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WO2009057429A1 - 光学ヘッド及び光学記録装置 - Google Patents

光学ヘッド及び光学記録装置 Download PDF

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Publication number
WO2009057429A1
WO2009057429A1 PCT/JP2008/068337 JP2008068337W WO2009057429A1 WO 2009057429 A1 WO2009057429 A1 WO 2009057429A1 JP 2008068337 W JP2008068337 W JP 2008068337W WO 2009057429 A1 WO2009057429 A1 WO 2009057429A1
Authority
WO
WIPO (PCT)
Prior art keywords
luminous flux
optical
coupling section
optical system
waveguide
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
PCT/JP2008/068337
Other languages
English (en)
French (fr)
Inventor
Manami Kuiseko
Naoki Nishida
Kenji Konno
Koujirou Sekine
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.)
Konica Minolta Opto Inc
Original Assignee
Konica Minolta Opto 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 Konica Minolta Opto Inc filed Critical Konica Minolta Opto Inc
Priority to JP2009538990A priority Critical patent/JPWO2009057429A1/ja
Priority to US12/738,962 priority patent/US20100208557A1/en
Publication of WO2009057429A1 publication Critical patent/WO2009057429A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
    • G11B5/314—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G11B5/4866—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives the arm comprising an optical waveguide, e.g. for thermally-assisted recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • G11B5/6088—Optical waveguide in or on flying head
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08576—Swinging-arm positioners
    • 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
    • G11B7/1359—Single prisms
    • 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
    • G11B7/1384—Fibre optics
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Head (AREA)
  • Magnetic Heads (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

　光学ヘッドは、記録媒体上で浮上しながら相対的に移動するスライダーと、そのスライダーの端部側面に設けられ、記録媒体上に光スポットを形成するための集光機能を有する光導波路と、前記光導波路に光束を導く導光光学系と、を備える。前記導光光学系からの光束を導入する光束結合部分を、前記光導波路の導波方向に対して平行な面に有し、前記光束結合部分に向けて光束を偏向させる反射面を前記導光光学系に有する。前記光束結合部分は、前記導光光学系から斜めに入射した光束の斜め入射による収差を補正する機能を有する。前記反射面と前記光束結合部分との間には、屈折率が１より大きい媒質部材を有する。
PCT/JP2008/068337 2007-10-29 2008-10-09 光学ヘッド及び光学記録装置 Ceased WO2009057429A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009538990A JPWO2009057429A1 (ja) 2007-10-29 2008-10-09 光学ヘッド及び光学記録装置
US12/738,962 US20100208557A1 (en) 2007-10-29 2008-10-09 Optical Head and Optical Recording Device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-279754 2007-10-29
JP2007279754 2007-10-29

Publications (1)

Publication Number Publication Date
WO2009057429A1 true WO2009057429A1 (ja) 2009-05-07

Family

ID=40590824

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/068337 Ceased WO2009057429A1 (ja) 2007-10-29 2008-10-09 光学ヘッド及び光学記録装置

Country Status (3)

Country Link
US (1) US20100208557A1 (ja)
JP (1) JPWO2009057429A1 (ja)
WO (1) WO2009057429A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010140404A1 (ja) * 2009-06-05 2010-12-09 コニカミノルタオプト株式会社 面発光半導体レーザ、光記録ヘッド及び光記録装置
JP2011008908A (ja) * 2009-06-25 2011-01-13 Seagate Technology Llc 熱アシスト磁気記録装置、および統合された熱アシスト磁気記録装置を作成するための方法
JP2011065724A (ja) * 2009-09-18 2011-03-31 Konica Minolta Opto Inc 情報記録装置
JP2012163959A (ja) * 2011-02-03 2012-08-30 Seagate Technology Llc 熱アシスト磁気記録のための装置および方法
WO2012128198A1 (ja) * 2011-03-22 2012-09-27 コニカミノルタアドバンストレイヤー株式会社 光アシスト磁気ヘッド及び光アシスト磁気記録装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8134893B2 (en) * 2006-04-25 2012-03-13 Konica Minolta Opto, Inc. Optical recording head and optical recording apparatus
JPWO2012014594A1 (ja) * 2010-07-30 2013-09-12 コニカミノルタ株式会社 製造方法、光アシスト磁気記録ヘッド、及び磁気記録装置
US8944662B2 (en) 2012-08-13 2015-02-03 3M Innovative Properties Company Diffractive luminaires
US10459145B2 (en) * 2015-03-16 2019-10-29 Digilens Inc. Waveguide device incorporating a light pipe
US9875761B1 (en) * 2017-05-22 2018-01-23 Seagate Technology Llc Gradient-index lens with tilted sidewall

