Multiple beam optical read-write head for data recording

摘要

A record/playback information system has a multi-beam optical head with multiple light sources (11). An optical system (12-20) directs the light beams on the recording surface of the recording medium (15) and receives the reflected light beams, a reflecting mirror (16a) being used to guide the light beams onto the recording surface. A rotation control system (16) is assigned to the reflecting mirror, positioning the light beams on tracks of the recording medium to record and playback information.