AU2003285668A1 - Optical device for recording and reproducing - Google Patents

Optical device for recording and reproducing

Info

Publication number
AU2003285668A1
AU2003285668A1 AU2003285668A AU2003285668A AU2003285668A1 AU 2003285668 A1 AU2003285668 A1 AU 2003285668A1 AU 2003285668 A AU2003285668 A AU 2003285668A AU 2003285668 A AU2003285668 A AU 2003285668A AU 2003285668 A1 AU2003285668 A1 AU 2003285668A1
Authority
AU
Australia
Prior art keywords
reproducing
recording
optical device
optical
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.)
Abandoned
Application number
AU2003285668A
Inventor
Johannes Schleipen
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
Publication of AU2003285668A1 publication Critical patent/AU2003285668A1/en
Abandoned 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
    • G11B7/12—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
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
    • 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
AU2003285668A 2002-12-30 2003-12-18 Optical device for recording and reproducing Abandoned AU2003285668A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP02293260.2 2002-12-30
EP02293260 2002-12-30
PCT/IB2003/006157 WO2004059628A1 (en) 2002-12-30 2003-12-18 Optical device for recording and reproducing

Publications (1)

Publication Number Publication Date
AU2003285668A1 true AU2003285668A1 (en) 2004-07-22

Family

ID=32668920

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003285668A Abandoned AU2003285668A1 (en) 2002-12-30 2003-12-18 Optical device for recording and reproducing

Country Status (2)

Country Link
AU (1) AU2003285668A1 (en)
WO (1) WO2004059628A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1789964A1 (en) 2004-09-02 2007-05-30 Koninklijke Philips Electronics N.V. Optical device for recording and reproducing
WO2006035348A1 (en) * 2004-09-28 2006-04-06 Koninklijke Philips Electronics N.V. Optical scanning device
EP1667129B1 (en) * 2004-12-02 2010-03-17 Thomson Licensing Apparatus for recording angular multiplexed pits
EP1667128A1 (en) * 2004-12-02 2006-06-07 Deutsche Thomson-Brandt Gmbh Apparatus for recording angular multiplexed pits
JP2008276852A (en) 2007-04-27 2008-11-13 Funai Electric Co Ltd Optical pickup device and optical disk drive

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1150281B1 (en) * 1995-02-02 2004-05-12 Pioneer Electronic Corporation Optical pickup apparatus and identification apparatus for identifying the type of optical record medium
JP3476989B2 (en) * 1995-08-04 2003-12-10 パイオニア株式会社 Optical pickup
KR0176949B1 (en) * 1996-03-25 1999-04-15 구자홍 Optical pick up adaptable cd/ dvd

Also Published As

Publication number Publication date
WO2004059628A1 (en) 2004-07-15

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase