OBJECTIVE LENS FOR OPTICAL INFORMATION RECORDING MEDIA

Details for Australian Patent Application No. 2003289306 (hide)

Owner ASAHI GLASS COMPANY, LIMITED

Inventors SEKINE, Minoru

Pub. Number AU-A-2003289306

PCT Number PCT/JP2003/0158

PCT Pub. Number WO2004/053557

Priority 2002-357564 10.12.02 JP

Filing date 10 December 2003

Wipo publication date 30 June 2004

International Classifications

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

G02B 003/00 Simple or compound lenses

G02B 003/02 Simple or compound lenses - with non-spherical faces

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

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

Event Publications

1 April 2004 Complete Application Filed

  Priority application(s): 2002-357564 10.12.02 JP

5 August 2004 Application Open to Public Inspection

  Published as AU-A-2003289306

25 August 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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