WO2009044625A1 - 光学素子及び光ヘッド - Google Patents

光学素子及び光ヘッド Download PDF

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Publication number
WO2009044625A1
WO2009044625A1 PCT/JP2008/066643 JP2008066643W WO2009044625A1 WO 2009044625 A1 WO2009044625 A1 WO 2009044625A1 JP 2008066643 W JP2008066643 W JP 2008066643W WO 2009044625 A1 WO2009044625 A1 WO 2009044625A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical element
groove
guide body
light guide
linear light
Prior art date
Application number
PCT/JP2008/066643
Other languages
English (en)
French (fr)
Inventor
Naoki Nishida
Hiroshi Oshitani
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 JP2008558130A priority Critical patent/JP4341722B2/ja
Publication of WO2009044625A1 publication Critical patent/WO2009044625A1/ja

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
    • G11B5/127—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
    • G11B5/58—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
    • 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)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Head (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

　本発明は、線状導光体を精度良く容易に固定することが出来る薄い光学素子及びこの光学素子を用いた光ヘッドを提供する。このため、記録媒体の面の上で、前記面に沿って前記記録媒体と相対的に移動するスライダに搭載される光学素子において、光源から線状導光体が導いた光を透過する材料で形成され、前記線状導光体が配設される一方の端は開放され他方の端は閉じられ、搭載される前記スライダに対向する底面に開口している溝と、前記溝の前記他方の端から入射する前記線状導光体が導いた光を偏向する偏向面と、を備え、前記溝の他方の端は、斜面で構成され、前記斜面は、前記一方の端から前記他方の端の方向に進むに従って浅くなる前記溝の底を成している。
PCT/JP2008/066643 2007-10-05 2008-09-16 光学素子及び光ヘッド WO2009044625A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008558130A JP4341722B2 (ja) 2007-10-05 2008-09-16 光学素子

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-261865 2007-10-05
JP2007261865 2007-10-05

Publications (1)

Publication Number Publication Date
WO2009044625A1 true WO2009044625A1 (ja) 2009-04-09

Family

ID=40526053

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/066643 WO2009044625A1 (ja) 2007-10-05 2008-09-16 光学素子及び光ヘッド

Country Status (2)

Country Link
JP (2) JP4341722B2 (ja)
WO (1) WO2009044625A1 (ja)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000028536A1 (fr) * 1998-11-09 2000-05-18 Seiko Instruments Inc. Tete optique a champ proche et procede de production associe
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
JP2002319174A (ja) * 2001-04-19 2002-10-31 Fuji Xerox Co Ltd 光ヘッドおよびディスク装置
JP2007109269A (ja) * 2005-10-11 2007-04-26 Seiko Instruments Inc 近接場光利用ヘッド

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000028536A1 (fr) * 1998-11-09 2000-05-18 Seiko Instruments Inc. Tete optique a champ proche et procede de production associe
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
JP2002319174A (ja) * 2001-04-19 2002-10-31 Fuji Xerox Co Ltd 光ヘッドおよびディスク装置
JP2007109269A (ja) * 2005-10-11 2007-04-26 Seiko Instruments Inc 近接場光利用ヘッド

Also Published As

Publication number Publication date
JP2009104773A (ja) 2009-05-14
JP4337951B2 (ja) 2009-09-30
JPWO2009044625A1 (ja) 2011-02-03
JP4341722B2 (ja) 2009-10-07

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