DE602005013054D1 - Diffraktionselement und optische Lesekopfvorrichtung damit - Google Patents

Diffraktionselement und optische Lesekopfvorrichtung damit

Info

Publication number
DE602005013054D1
DE602005013054D1 DE602005013054T DE602005013054T DE602005013054D1 DE 602005013054 D1 DE602005013054 D1 DE 602005013054D1 DE 602005013054 T DE602005013054 T DE 602005013054T DE 602005013054 T DE602005013054 T DE 602005013054T DE 602005013054 D1 DE602005013054 D1 DE 602005013054D1
Authority
DE
Germany
Prior art keywords
head device
diffraction element
reading head
optical reading
diffraction
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
DE602005013054T
Other languages
English (en)
Inventor
Bong-Gi Kim
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of DE602005013054D1 publication Critical patent/DE602005013054D1/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
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • 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
DE602005013054T 2005-01-20 2005-12-22 Diffraktionselement und optische Lesekopfvorrichtung damit Active DE602005013054D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050005474A KR100754517B1 (ko) 2005-01-20 2005-01-20 회절소자 및 이를 포함하는 광픽업장치

Publications (1)

Publication Number Publication Date
DE602005013054D1 true DE602005013054D1 (de) 2009-04-16

Family

ID=36202455

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005013054T Active DE602005013054D1 (de) 2005-01-20 2005-12-22 Diffraktionselement und optische Lesekopfvorrichtung damit

Country Status (5)

Country Link
US (1) US7609607B2 (de)
EP (1) EP1684274B1 (de)
KR (1) KR100754517B1 (de)
CN (1) CN100395827C (de)
DE (1) DE602005013054D1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7245407B2 (en) * 2002-06-10 2007-07-17 Matsushita Electric Industrial Co., Ltd. Complex objective lens compatible with information media of different thicknesses
KR100765393B1 (ko) * 2005-07-11 2007-10-10 엘지전자 주식회사 부빔의 각도 조정이 필요없는 광 디스크 장치의 광 픽업
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
JP4824762B2 (ja) * 2006-10-04 2011-11-30 パイオニア株式会社 ピックアップ装置
JP2009223936A (ja) 2008-03-14 2009-10-01 Ricoh Co Ltd 光ピックアップおよびこれを用いる光情報処理装置
JP2009223937A (ja) * 2008-03-14 2009-10-01 Ricoh Co Ltd 光ピックアップおよびこれを用いる光情報処理装置
JP5178339B2 (ja) * 2008-06-20 2013-04-10 三洋電機株式会社 光ピックアップ装置
JP5142879B2 (ja) * 2008-08-06 2013-02-13 株式会社日立メディアエレクトロニクス 光ピックアップおよび光ディスク装置
JP5433533B2 (ja) * 2010-09-03 2014-03-05 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および光ディスク装置
CN102736152A (zh) * 2011-04-13 2012-10-17 中国科学院微电子研究所 一种偶次级透射光栅
US10514296B2 (en) * 2015-07-29 2019-12-24 Samsung Electronics Co., Ltd. Spectrometer including metasurface
US11268854B2 (en) 2015-07-29 2022-03-08 Samsung Electronics Co., Ltd. Spectrometer including metasurface
US11867556B2 (en) 2015-07-29 2024-01-09 Samsung Electronics Co., Ltd. Spectrometer including metasurface
CN108603839A (zh) * 2016-04-18 2018-09-28 惠普发展公司，有限责任合伙企业 散射辐射的多重光谱的同时检测

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0675300B2 (ja) 1988-04-11 1994-09-21 三菱電機株式会社 光学式ヘッド装置
US5066138A (en) * 1988-06-16 1991-11-19 Mitsubishi Denki Kabushiki Kaisha Optical head apparatus
JPH0227534A (ja) 1988-07-16 1990-01-30 Mitsubishi Electric Corp 光学式ヘッド装置
DE68923833T2 (de) * 1988-06-20 1996-06-13 Mitsubishi Electric Corp Optischer Kopf mit Kippkorrekturservomechanismus.
US4983017A (en) * 1988-08-02 1991-01-08 Sharp Kabushiki Kaisha Optical head device for reading information stored in a recording medium
JPH083910B2 (ja) 1989-01-13 1996-01-17 シャープ株式会社 光ピックアップ装置
US5835471A (en) * 1995-06-12 1998-11-10 Canon Kabushiki Kaisha Optical information recording and/or reproducing apparatus
JP3549301B2 (ja) * 1995-09-08 2004-08-04 三菱電機株式会社 光ヘッドのトラッキング誤差検出装置
JP3606961B2 (ja) 1995-09-25 2005-01-05 シャープ株式会社 光ピックアップ装置
JP3661694B2 (ja) * 1998-02-16 2005-06-15 株式会社日立製作所 光ヘッドおよび光ディスク装置
JP3371846B2 (ja) 1999-04-06 2003-01-27 日本電気株式会社 ホログラム素子
JP2001014717A (ja) * 1999-04-28 2001-01-19 Matsushita Electronics Industry Corp 光学装置
US7012875B2 (en) * 2000-09-06 2006-03-14 Hitachi, Ltd. Optical disk apparatus using focal shift signals to control spherical aberration
JP2003091856A (ja) * 2001-09-18 2003-03-28 Sony Corp 光学ピックアップ
JP3834810B2 (ja) * 2001-09-19 2006-10-18 日本電気株式会社 光ヘッド装置
WO2003075267A1 (fr) * 2002-03-06 2003-09-12 Matsushita Electric Industrial Co., Ltd. Mecanisme de tete optique et dispositif de lecture d'informations optiques utilisant un tel mecanisme, lecteur de disque optique, systeme de navigation automobile, enregistreur de disque optique et serveur de disque optique utilisant ce dispositif de lecture d'informations optiques
JP2004091856A (ja) 2002-08-30 2004-03-25 Sumitomo Metal Ind Ltd 酸洗鋼板の製造方法及び酸洗装置
JP3799318B2 (ja) * 2002-10-22 2006-07-19 株式会社日立製作所 光ピックアップおよびそれを用いた光学的情報記録装置または再生装置
JP2004327005A (ja) * 2003-04-11 2004-11-18 Sankyo Seiki Mfg Co Ltd 光ヘッド装置、回折素子、および回折素子の製造方法
JP2004334962A (ja) * 2003-05-06 2004-11-25 Sony Corp 光ヘッド及び光記録媒体記録再生装置
TWI325078B (en) * 2003-10-15 2010-05-21 Hon Hai Prec Ind Co Ltd Planar light device and liquid crystal display

Also Published As

Publication number Publication date
US7609607B2 (en) 2009-10-27
CN1808576A (zh) 2006-07-26
EP1684274A3 (de) 2006-09-20
CN100395827C (zh) 2008-06-18
EP1684274B1 (de) 2009-03-04
KR100754517B1 (ko) 2007-09-03
US20060158996A1 (en) 2006-07-20
EP1684274A2 (de) 2006-07-26
KR20060084689A (ko) 2006-07-25

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Legal Events

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8364 No opposition during term of opposition