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001256601A (ja) * 2000-03-09 2001-09-21 Sharp Corp 複合磁気ヘッド装置、それを用いた情報記録再生装置および記録媒体
JP2002298302A (ja) * 2001-03-29 2002-10-11 Toshiba Corp 光アシスト磁気記録ヘッド及び光アシスト磁気記録装置
JP2003534622A (ja) * 2000-05-24 2003-11-18 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 温度支援型データ記録方法及び記録装置
JP2007265524A (ja) * 2006-03-28 2007-10-11 Fujitsu Ltd 磁気ディスク装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004003891A1 (en) * 2002-06-28 2004-01-08 Seagate Technology Llc Heat assisted magnetic recording head with a planar waveguide
US7688689B2 (en) * 2004-02-26 2010-03-30 Seagate Technology Llc Head with optical bench for use in data storage devices
US8339905B2 (en) * 2005-04-13 2012-12-25 Seagate Technology Llc Alignment features for heat assisted magnetic recording transducers
WO2009139258A1 (ja) * 2008-05-14 2009-11-19 コニカミノルタオプト株式会社 光学素子、アーム機構、および情報記録装置
US8228779B2 (en) * 2008-09-22 2012-07-24 Seagate Technology Llc System to deliver light to a slider for heat-assisted recording
US7898909B2 (en) * 2009-02-12 2011-03-01 Tdk Corporation Thermal-assisted magnetic recording head having substrate and light reflection section
US8254212B2 (en) * 2009-06-25 2012-08-28 Seagate Technology Llc Integrated heat assisted magnetic recording device
US8559127B2 (en) * 2010-12-22 2013-10-15 Seagate Technology Llc Integrated heat assisted magnetic recording head with extended cavity vertical cavity surface emitting laser diode

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001256601A (ja) * 2000-03-09 2001-09-21 Sharp Corp 複合磁気ヘッド装置、それを用いた情報記録再生装置および記録媒体
JP2003534622A (ja) * 2000-05-24 2003-11-18 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 温度支援型データ記録方法及び記録装置
JP2002298302A (ja) * 2001-03-29 2002-10-11 Toshiba Corp 光アシスト磁気記録ヘッド及び光アシスト磁気記録装置
JP2007265524A (ja) * 2006-03-28 2007-10-11 Fujitsu Ltd 磁気ディスク装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010140404A1 (ja) * 2009-06-05 2010-12-09 コニカミノルタオプト株式会社 面発光半導体レーザ、光記録ヘッド及び光記録装置
JP2011008908A (ja) * 2009-06-25 2011-01-13 Seagate Technology Llc 熱アシスト磁気記録装置、および統合された熱アシスト磁気記録装置を作成するための方法
JP2011065724A (ja) * 2009-09-18 2011-03-31 Konica Minolta Opto Inc 情報記録装置
JP2012163959A (ja) * 2011-02-03 2012-08-30 Seagate Technology Llc 熱アシスト磁気記録のための装置および方法
WO2012128198A1 (ja) * 2011-03-22 2012-09-27 コニカミノルタアドバンストレイヤー株式会社 光アシスト磁気ヘッド及び光アシスト磁気記録装置

Also Published As

Publication number Publication date
US20100208557A1 (en) 2010-08-19
JPWO2009057429A1 (ja) 2011-03-10

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