ES2149435T3 - Captador optico. - Google Patents
Captador optico.Info
- Publication number
- ES2149435T3 ES2149435T3 ES96401271T ES96401271T ES2149435T3 ES 2149435 T3 ES2149435 T3 ES 2149435T3 ES 96401271 T ES96401271 T ES 96401271T ES 96401271 T ES96401271 T ES 96401271T ES 2149435 T3 ES2149435 T3 ES 2149435T3
- Authority
- ES
- Spain
- Prior art keywords
- light
- receiving
- ray
- optical
- recording media
- 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
- 230000003287 optical effect Effects 0.000 title abstract 6
- 238000001514 detection method Methods 0.000 abstract 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
- G11B7/0901—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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B19/128—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of track pitch or recording density
-
- 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
- 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
- G11B7/139—Numerical aperture control means
-
- 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
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
-
- 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)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Microscoopes, Condenser (AREA)
- Holo Graphy (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Glass Compositions (AREA)
- Surgical Instruments (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Abstract
DETECTOR OPTICO QUE INCLUYE UNA FUENTE DE LUZ (21) QUE IRRADIA UN RAYO DE LUZ, UN ELEMENTO DE DIFRACCION (22), QUE SEPARA UN RAYO DE LUZ IRRADIADO DE LA FUENTE DE LUZ EN, AL MENOS, TRES RAYOS, UN RAYO PRINCIPAL Y DOS LATERALES, UNA LENTE DE OBJETIVO (25) PARA HACER CONVERGER LOS RAYOS DE LUZ SEPARADOS POR EL ELEMENTO DE DIFRACCION, SOBRE UNA SUPERFICIE DE GRABACION DE SEÑALES DE UN MEDIO DE GRABACION OPTICA (11), UNA UNIDAD RECEPTORA DE LUZ (24) CON UNA PRIMERA PARTE RECEPTORA DE LUZ (71) QUE RECIBE EL RAYO PRINCIPAL, REFLEJADO POR LA SUPERFICIE DE GRABACION DEL MEDIO DE GRABACION OPTICO Y UNA SEGUNDA Y TERCERA PARTES RECEPTORAS DE LUZ (72,73), COLOCADAS A LOS LADOS RESPECTIVOS DE LA PRIMERA PARTE RECEPTORA DE LUZ (71), QUE RECIBEN LOS RAYOS LATERALES REFLEJADOS POR LA SUPERFICIE DE GRABACION DEL MEDIO DE GRABACION OPTICO Y UNA UNIDAD DE CALCULO (26), QUE GENERA UNA SEÑAL DE SEGUIMIENTO BASADA EN LAS SALIDAS RESPECTIVAS DE LA PRIMERA PARTE RECEPTORA DE LUZ Y QUE GENERA OTRA SEÑAL DE SEGUIMIENTO, BASADA EN SALIDAS DE LA SEGUNDA Y TERCERA PARTES RECEPTORAS DE LUZ. EN LAS MATERIALIZACIONES PREFERIDAS DEL APARATO, UNA UNIDAD DE DISCRIMINACION DE DISCO, ENVIA UNA SALIDA DE DETECCION DEL DISCO OPTICO, TANTO AL INTERRUPTOR DE CAMBIO QUE SELECCIONA LA SEÑAL DE ERROR DE SEGUIMIENTO DESEADA, COMO A UNA UNIDAD DE CONTROL DE RITMO DE APERTURA VARIABLE.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7144714A JPH08339552A (ja) | 1995-06-12 | 1995-06-12 | 光学ピックアップ装置 |
JP7154399A JPH097197A (ja) | 1995-06-21 | 1995-06-21 | 光記録媒体の記録及び/又は再生装置 |
JP7166637A JPH0917022A (ja) | 1995-06-30 | 1995-06-30 | 光学ヘッド装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2149435T3 true ES2149435T3 (es) | 2000-11-01 |
Family
ID=27318863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96401271T Expired - Lifetime ES2149435T3 (es) | 1995-06-12 | 1996-06-12 | Captador optico. |
Country Status (11)
Country | Link |
---|---|
US (2) | US6222803B1 (es) |
EP (1) | EP0749118B1 (es) |
