TW200614204A - Disk-shaped recording medium, disk device, and method for manufacturing optical disks - Google Patents

Disk-shaped recording medium, disk device, and method for manufacturing optical disks

Info

Publication number
TW200614204A
TW200614204A TW094120459A TW94120459A TW200614204A TW 200614204 A TW200614204 A TW 200614204A TW 094120459 A TW094120459 A TW 094120459A TW 94120459 A TW94120459 A TW 94120459A TW 200614204 A TW200614204 A TW 200614204A
Authority
TW
Taiwan
Prior art keywords
disk
information signals
recording medium
optical disks
shaped recording
Prior art date
Application number
TW094120459A
Other languages
Chinese (zh)
Other versions
TWI291692B (en
Inventor
Ariyoshi Nakaoki
Masanobu Yamamoto
Kimihiro Saito
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of TW200614204A publication Critical patent/TW200614204A/en
Application granted granted Critical
Publication of TWI291692B publication Critical patent/TWI291692B/en

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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24079—Width or depth
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/006—Overwriting
    • 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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24056—Light transmission layers lying on the light entrance side and being thinner than the substrate, e.g. specially adapted for Blu-ray® discs
    • G11B7/24059—Light transmission layers lying on the light entrance side and being thinner than the substrate, e.g. specially adapted for Blu-ray® discs specially adapted for near-field recording or reproduction
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Head (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

An optical disk capable of rewriting information signals. Tracking control guide grooves (81a) are formed individually in tracks in the rewritable areas which can rewrite the information signals, and a recording layer (83) for writing the information signals is laminated on a substrate having the guide grooves (81a) formed therein. The recording layer (83) is enabled in at least the information signal rewritable areas to rewrite the information signals by a proximity field light of multiple beams, and has recesses (85a) formed in its outermost surface at positions corresponding to those of the guide grooves (81a).
TW94120459A 2004-06-28 2005-06-20 Disk-shaped recording medium, disk device, and method for manufacturing optical disks TWI291692B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004190250A JP2006012336A (en) 2004-06-28 2004-06-28 Disk-like recording medium and disk device

Publications (2)

Publication Number Publication Date
TW200614204A true TW200614204A (en) 2006-05-01
TWI291692B TWI291692B (en) 2007-12-21

Family

ID=35779390

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94120459A TWI291692B (en) 2004-06-28 2005-06-20 Disk-shaped recording medium, disk device, and method for manufacturing optical disks

Country Status (4)

Country Link
JP (1) JP2006012336A (en)
CN (1) CN1977317A (en)
TW (1) TWI291692B (en)
WO (1) WO2006001187A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011076686A (en) * 2009-10-01 2011-04-14 Sony Corp Recording device, recording method, optical recording medium

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01138626A (en) * 1987-11-26 1989-05-31 Victor Co Of Japan Ltd Optical recording and reproducing system for information signal
JP2808579B2 (en) * 1990-11-09 1998-10-08 日本電気ホームエレクトロニクス株式会社 Tracking control method for optical disk
JPH04339320A (en) * 1990-12-19 1992-11-26 General Electric Co <Ge> Optical disc tracking thereof and reader therefor
JP3005648B2 (en) * 1991-04-25 2000-01-31 日本電気ホームエレクトロニクス株式会社 Optical disk recording method and optical disk device
JPH08321084A (en) * 1995-05-24 1996-12-03 Sanyo Electric Co Ltd Tracking method on recording medium
JP3971832B2 (en) * 1997-12-16 2007-09-05 日立マクセル株式会社 Optical disk and optical disk device
JP2001176128A (en) * 1999-12-14 2001-06-29 Ricoh Co Ltd Optical recording and reproducing medium, method for manufacturing the same and optical recording and reproducing method for the same
JP2001250275A (en) * 2000-03-01 2001-09-14 Tosoh Corp Surface reproducing type optical recording medium
JP2001256687A (en) * 2000-03-08 2001-09-21 Tosoh Corp Optical recording medium
JP2002074703A (en) * 2000-09-01 2002-03-15 Sony Corp Method and device for detecting tracking error signal, optical pickup, tracking controller and optical recording /reproducing device
JP2002319153A (en) * 2001-04-19 2002-10-31 Sony Corp Signal reproducing device and signal detecting method
JP4081297B2 (en) * 2002-05-07 2008-04-23 株式会社リコー Surface type phase change recording medium and optical recording system using the same

Also Published As

Publication number Publication date
CN1977317A (en) 2007-06-06
WO2006001187A1 (en) 2006-01-05
TWI291692B (en) 2007-12-21
JP2006012336A (en) 2006-01-12

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees