CN1242395C - 用于对记录载体进行扫描的光头 - Google Patents
用于对记录载体进行扫描的光头 Download PDFInfo
- Publication number
- CN1242395C CN1242395C CNB018045677A CN01804567A CN1242395C CN 1242395 C CN1242395 C CN 1242395C CN B018045677 A CNB018045677 A CN B018045677A CN 01804567 A CN01804567 A CN 01804567A CN 1242395 C CN1242395 C CN 1242395C
- Authority
- CN
- China
- Prior art keywords
- laser beam
- radiation laser
- record carrier
- wavefront
- wavelength
- 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 - Fee Related
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
- G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
-
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
-
- 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
- G11B7/1275—Two or more lasers having different wavelengths
-
- 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
- G11B7/139—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
Abstract
Description
m | {OPDmodλ2}/λ2 |
123456 | 0.83560.67120.50670.34230.17790.0135 |
Streh1比率 | |||
实施例 | 适配区域 | DVD | CD |
Fig.6A | 62 | 0.992 | 0.893 |
Fig.5 | 58-60,62 | 0.932 | 0.922 |
Fig.6B | 54-60,62 | 0.883 | 0.978 |
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00203436.1 | 2000-10-03 | ||
EP00203436 | 2000-10-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1398398A CN1398398A (zh) | 2003-02-19 |
CN1242395C true CN1242395C (zh) | 2006-02-15 |
Family
ID=8172100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB018045677A Expired - Fee Related CN1242395C (zh) | 2000-10-03 | 2001-09-20 | 用于对记录载体进行扫描的光头 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6956807B2 (zh) |
EP (1) | EP1327245B1 (zh) |
JP (1) | JP2004511060A (zh) |
KR (1) | KR100769959B1 (zh) |
CN (1) | CN1242395C (zh) |
AT (1) | ATE373304T1 (zh) |
DE (1) | DE60130476T2 (zh) |
WO (1) | WO2002029798A1 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4666563B2 (ja) * | 2001-04-05 | 2011-04-06 | 中興マーク株式会社 | 光走査装置 |
JP2004252135A (ja) * | 2002-08-28 | 2004-09-09 | Konica Minolta Holdings Inc | 光ピックアップ装置用の対物レンズ、光ピックアップ装置及び光情報記録再生装置 |
US7564763B2 (en) | 2003-07-09 | 2009-07-21 | Koninklijke Phililps Electronics N.V. | Optical arrangement |
JP5007196B2 (ja) * | 2007-10-22 | 2012-08-22 | 株式会社日立メディアエレクトロニクス | 光ピックアップ装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69635559T2 (de) * | 1995-06-05 | 2006-06-14 | Nec Corp | Optische Wiedergabekopfvorrichtung für verschiedene Plattentypen |
JP3484038B2 (ja) * | 1997-03-13 | 2004-01-06 | 株式会社日立製作所 | 対物レンズおよびそれを用いた光ヘッド |
JPH10334504A (ja) * | 1997-05-29 | 1998-12-18 | Nec Corp | 光ヘッド装置 |
JPH11194207A (ja) * | 1997-12-26 | 1999-07-21 | Fuji Photo Optical Co Ltd | 回折型フィルタ |
TW479253B (en) * | 1998-12-17 | 2002-03-11 | Konishiroku Photo Ind | Objective lens for correcting chromatic aberration for use in recording toor reproducing from optical information recording medium and optical pickup apparatus therewith |
US6760295B1 (en) * | 1999-01-08 | 2004-07-06 | Pentax Corporation | Optical pick-up |
JP2001093179A (ja) * | 1999-09-21 | 2001-04-06 | Pioneer Electronic Corp | 光ピックアップ |
US6594222B2 (en) * | 1999-12-28 | 2003-07-15 | Pentax Corporation | Objective lens for optical pick-up |
TW490589B (en) * | 2000-05-24 | 2002-06-11 | Konishiroku Photo Ind | Optical pickup apparatus, objective lens, apparatus for reproducing and/or recording optical information recording medium |
JP4595184B2 (ja) * | 2000-10-02 | 2010-12-08 | コニカミノルタホールディングス株式会社 | 光ピックアップ装置及び対物レンズ |
-
2001
- 2001-09-20 DE DE60130476T patent/DE60130476T2/de not_active Expired - Fee Related
- 2001-09-20 JP JP2002533290A patent/JP2004511060A/ja active Pending
- 2001-09-20 KR KR1020027006984A patent/KR100769959B1/ko not_active IP Right Cessation
- 2001-09-20 EP EP01974269A patent/EP1327245B1/en not_active Expired - Lifetime
- 2001-09-20 WO PCT/EP2001/010857 patent/WO2002029798A1/en active IP Right Grant
- 2001-09-20 AT AT01974269T patent/ATE373304T1/de not_active IP Right Cessation
- 2001-09-20 CN CNB018045677A patent/CN1242395C/zh not_active Expired - Fee Related
- 2001-10-02 US US09/968,994 patent/US6956807B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1327245A1 (en) | 2003-07-16 |
KR20020064916A (ko) | 2002-08-10 |
US20020110078A1 (en) | 2002-08-15 |
KR100769959B1 (ko) | 2007-10-25 |
ATE373304T1 (de) | 2007-09-15 |
EP1327245B1 (en) | 2007-09-12 |
CN1398398A (zh) | 2003-02-19 |
JP2004511060A (ja) | 2004-04-08 |
DE60130476T2 (de) | 2008-06-12 |
WO2002029798A1 (en) | 2002-04-11 |
US6956807B2 (en) | 2005-10-18 |
DE60130476D1 (de) | 2007-10-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: ZHONGXING MAGU JAPAN CO., LTD. Free format text: FORMER OWNER: ROYAL PHILIPS ELECTRONICS CO., LTD. Effective date: 20100309 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: EINDHOVEN, NETHERLANDS TO: NAGAI, YAMAGATA PREFECTURE, JAPAN |
|
TR01 | Transfer of patent right |
Effective date of registration: 20100309 Address after: Japan Yamagata nagayi City Patentee after: Koninkl Philips Electronics NV Address before: Holland Ian Deho Finn Patentee before: Koninklike Philips Electronics N. V. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060215 Termination date: 20130920 |