KR (1) | KR100464762B1 (es) |
CN (1) | CN1103991C (es) |
AT (1) | ATE195829T1 (es) |
AU (1) | AU714000B2 (es) |
BR (1) | BR9602750A (es) |
CA (1) | CA2178685A1 (es) |
DE (1) | DE69609902T2 (es) |
ES (1) | ES2149435T3 (es) |
MY (1) | MY116529A (es) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU714000B2 (en) * | 1995-06-12 | 1999-12-16 | Sony Corporation | Optical pickup |
DE19536396A1 (de) * | 1995-09-29 | 1997-04-03 | Thomson Brandt Gmbh | Wiedergabe- und/oder Aufzeichnungsgerät für optische Aufzeichnungsträger unterschiedlicher Speicherdichte |
JP3633069B2 (ja) * | 1995-12-15 | 2005-03-30 | 富士通株式会社 | 光ディスク装置 |
DE69727989T2 (de) * | 1996-09-25 | 2004-07-22 | Victor Company of Japan, Ltd., Yokohama | Gerät zur Festlegung des Typs einer Platte, Gerät zur Wiedergabe einer optischen Platte |
TW452793B (en) * | 1997-03-27 | 2001-09-01 | Matsushita Electric Ind Co Ltd | Recording and reproducing method for optical information recording medium, and optical information recording medium |
EP1515317B1 (en) * | 1997-04-09 | 2010-06-30 | Ricoh Company, Ltd. | Tracking servo control method |
EP0895228A3 (en) * | 1997-07-31 | 1999-11-24 | THOMSON multimedia S.A. | A tracking system for optical storage media |
EP0895227A1 (en) | 1997-07-31 | 1999-02-03 | THOMSON multimedia | A tracking system for optical storage media |
JPH11238245A (ja) * | 1998-02-24 | 1999-08-31 | Sony Corp | 光検出信号処理装置 |
JP3645711B2 (ja) * | 1998-05-27 | 2005-05-11 | 松下電器産業株式会社 | 光ディスク装置および光ディスク制御方法 |
CN1154985C (zh) * | 1998-07-03 | 2004-06-23 | 株式会社日立制作所 | 光检测器、信号处理电路、及其光信息再现设备 |
JP4003303B2 (ja) * | 1998-07-22 | 2007-11-07 | ソニー株式会社 | 信号記録装置 |
JP2000132855A (ja) * | 1998-10-27 | 2000-05-12 | Matsushita Electric Ind Co Ltd | 光情報記録再生装置 |
US6597642B1 (en) * | 1999-11-12 | 2003-07-22 | Matsushita Electric Industrial Co., Ltd | Photodetector unit, and optical pickup, optical reproduction apparatus, and optical recording apparatus equipped with the same |
US6567355B2 (en) * | 1999-12-03 | 2003-05-20 | Hitachi, Ltd. | Optical detector, optical pickup and optical information reproducing apparatus using optical pickup |
JP4370658B2 (ja) * | 2000-02-22 | 2009-11-25 | ソニー株式会社 | 記録方法及び装置 |
TWI239002B (en) * | 2000-03-10 | 2005-09-01 | Sony Corp | Optical recording/reproducing apparatus, optical head apparatus, optical disc drive apparatus, tracking control method for use therein, and optical disc |
US6914875B2 (en) * | 2000-06-22 | 2005-07-05 | Tdk Corporation | Optical recording medium and optical recording method |
WO2002005272A1 (en) * | 2000-06-23 | 2002-01-17 | Koninklijke Philips Electronics N.V. | Device for recording and/or reproducing an optical record carrier |
JP3811337B2 (ja) * | 2000-07-28 | 2006-08-16 | 富士通株式会社 | 情報記憶装置 |
KR100408401B1 (ko) * | 2001-02-23 | 2003-12-06 | 삼성전자주식회사 | 광 기록/재생기기 및 트랙킹 에러신호 검출방법 |
JP4251524B2 (ja) * | 2001-03-07 | 2009-04-08 | パイオニア株式会社 | 光ピックアップ装置 |
KR100475589B1 (ko) * | 2002-09-03 | 2005-03-10 | 금오수 | 크레인과 차량간의 위치인식 및 제동시스템 |
KR100464441B1 (ko) * | 2002-12-28 | 2005-01-03 | 삼성전자주식회사 | 신호 검출 방법 및 장치 및 이를 적용한 광기록 및/또는재생기기 |
JP3786367B2 (ja) * | 2003-06-25 | 2006-06-14 | 船井電機株式会社 | 光ピックアップ装置 |
KR100557542B1 (ko) * | 2004-04-08 | 2006-03-03 | 삼성전기주식회사 | 트래킹 에러 오프셋 보상용 광검출 영역이 형성된 광픽업장치 |
WO2006118082A1 (ja) * | 2005-04-27 | 2006-11-09 | Matsushita Electric Industrial Co., Ltd. | 光ヘッド装置および光情報処理装置 |
JP2007257805A (ja) * | 2006-03-27 | 2007-10-04 | Hitachi Media Electoronics Co Ltd | 光学素子送り装置およびそれを用いた光ピックアップ装置 |
US7933182B2 (en) * | 2006-12-13 | 2011-04-26 | Canon Kabushiki Kaisha | Optical information recording and reproducing apparatus that sets a movable range of an objective lens based on the type of recording medium |
JP2009110558A (ja) * | 2007-10-26 | 2009-05-21 | Sanyo Electric Co Ltd | 光ピックアップ装置 |
US8503276B2 (en) * | 2009-12-30 | 2013-08-06 | Mediatek Inc. | Optical disk drive and method for determining type of a blu-ray disk |
JP2011192330A (ja) * | 2010-03-12 | 2011-09-29 | Panasonic Corp | 光ディスクの再生方法 |
KR20120054385A (ko) * | 2010-11-19 | 2012-05-30 | 도시바삼성스토리지테크놀러지코리아 주식회사 | 광 픽업 장치 및 이를 적용하는 광 디스크 드라이브 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4773052A (en) | 1984-09-20 | 1988-09-20 | Pioneer Electronic Corporation | Dual mode disk player/recorder |
DE3672426D1 (de) * | 1985-09-27 | 1990-08-09 | Sharp Kk | Spurnachlaufverfahren fuer eine optische speicherplatte. |
JP2745665B2 (ja) * | 1989-04-14 | 1998-04-28 | ソニー株式会社 | 光学式記録再生装置のデトラック検出方法 |
JPH0748263B2 (ja) * | 1989-06-27 | 1995-05-24 | 三菱電機株式会社 | 光記録再生装置 |
JPH0354740A (ja) * | 1989-07-24 | 1991-03-08 | Matsushita Electric Ind Co Ltd | 光学情報記録部材および光学情報記録再生装置 |
JP2870127B2 (ja) * | 1990-05-31 | 1999-03-10 | ソニー株式会社 | トラッキング制御方法 |
US5235581A (en) * | 1990-08-09 | 1993-08-10 | Matsushita Electric Industrial Co., Ltd. | Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses |
JPH0765394A (ja) * | 1993-08-27 | 1995-03-10 | Fujitsu Ltd | 光ディスク装置 |
JPH0896387A (ja) | 1994-09-27 | 1996-04-12 | Canon Inc | 光学的情報記録再生装置 |
JP3519804B2 (ja) * | 1994-11-10 | 2004-04-19 | オリンパス株式会社 | 光ピックアップ装置 |
JPH08329490A (ja) * | 1995-05-31 | 1996-12-13 | Pioneer Electron Corp | トラッキングエラー信号生成装置 |
AU714000B2 (en) * | 1995-06-12 | 1999-12-16 | Sony Corporation | Optical pickup |
-
1996
- 1996-06-06 AU AU55807/96A patent/AU714000B2/en not_active Ceased
- 1996-06-07 MY MYPI96002310A patent/MY116529A/en unknown
- 1996-06-10 CA CA002178685A patent/CA2178685A1/en not_active Abandoned
- 1996-06-11 US US08/661,459 patent/US6222803B1/en not_active Expired - Fee Related
- 1996-06-11 KR KR1019960020690A patent/KR100464762B1/ko not_active IP Right Cessation
- 1996-06-12 ES ES96401271T patent/ES2149435T3/es not_active Expired - Lifetime
- 1996-06-12 CN CN96110302A patent/CN1103991C/zh not_active Expired - Fee Related
- 1996-06-12 DE DE69609902T patent/DE69609902T2/de not_active Expired - Fee Related
- 1996-06-12 AT AT96401271T patent/ATE195829T1/de not_active IP Right Cessation
- 1996-06-12 BR BR9602750A patent/BR9602750A/pt not_active Application Discontinuation
- 1996-06-12 EP EP96401271A patent/EP0749118B1/en not_active Expired - Lifetime
-
2001
- 2001-03-29 US US09/819,794 patent/US6366543B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2178685A1 (en) | 1996-12-13 |
EP0749118A3 (en) | 1997-11-05 |
MX9602266A (es) | 1997-10-31 |
BR9602750A (pt) | 1998-09-08 |
EP0749118A2 (en) | 1996-12-18 |
AU5580796A (en) | 1997-01-02 |
KR100464762B1 (ko) | 2005-05-03 |
MY116529A (en) | 2004-02-28 |
EP0749118B1 (en) | 2000-08-23 |
US6366543B2 (en) | 2002-04-02 |
ATE195829T1 (de) | 2000-09-15 |
DE69609902D1 (de) | 2000-09-28 |
DE69609902T2 (de) | 2001-03-22 |
CN1148236A (zh) | 1997-04-23 |
KR970002934A (ko) | 1997-01-28 |
US20010019520A1 (en) | 2001-09-06 |
CN1103991C (zh) | 2003-03-26 |
US6222803B1 (en) | 2001-04-24 |
AU714000B2 (en) | 1999-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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