Optical pickup using split beams impinging on different photodet
Optical pickup using three beam tracking method
OPTICAL PICKUP USING TWO LASER BEAM SOURCES OF DIFFERENT...
Optical pickup using two-wavelength light source module
Optical pickup using two-wavelength light source module and...
Optical pickup which includes a single objective lens having mag
Optical pickup with a diffraction element consist of six...
Optical pickup with a double refraction polarizing plate to spli
Optical pickup with a first detector to receive reflected data c
Optical pickup with a hologram to limit the aperture of two...
Optical pickup with a vertically movable aperture means
Optical pickup with an aberration correction lens assembly
Optical pickup with an optical system controlled by an actuator
Optical pickup with conversion of diffusion angle of outgoing li
Optical pickup with holding mechanism to effectively prevent...
Optical pickup with improved collimating lens for use with...
Optical pickup with reduced size
Optical pickup with two optical systems each generates a laser b
Optical pickup, including a mirror for changing light...
Optical pickup, information recording apparatus and...