Photodetector with regions to detect reflected light pass throug
Photodetector, diffraction grating, optical pickup and...
Photoelectric sensor, information recording system, and informat
Photoelectric sensor, information recording system, and informat
Photomagnetic head apparatus
Photorefractive, erasable, compact laser disk
Physically optimized optical disc structure, method and apparatu
Pick-up
Pick-up assembly for video disc player
Pick-up device for use in an optical information recording syste
Pick-up for selectively reading and writing an optical recording
Pick-up needle
Pick-up with adaptation
Pickup apparatus and method for laser beams having different wav
Pickup apparatus for disk player having a frame for...
Pickup apparatus for multi-layer optical disc
Pickup arm retainer for video disc cartridge
Pickup arm suspension for video disc cartridge
Pickup arm with servo-controlled stylus
Pickup cartridge