JP4297199B2 - 光ヘッド、光アシスト式磁気記録ヘッド及び光記録装置 - Google Patents

光ヘッド、光アシスト式磁気記録ヘッド及び光記録装置 Download PDF

Info

Publication number
JP4297199B2
JP4297199B2 JP2008557545A JP2008557545A JP4297199B2 JP 4297199 B2 JP4297199 B2 JP 4297199B2 JP 2008557545 A JP2008557545 A JP 2008557545A JP 2008557545 A JP2008557545 A JP 2008557545A JP 4297199 B2 JP4297199 B2 JP 4297199B2
Authority
JP
Japan
Prior art keywords
light
optical
refractive index
radial type
recording medium
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
JP2008557545A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2009037972A1 (ja
Inventor
真奈美 杭迫
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
Application granted granted Critical
Publication of JP4297199B2 publication Critical patent/JP4297199B2/ja
Publication of JPWO2009037972A1 publication Critical patent/JPWO2009037972A1/ja
Expired - Fee Related 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
    • 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)
  • Magnetic Heads (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Optical Head (AREA)
JP2008557545A 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 Expired - Fee Related JP4297199B2 (ja)

Applications Claiming Priority (3)

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

Publications (2)

Publication Number Publication Date
JP4297199B2 true JP4297199B2 (ja) 2009-07-15
JPWO2009037972A1 JPWO2009037972A1 (ja) 2011-01-06

Family

ID=40467791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008557545A Expired - Fee Related 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

Country Status (2)

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

Families Citing this family (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
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

Family Cites Families (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
JP4095623B2 (ja) * 2005-04-05 2008-06-04 株式会社日立製作所 磁気光融合記録装置用ヘッド及びその製造方法

Also Published As

Publication number Publication date
WO2009037972A1 (fr) 2009-03-26
JPWO2009037972A1 (ja) 2011-01-06

Similar Documents

Publication Publication Date Title
JP4093285B2 (ja) 光学素子及び光ヘッド
JPWO2008001594A1 (ja) 光ヘッド、光磁気ヘッド及び光記録装置
WO2007105393A1 (fr) Tête d'enregistrement et dispositif d'enregistrement
US20100208557A1 (en) Optical Head and Optical Recording Device
WO2007105392A1 (fr) Tête d'enregistrement et dispositif d'enregistrement
JPWO2010050299A1 (ja) 近接場光発生装置、光記録ヘッド及び光記録装置
WO2010010806A1 (fr) Tête d'enregistrement optique et dispositif d'enregistrement optique
JP4297199B2 (ja) 光ヘッド、光アシスト式磁気記録ヘッド及び光記録装置
JP4305575B2 (ja) 光学素子の製造方法
WO2010007897A1 (fr) Élément optique de déviation, tête d'enregistrement optique et dispositif d'enregistrement optique
JP4093286B2 (ja) 光学素子、光学素子の製造方法及び光ヘッド
JP2009015957A (ja) 光学素子及び光ヘッド
US8134893B2 (en) Optical recording head and optical recording apparatus
JPWO2008142917A1 (ja) 光記録ヘッド、光アシスト式磁気記録ヘッド及び光記録装置
WO2010104030A1 (fr) Tête et appareil d'enregistrement optique
JP4479860B2 (ja) 光記録ヘッド及び光記録装置
JP2009176354A (ja) 光学素子、スライダ及び光ヘッド
JP2009110562A (ja) 光学素子及び光ヘッド
WO2007116723A1 (fr) Tete d'enregistrement optique et appareil d'enregistrement optique
JP4788661B2 (ja) 光ヘッドの製造方法
WO2010100994A1 (fr) Élément optique et tête d'enregistrement optique
JP4337951B2 (ja) 光ヘッド
JP5050938B2 (ja) 光学素子、光ヘッド及び光記録装置
JP2010123200A (ja) 光学装置、光記録ヘッド及び光記録装置
JP2010140581A (ja) 光学装置、光記録ヘッド及び光記録装置

Legal Events

Date Code Title Description
TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20090324

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090406

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120424

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees