CN1187000A - 物镜以及采用该物镜的光学头和光盘装置 - Google Patents
物镜以及采用该物镜的光学头和光盘装置 Download PDFInfo
- Publication number
- CN1187000A CN1187000A CN97126173A CN97126173A CN1187000A CN 1187000 A CN1187000 A CN 1187000A CN 97126173 A CN97126173 A CN 97126173A CN 97126173 A CN97126173 A CN 97126173A CN 1187000 A CN1187000 A CN 1187000A
- Authority
- CN
- China
- Prior art keywords
- light
- light beam
- flat board
- light transmission
- transmission flat
- 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.)
- Granted
Links
Images
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
- 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
- G11B7/13—Optical detectors therefor
-
- 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
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
-
- 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
- G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
- G11B7/1367—Stepped phase plates
-
- 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
- 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
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
- G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
-
- 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
- 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
- G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Abstract
Description
Claims (22)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP308957/96 | 1996-11-20 | ||
JP308957/1996 | 1996-11-20 | ||
JP30895796 | 1996-11-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1187000A true CN1187000A (zh) | 1998-07-08 |
CN1154990C CN1154990C (zh) | 2004-06-23 |
Family
ID=17987284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB971261733A Expired - Fee Related CN1154990C (zh) | 1996-11-20 | 1997-11-20 | 特镜和光学头以及采用该光学头的光盘记录/再现装置 |
Country Status (6)
Country | Link |
---|---|
US (2) | US6069860A (zh) |
EP (1) | EP0844606B1 (zh) |
KR (1) | KR19980042630A (zh) |
CN (1) | CN1154990C (zh) |
DE (1) | DE69716219T2 (zh) |
TW (1) | TW486692B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101490755B (zh) * | 2006-07-21 | 2012-03-28 | 松下电器产业株式会社 | 光头装置、光信息装置、计算机、盘播放器、车载导航系统、光盘记录器及车辆 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6449235B1 (en) * | 1998-04-04 | 2002-09-10 | Lg Electronics, Inc. | Optical pick-up apparatus and optical recording/reproducing apparatus using the same |
US6088322A (en) * | 1998-05-07 | 2000-07-11 | Broome; Barry G. | Single objective lens for use with CD or DVD optical disks |
JP3638210B2 (ja) * | 1998-06-15 | 2005-04-13 | シャープ株式会社 | ホログラムレーザユニット及びそれを使用した光ピックアップ装置 |
EP0984440A3 (en) | 1998-09-04 | 2000-05-24 | Matsushita Electric Industrial Co., Ltd. | Aberration detection device and optical information recording and reproducing apparatus |
JP2000206405A (ja) * | 1999-01-14 | 2000-07-28 | Pioneer Electronic Corp | 非球面対物レンズ及びその製造方法 |
EP1122573A4 (en) * | 1999-06-23 | 2005-07-20 | Matsushita Electronics Corp | OPTICAL DISK OBJECTIVE, OPTICAL HEAD DEVICE, AND OPTICAL INFORMATION RECORDING / REPRODUCING APPARATUS, LENS FORMING MOLD, MOLD MILLING AND LENS FORMING METHOD, AND SHAPE MEASURING INSTRUMENT |
EP1096415A1 (en) * | 1999-10-26 | 2001-05-02 | Datalogic S.P.A. | Optical device, lens and optical element for focusing a laser beam and apparatus and method for assembling the optical device |
JP4085812B2 (ja) * | 2000-09-06 | 2008-05-14 | 株式会社日立製作所 | 光ヘッドおよび光ディスク装置 |
EP1341166B1 (en) * | 2002-02-27 | 2008-06-04 | Ricoh Company, Ltd. | Optical pickup for different wavelengths |
KR100595775B1 (ko) * | 2002-07-16 | 2006-06-30 | 후지쯔 가부시끼가이샤 | 다층 광기록 매체 및 기억 장치 |
JP2007073094A (ja) * | 2005-09-05 | 2007-03-22 | Konica Minolta Opto Inc | 光ピックアップ装置 |
US7907499B2 (en) * | 2006-07-26 | 2011-03-15 | Konica Minolta Holdings, Inc. | Optical element, optical element manufacturing method and optical pickup device |
WO2008044601A1 (fr) * | 2006-10-10 | 2008-04-17 | Panasonic Corporation | Dispositif de lecture optique, dispositif d'informations optiques, ordinateur, lecteur de disque optique, système de navigation automobile, enregistreur de disque optique et serveur de disque optique |
