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WO2005031723A3 - High contrast optical information carrier - Google Patents

High contrast optical information carrier Download PDF

Info

Publication number
WO2005031723A3
WO2005031723A3 PCT/IB2004/051803 IB2004051803W WO2005031723A3 WO 2005031723 A3 WO2005031723 A3 WO 2005031723A3 IB 2004051803 W IB2004051803 W IB 2004051803W WO 2005031723 A3 WO2005031723 A3 WO 2005031723A3
Authority
WO
WIPO (PCT)
Prior art keywords
information carrier
optical information
high contrast
cavities
information
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/IB2004/051803
Other languages
French (fr)
Other versions
WO2005031723A2 (en
Inventor
Milan Saalmink
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to EP04770041A priority Critical patent/EP1671322A2/en
Priority to MXPA06003527A priority patent/MXPA06003527A/en
Priority to JP2006530907A priority patent/JP2007507818A/en
Priority to US10/573,742 priority patent/US20070110945A1/en
Priority to CA002540685A priority patent/CA2540685A1/en
Publication of WO2005031723A2 publication Critical patent/WO2005031723A2/en
Publication of WO2005031723A3 publication Critical patent/WO2005031723A3/en
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
    • 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
    • G11B7/24085—Pits
    • 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
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/013—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track for discrete information, i.e. where each information unit is stored in a distinct discrete location, e.g. digital information formats within a data block or sector
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention relates to an optical information carrier for carrying information to be read out by means of an optical beam (9). It is an object of the invention to provide information carriers with higher contrast. This object is achieved by an information carrier comprising at least one information layer with cavities (4) having a width of 50µm or less and with lands (5) between said cavities (4), wherein said cavities (4) have a smaller width (A) than depth (B), and optically active material (7) deposited on said lands (5) adapted to show an optical signal, when being stimulated by said optical beam (9).
PCT/IB2004/051803 2003-09-30 2004-09-21 High contrast optical information carrier Ceased WO2005031723A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP04770041A EP1671322A2 (en) 2003-09-30 2004-09-21 High contrast optical information carrier
MXPA06003527A MXPA06003527A (en) 2003-09-30 2004-09-21 High contrast optical information carrier.
JP2006530907A JP2007507818A (en) 2003-09-30 2004-09-21 High contrast optical information carrier
US10/573,742 US20070110945A1 (en) 2004-09-21 2004-09-21 High contrast optical information carrier
CA002540685A CA2540685A1 (en) 2003-09-30 2004-09-21 High contrast optical information carrier

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03103609.8 2003-09-30
EP03103609 2003-09-30

Publications (2)

Publication Number Publication Date
WO2005031723A2 WO2005031723A2 (en) 2005-04-07
WO2005031723A3 true WO2005031723A3 (en) 2005-05-26

Family

ID=34384671

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/051803 Ceased WO2005031723A2 (en) 2003-09-30 2004-09-21 High contrast optical information carrier

Country Status (8)

Country Link
EP (1) EP1671322A2 (en)
JP (1) JP2007507818A (en)
KR (1) KR20060089222A (en)
CN (1) CN1886788A (en)
CA (1) CA2540685A1 (en)
MX (1) MXPA06003527A (en)
TW (1) TW200518085A (en)
WO (1) WO2005031723A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5370970A (en) * 1991-06-06 1994-12-06 Pioneer Electronic Corporation Write-once-read-many optical disk
WO1999024527A1 (en) * 1997-11-07 1999-05-20 Omd Devices Llc Fluorescent composition for the manufacture of cd-rom type optical memory disks
WO2000015425A1 (en) * 1998-09-17 2000-03-23 Omd Devices Llc Organic recording medium for fluorescent worm disks
WO2000048177A1 (en) * 1999-02-12 2000-08-17 Trid Store Ip, L.L.C. Method of increasing fluorescent signal of optical discs with fluorescent reading

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5370970A (en) * 1991-06-06 1994-12-06 Pioneer Electronic Corporation Write-once-read-many optical disk
WO1999024527A1 (en) * 1997-11-07 1999-05-20 Omd Devices Llc Fluorescent composition for the manufacture of cd-rom type optical memory disks
WO2000015425A1 (en) * 1998-09-17 2000-03-23 Omd Devices Llc Organic recording medium for fluorescent worm disks
WO2000048177A1 (en) * 1999-02-12 2000-08-17 Trid Store Ip, L.L.C. Method of increasing fluorescent signal of optical discs with fluorescent reading

Also Published As

Publication number Publication date
KR20060089222A (en) 2006-08-08
JP2007507818A (en) 2007-03-29
MXPA06003527A (en) 2006-06-08
CA2540685A1 (en) 2005-04-07
CN1886788A (en) 2006-12-27
EP1671322A2 (en) 2006-06-21
TW200518085A (en) 2005-06-01
WO2005031723A2 (en) 2005-04-07

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