Optical scanning device for two types of record carriers

Optical scanning device for use with multiple types of...

Optical scanning device having less response to stray...

Optical scanning device using a plurality of scanning spots

Optical scanning device with a selective optical diaphragm

Optical scanning device with an actuator coil bent around...

Optical scanning device with coarse and fine scanning control

Optical scanning device with coma correction for improved...

Optical scanning device with parallel-controlled actuators

Optical scanning device with two-wavelength laser for HD and...

Optical scanning for record carriers adapted for reading with di

Optical scanning head

Optical scanning system for a sinusoidal data track

Optical scanning unit comprising a first and a second lens unit

Optical scanning unit comprising a translational-position and an

Optical scanning unit for projecting a beam onto an optical reco

Optical scanning unit for reading information from an optical re

Optical scanning with aberration correction

Optical seeking apparatus with track crossing signal generation

Optical seeking method and apparatus generating track count sign