DE60016529D1 - Optisches Abtastgerät mit reduziertem Astigmatismus - Google Patents

Optisches Abtastgerät mit reduziertem Astigmatismus

Info

Publication number
DE60016529D1
DE60016529D1 DE2000616529 DE60016529T DE60016529D1 DE 60016529 D1 DE60016529 D1 DE 60016529D1 DE 2000616529 DE2000616529 DE 2000616529 DE 60016529 T DE60016529 T DE 60016529T DE 60016529 D1 DE60016529 D1 DE 60016529D1
Authority
DE
Germany
Prior art keywords
optical scanner
reduced astigmatism
astigmatism
reduced
scanner
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
Application number
DE2000616529
Other languages
English (en)
Other versions
DE60016529T2 (de
Inventor
Hyoung Jae Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Application granted granted Critical
Publication of DE60016529D1 publication Critical patent/DE60016529D1/de
Publication of DE60016529T2 publication Critical patent/DE60016529T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/08—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
    • G11B7/1392—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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Lenses (AREA)
DE60016529T 1999-09-03 2000-04-25 Optisches Abtastgerät mit reduziertem Astigmatismus Expired - Fee Related DE60016529T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR9937245 1999-09-03
KR1019990037245A KR100348883B1 (ko) 1999-09-03 1999-09-03 비점수차 방지 광픽업 장치

Publications (2)

Publication Number Publication Date
DE60016529D1 true DE60016529D1 (de) 2005-01-13
DE60016529T2 DE60016529T2 (de) 2005-12-15

Family

ID=19609912

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60016529T Expired - Fee Related DE60016529T2 (de) 1999-09-03 2000-04-25 Optisches Abtastgerät mit reduziertem Astigmatismus

Country Status (6)

Country Link
US (1) US6611383B1 (de)
EP (1) EP1083554B1 (de)
JP (1) JP2001110081A (de)
KR (1) KR100348883B1 (de)
CN (1) CN1156831C (de)
DE (1) DE60016529T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100604794B1 (ko) * 1999-10-21 2006-07-28 삼성전자주식회사 광픽업장치
KR20020002851A (ko) * 2000-06-30 2002-01-10 이형도 광학 픽업 장치
KR20030078215A (ko) * 2002-03-28 2003-10-08 삼성전자주식회사 광픽업
KR100480635B1 (ko) * 2002-04-30 2005-03-31 삼성전자주식회사 광픽업 및 쐐기형 빔스프리터
JP2004005944A (ja) * 2002-04-30 2004-01-08 Samsung Electronics Co Ltd 光ピックアップ及びくさび型ビームスプリッタ
KR100468739B1 (ko) * 2002-06-20 2005-01-29 삼성전자주식회사 모니터 광검출기를 구비하는 광픽업
KR100493041B1 (ko) 2003-01-04 2005-06-07 삼성전자주식회사 호환형 광픽업장치
US20040156302A1 (en) * 2003-01-07 2004-08-12 Matsushita Electric Industrial Co., Ltd. Optical head
KR100498478B1 (ko) * 2003-01-16 2005-07-01 삼성전자주식회사 호환형 광픽업장치
JP4058638B2 (ja) * 2004-02-10 2008-03-12 船井電機株式会社 光ピックアップ装置
CN1332386C (zh) * 2004-08-31 2007-08-15 精碟科技股份有限公司 光学读取头
US7352512B2 (en) * 2005-07-11 2008-04-01 The Boeing Company Compact self-compensating beam splitter apparatus and method of using
US7477392B2 (en) 2005-07-27 2009-01-13 Key Technology, Inc Electromagnetic energy measurement apparatus and method
EP1938320A2 (de) * 2005-09-19 2008-07-02 Arima Devices Corporation Optischer lesekopf mit irrtumskorrektur
WO2008044476A1 (fr) * 2006-10-05 2008-04-17 Panasonic Corporation Tête optique, unité de disque optique, ordinateur, lecteur de disque optique et enregistreur de disque optique
WO2008074057A1 (en) * 2006-12-19 2008-06-26 Ellex Medical Pty Ltd Beam blocking and combining optic
US20090091912A1 (en) * 2007-10-09 2009-04-09 Hsin-Chin Lee Light-guiding key structure with lateral light-guiding function
US10072971B2 (en) * 2010-04-16 2018-09-11 Metal Improvement Company, Llc Flexible beam delivery system for high power laser systems
FR2998977B1 (fr) * 2012-12-05 2015-02-06 Thales Sa Composant de separation spectrale sans image parasite apparente
KR20230050640A (ko) 2021-10-08 2023-04-17 한국 천문 연구원 광학 장치 및 광학 장치를 최적화 하는 방법

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6292144A (ja) 1985-10-17 1987-04-27 Matsushita Electric Ind Co Ltd 複数光スポツトを持つ光学的記録再生装置
JPH083906B2 (ja) * 1986-08-21 1996-01-17 松下電器産業株式会社 光ヘツド装置
JPH0461036A (ja) * 1990-06-29 1992-02-27 Kyocera Corp 光スポット制御方法および制御装置
JP3136758B2 (ja) * 1991-05-10 2001-02-19 株式会社日立製作所 光情報記録再生装置
CA2079620A1 (en) * 1991-10-25 1993-04-26 Roeland M. T. Hekker Holographic elements for an optical recording system
JPH0628687A (ja) * 1992-02-28 1994-02-04 Canon Inc 情報記録再生装置
JP3297505B2 (ja) * 1992-08-07 2002-07-02 松下電器産業株式会社 光ヘッド装置及び光情報装置
US6275461B1 (en) * 1996-08-29 2001-08-14 Samsung Electronic Co., Ltd. Optical pickup using an optical phase plate
JP3638194B2 (ja) * 1997-03-19 2005-04-13 パイオニア株式会社 光ピックアップ装置
JP3522486B2 (ja) * 1997-03-19 2004-04-26 パイオニア株式会社 光ピックアップ装置
JP3662382B2 (ja) * 1997-03-21 2005-06-22 パイオニア株式会社 光ピックアップ装置
US6304540B1 (en) * 1998-03-30 2001-10-16 Samsung Electronics Co., Ltd. Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens
JP3304053B2 (ja) 1997-05-30 2002-07-22 松下電器産業株式会社 光ヘッドおよび光ディスク装置
US6327238B1 (en) * 1997-08-29 2001-12-04 Matsushita Electric Industrial Co., Ltd. Optical disk device
TW442786B (en) * 1999-08-25 2001-06-23 Ind Tech Res Inst Single objective lens optical pick-up head

Also Published As

Publication number Publication date
JP2001110081A (ja) 2001-04-20
US6611383B1 (en) 2003-08-26
KR100348883B1 (ko) 2002-08-17
KR19990083967A (ko) 1999-12-06
CN1287354A (zh) 2001-03-14
DE60016529T2 (de) 2005-12-15
EP1083554B1 (de) 2004-12-08
EP1083554A3 (de) 2002-03-06
EP1083554A2 (de) 2001-03-14
CN1156831C (zh) 2004-07-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee