TWI268503B - Optical pickup and optical disk apparatus - Google Patents
Optical pickup and optical disk apparatusInfo
- Publication number
- TWI268503B TWI268503B TW094132670A TW94132670A TWI268503B TW I268503 B TWI268503 B TW I268503B TW 094132670 A TW094132670 A TW 094132670A TW 94132670 A TW94132670 A TW 94132670A TW I268503 B TWI268503 B TW I268503B
- Authority
- TW
- Taiwan
- Prior art keywords
- disk
- laser light
- objective lens
- collecting
- optical
- 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
- G11B7/12—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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
-
- 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
- G11B7/1395—Beam splitters or combiners
-
- 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 |
---|---|---|---|
JP2004274604 | 2004-09-22 | ||
JP2004322338A JP2006134474A (ja) | 2004-11-05 | 2004-11-05 | 光ピックアップ及び光ディスクドライブ |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200625293A TW200625293A (en) | 2006-07-16 |
TWI268503B true TWI268503B (en) | 2006-12-11 |
Family
ID=36145110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094132670A TWI268503B (en) | 2004-09-22 | 2005-09-21 | Optical pickup and optical disk apparatus |
Country Status (3)
Country | Link |
---|---|
US (1) | US7564745B2 (zh) |
KR (1) | KR20060051541A (zh) |
TW (1) | TWI268503B (zh) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2006064735A1 (ja) * | 2004-12-16 | 2008-06-12 | ソニー株式会社 | 光ピックアップ装置及びこの光ピックアップ装置を用いた光ディスク装置並びにその制御方法 |
US8144564B2 (en) * | 2005-12-14 | 2012-03-27 | Panasonic Corporation | Optical head and optical information device |
JP4539556B2 (ja) * | 2005-12-28 | 2010-09-08 | パナソニック株式会社 | 光ピックアップ装置及び光ディスク装置 |
JP4522388B2 (ja) * | 2006-04-03 | 2010-08-11 | 三洋電機株式会社 | 対物レンズ駆動装置及びそれを具備した光ピックアップ装置 |
JP4521376B2 (ja) * | 2006-06-02 | 2010-08-11 | 株式会社日立メディアエレクトロニクス | 光学ヘッドおよびそれを用いたディスク駆動装置 |
JP2008027565A (ja) | 2006-06-21 | 2008-02-07 | Sharp Corp | 光ピックアップ |
CN101140772B (zh) * | 2006-09-07 | 2012-10-10 | 松下电器产业株式会社 | 光学头和光盘装置 |
JP5069893B2 (ja) * | 2006-10-18 | 2012-11-07 | 株式会社日立メディアエレクトロニクス | 光ピックアップ及び光ディスクドライブ |
JP4357557B2 (ja) * | 2006-12-27 | 2009-11-04 | 株式会社東芝 | 光ヘッド,および光ディスク装置 |
JP2008181626A (ja) * | 2007-01-26 | 2008-08-07 | Funai Electric Co Ltd | 光ピックアップ |
JP5042782B2 (ja) * | 2007-11-07 | 2012-10-03 | 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及びこれを備えた光ディスク装置 |
JP5121762B2 (ja) * | 2009-03-19 | 2013-01-16 | 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 |
JP2012064259A (ja) * | 2010-09-14 | 2012-03-29 | Sanyo Electric Co Ltd | 光ピックアップ装置 |
KR101533373B1 (ko) * | 2014-07-16 | 2015-07-02 | (주)아이엠 | 광- 픽업 장치 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100278786B1 (ko) * | 1998-06-18 | 2001-01-15 | 구자홍 | 광기록매체와 광 기록/재생 방법 및 장치 |
TW432378B (en) | 1999-04-13 | 2001-05-01 | Ind Tech Res Inst | A multiple-wavelength read/write pickup head for DVD |
JP3547000B2 (ja) * | 2000-05-30 | 2004-07-28 | シャープ株式会社 | 光ピックアップ装置 |
JP4175092B2 (ja) * | 2002-11-06 | 2008-11-05 | 日本電気株式会社 | 光ヘッド装置および光学式情報記録再生装置 |
TWI346952B (en) * | 2003-07-07 | 2011-08-11 | Panasonic Corp | Objective lens, optical pick-up device, and optical disk device |
-
2005
- 2005-09-21 US US11/230,675 patent/US7564745B2/en not_active Expired - Fee Related
- 2005-09-21 TW TW094132670A patent/TWI268503B/zh not_active IP Right Cessation
- 2005-09-22 KR KR1020050088307A patent/KR20060051541A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US20060077784A1 (en) | 2006-04-13 |
TW200625293A (en) | 2006-07-16 |
US7564745B2 (en) | 2009-07-21 |
KR20060051541A (ko) | 2006-05-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI268503B (en) | Optical pickup and optical disk apparatus | |
TWI266893B (en) | Beam focusing and scanning system using micromirror array lens | |
WO2007027803A3 (en) | Systems and methods for providing illumination of a specimen for inspection | |
TW200605055A (en) | Objective optical system for optical pickup apparatus, optical pickup apparatus, driving apparatus for optical information recording medium, condenser lens and optical path compounding element | |
TW200501127A (en) | Optical pickup device and objective lens for the optical pickup device | |
EP1688937A3 (en) | Optical pickup apparatus which is compatible with multiple types of media | |
EP1117096A3 (en) | Optical pickup | |
TW200608059A (en) | Optical pickup and apparatus for recording and/or reproducing optical recording medium | |
ATE408166T1 (de) | Autofokusadapter | |
TW200641864A (en) | Objective lens, optical pickup apparatus and optical information recording and/or reproducing apparatus | |
EP1174865A3 (en) | Compatible optical pickup | |
EP1130581A3 (en) | Compatible optical pickup for high-density recording/reproduction | |
TW200725605A (en) | Method and unit for separating light and optical pickup device and optical recording/playback apparatus based thereon | |
TW200605056A (en) | Optical pickup and recording and/or reproducing apparatus using same | |
WO2003079338A3 (en) | Control method for focus and tracking in pickup apparatus | |
WO2008126195A1 (ja) | ホログラム記録装置 | |
EP1942500A3 (en) | Unit to remove crosstalk in multi-layered disk, optical pickup including the unit, and optical recording and/or reproducing apparatus including the optical pickup | |
TW200710841A (en) | Compatible optical pickup and optical recording and/or reproducing apparatus employing the same | |
EP1898404A3 (en) | Optical pickup apparatus | |
TW200614193A (en) | Optical disc apparatus | |
TW200606909A (en) | Optical pickup and optical disc apparatus | |
EP1115110A3 (en) | Optical pickup apparatus | |
TW200500633A (en) | Converging optical system of optical pickup device | |
EP1708184A3 (en) | Optical pickup, optical recording and/or reproducing apparatus using the same, and method for detecting tracking error signal | |
EP1115111A3 (en) | Optical pickup |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |