tape drives, optical disk drives and CD-ROM drives of the type utilizing arrays of lasers for reading, recording and/or erasing data on optical media; compact disc players, photo-CD players, video players, random access memory, optical cards and combination of the above; microrefractive and microdiffractive gratings and/or lenses integrated with diode lasers, and gratings, lenses, wave-plates, polarizers and/or prisms, detector arrays, microelectronics, servo-controls and media drives integra...