DE602005007627D1 - Optischer kopf mit umschaltbarem durchmesser des strahlungsflecks auf dem strahlungsdetektor - Google Patents

Optischer kopf mit umschaltbarem durchmesser des strahlungsflecks auf dem strahlungsdetektor

Info

Publication number
DE602005007627D1
DE602005007627D1 DE602005007627T DE602005007627T DE602005007627D1 DE 602005007627 D1 DE602005007627 D1 DE 602005007627D1 DE 602005007627 T DE602005007627 T DE 602005007627T DE 602005007627 T DE602005007627 T DE 602005007627T DE 602005007627 D1 DE602005007627 D1 DE 602005007627D1
Authority
DE
Germany
Prior art keywords
diameter
radiation
scanning
dvd
shiftable
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.)
Active
Application number
DE602005007627T
Other languages
English (en)
Inventor
Andrei Mijiritskii
Sjoerd Stallinga
Bernardus H W Hendriks
Stein Kuiper
Albert H Immink
Teunis W Tukker
Coen T Liedenbaum
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE602005007627D1 publication Critical patent/DE602005007627D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
    • G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length
    • 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
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive elements
    • 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
    • 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
DE602005007627T 2004-11-16 2005-11-11 Optischer kopf mit umschaltbarem durchmesser des strahlungsflecks auf dem strahlungsdetektor Active DE602005007627D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04105799 2004-11-16
PCT/IB2005/053718 WO2006054215A1 (en) 2004-11-16 2005-11-11 Optical head with switchable diameter of the radiation spot on the radiation detector

Publications (1)

Publication Number Publication Date
DE602005007627D1 true DE602005007627D1 (de) 2008-07-31

Family

ID=35709244

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005007627T Active DE602005007627D1 (de) 2004-11-16 2005-11-11 Optischer kopf mit umschaltbarem durchmesser des strahlungsflecks auf dem strahlungsdetektor

Country Status (9)

Country Link
US (1) US7706234B2 (de)
EP (1) EP1815468B1 (de)
JP (1) JP2008521151A (de)
KR (1) KR20070086103A (de)
CN (1) CN101061539B (de)
AT (1) ATE398827T1 (de)
DE (1) DE602005007627D1 (de)
TW (1) TW200634795A (de)
WO (1) WO2006054215A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7436587B2 (en) 2006-03-23 2008-10-14 Mitutoyo Corporation Variable focal length constant magnification lens assembly
JP2009176391A (ja) * 2008-01-28 2009-08-06 Sony Corp 光ピックアップ及び光ディスク装置
JP5225005B2 (ja) * 2008-02-08 2013-07-03 三菱電機株式会社 光ピックアップ装置及び光ディスク装置
KR101289071B1 (ko) * 2011-05-06 2013-07-22 도시바삼성스토리지테크놀러지코리아 주식회사 광픽업 및 이를 적용한 광정보저장매체 시스템

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3160163B2 (ja) 1994-10-24 2001-04-23 シャープ株式会社 光ピックアップの光スポット径調整方法および光ピックアップの受光素子並びに光ピックアップ
JPH09167364A (ja) 1995-12-14 1997-06-24 Sharp Corp 光ピックアップ装置
US5841735A (en) * 1996-07-09 1998-11-24 The United States Of America As Represented By The Secretary Of The Navy Method and system for processing acoustic signals
JPH1092000A (ja) * 1996-09-13 1998-04-10 Nec Corp 光ヘッド装置
JPH10177738A (ja) 1996-12-17 1998-06-30 Sankyo Seiki Mfg Co Ltd 光ピックアップ装置
US6208609B1 (en) * 1998-11-12 2001-03-27 New Dimension Research & Instrument, Inc. Optical system with interactive data capability
KR100369467B1 (ko) 1998-11-17 2003-04-03 삼성전자 주식회사 광픽업장치
JP2000221388A (ja) * 1999-01-29 2000-08-11 Fuji Photo Optical Co Ltd 光束径可変型対物レンズおよびこれを用いた光学装置
KR100575633B1 (ko) 1999-12-31 2006-05-03 엘지전자 주식회사 이종 광디스크 겸용 광픽업 조정방법과 그에 적합한광픽업 장치
KR100438701B1 (ko) * 2001-09-17 2004-07-05 삼성전자주식회사 호환형 광픽업 및 그 광축을 맞추기 위한 조정방법
US7170681B2 (en) 2002-01-17 2007-01-30 Koninklijke Philips Electronics N.V. Optical scanning device
US20030147331A1 (en) * 2002-02-07 2003-08-07 G-Bond Optoelectronics, Inc. Optical pickup diffracting one of two laser beams to a single detector
EP1478951B1 (de) 2002-02-14 2006-11-29 Koninklijke Philips Electronics N.V. Linse mit variablem fokus
KR20030095437A (ko) * 2002-06-10 2003-12-24 삼성전자주식회사 반복 기록 특성을 향상시킬 수 있는 기록 장치 및 방법
KR100480615B1 (ko) * 2002-09-06 2005-03-31 삼성전자주식회사 2파장 광원 모듈을 채용한 광픽업
WO2004027769A1 (en) * 2002-09-19 2004-04-01 Koninklijke Philips Electronics N.V. Optical scanning device
JP4564848B2 (ja) 2002-10-25 2010-10-20 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 ズームレンズ
JP2006509312A (ja) 2002-12-04 2006-03-16 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 対物レンズ及びこのような対物レンズを使用する走査デバイス
JP2004206743A (ja) * 2002-12-24 2004-07-22 Ricoh Co Ltd 光ピックアップ装置及び光ディスク装置

Also Published As

Publication number Publication date
CN101061539B (zh) 2010-09-29
EP1815468B1 (de) 2008-06-18
TW200634795A (en) 2006-10-01
KR20070086103A (ko) 2007-08-27
ATE398827T1 (de) 2008-07-15
CN101061539A (zh) 2007-10-24
US7706234B2 (en) 2010-04-27
EP1815468A1 (de) 2007-08-08
US20080205241A1 (en) 2008-08-28
JP2008521151A (ja) 2008-06-19
WO2006054215A1 (en) 2006-05-26

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