ES2177566T3 - Aparato optico para grabacion/reproduccion. - Google Patents
Aparato optico para grabacion/reproduccion.Info
- Publication number
- ES2177566T3 ES2177566T3 ES94309152T ES94309152T ES2177566T3 ES 2177566 T3 ES2177566 T3 ES 2177566T3 ES 94309152 T ES94309152 T ES 94309152T ES 94309152 T ES94309152 T ES 94309152T ES 2177566 T3 ES2177566 T3 ES 2177566T3
- Authority
- ES
- Spain
- Prior art keywords
- light
- optical
- reproduction
- recording
- information
- 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
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
- G11B7/135—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
- G11B11/10502—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 characterised by the transducing operation to be executed
- G11B11/10515—Reproducing
-
- 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
- G11B11/10532—Heads
- G11B11/10541—Heads for reproducing
- G11B11/10543—Heads for reproducing using optical beam of radiation
-
- 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
- G11B11/10532—Heads
- G11B11/10541—Heads for reproducing
- G11B11/10543—Heads for reproducing using optical beam of radiation
- G11B11/10545—Heads for reproducing using optical beam of radiation interacting directly with the magnetisation on the record carrier
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
UN APARATO OPTICO PARA GRABACION/REPRODUCCION INCLUYE UN SISTEMA OPTICO DE IRRADIACION PARA IRRADIAR UN HAZ DE LUZ DESDE UNA FUENTE DE LUZ SOBRE UNA TRAYECTORIA PREDETERMINADA DE UN MEDIO DE GRABACION OPTICO QUE TIENE UNA SERIE DE TRAYECTORIAS VECINAS COMO UN PUNTO LUMINOSO FINO, DE TAL MODO QUE REALIZA GRABACION/REPRODUCCION DE INFORMACION O REPRODUCCION DE INFORMACION, Y UN SISTEMA OPTICO DE DETECCION PARA DETECTAR UN HAZ DE LUZ DEVUELTO POR EL MEDIO DE GRABACION OPTICO. UNA MASCARA ESTA DISPUESTA EN UNA REGION CAMPO DISTANTE SUFICIENTEMENTE SEPARADA DE UN PLANO FOCAL DEL SISTEMA OPTICO DE DETECCION, PARA OCULTAR LOS RAYOS MARGINALES EN UNA DIRECCION PERPENDICULAR A LA TRAYECTORIA DEL HAZ DE LUZ DEVUELTO, DE TAL MODO QUE LA INFORMACION REPRODUCIDA PROCEDENTE DE UNA TRAYECTORIA CONTIGUA A LA TRAYECTORIA PREDETERMINADA ES REDUCIDA RESPECTO A LA REPRODUCCION DE INFORMACION SOBRE LA TRAYECTORIA PREDETERMINADA.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30929693 | 1993-12-09 | ||
JP27787794A JP3413427B2 (ja) | 1993-12-09 | 1994-11-11 | 光記録再生装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2177566T3 true ES2177566T3 (es) | 2002-12-16 |
Family
ID=26552615
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94309152T Expired - Lifetime ES2177566T3 (es) | 1993-12-09 | 1994-12-08 | Aparato optico para grabacion/reproduccion. |
ES01203585T Expired - Lifetime ES2215852T3 (es) | 1993-12-09 | 1994-12-08 | Aparato para grabacion/reproduccion opticas. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES01203585T Expired - Lifetime ES2215852T3 (es) | 1993-12-09 | 1994-12-08 | Aparato para grabacion/reproduccion opticas. |
Country Status (5)
Country | Link |
---|---|
US (3) | US6141302A (es) |
EP (2) | EP0658884B1 (es) |
JP (1) | JP3413427B2 (es) |
DE (2) | DE69430726T2 (es) |
ES (2) | ES2177566T3 (es) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3413427B2 (ja) | 1993-12-09 | 2003-06-03 | キヤノン株式会社 | 光記録再生装置 |
JP3443668B2 (ja) * | 1998-04-30 | 2003-09-08 | 富士通株式会社 | 収差補正方法及び収差補正装置 |
NL1015136C2 (nl) * | 1999-05-10 | 2006-05-18 | Sharp Kk | Optische opname/weergaveinrichting. |
JP2000322757A (ja) | 1999-05-12 | 2000-11-24 | Sharp Corp | 光記録再生装置 |
JP4843844B2 (ja) | 1999-12-27 | 2011-12-21 | ソニー株式会社 | 光ヘッド、受発光素子、及び光記録媒体記録再生装置 |
JP3885444B2 (ja) * | 2000-02-10 | 2007-02-21 | 富士ゼロックス株式会社 | 光読取装置および光記録読取装置 |
US6836451B1 (en) * | 2000-06-12 | 2004-12-28 | Infineon Technologies, Ag | Lensless optical servo system for an optically assisted disk drive |
JP2002025098A (ja) * | 2000-07-07 | 2002-01-25 | Pioneer Electronic Corp | ピックアップ装置 |
JP2004355783A (ja) * | 2003-05-30 | 2004-12-16 | Sharp Corp | 光情報記録媒体とその再生方法 |
US7406007B2 (en) * | 2003-09-02 | 2008-07-29 | Matsushita Electric Industrial Co., Ltd. | Optical disc apparatus and spherical aberration correction controlling apparatus |
JP2005166195A (ja) * | 2003-12-04 | 2005-06-23 | Canon Inc | 光情報記録再生装置及び光情報記録再生方法 |
JP2005346777A (ja) * | 2004-05-31 | 2005-12-15 | Toshiba Corp | 光ディスク装置 |
JP4522829B2 (ja) * | 2004-11-22 | 2010-08-11 | 株式会社リコー | 光ピックアップ及び補正用収差発生方法とこれを用いた光情報処理装置 |
JP2006331471A (ja) * | 2005-05-23 | 2006-12-07 | Canon Inc | 光情報記録再生装置 |
US7680013B2 (en) | 2005-11-29 | 2010-03-16 | Canon Kabushiki Kaisha | Optical information recording and reproducing apparatus |
JP4504319B2 (ja) * | 2006-02-02 | 2010-07-14 | 株式会社日立製作所 | 光情報記録再生装置 |
US7791986B2 (en) * | 2006-03-15 | 2010-09-07 | Canon Kabushiki Kaisha | Optical information recording/reproducing apparatus |
US8135952B2 (en) * | 2006-10-10 | 2012-03-13 | Recursion Ventures LLC | Method and system for secure position determination |
JP4876844B2 (ja) * | 2006-10-17 | 2012-02-15 | ソニー株式会社 | 光ピックアップ及びこれを用いた光ディスク装置 |
FR2928486B1 (fr) * | 2008-03-07 | 2011-08-19 | Commissariat Energie Atomique | Structure de stockage optique a haute densite |
CN111221122B (zh) * | 2020-03-18 | 2022-02-01 | 长春理工大学 | 较大视场强容差超分辨望远成像系统设计方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56116004A (en) * | 1980-02-20 | 1981-09-11 | Olympus Optical Co Ltd | Lens for video disk |
JPS61220146A (ja) * | 1985-03-26 | 1986-09-30 | Aiwa Co Ltd | 光ピツクアツプ装置 |
JPH07101523B2 (ja) * | 1986-09-12 | 1995-11-01 | キヤノン株式会社 | 光磁気信号再生装置 |
JPS63298831A (ja) * | 1987-05-29 | 1988-12-06 | Mitsubishi Electric Corp | 光学式情報読取装置 |
JPH01116930A (ja) * | 1987-10-29 | 1989-05-09 | Canon Inc | 光ビーム位置検出装置 |
DE3913229A1 (de) * | 1988-09-19 | 1990-03-22 | Pioneer Electronic Corp | Wiedergabegeraet fuer optische informationen |
US5172366A (en) * | 1988-09-19 | 1992-12-15 | Pioneer Electronic Corporation | Optical information reproducing apparatus with selective photodetector output |
US5072437A (en) * | 1988-09-19 | 1991-12-10 | Pioneer Electronic Corporation | Optical information reproducing apparatus |
JPH02208835A (ja) * | 1989-02-07 | 1990-08-20 | Matsushita Electric Ind Co Ltd | 光ヘッド |
US5247510A (en) * | 1990-06-29 | 1993-09-21 | Digital Equipment Corporation | Increasing storage density of optical data media by detecting a selected portion of a light spot image corresponding to a single domain |
JPH04324129A (ja) * | 1991-04-23 | 1992-11-13 | Pioneer Electron Corp | 光ヘッド装置 |
TW218427B (es) * | 1991-06-04 | 1994-01-01 | Ibm | |
US5206852A (en) * | 1991-06-29 | 1993-04-27 | Samsung Electronics Co., Ltd. | High-density recording optical head |
DE69229451T2 (de) * | 1991-11-20 | 1999-10-07 | Sony Corp., Tokio/Tokyo | Optische Abtasteinrichtung |
JP3413427B2 (ja) * | 1993-12-09 | 2003-06-03 | キヤノン株式会社 | 光記録再生装置 |
-
1994
- 1994-11-11 JP JP27787794A patent/JP3413427B2/ja not_active Expired - Fee Related
- 1994-12-08 DE DE69430726T patent/DE69430726T2/de not_active Expired - Fee Related
- 1994-12-08 EP EP94309152A patent/EP0658884B1/en not_active Expired - Lifetime
- 1994-12-08 ES ES94309152T patent/ES2177566T3/es not_active Expired - Lifetime
- 1994-12-08 DE DE69433732T patent/DE69433732T2/de not_active Expired - Fee Related
- 1994-12-08 ES ES01203585T patent/ES2215852T3/es not_active Expired - Lifetime
- 1994-12-08 EP EP01203585A patent/EP1174867B1/en not_active Expired - Lifetime
-
1997
- 1997-10-21 US US08/954,875 patent/US6141302A/en not_active Expired - Fee Related
-
2000
- 2000-06-02 US US09/585,611 patent/US6282165B1/en not_active Expired - Fee Related
-
2001
- 2001-07-24 US US09/910,712 patent/US6418109B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1174867B1 (en) | 2004-04-21 |
DE69433732D1 (de) | 2004-05-27 |
US6141302A (en) | 2000-10-31 |
JP3413427B2 (ja) | 2003-06-03 |
EP0658884A1 (en) | 1995-06-21 |
DE69433732T2 (de) | 2005-03-31 |
EP1174867A1 (en) | 2002-01-23 |
US20020015377A1 (en) | 2002-02-07 |
DE69430726T2 (de) | 2002-10-24 |
US6418109B2 (en) | 2002-07-09 |
JPH07220302A (ja) | 1995-08-18 |
US6282165B1 (en) | 2001-08-28 |
EP0658884B1 (en) | 2002-06-05 |
DE69430726D1 (de) | 2002-07-11 |
ES2215852T3 (es) | 2004-10-16 |
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