WO2009141552A3 - Systeme ameliore de lecture optique d'informations memorisees sur un support reflechissant - Google Patents

Systeme ameliore de lecture optique d'informations memorisees sur un support reflechissant Download PDF

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Publication number
WO2009141552A3
WO2009141552A3 PCT/FR2009/050814 FR2009050814W WO2009141552A3 WO 2009141552 A3 WO2009141552 A3 WO 2009141552A3 FR 2009050814 W FR2009050814 W FR 2009050814W WO 2009141552 A3 WO2009141552 A3 WO 2009141552A3
Authority
WO
WIPO (PCT)
Prior art keywords
read
information stored
medium
optical read
improved system
Prior art date
Application number
PCT/FR2009/050814
Other languages
English (en)
Other versions
WO2009141552A2 (fr
Inventor
Philippe Hebert
Original Assignee
Centre National D'etudes Spatiales
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 Centre National D'etudes Spatiales filed Critical Centre National D'etudes Spatiales
Publication of WO2009141552A2 publication Critical patent/WO2009141552A2/fr
Publication of WO2009141552A3 publication Critical patent/WO2009141552A3/fr

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
    • G11B23/505—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of disk carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • G11B33/1446—Reducing contamination, e.g. by dust, debris
    • 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
    • G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

L'invention concerne un systme de lecture optique d'informations mmorises sur un support rflchissant, comprenant un dispositif de lecture comprenant un moyen d'mission (Dr) d'un faisceau de lecture (Fr), un moyen de focalisation du faisceau de lecture sur une zone lire du support, un moyen de rception de l'nergie lumineuse rflchie par le support et un moyen de traitement des signaux fournis par le moyen de rception. Le systme selon l'invention comprend galement un dispositif de nettoyage comprenant un moyen d'mission (DUV; 50, 60) d'un faisceau de nettoyage (FUV) sur une zone nettoyer du support situe en amont de la zone lire.
PCT/FR2009/050814 2008-05-07 2009-05-04 Systeme ameliore de lecture optique d'informations memorisees sur un support reflechissant WO2009141552A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0853049A FR2931009B1 (fr) 2008-05-07 2008-05-07 Systeme ameliore de lecture optique d'informations memorisees sur un support reflechissant
FR0853049 2008-05-07

Publications (2)

Publication Number Publication Date
WO2009141552A2 WO2009141552A2 (fr) 2009-11-26
WO2009141552A3 true WO2009141552A3 (fr) 2010-02-18

Family

ID=39672921

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2009/050814 WO2009141552A2 (fr) 2008-05-07 2009-05-04 Systeme ameliore de lecture optique d'informations memorisees sur un support reflechissant

Country Status (2)

Country Link
FR (1) FR2931009B1 (fr)
WO (1) WO2009141552A2 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744833A (en) * 1987-06-11 1988-05-17 International Business Machines Corporation Electrostatic removal of contaminants
EP0350021A2 (fr) * 1988-07-08 1990-01-10 Cauldron Limited Partnership Enlevage de contaminants de surface par irradiation à l'aide d'une source à haute énergie
WO1997021214A1 (fr) * 1995-12-04 1997-06-12 Yves Bernard Andre Dispositif de lecture optique d'informations numeriques sur un support, notamment dispositif de lecture de disque a lecture laser
US5669979A (en) * 1993-09-08 1997-09-23 Uvtech Systems, Inc. Photoreactive surface processing
US20010050091A1 (en) * 1998-03-19 2001-12-13 Seagate Technology Llc Method apparatus of disc burnishing with a glide/burnish head
US6394105B1 (en) * 1998-03-19 2002-05-28 Seagate Technology, Inc. Integrated laser cleaning and inspection system for rigid thin film media for magnetic recording application
US6453496B1 (en) * 2000-07-25 2002-09-24 Anam Semiconductor, Inc. Apparatus for removing contaminant particles on a photomask
WO2003107345A1 (fr) * 2002-06-14 2003-12-24 Koninklijke Philips Electronics N.V. Dispositif permettant le balayage et le nettoyage d'un support d'informations

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744833A (en) * 1987-06-11 1988-05-17 International Business Machines Corporation Electrostatic removal of contaminants
EP0350021A2 (fr) * 1988-07-08 1990-01-10 Cauldron Limited Partnership Enlevage de contaminants de surface par irradiation à l'aide d'une source à haute énergie
US5669979A (en) * 1993-09-08 1997-09-23 Uvtech Systems, Inc. Photoreactive surface processing
WO1997021214A1 (fr) * 1995-12-04 1997-06-12 Yves Bernard Andre Dispositif de lecture optique d'informations numeriques sur un support, notamment dispositif de lecture de disque a lecture laser
US20010050091A1 (en) * 1998-03-19 2001-12-13 Seagate Technology Llc Method apparatus of disc burnishing with a glide/burnish head
US6394105B1 (en) * 1998-03-19 2002-05-28 Seagate Technology, Inc. Integrated laser cleaning and inspection system for rigid thin film media for magnetic recording application
US6453496B1 (en) * 2000-07-25 2002-09-24 Anam Semiconductor, Inc. Apparatus for removing contaminant particles on a photomask
WO2003107345A1 (fr) * 2002-06-14 2003-12-24 Koninklijke Philips Electronics N.V. Dispositif permettant le balayage et le nettoyage d'un support d'informations

Also Published As

Publication number Publication date
FR2931009B1 (fr) 2013-04-26
FR2931009A1 (fr) 2009-11-13
WO2009141552A2 (fr) 2009-11-26

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