WO2009037972A1 - Tête optique, tête d'enregistrement magnétique à assistance optique et dispositif d'enregistrement optique - Google Patents

Tête optique, tête d'enregistrement magnétique à assistance optique et dispositif d'enregistrement optique Download PDF

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Publication number
WO2009037972A1
WO2009037972A1 PCT/JP2008/065858 JP2008065858W WO2009037972A1 WO 2009037972 A1 WO2009037972 A1 WO 2009037972A1 JP 2008065858 W JP2008065858 W JP 2008065858W WO 2009037972 A1 WO2009037972 A1 WO 2009037972A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
light
end surface
head
recording medium
Prior art date
Application number
PCT/JP2008/065858
Other languages
English (en)
Japanese (ja)
Inventor
Manami Kuiseko
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 JP2008557545A priority Critical patent/JP4297199B2/ja
Publication of WO2009037972A1 publication Critical patent/WO2009037972A1/fr

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
    • G11B5/48—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
    • G11B5/4833—Structure of the arm assembly, e.g. load beams, flexures, parts of the arm adapted for controlling vertical force on the 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
    • G11B7/12—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
    • G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532—Heads
    • 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
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • 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)
  • 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

L'invention porte sur une tête optique à efficacité lumineuse élevée et à hauteur faible. La tête optique renferme un coulisseau qui se déplace par rapport à un support d'enregistrement sur la surface du support d'enregistrement et le long de celle-ci, et un guide de lumière linéaire qui guide la lumière provenant d'une source de lumière vers le support d'enregistrement. La tête optique renferme une lentille à gradient radial d'indice dans laquelle la lumière guidée par le guide de lumière linéaire forme un point de lumière en tombant sur une surface d'extrémité et en étant émise à partir de l'autre surface d'extrémité présentant une puissance de réfraction positive et focalisée sur une position écartée de l'autre surface d'extrémité, des moyens de déviation pour dévier la lumière émise à partir de l'autre surface d'extrémité vers une position située entre l'autre surface d'extrémité de la lentille à gradient radial d'indice et la position au niveau de laquelle le point de lumière est formé, et un guide d'onde optique qui est fourni pour pénétrer dans le coulisseau dans une direction croisant la direction du mouvement relatif, et dans lequel la lumière déviée par les moyens de déviation pénètre.
PCT/JP2008/065858 2007-09-19 2008-09-03 Tête optique, tête d'enregistrement magnétique à assistance optique et dispositif d'enregistrement optique WO2009037972A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008557545A JP4297199B2 (ja) 2007-09-19 2008-09-03 光ヘッド、光アシスト式磁気記録ヘッド及び光記録装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-242131 2007-09-19
JP2007242131 2007-09-19

Publications (1)

Publication Number Publication Date
WO2009037972A1 true WO2009037972A1 (fr) 2009-03-26

Family

ID=40467791

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/065858 WO2009037972A1 (fr) 2007-09-19 2008-09-03 Tête optique, tête d'enregistrement magnétique à assistance optique et dispositif d'enregistrement optique

Country Status (2)

Country Link
JP (1) JP4297199B2 (fr)
WO (1) WO2009037972A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009099212A (ja) * 2007-10-17 2009-05-07 Seiko Instruments Inc 記録ヘッド及び情報記録再生装置
WO2012164641A1 (fr) * 2011-05-27 2012-12-06 株式会社日立製作所 Dispositif d'inspection de défauts optiques à champ proche

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002373450A (ja) * 2001-06-15 2002-12-26 Fuji Xerox Co Ltd 光ヘッドおよびディスク装置
JP2003006803A (ja) * 2001-06-22 2003-01-10 Fuji Xerox Co Ltd 光磁気ヘッドおよび光磁気ディスク装置
JP2003195012A (ja) * 2001-09-27 2003-07-09 Matsushita Electric Ind Co Ltd 非球面ロッドレンズ及び非球面ロッドレンズの製造方法
JP2006294076A (ja) * 2005-04-05 2006-10-26 Hitachi Ltd 磁気光融合記録装置用ヘッド及びその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002373450A (ja) * 2001-06-15 2002-12-26 Fuji Xerox Co Ltd 光ヘッドおよびディスク装置
JP2003006803A (ja) * 2001-06-22 2003-01-10 Fuji Xerox Co Ltd 光磁気ヘッドおよび光磁気ディスク装置
JP2003195012A (ja) * 2001-09-27 2003-07-09 Matsushita Electric Ind Co Ltd 非球面ロッドレンズ及び非球面ロッドレンズの製造方法
JP2006294076A (ja) * 2005-04-05 2006-10-26 Hitachi Ltd 磁気光融合記録装置用ヘッド及びその製造方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009099212A (ja) * 2007-10-17 2009-05-07 Seiko Instruments Inc 記録ヘッド及び情報記録再生装置
WO2012164641A1 (fr) * 2011-05-27 2012-12-06 株式会社日立製作所 Dispositif d'inspection de défauts optiques à champ proche
JPWO2012164641A1 (ja) * 2011-05-27 2014-07-31 株式会社日立製作所 近接場光欠陥検査装置

Also Published As

Publication number Publication date
JPWO2009037972A1 (ja) 2011-01-06
JP4297199B2 (ja) 2009-07-15

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