OPTICAL PICKUP OBJECTIVE, OPTICAL PICKUP, AND DISK DRIVE

Details for Australian Patent Application No. 2002311204 (hide)

Owner SONY CORPORATION

Inventors HINENO, Satoshi; TAKAHASHI, Toyokazu

Pub. Number AU-A-2002311204

PCT Number PCT/IB02/01755

PCT Pub. Number WO2002/103430

Priority 2001-152168 22.05.01 JP; 2002-066804 12.03.02 JP

Filing date 22 May 2002

Wipo publication date 2 January 2003

International Classifications

G02B 013/00 Optical objectives specially designed for the purposes specified below

G02B 013/18 Optical objectives specially designed for the purposes specified below - with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

G11B 007/135 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - Means for guiding the beam from source to record carrier or from record carrier to detector

Event Publications

19 December 2002 Complete Application Filed

  Priority application(s): 2001-152168 22.05.01 JP; 2002-066804 12.03.02 JP

15 May 2003 Application Open to Public Inspection

  Published as AU-A-2002311204

11 March 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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