Optical pickup device keeping coincident the optical axes of the

Optical pickup device minimizing an undesirable astigmatism

Optical pickup device minimizing an undesirable astigmatism

Optical pickup device of micro optical disc drive

Optical pickup device that corrects the spot shape of...

Optical pickup device that corrects the spot shape of...

Optical pickup device with dual grating element

Optical pickup device with focus error detecting optical...

Optical pickup device with movable objective lens and stationary

Optical pickup device with three beam tracking servo control usi

Optical pickup device, aberration correcting method and...

Optical pickup device, information reproduction/recording...

Optical pickup device, optical disc apparatus and method of...

Optical pickup device, optical disk recording/reproducing appara

Optical pickup device, optical recording and reproducing...

Optical pickup device, optical recording/reproducing...

Optical pickup direction detection unit and optical pickup...

Optical pickup drive control apparatus with vibration restraint

Optical pickup driving apparatus

Optical pickup driving apparatus for an optical disk drive