DE69937427D1 - Vorrichtungen zur optischen Abtastung, zur Spurverfolgung und zum Abspielen von Platten - Google Patents
Vorrichtungen zur optischen Abtastung, zur Spurverfolgung und zum Abspielen von PlattenInfo
- Publication number
- DE69937427D1 DE69937427D1 DE69937427T DE69937427T DE69937427D1 DE 69937427 D1 DE69937427 D1 DE 69937427D1 DE 69937427 T DE69937427 T DE 69937427T DE 69937427 T DE69937427 T DE 69937427T DE 69937427 D1 DE69937427 D1 DE 69937427D1
- Authority
- DE
- Germany
- Prior art keywords
- playback
- discs
- tracking
- devices
- optical scanning
- 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
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
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
-
- 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
- G11B7/094—Methods and circuits for servo offset compensation
-
- 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
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
-
- 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
-
- 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
- G11B7/1359—Single prisms
-
- 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
-
- 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
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
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 |
---|---|---|---|
JP16236098 | 1998-06-10 | ||
JP16236098A JP3422255B2 (ja) | 1998-06-10 | 1998-06-10 | トラッキング装置、及び光ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69937427D1 true DE69937427D1 (de) | 2007-12-13 |
DE69937427T2 DE69937427T2 (de) | 2008-04-17 |
Family
ID=15753096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69937427T Expired - Fee Related DE69937427T2 (de) | 1998-06-10 | 1999-03-24 | Vorrichtungen zur optischen Abtastung, zur Spurverfolgung und zum Abspielen von Platten |
Country Status (5)
Country | Link |
---|---|
US (2) | US6407967B1 (de) |
EP (1) | EP0965983B1 (de) |
JP (1) | JP3422255B2 (de) |
KR (1) | KR100350511B1 (de) |
DE (1) | DE69937427T2 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100403622B1 (ko) * | 2001-04-12 | 2003-10-30 | 삼성전자주식회사 | 광픽업장치 및 광스폿의 최적 포커싱 방법 |
JP3782325B2 (ja) * | 2001-07-27 | 2006-06-07 | 株式会社日立製作所 | ディスク駆動装置 |
JP2003203407A (ja) * | 2001-12-28 | 2003-07-18 | Fujitsu Ltd | 光磁気記録再生装置 |
JP2004264808A (ja) * | 2003-01-07 | 2004-09-24 | Shinohara Yasuko | 光学顕微鏡および天体望遠鏡の結像方法 |
DE10330945A1 (de) * | 2003-07-08 | 2005-02-03 | Deutsche Thomson-Brandt Gmbh | Optischer Abtaster mit Mikrooptik zur Strahlkombination |
JP2005222600A (ja) * | 2004-02-05 | 2005-08-18 | Pioneer Electronic Corp | ディスク挿入排出装置 |
TWI250301B (en) * | 2004-03-17 | 2006-03-01 | Asia Optical Co Inc | The optical system of laser meter |
JP3980602B2 (ja) * | 2005-03-02 | 2007-09-26 | シャープ株式会社 | 収差検出装置およびそれを備えた光ピックアップ装置 |
CN101171629B (zh) | 2005-04-27 | 2010-10-06 | 松下电器产业株式会社 | 光头装置及光信息处理装置 |
KR101350988B1 (ko) | 2012-05-16 | 2014-01-15 | 도시바삼성스토리지테크놀러지코리아 주식회사 | 트랙킹 에러신호 생성 방법 및 장치 및 이를 적용한 광정보저장매체 시스템 |
KR101722536B1 (ko) * | 2016-11-07 | 2017-04-04 | 윤태열 | 레이저 트랙커를 이용한 부품 조립공정 및 그 조립 오차 보정장치 |
CN114883420A (zh) * | 2022-04-25 | 2022-08-09 | Nano科技(北京)有限公司 | 提高光电探测器高功率工作特性的封装结构及封装方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0680535B2 (ja) | 1982-08-27 | 1994-10-12 | 株式会社日立製作所 | 情報の記録再生方法 |
US5231621A (en) * | 1986-09-05 | 1993-07-27 | Canon Kabushiki Kaisha | Focus detector which serves to split off a portion of a detected light beam only when the detected light beam is not refocused at an expected refocus point |
NL8703001A (nl) | 1986-12-11 | 1988-07-01 | Pioneer Electronic Corp | Een volgfoutsignaalgenerator. |
DE68923833T2 (de) * | 1988-06-20 | 1996-06-13 | Mitsubishi Electric Corp | Optischer Kopf mit Kippkorrekturservomechanismus. |
JPH0770073B2 (ja) | 1989-08-04 | 1995-07-31 | 松下電器産業株式会社 | 光学ヘッド |
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 |
JP2532818B2 (ja) | 1993-02-01 | 1996-09-11 | 松下電器産業株式会社 | 対物レンズおよび光ヘッド装置 |
JP2942718B2 (ja) | 1994-10-05 | 1999-08-30 | 富士通株式会社 | 光学的情報記録再生装置 |
JPH08306057A (ja) | 1995-05-11 | 1996-11-22 | Matsushita Electric Ind Co Ltd | 光学ヘッド |
JP3563210B2 (ja) | 1996-02-14 | 2004-09-08 | 富士通株式会社 | 光ディスク装置用光学装置及び光ディスク装置 |
KR100375514B1 (ko) * | 1997-10-20 | 2003-11-28 | 삼성전기주식회사 | 광픽업장치 |
-
1998
- 1998-06-10 JP JP16236098A patent/JP3422255B2/ja not_active Expired - Fee Related
- 1998-12-30 US US09/223,656 patent/US6407967B1/en not_active Expired - Fee Related
-
1999
- 1999-01-19 KR KR1019990001422A patent/KR100350511B1/ko not_active IP Right Cessation
- 1999-03-24 DE DE69937427T patent/DE69937427T2/de not_active Expired - Fee Related
- 1999-03-24 EP EP99302261A patent/EP0965983B1/de not_active Expired - Lifetime
-
2002
- 2002-06-10 US US10/166,187 patent/US20020167885A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE69937427T2 (de) | 2008-04-17 |
EP0965983A3 (de) | 2001-02-14 |
JPH11353670A (ja) | 1999-12-24 |
KR100350511B1 (ko) | 2002-08-28 |
JP3422255B2 (ja) | 2003-06-30 |
KR20000005566A (ko) | 2000-01-25 |
US6407967B1 (en) | 2002-06-18 |
EP0965983B1 (de) | 2007-10-31 |
EP0965983A2 (de) | 1999-12-22 |
US20020167885A1 (en) | 2002-11-14 |
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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 |
|
8339 | Ceased/non-payment of the annual fee |