MX9804233A - Dispositivo para la escritura y/o lectura de medios de grabacion optica de diversas estructuras. - Google Patents
Dispositivo para la escritura y/o lectura de medios de grabacion optica de diversas estructuras.Info
- Publication number
- MX9804233A MX9804233A MX9804233A MX9804233A MX9804233A MX 9804233 A MX9804233 A MX 9804233A MX 9804233 A MX9804233 A MX 9804233A MX 9804233 A MX9804233 A MX 9804233A MX 9804233 A MX9804233 A MX 9804233A
- Authority
- MX
- Mexico
- Prior art keywords
- optical recording
- reading
- writing
- recording media
- various structures
- Prior art date
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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- 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
- G11B7/1372—Lenses
- G11B7/1374—Objective 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
- G11B7/139—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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Abstract
La presente invencion se refiere a un dispositivo para la lectura y/o escritura de medios de grabacion optica (AT) de varias estructuras, cuyo dispositivo funciona con una lente objetivo individual OL. La invencion propone el uso de un diafragma que varía el diámetro, en particular un filtro polarizador dispuesto en la trayectoriaoptica con el fin de adaptar la abertura a cada tipo de medio de grabacion optica (AT) usado. El frente de onda puede corregirse usando una lente divergente (SL) que también puede colocarse en la trayectoria del haz. El diafragma formado mediante el filtro polarizador PF se vincula a la lente objetivo (OL). El campo de aplicacion de la invencion se refiere, en particular, a dispositivos para leer y/o escribir medios de grabacion optica (AT) de varias estructuras tales como discos compactos y discos de video digitales.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19544966A DE19544966A1 (de) | 1995-12-04 | 1995-12-04 | Gerät zum Beschreiben und/oder Lesen optischer Aufzeichnungsträger unterschiedlichen Aufbaus |
Publications (1)
Publication Number | Publication Date |
---|---|
MX9804233A true MX9804233A (es) | 1998-09-30 |
Family
ID=7779000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9804233A MX9804233A (es) | 1995-12-04 | 1998-05-28 | Dispositivo para la escritura y/o lectura de medios de grabacion optica de diversas estructuras. |
Country Status (12)
Country | Link |
---|---|
US (1) | US6400670B1 (es) |
EP (1) | EP0867023B1 (es) |
JP (1) | JP2000501545A (es) |
KR (1) | KR100486818B1 (es) |
CN (1) | CN1114907C (es) |
AU (1) | AU7696296A (es) |
DE (2) | DE19544966A1 (es) |
ES (1) | ES2194120T3 (es) |
HK (1) | HK1015935A1 (es) |
MX (1) | MX9804233A (es) |
MY (1) | MY123767A (es) |
WO (1) | WO1997021215A1 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6665257B2 (en) * | 1996-06-18 | 2003-12-16 | Matsushita Electric Industrial Co., Ltd. | Optical head device, inclination detection apparatus using the same, and optical information processing apparatus using the same |
CN1327423C (zh) * | 1998-11-09 | 2007-07-18 | 松下电器产业株式会社 | 光信息处理装置和光学元件 |
KR100756767B1 (ko) * | 1999-03-15 | 2007-09-07 | 마츠시타 덴끼 산교 가부시키가이샤 | 집속소자, 광헤드, 광정보 기록재생장치 및 광정보기록재생방법 |
TW522395B (en) | 2000-07-10 | 2003-03-01 | Koninkl Philips Electronics Nv | Optical scanning device |
KR100536680B1 (ko) * | 2003-05-31 | 2005-12-14 | 주식회사 대우일렉트로닉스 | 홀로그래픽 롬 시스템 |
KR100648516B1 (ko) * | 2004-03-09 | 2006-11-24 | 주식회사 애트랩 | 광 포인팅 장치 |
JP2006190353A (ja) * | 2004-12-28 | 2006-07-20 | Toshiba Samsung Storage Technology Corp | 光学ヘッドおよび光ディスク装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3237217A1 (de) * | 1982-10-07 | 1984-04-12 | Siemens AG, 1000 Berlin und 8000 München | Blende fuer optische systeme oder geraete |
US4733065A (en) * | 1984-06-27 | 1988-03-22 | Canon Kabushiki Kaisha | Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom |
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 |
US5231624A (en) * | 1991-08-01 | 1993-07-27 | Tandy Corporation | System and method using a reduce profile light beam for high density recording on optical media |
JPH0554414A (ja) * | 1991-08-20 | 1993-03-05 | Sanyo Electric Co Ltd | 光ピツクアツプ装置 |
JPH0777031B2 (ja) * | 1991-10-16 | 1995-08-16 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 収差補償装置 |
JPH05120720A (ja) * | 1991-10-28 | 1993-05-18 | Toshiba Corp | 情報記録・再生装置 |
US5157555A (en) * | 1991-12-04 | 1992-10-20 | General Electric Company | Apparatus for adjustable correction of spherical aberration |
