WO1997033276A1 - Appareil de mise au point et appareil optique dans lequel il est utilise - Google Patents
Appareil de mise au point et appareil optique dans lequel il est utilise Download PDFInfo
- Publication number
- WO1997033276A1 WO1997033276A1 PCT/JP1997/000629 JP9700629W WO9733276A1 WO 1997033276 A1 WO1997033276 A1 WO 1997033276A1 JP 9700629 W JP9700629 W JP 9700629W WO 9733276 A1 WO9733276 A1 WO 9733276A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical disk
- light source
- objective lens
- width
- laser light
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 131
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 38
- 238000001228 spectrum Methods 0.000 claims description 25
- 239000004065 semiconductor Substances 0.000 claims description 6
- 230000008571 general function Effects 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 210000000689 upper leg Anatomy 0.000 claims 2
- 238000000295 emission spectrum Methods 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 13
- 238000001514 detection method Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 201000009310 astigmatism Diseases 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000012780 transparent material Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920001289 polyvinyl ether Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010409 thin film Substances 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
- G11B7/24—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)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97903643A EP0886267A4 (en) | 1996-03-06 | 1997-03-03 | FOCUSING DEVICE AND PROVIDED OPTICAL DEVICE |
KR1019980706819A KR100299322B1 (ko) | 1996-03-06 | 1997-03-03 | 포커싱장치및이것을이용한광디스크장치 |
AU18130/97A AU1813097A (en) | 1996-03-06 | 1997-03-03 | Focusing apparatus and optical apparatus using the same |
JP09531651A JP3128247B2 (ja) | 1996-03-06 | 1997-03-03 | フォーカシング装置およびこれを用いた光ディスク装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/49202 | 1996-03-06 | ||
JP4920296 | 1996-03-06 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/656,420 Continuation US6537789B1 (en) | 1996-03-08 | 2000-09-06 | Process for the deacylation of cyclic lipopeptides |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997033276A1 true WO1997033276A1 (fr) | 1997-09-12 |
Family
ID=12824417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/000629 WO1997033276A1 (fr) | 1996-03-06 | 1997-03-03 | Appareil de mise au point et appareil optique dans lequel il est utilise |
Country Status (8)
Country | Link |
---|---|
US (1) | US5905699A (ja) |
EP (1) | EP0886267A4 (ja) |
JP (1) | JP3128247B2 (ja) |
KR (1) | KR100299322B1 (ja) |
CN (1) | CN1122981C (ja) |
AU (1) | AU1813097A (ja) |
TW (1) | TW334514B (ja) |
WO (1) | WO1997033276A1 (ja) |
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 |
Citations (5)
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 |
JPH05242551A (ja) * | 1992-02-26 | 1993-09-21 | Casio Comput Co Ltd | 光ディスク装置 |
JPH06326002A (ja) * | 1993-03-15 | 1994-11-25 | Toshiba Corp | 位置合せ装置 |
JPH0855363A (ja) * | 1994-08-12 | 1996-02-27 | Matsushita Electric Ind Co Ltd | 光ヘッド |
JPH08191171A (ja) * | 1995-01-12 | 1996-07-23 | Nichia Chem Ind Ltd | 窒化物半導体レーザ素子 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
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 |
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 AU AU18130/97A patent/AU1813097A/en not_active Abandoned
- 1997-03-03 KR KR1019980706819A patent/KR100299322B1/ko not_active IP Right Cessation
- 1997-03-03 EP EP97903643A patent/EP0886267A4/en not_active Withdrawn
- 1997-03-03 JP JP09531651A patent/JP3128247B2/ja not_active Expired - Fee Related
- 1997-03-03 CN CN97192831A patent/CN1122981C/zh not_active Expired - Fee Related
- 1997-03-03 WO PCT/JP1997/000629 patent/WO1997033276A1/ja not_active Application Discontinuation
- 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
Patent Citations (5)
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 |
JPH05242551A (ja) * | 1992-02-26 | 1993-09-21 | Casio Comput Co Ltd | 光ディスク装置 |
JPH06326002A (ja) * | 1993-03-15 | 1994-11-25 | Toshiba Corp | 位置合せ装置 |
JPH0855363A (ja) * | 1994-08-12 | 1996-02-27 | Matsushita Electric Ind Co Ltd | 光ヘッド |
JPH08191171A (ja) * | 1995-01-12 | 1996-07-23 | Nichia Chem Ind Ltd | 窒化物半導体レーザ素子 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0886267A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR19990087403A (ko) | 1999-12-27 |
CN1122981C (zh) | 2003-10-01 |
EP0886267A1 (en) | 1998-12-23 |
EP0886267A4 (en) | 1999-11-03 |
US5905699A (en) | 1999-05-18 |
AU1813097A (en) | 1997-09-22 |
CN1212780A (zh) | 1999-03-31 |
TW334514B (en) | 1998-06-21 |
JP3128247B2 (ja) | 2001-01-29 |
KR100299322B1 (ko) | 2001-10-29 |
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