KR20010062063A - 광 픽업 장치 - Google Patents

광 픽업 장치 Download PDF

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Publication number
KR20010062063A
KR20010062063A KR1020000072409A KR20000072409A KR20010062063A KR 20010062063 A KR20010062063 A KR 20010062063A KR 1020000072409 A KR1020000072409 A KR 1020000072409A KR 20000072409 A KR20000072409 A KR 20000072409A KR 20010062063 A KR20010062063 A KR 20010062063A
Authority
KR
South Korea
Prior art keywords
laser beam
light
optical pickup
photodetector
laser
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.)
Ceased
Application number
KR1020000072409A
Other languages
English (en)
Korean (ko)
Inventor
카와무라마코토
다카하시시니치
나가타케히로카츠
요시오카아키
수가노미츠토시
이시이코
미우라아키라
코야마마사유키
Original Assignee
가네오 이토
파이오니아 가부시키가이샤
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 가네오 이토, 파이오니아 가부시키가이샤 filed Critical 가네오 이토
Publication of KR20010062063A publication Critical patent/KR20010062063A/ko
Ceased legal-status Critical Current

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
    • 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
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • 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
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • G11B7/08—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
    • G11B7/0901—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 for track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/0908—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 for focusing only
    • G11B7/0909—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 for focusing only by astigmatic methods

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
KR1020000072409A 1999-12-22 2000-12-01 광 픽업 장치 Ceased KR20010062063A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11-365584 1999-12-22
JP36558499A JP4167370B2 (ja) 1999-12-22 1999-12-22 光ピックアップ装置

Publications (1)

Publication Number Publication Date
KR20010062063A true KR20010062063A (ko) 2001-07-07

Family

ID=18484632

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020000072409A Ceased KR20010062063A (ko) 1999-12-22 2000-12-01 광 픽업 장치

Country Status (3)

Country Link
US (1) US6452880B1 (enExample)
JP (1) JP4167370B2 (enExample)
KR (1) KR20010062063A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040005036A (ko) * 2002-07-08 2004-01-16 삼성전기주식회사 두개의 ｌｄ를 사용하는 ｄｖｄ 플레이어용 광 픽업장치
KR100915490B1 (ko) * 2005-05-26 2009-09-03 미쓰비시덴키 가부시키가이샤 광 픽업 장치, 광 디스크 장치 및 레이저 출력기

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3689296B2 (ja) * 2000-01-24 2005-08-31 パイオニア株式会社 光ピックアップ装置
EP1174865B1 (en) * 2000-07-22 2009-09-30 Samsung Electronics Co., Ltd. Compatible optical pickup
JP2002094168A (ja) * 2000-09-19 2002-03-29 Toshiba Corp 半導体レーザ装置及びその製造方法
CN1173344C (zh) * 2000-10-13 2004-10-27 松下电器产业株式会社 光头装置以及光信息记录装置
HUP0303190A2 (hu) * 2000-10-16 2003-12-29 Konica Corporation Tárgylencse, kapcsoló lencse, fénykonvergáló optikai rendszer és optikai felvevő-lejátszó eszköz
JP2002163837A (ja) * 2000-11-27 2002-06-07 Pioneer Electronic Corp 光ピックアップ装置及びレーザダイオードチップ
KR100498483B1 (ko) * 2003-01-29 2005-07-01 삼성전자주식회사 호환형 광픽업 및 그 광출력량 검출 방법
US8264929B2 (en) * 2003-11-25 2012-09-11 Dell Products L.P. Optical medium recognition system and method with an optical drive having plural lasers
JP4367351B2 (ja) * 2005-02-08 2009-11-18 船井電機株式会社 光ディスク装置
JP2006286079A (ja) * 2005-03-31 2006-10-19 Toshiba Corp 光ヘッド及び光ディスク装置
JP4319181B2 (ja) * 2005-09-08 2009-08-26 シャープ株式会社 光ピックアップ装置および情報記録再生装置
WO2015029466A1 (ja) * 2013-08-28 2015-03-05 三菱重工業株式会社 レーザ加工装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05242512A (ja) * 1991-12-19 1993-09-21 Matsushita Electric Ind Co Ltd 光ディスク装置
US6240053B1 (en) * 1998-05-07 2001-05-29 Ricoh Company, Ltd. Optical pickup device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040005036A (ko) * 2002-07-08 2004-01-16 삼성전기주식회사 두개의 ｌｄ를 사용하는 ｄｖｄ 플레이어용 광 픽업장치
KR100915490B1 (ko) * 2005-05-26 2009-09-03 미쓰비시덴키 가부시키가이샤 광 픽업 장치, 광 디스크 장치 및 레이저 출력기

Also Published As

Publication number Publication date
JP4167370B2 (ja) 2008-10-15
JP2001184703A (ja) 2001-07-06
US6452880B1 (en) 2002-09-17

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