US5281797A (en) * | 1991-12-26 | 1994-01-25 | Hitachi, Ltd. | Short wavelength optical disk head having a changeable aperture |
JPH0620298A (ja) * | 1992-06-30 | 1994-01-28 | Sony Corp | 光ヘツドの開口絞りの大きさを調整する方法とその装置 |
CA2164384C (en) * | 1995-03-04 | 1999-08-17 | Jin-Yong Kim | Optical pick-up apparatus capable of reading data irrespective of disc type |
KR0180649B1 (ko) * | 1995-03-06 | 1999-04-15 | 구자홍 | 이중 포커싱이 가능한 광픽업장치 |
JPH10500526A (ja) * | 1995-03-15 | 1998-01-13 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | 記録媒体を光学的に走査する装置 |
KR960038794A (ko) | 1995-04-14 | 1996-11-21 | 사또오 후미오 | 광학적 정보 재생 장치 |
JPH08321088A (ja) * | 1995-05-25 | 1996-12-03 | Sony Corp | 光学ピックアップ |
US5787061A (en) * | 1995-08-31 | 1998-07-28 | Sanyo Electric Co., Ltd. | Optical disc recording reproducing apparatus recording/reproducing information to/from optical discs according to different standards |
JP2801176B2 (ja) * | 1995-11-15 | 1998-09-21 | エルジー電子株式会社 | 対物レンズ及びそれを具備した光ピックアップ装置 |
US5798994A (en) * | 1996-01-16 | 1998-08-25 | Kamatani; Yasuo | Multi-layered optical disk reading method using liquid crystal diffraction device |
-
1995
- 1995-12-04 DE DE19544966A patent/DE19544966A1/de not_active Withdrawn
-
1996
- 1996-11-22 CN CN96198675A patent/CN1114907C/zh not_active Expired - Fee Related
- 1996-11-22 DE DE59610249T patent/DE59610249D1/de not_active Expired - Lifetime
- 1996-11-22 KR KR10-1998-0704069A patent/KR100486818B1/ko not_active IP Right Cessation
- 1996-11-22 US US09/077,578 patent/US6400670B1/en not_active Expired - Fee Related
- 1996-11-22 AU AU76962/96A patent/AU7696296A/en not_active Abandoned
- 1996-11-22 WO PCT/EP1996/005148 patent/WO1997021215A1/de active IP Right Grant
- 1996-11-22 JP JP9520924A patent/JP2000501545A/ja active Pending
- 1996-11-22 ES ES96939888T patent/ES2194120T3/es not_active Expired - Lifetime
- 1996-11-22 EP EP96939888A patent/EP0867023B1/de not_active Expired - Lifetime
- 1996-12-03 MY MYPI96005063A patent/MY123767A/en unknown
-
1998
- 1998-05-28 MX MX9804233A patent/MX9804233A/es active IP Right Grant
-
1999
- 1999-03-08 HK HK99100924A patent/HK1015935A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1114907C (zh) | 2003-07-16 |
US6400670B1 (en) | 2002-06-04 |
ES2194120T3 (es) | 2003-11-16 |
MY123767A (en) | 2006-06-30 |
EP0867023B1 (de) | 2003-03-19 |
WO1997021215A1 (de) | 1997-06-12 |
HK1015935A1 (en) | 1999-10-22 |
EP0867023A1 (de) | 1998-09-30 |
KR19990071790A (ko) | 1999-09-27 |
CN1203686A (zh) | 1998-12-30 |
KR100486818B1 (ko) | 2005-08-10 |
DE59610249D1 (de) | 2003-04-24 |
JP2000501545A (ja) | 2000-02-08 |
AU7696296A (en) | 1997-06-27 |
DE19544966A1 (de) | 1997-06-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0840156A3 (en) | Objective lens and optical pickup apparatus | |
KR870010499A (ko) | 광학헤드 | |
EP0844605A3 (en) | Optical pickup | |
KR970002955A (ko) | 광픽업용 2위치 결상 대물렌즈 | |
EP1251500A3 (en) | Objective lens, converging optical system, optical pickup apparatus and recording and/or reproducing apparatus | |
EP0991062A4 (en) | OPTICAL READ DEVICE AND DEVICE FOR RECORDING AND / OR REPRODUCING OPTICAL DISCS | |
TW342493B (en) | Digital video disc (DVD) optical head with dual-wavelength laser | |
JPH0217086B2 (es) | ||
MX9804233A (es) | Dispositivo para la escritura y/o lectura de medios de grabacion optica de diversas estructuras. | |
WO2000037982A3 (en) | Optical lens system and scanning device provided with such a system | |
JPS6327685B2 (es) | ||
MY118249A (en) | Optical pickup device and disk player apparatus | |
MY128091A (en) | Objective lens device and optical pickup adopting the same | |
CN1209758C (zh) | 可兼容不同厚度光记录介质的物镜 | |
EP0395832A3 (en) | Optical head | |
WO2009037851A1 (ja) | 光ピックアップ光学系、これを用いた光ピックアップ装置 | |
KR970002954A (ko) | 광픽업용 2위치 결상 대물렌즈 | |
DE69113343D1 (de) | Linse für ein optisches Aufzeichnungs- und Wiedergabegerät für plattenförmige Aufzeichnungsträger. | |
WO2002015114A3 (en) | Apparatuses and methods for reading after writing in optical recording systems | |
TW518587B (en) | Optical pickup device | |
JPH0321973B2 (es) | ||
JPS60243834A (ja) | 光学ヘツド | |
EP0840302A3 (de) | Vorrichtung zur Aufnahme oder Wiedergabe und Verfahren zur Erkennung des Fokussierungszustandes | |
MY116906A (en) | Optical recording and reproducing device | |
JPH10143903A (ja) | 光ピックアップ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration |