TW200606909A - Optical pickup and optical disc apparatus - Google Patents

Optical pickup and optical disc apparatus

Info

Publication number
TW200606909A
TW200606909A TW094114583A TW94114583A TW200606909A TW 200606909 A TW200606909 A TW 200606909A TW 094114583 A TW094114583 A TW 094114583A TW 94114583 A TW94114583 A TW 94114583A TW 200606909 A TW200606909 A TW 200606909A
Authority
TW
Taiwan
Prior art keywords
optical
optical path
conversion element
bypass
collimator lens
Prior art date
Application number
TW094114583A
Other languages
English (en)
Other versions
TWI305914B (en
Inventor
Kenji Yamamoto
Katsutoshi Sato
Noriaki Nishi
Midori Kanaya
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of TW200606909A publication Critical patent/TW200606909A/zh
Application granted granted Critical
Publication of TWI305914B publication Critical patent/TWI305914B/zh

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
    • G11B7/135—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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • 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
    • G11B7/1372—Lenses
    • G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
    • 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)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
TW094114583A 2004-05-14 2005-05-05 Optical pickup and optical disc apparatus TWI305914B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004144837 2004-05-14
JP2005114380A JP2005353259A (ja) 2004-05-14 2005-04-12 光ピックアップ、光ディスク装置及び光学倍率調整方法

Publications (2)

Publication Number Publication Date
TW200606909A true TW200606909A (en) 2006-02-16
TWI305914B TWI305914B (en) 2009-02-01

Family

ID=35425092

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094114583A TWI305914B (en) 2004-05-14 2005-05-05 Optical pickup and optical disc apparatus

Country Status (4)

Country Link
US (1) US7483357B2 (zh)
JP (1) JP2005353259A (zh)
KR (1) KR20060047830A (zh)
TW (1) TWI305914B (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007066453A (ja) * 2005-08-31 2007-03-15 Mitsumi Electric Co Ltd 光ピックアップ装置
US20080219111A1 (en) * 2005-09-09 2008-09-11 Koninklijke Philips Electronics, N.V. Drive and Method of Operating the Drive and an Optical Data Carrier Therefore
WO2009057210A1 (ja) * 2007-10-31 2009-05-07 Fujitsu Limited ホログラム記録装置
JP2011150775A (ja) * 2009-12-21 2011-08-04 Sanyo Electric Co Ltd 光ピックアップ装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2634243A1 (de) * 1976-07-30 1978-02-02 Bosch Gmbh Robert System zur aufzeichnung und/oder wiedergabe von signalen mittels strahlen
JPS60123160A (ja) * 1983-12-06 1985-07-01 Dainippon Screen Mfg Co Ltd 走査ビーム径切換装置
JP3663456B2 (ja) 1996-12-28 2005-06-22 日本ビクター株式会社 Ｃｄ／ｄｖｄ互換再生ピックアップ装置
US6834036B1 (en) * 1998-10-28 2004-12-21 Matsushita Electric Industrial Co., Ltd. Optical head for a plurality of types of information recording media
JP3724290B2 (ja) * 1999-11-18 2005-12-07 株式会社日立製作所 光ヘッド、及び、それを用いた光学的情報記録再生装置
CN1248209C (zh) * 2001-04-05 2006-03-29 皇家菲利浦电子有限公司 光学扫描装置
JP4300731B2 (ja) * 2001-12-04 2009-07-22 ソニー株式会社 光記録媒体駆動装置及び光記録媒体記録再生方法
JP2003287675A (ja) * 2002-01-22 2003-10-10 Konica Corp 集光光学系、光ピックアップ装置、記録・再生装置、収差補正素子及び対物レンズ
US7577077B2 (en) * 2002-09-05 2009-08-18 Konica Corporation Optical pickup apparatus and optical element
JP2004288346A (ja) * 2002-10-18 2004-10-14 Konica Minolta Holdings Inc 光ピックアップ装置用の光学素子、カップリングレンズ及び光ピックアップ装置
CN1326132C (zh) * 2002-10-28 2007-07-11 松下电器产业株式会社 半导体激光驱动装置、光学头装置以及光信息处理装置
US7443778B2 (en) * 2003-02-27 2008-10-28 Matsushita Electric Industrial Co., Ltd. Optical head device and optical information device using the same, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server
KR100494475B1 (ko) * 2003-05-21 2005-06-10 삼성전기주식회사 광 픽업 및 이를 이용한 광 기록재생장치
SG110178A1 (en) * 2003-09-30 2005-04-28 Konica Minolta Opto Inc Optical pick-up system, optical pick-up device, and optical information recording and/or reproducing apparatus

Also Published As

Publication number Publication date
KR20060047830A (ko) 2006-05-18
TWI305914B (en) 2009-02-01
US7483357B2 (en) 2009-01-27
JP2005353259A (ja) 2005-12-22
US20050265207A1 (en) 2005-12-01

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