Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
Inventor
active
Beam shaper device for optical read/write heads
Equivalent wollaston prism for an optical pick-up head and an op
Focusing and tracking method and system for the read/write head
Objective lens for optical pick-up head of optical disk drive
Optical grating for a bifocal access head of optical disk drive
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