TW334514B - Focusing device and apparatus for optical disk use the same - Google Patents
Focusing device and apparatus for optical disk use the sameInfo
- Publication number
- TW334514B TW334514B TW086102573A TW86102573A TW334514B TW 334514 B TW334514 B TW 334514B TW 086102573 A TW086102573 A TW 086102573A TW 86102573 A TW86102573 A TW 86102573A TW 334514 B TW334514 B TW 334514B
- Authority
- TW
- Taiwan
- Prior art keywords
- optical disk
- objective lens
- optical
- focusing device
- focusing
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title abstract 9
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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming
-
- 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
- G11B7/0909—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 by astigmatic methods
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
- G03F9/70—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically for microlithography
-
- 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
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- 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
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/127—Lasers; Multiple laser arrays
-
- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24047—Substrates
-
- 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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4920296 | 1996-03-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW334514B true TW334514B (en) | 1998-06-21 |
Family
ID=12824417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW086102573A TW334514B (en) | 1996-03-06 | 1997-03-04 | Focusing device and apparatus for optical disk use the same |
Country Status (8)
Country | Link |
---|---|
US (1) | US5905699A (zh) |
EP (1) | EP0886267A4 (zh) |
JP (1) | JP3128247B2 (zh) |
KR (1) | KR100299322B1 (zh) |
CN (1) | CN1122981C (zh) |
AU (1) | AU1813097A (zh) |
TW (1) | TW334514B (zh) |
WO (1) | WO1997033276A1 (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10302320A (ja) * | 1997-04-25 | 1998-11-13 | Sanyo Electric Co Ltd | 記録媒体および光ピックアップ装置 |
JP2000134483A (ja) * | 1998-10-26 | 2000-05-12 | Minolta Co Ltd | 画像読取装置 |
JP4081702B2 (ja) * | 1999-07-29 | 2008-04-30 | ソニー株式会社 | 露光装置及び露光方法 |
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 |
RU2162253C1 (ru) * | 2000-06-26 | 2001-01-20 | Закрытое акционерное общество "Инфокристал" | Способ автофокусировки оптического излучения на информационном слое носителя информации и устройство для его осуществления |
JP2003016691A (ja) * | 2001-06-29 | 2003-01-17 | Toshiba Corp | 多層構造の情報媒体およびこの媒体を用いる装置 |
JP3577054B2 (ja) * | 2002-03-27 | 2004-10-13 | ローム株式会社 | 光ピックアップ及び光ピックアップの製法並びに光ディスクシステム |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60103531A (ja) * | 1983-11-11 | 1985-06-07 | Hitachi Ltd | 光学的信号処理装置 |
JPH0743469B2 (ja) * | 1984-04-18 | 1995-05-15 | ソニー株式会社 | 記録再生光学系の製造方法 |
US4748333A (en) * | 1986-03-31 | 1988-05-31 | Nippon Kogaku K. K. | Surface displacement sensor with opening angle control |
US5241188A (en) * | 1991-02-01 | 1993-08-31 | Nikon Corporation | Apparatus for detecting a focussing position |
US5748598A (en) * | 1995-12-22 | 1998-05-05 | Massachusetts Institute Of Technology | Apparatus and methods for reading multilayer storage media using short coherence length sources |
JPH05242551A (ja) * | 1992-02-26 | 1993-09-21 | Casio Comput Co Ltd | 光ディスク装置 |
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 |
JP3302164B2 (ja) * | 1993-03-15 | 2002-07-15 | 株式会社東芝 | 位置合せ装置 |
JPH06302003A (ja) * | 1993-04-12 | 1994-10-28 | Rohm Co Ltd | 光ピックアップ |
JPH0887770A (ja) * | 1994-03-18 | 1996-04-02 | Sanyo Electric Co Ltd | 光学式情報再生装置及び方法 |
JP3240846B2 (ja) * | 1994-08-12 | 2001-12-25 | 松下電器産業株式会社 | 光ヘッド |
JP3523700B2 (ja) * | 1995-01-12 | 2004-04-26 | 日亜化学工業株式会社 | 窒化物半導体レーザ素子 |
JP2931226B2 (ja) * | 1995-01-26 | 1999-08-09 | 浜松ホトニクス株式会社 | 光帰還式光検出装置 |
-
1997
- 1997-03-03 KR KR1019980706819A patent/KR100299322B1/ko not_active IP Right Cessation
- 1997-03-03 CN CN97192831A patent/CN1122981C/zh not_active Expired - Fee Related
- 1997-03-03 EP EP97903643A patent/EP0886267A4/en not_active Withdrawn
- 1997-03-03 WO PCT/JP1997/000629 patent/WO1997033276A1/ja not_active Application Discontinuation
- 1997-03-03 AU AU18130/97A patent/AU1813097A/en not_active Abandoned
- 1997-03-03 JP JP09531651A patent/JP3128247B2/ja not_active Expired - Fee Related
- 1997-03-04 TW TW086102573A patent/TW334514B/zh not_active IP Right Cessation
- 1997-03-06 US US08/811,721 patent/US5905699A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP3128247B2 (ja) | 2001-01-29 |
WO1997033276A1 (fr) | 1997-09-12 |
CN1212780A (zh) | 1999-03-31 |
AU1813097A (en) | 1997-09-22 |
KR19990087403A (ko) | 1999-12-27 |
US5905699A (en) | 1999-05-18 |
KR100299322B1 (ko) | 2001-10-29 |
EP0886267A4 (en) | 1999-11-03 |
CN1122981C (zh) | 2003-10-01 |
EP0886267A1 (en) | 1998-12-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |