Optical system for recording and reproducing for use in optical
Optical system for recording and reproducing for use in optical
Optical system for recording and/or reproducing an optical infor
Optical system for recording information in erasable and non-era
Optical system for recording, reproducing, and/or erasing inform
Optical system for reproducing information
Optical system for simultaneous reading of multiple data tracks
Optical system for spatially controlling light polarization...
Optical system for synthesizing plural light beams
Optical system for tracing information recording medium with mul
Optical system for tracking an information recording medium
Optical system for two-dimensional positioning of light beams
Optical system having a convex surface for accessing a...
Optical system having a precision angular displacement mechanism
Optical system having an objective system and an optical...
Optical system having diode laser light source
Optical system in a magneto-optical memory device
Optical system in a track-following servo system having an ellip
Optical system in magneto-optical recording and reproducing devi
Optical system of optical pick-up