TW200617930A - Optical device for recording and reproducing - Google Patents
Optical device for recording and reproducingInfo
- Publication number
- TW200617930A TW200617930A TW094121991A TW94121991A TW200617930A TW 200617930 A TW200617930 A TW 200617930A TW 094121991 A TW094121991 A TW 094121991A TW 94121991 A TW94121991 A TW 94121991A TW 200617930 A TW200617930 A TW 200617930A
- Authority
- TW
- Taiwan
- Prior art keywords
- optical branch
- collimator
- beam splitter
- information carrier
- scanning
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title abstract 11
- 230000005855 radiation Effects 0.000 abstract 3
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
- G11B7/1372—Lenses
- G11B7/1376—Collimator 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
- G11B7/125—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
- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04300421 | 2004-07-02 | ||
EP04300441 | 2004-07-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200617930A true TW200617930A (en) | 2006-06-01 |
Family
ID=35056988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094121991A TW200617930A (en) | 2004-07-02 | 2005-06-29 | Optical device for recording and reproducing |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080279081A1 (zh) |
EP (1) | EP1784824A1 (zh) |
JP (1) | JP2008504644A (zh) |
TW (1) | TW200617930A (zh) |
WO (1) | WO2006003552A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010130673A1 (en) * | 2009-05-15 | 2010-11-18 | Asml Netherlands B.V. | Inspection method for lithography |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6819646B1 (en) * | 1999-01-19 | 2004-11-16 | Matsushita Electric Industrial Co., Ltd. | Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus |
JP2004511875A (ja) * | 2000-10-08 | 2004-04-15 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 光走査デバイス |
CN100474417C (zh) * | 2001-11-15 | 2009-04-01 | 三星电子株式会社 | 可兼容的光拾取器 |
TW561466B (en) * | 2001-12-07 | 2003-11-11 | Ind Tech Res Inst | Multi-wavelength optical pickup |
JP4341332B2 (ja) * | 2002-07-31 | 2009-10-07 | 旭硝子株式会社 | 光ヘッド装置 |
-
2005
- 2005-06-22 WO PCT/IB2005/052047 patent/WO2006003552A1/en active Application Filing
- 2005-06-22 US US11/631,352 patent/US20080279081A1/en not_active Abandoned
- 2005-06-22 EP EP05750696A patent/EP1784824A1/en not_active Withdrawn
- 2005-06-22 JP JP2007518755A patent/JP2008504644A/ja active Pending
- 2005-06-29 TW TW094121991A patent/TW200617930A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
JP2008504644A (ja) | 2008-02-14 |
WO2006003552A1 (en) | 2006-01-12 |
EP1784824A1 (en) | 2007-05-16 |
US20080279081A1 (en) | 2008-11-13 |
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