Objective lens, reproducing apparatus and reproducing method

Objective optical element and optical pickup apparatus

Objective optical element with multiple diffractive surfaces...

Objective optical element, optical pickup apparatus and...

Objective optical system and optical information...

Objective optical system and optical information...

Objective optical system for optical pick-up

Objective optical system for optical recording media and...

Objective optical system for optical recording media and...

Objective optical system, optical pickup apparatus and...

Offset adjusting circuit for optical disc and offset...

Offset optics for use with optical heads

On-track detecting circuit for use in tracking servo apparatus

One-bit data reproducing system having controllable low pass...

Only-readable three-dimensional optical storage device

Operating current modifying device and method

Optical and magneto-optic data storage systems utilizing transmi

Optical apparatus for effecting recording and/or reproducing of

Optical apparatus for optical pickup

Optical apparatus for recording/reproducing and...