An optical tape recorder is disclosed using the linear motion of a slide to record data across a slowly moving tape made of light sensitive material. Data is recorded on the tape by modulating the output of a laser in accordance with the data and focussing the modulated light onto the tape using a lens...http://www.google.es/patents/US4567585?utm_source=gb-gplus-sharePatente US4567585 - Optical tape recorder using linear scanning
