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TW200638067A - Dual layer readout with improved tolerances - Google Patents

Dual layer readout with improved tolerances

Info

Publication number
TW200638067A
TW200638067A TW094146580A TW94146580A TW200638067A TW 200638067 A TW200638067 A TW 200638067A TW 094146580 A TW094146580 A TW 094146580A TW 94146580 A TW94146580 A TW 94146580A TW 200638067 A TW200638067 A TW 200638067A
Authority
TW
Taiwan
Prior art keywords
radiation beam
dual layer
improved tolerances
optical
layer readout
Prior art date
Application number
TW094146580A
Other languages
Chinese (zh)
Inventor
Bernardus Hendrikus Wilhelmus Hendriks
Stein Kuiper
Original Assignee
Koninkl 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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200638067A publication Critical patent/TW200638067A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
    • G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length
    • 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
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive elements
    • 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
    • G11B7/1376—Collimator 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
    • G11B7/12—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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1288—Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Head (AREA)
  • Lenses (AREA)

Abstract

An optical scanning device for scanning an optical record carrier (OD) with an objective lens (12) for converging a radiation beam to a spot (18) on an information layer (3, 4) of the record carrier (OD), and an optical correcting system (10) for changing the vergence of the radiation beam and the amount of spherical aberration in the radiation beam towards the objective lens, wherein the vergence and the amount of spherical aberration in the radiation beam can be adapted independently.
TW094146580A 2004-12-29 2005-12-26 Dual layer readout with improved tolerances TW200638067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04107033 2004-12-29

Publications (1)

Publication Number Publication Date
TW200638067A true TW200638067A (en) 2006-11-01

Family

ID=36499280

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094146580A TW200638067A (en) 2004-12-29 2005-12-26 Dual layer readout with improved tolerances

Country Status (2)

Country Link
TW (1) TW200638067A (en)
WO (1) WO2006070329A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006131882A1 (en) * 2005-06-10 2006-12-14 Koninklijke Philips Electronics N.V. Variable fluid lens having two menisci
US7936646B2 (en) 2006-08-15 2011-05-03 Koninklijke Philips Electronics N.V. Spherical aberration compensation adjustment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9002841A (en) * 1990-12-21 1992-07-16 Philips Nv METHOD AND APPARATUS FOR REGISTRATION, READING AND DELETING A MULTI-SPACE REGISTRATION CARRIER, AND REGISTRATION CARRIER SUITABLE FOR THIS METHOD AND APPARATUS.
TW451072B (en) * 1999-09-30 2001-08-21 Koninkl Philips Electronics Nv Optical scanning device
JP2004516594A (en) * 2000-12-11 2004-06-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Device for reading and / or writing to record carriers
JP4376785B2 (en) * 2002-09-19 2009-12-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Optical scanning device
CN1720130A (en) * 2002-12-03 2006-01-11 皇家飞利浦电子股份有限公司 Manufacturing of lens elements
KR101154358B1 (en) * 2003-02-25 2012-06-15 코닌클리케 필립스 일렉트로닉스 엔.브이. Improvements in and relating to fluid filled devices
CN100347773C (en) * 2003-03-20 2007-11-07 皇家飞利浦电子股份有限公司 Optical scanning device

Also Published As

Publication number Publication date
WO2006070329A3 (en) 2006-08-31
WO2006070329A2 (en) 2006-07-06

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