TW200945338A - Optical pickup apparatus, optical read/write apparatus, and gap control method - Google Patents
Optical pickup apparatus, optical read/write apparatus, and gap control method Download PDFInfo
- Publication number
- TW200945338A TW200945338A TW097150692A TW97150692A TW200945338A TW 200945338 A TW200945338 A TW 200945338A TW 097150692 A TW097150692 A TW 097150692A TW 97150692 A TW97150692 A TW 97150692A TW 200945338 A TW200945338 A TW 200945338A
- Authority
- TW
- Taiwan
- Prior art keywords
- recording medium
- information recording
- light
- gap
- signal
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims description 17
- 238000001514 detection method Methods 0.000 claims description 10
- 238000007654 immersion Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000003252 repetitive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
- G11B7/135—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
- 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
- G11B7/0908—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 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
- G11B7/095—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
- G11B7/0956—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 to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
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 |
|---|---|---|---|
| JP2007335080A JP2009158007A (ja) | 2007-12-26 | 2007-12-26 | 光学ピックアップ装置、光記録再生装置及びギャップ制御方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW200945338A true TW200945338A (en) | 2009-11-01 |
Family
ID=40347996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW097150692A TW200945338A (en) | 2007-12-26 | 2008-12-25 | Optical pickup apparatus, optical read/write apparatus, and gap control method |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7933177B2 (https=) |
| EP (1) | EP2077554A1 (https=) |
| JP (1) | JP2009158007A (https=) |
| KR (1) | KR20090071493A (https=) |
| CN (1) | CN101471093B (https=) |
| TW (1) | TW200945338A (https=) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009158007A (ja) * | 2007-12-26 | 2009-07-16 | Sony Corp | 光学ピックアップ装置、光記録再生装置及びギャップ制御方法 |
| EP2299444A1 (en) | 2009-09-15 | 2011-03-23 | Thomson Licensing | Near-field optical recording apparatus, method and medium |
| CN103430236A (zh) * | 2011-03-22 | 2013-12-04 | 松下电器产业株式会社 | 光信息装置以及其间隙控制方法 |
| KR101312516B1 (ko) * | 2011-04-27 | 2013-10-01 | 주식회사 포스코 | 하이드로포밍용 이멀젼 필터링 장치 |
| NL2016311A (en) | 2015-02-25 | 2016-09-30 | Asml Netherlands Bv | Method and apparatus for inspection and metrology. |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8004969A (nl) | 1980-09-02 | 1982-04-01 | Philips Nv | Inrichting voor optische scherpstelling. |
| NL9000282A (nl) * | 1990-02-06 | 1991-09-02 | Philips Nv | Optische aftastinrichting met meerdere aftastvlekken. |
| JP3956547B2 (ja) | 1999-09-07 | 2007-08-08 | ソニー株式会社 | 光記録装置、光記録及び／又は再生方法 |
| US7260032B2 (en) * | 2001-08-06 | 2007-08-21 | Sharp Kabushiki Kaisha | Focal point adjusting method, and optical pickup device |
| US7733747B2 (en) | 2003-01-17 | 2010-06-08 | Sony Corporation | Information recording or reproducing device and recording or reproducing method |
| JP2005209318A (ja) * | 2004-01-26 | 2005-08-04 | Sony Corp | 光ディスク装置及びその制御方法 |
| JP2007533061A (ja) * | 2004-04-16 | 2007-11-15 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 光学記録のためのエアギャップ |
| JP4534859B2 (ja) * | 2005-05-06 | 2010-09-01 | ソニー株式会社 | サーボ制御装置及びサーボ制御方法、並びに光ディスク記録又は再生装置 |
| JP2006344351A (ja) * | 2005-05-13 | 2006-12-21 | Sony Corp | 光記録再生装置、光学ヘッド、光記録再生方法及びスキュー検出方法 |
| JP2008545219A (ja) * | 2005-07-04 | 2008-12-11 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 光ピックアップおよび／または記録装置 |
| US7145304B1 (en) | 2005-08-29 | 2006-12-05 | Zoran Corporation | Rotating storage media control loops having adaptive feed forward insertion of signals including harmonics |
| WO2007049893A1 (en) * | 2005-10-24 | 2007-05-03 | Lg Electronics Inc. | An apparatus and method for recording/reproducing data on/from a recording medium |
| EP1961003B1 (en) * | 2005-12-06 | 2010-02-10 | Koninklijke Philips Electronics N.V. | Air gap servo for optical recording |
| JP2007323791A (ja) * | 2006-06-05 | 2007-12-13 | Canon Inc | 光情報記録再生装置 |
| JP4345859B2 (ja) * | 2007-09-12 | 2009-10-14 | ソニー株式会社 | 光学ピックアップ装置、光記録再生装置及びギャップの制御方法 |
| JP2009158007A (ja) * | 2007-12-26 | 2009-07-16 | Sony Corp | 光学ピックアップ装置、光記録再生装置及びギャップ制御方法 |
| KR20090077145A (ko) * | 2008-01-10 | 2009-07-15 | 삼성전자주식회사 | 근접장 광기록/재생 장치 및 상기 장치의 갭 에러 신호정규화 방법 |
-
2007
- 2007-12-26 JP JP2007335080A patent/JP2009158007A/ja active Pending
-
2008
- 2008-11-06 EP EP08253628A patent/EP2077554A1/en not_active Withdrawn
- 2008-12-16 US US12/335,912 patent/US7933177B2/en not_active Expired - Fee Related
- 2008-12-25 TW TW097150692A patent/TW200945338A/zh unknown
- 2008-12-25 CN CN2008101865592A patent/CN101471093B/zh not_active Expired - Fee Related
- 2008-12-26 KR KR1020080134814A patent/KR20090071493A/ko not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US7933177B2 (en) | 2011-04-26 |
| KR20090071493A (ko) | 2009-07-01 |
| JP2009158007A (ja) | 2009-07-16 |
| CN101471093A (zh) | 2009-07-01 |
| EP2077554A1 (en) | 2009-07-08 |
| CN101471093B (zh) | 2011-04-06 |
| US20090168633A1 (en) | 2009-07-02 |
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