Optical apparatus and method for reproducing information recorde
Optical detector for magnetic fields employing feedback circuitr
Optical disc having a protective layer which is thicker at its o
Optical disc having a protective layer which is thicker at its o
Optical head
Optical head with solid immersion lens and varying cross...
Optical integrated device for magneto-optical reproducing head
Optical read-out magnetic head
Optical reproducing system
Optoelectronic device for reading data contained on a magnetic m