| 摘要 |
An optical recording device forms on a magneto-optical disk (10) a recording mark corresponding to a recording data by focusing a light beam (d) into a light spot on a projection start position on the moving magneto-optical disk (10) and by raising the temperature of a portion of the magneto-optical disk (10) exposed to the light spot. An optical reproduction device includes a light-beam deflecting section (2a) having a polygon mirror (8), a holographic disk, and a plurality of semiconductor lasers for repeatedly performing a unidirectional scanning in synchronism with recording data or a recording clock signal by moving the light spot from the projection start position in a direction equal to the moving direction of the magneto-optical disk (10) and to follow the moving speed of the magnet-optical disk (10). <IMAGE> |
