光情報再生方法 |
WO2004042714A1 (ja) * | 2002-11-07 | 2004-05-21 | Matsushita Electric Industrial Co., Ltd. | 光学ヘッドおよび光学ヘッドを備えた光ディスク装置 |
KR100524986B1 (ko) * | 2003-08-26 | 2005-10-31 | 삼성전자주식회사 | 광픽업 및 이를 채용한 광 기록 및/또는 재생기기 |
US8023368B2 (en) * | 2003-10-16 | 2011-09-20 | Panasonic Corporation | Tilt sensor and optical disk drive |
JP2005135539A (ja) * | 2003-10-31 | 2005-05-26 | Canon Inc | 光ヘッドおよびそれを用いた光学的情報記録再生装置 |
US20060039253A1 (en) * | 2004-08-18 | 2006-02-23 | Sony Corporation | Optical disk apparatus and method of controlling optical disk apparatus |
DE602005011375D1 (de) | 2004-08-31 | 2009-01-15 | Panasonic Corp | Optischer Kopf, optische Plattenvorrichtung und integrierte Schaltungsanordnung |
CN101661763B (zh) * | 2006-03-03 | 2012-10-10 | 索尼株式会社 | 光拾取装置以及光盘装置 |
JP4936053B2 (ja) * | 2006-03-03 | 2012-05-23 | ソニー株式会社 | 光ピックアップ装置および光ディスク装置 |
CN101421785B (zh) * | 2006-04-12 | 2011-07-27 | 松下电器产业株式会社 | 光盘装置 |
US20070242575A1 (en) * | 2006-04-17 | 2007-10-18 | Toshiteru Nakamura | Optical Pickup and Optical Disc Apparatus |
JP2009020967A (ja) | 2007-07-12 | 2009-01-29 | Sharp Corp | 光ピックアップ装置 |
US20090245068A1 (en) * | 2008-03-31 | 2009-10-01 | Panasonic Corporation | Optical pickup device and optical disc drive |
JP5255961B2 (ja) * | 2008-09-05 | 2013-08-07 | 株式会社日立メディアエレクトロニクス | 光ピックアップ装置および光ディスク装置 |
JP2012047464A (ja) * | 2010-08-24 | 2012-03-08 | Sony Corp | 微小粒子測定装置及び光軸補正方法 |
JP6600814B2 (ja) * | 2015-03-23 | 2019-11-06 | パナソニックIpマネジメント株式会社 | 記録装置 |
JP6820547B2 (ja) * | 2016-03-09 | 2021-01-27 | パナソニックIpマネジメント株式会社 | 記録再生装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5752006A (en) * | 1980-08-19 | 1982-03-27 | Olympus Optical Co Ltd | Method and device for detecting focus |
JPS59191143A (ja) | 1983-04-15 | 1984-10-30 | Hitachi Ltd | 光学的トラツク追跡装置 |
DE3429382A1 (de) * | 1983-08-10 | 1985-02-28 | Canon K.K., Tokio/Tokyo | Optischer kopf |
JPS60253027A (ja) * | 1984-05-29 | 1985-12-13 | Canon Inc | 光学的情報処理装置 |
US4817074A (en) * | 1985-12-19 | 1989-03-28 | Nec Corporation | Method and apparatus for detecting the focusing state and positioning accuracy of a light beam directed onto an optical disk tracking guide in an optical recording system |
JPH0648575Y2 (ja) * | 1988-09-13 | 1994-12-12 | パイオニア株式会社 | 光検出器 |
US5036185A (en) * | 1988-12-27 | 1991-07-30 | Kabushiki Kaisha Toshiba | Optical apparatus for detecting a focusing state |
US5113386A (en) * | 1989-10-30 | 1992-05-12 | Eastman Kodak Company | Focus and tracking error detector apparatus for optical and magneto-optical information storage systems |
US5434835A (en) | 1990-11-07 | 1995-07-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Optical disk apparatus |
JPH04205726A (ja) | 1990-11-29 | 1992-07-27 | Ricoh Co Ltd | オフセット除去装置 |
US5253236A (en) * | 1991-10-03 | 1993-10-12 | International Business Machines Corporation | Optical beam focusing and tracking system for an optical disk information storage device |
JPH05242512A (ja) * | 1991-12-19 | 1993-09-21 | Matsushita Electric Ind Co Ltd | 光ディスク装置 |
US5742572A (en) * | 1993-06-21 | 1998-04-21 | Fujitsu Limited | Optical information recording/reproducing apparatus which detects focal error |
JP2664327B2 (ja) * | 1993-06-21 | 1997-10-15 | 富士通株式会社 | 光学的ヘッド及び光学的記録再生方法 |
JPH07311961A (ja) * | 1994-05-16 | 1995-11-28 | Nippon Steel Corp | 光ピックアップ |
EP0732689B1 (de) * | 1995-03-14 | 2002-06-12 | Kabushiki Kaisha Toshiba | Lichtdetektor |
-
1996
- 1996-10-28 JP JP51648697A patent/JP3590637B2/ja not_active Expired - Lifetime
- 1996-10-28 US US09/064,847 patent/US6275463B1/en not_active Expired - Lifetime
- 1996-10-28 DE DE69612572T patent/DE69612572T2/de not_active Expired - Lifetime
- 1996-10-28 CN CNB961990791A patent/CN1146887C/zh not_active Expired - Fee Related
- 1996-10-28 KR KR10-1998-0703021A patent/KR100374451B1/ko not_active IP Right Cessation
- 1996-10-28 WO PCT/JP1996/003141 patent/WO1997015923A1/en not_active Application Discontinuation
- 1996-10-28 EP EP96935463A patent/EP0882292B1/de not_active Expired - Lifetime
-
2001
- 2001-07-06 US US09/899,204 patent/US6438091B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1146887C (zh) | 2004-04-21 |
KR19990067081A (ko) | 1999-08-16 |
JP3590637B2 (ja) | 2004-11-17 |
US6438091B2 (en) | 2002-08-20 |
EP0882292B1 (de) | 2001-04-18 |
CN1204414A (zh) | 1999-01-06 |
WO1997015923A1 (en) | 1997-05-01 |
JPH11513835A (ja) | 1999-11-24 |
EP0882292A1 (de) | 1998-12-09 |
US6275463B1 (en) | 2001-08-14 |
US20010055248A1 (en) | 2001-12-27 |
DE69612572T2 (de) | 2001-08-09 |
KR100374451B1 (ko) | 2003-05-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PANASONIC CORP., KADOMA, OSAKA, JP |