EP1936618A3 (en) * | 2006-12-18 | 2008-08-06 | Sanyo Electric Co., Ltd. | Optical pickup having optical path length correction function |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US5281797A (en) * | 1991-12-26 | 1994-01-25 | Hitachi, Ltd. | Short wavelength optical disk head having a changeable aperture |
JP2559006B2 (ja) * | 1993-01-13 | 1996-11-27 | 松下電器産業株式会社 | 光ヘッド |
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 |
JP3309470B2 (ja) * | 1993-03-10 | 2002-07-29 | 松下電器産業株式会社 | 光情報記録再生装置 |
DE69512754T2 (de) * | 1994-12-26 | 2000-06-21 | Kabushiki Kaisha Toshiba, Kawasaki | Blendenvorrichtung für Objektivlinse |
JPH08248307A (ja) * | 1995-03-10 | 1996-09-27 | Sony Corp | 対物レンズ、光ヘッド装置及び光ディスク再生装置 |
JP2995003B2 (ja) * | 1995-05-08 | 1999-12-27 | 三洋電機株式会社 | 光学式再生装置 |
JP3476989B2 (ja) * | 1995-08-04 | 2003-12-10 | パイオニア株式会社 | 光ピックアップ |
KR100234257B1 (ko) * | 1995-08-30 | 1999-12-15 | 윤종용 | 대물렌즈 장치 및 안정된 포커스 서보 신호를 얻는방법 및 이를 적용한 광픽업 장치 및 두께가 다른 디스크를 판별하는 방법 및 두께가 다른 디스크로부터 정보를 재생하고 기록하는 방법 |
TW319833B (zh) | 1995-08-30 | 1997-11-11 | Samsung Electronics Co Ltd | |
KR100239237B1 (ko) * | 1995-09-12 | 2000-01-15 | 가나이 쓰도무 | 광디스크장치 및 그의 광헤드 |
JP2877044B2 (ja) * | 1995-09-29 | 1999-03-31 | 日本電気株式会社 | 光ヘッド装置 |
KR100206771B1 (ko) * | 1995-12-29 | 1999-07-01 | 구자홍 | 광픽업장치 |
US5659533A (en) * | 1996-07-23 | 1997-08-19 | Sampo Corporation | Method of using a single pick-up head to read and store data on discs of different thicknesses and structure of a pick-up head apparatus therefor |
-
1997
- 1997-11-18 DE DE69716219T patent/DE69716219T2/de not_active Expired - Fee Related
- 1997-11-18 EP EP97120197A patent/EP0844606B1/en not_active Expired - Lifetime
- 1997-11-18 US US08/972,913 patent/US6069860A/en not_active Expired - Fee Related
- 1997-11-19 TW TW086117290A patent/TW486692B/zh active
- 1997-11-20 KR KR1019970061463A patent/KR19980042630A/ko active Search and Examination
- 1997-11-20 CN CNB971261733A patent/CN1154990C/zh not_active Expired - Fee Related
-
2000
- 2000-04-14 US US09/550,648 patent/US6272099B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101490755B (zh) * | 2006-07-21 | 2012-03-28 | 松下电器产业株式会社 | 光头装置、光信息装置、计算机、盘播放器、车载导航系统、光盘记录器及车辆 |
Also Published As
Publication number | Publication date |
---|---|
DE69716219T2 (de) | 2003-04-17 |
KR19980042630A (ko) | 1998-08-17 |
US6069860A (en) | 2000-05-30 |
EP0844606B1 (en) | 2002-10-09 |
US6272099B1 (en) | 2001-08-07 |
CN1154990C (zh) | 2004-06-23 |
EP0844606A1 (en) | 1998-05-27 |
DE69716219D1 (de) | 2002-11-14 |
TW486692B (en) | 2002-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CI01 | Correction of invention patent gazette |
Correction item: Denomination of Invention Correct: Objective lens and optical head, and optical disk recording / reproducing device using the same False: Special mirror and optical head and optical disk recording / reproducing device using the same Number: 25 Page: 468 Volume: 20 |
|
CI03 | Correction of invention patent |
Correction item: Denomination of Invention Correct: Objective lens and optical head, and optical disk recording / reproducing device using the same False: Special mirror and optical head and optical disk recording / reproducing device using the same Number: 25 Page: The title page Volume: 20 |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTION NAME; FROM: SPECIAL LENS AND OPTICAL HEAD AND THE USE OF THE OPTICAL HEAD CD-ROMRECORDING / REPRODUCTION DEVICE TO: OBJECTIVE LENS AND OPTICAL HEAD AND THE USE OF THE OPTICAL HEAD CD-ROM RECORDING / REPRODUCTION DEVICE |
|
ERR | Gazette correction |
Free format text: CORRECT: INVENTION NAME; FROM: SPECIAL LENS AND OPTICAL HEAD AND THE USE OF THE OPTICAL HEAD CD-ROMRECORDING / REPRODUCTION DEVICE TO: OBJECTIVE LENS AND OPTICAL HEAD AND THE USE OF THE OPTICAL HEAD CD-ROM RECORDING / REPRODUCTION DEVICE |
|
REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1054847 Country of ref document: HK |
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C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040623 |