| 摘要 |
PURPOSE:To reduce the weight of movable parts by separating a light pickup section that condenses light on a recording medium using a single converging light transmitter from a fixed optical system including a laser light source and a photodetecting element. CONSTITUTION:The fixed optical system 10 including the laser light source 3 and photodetecting element 7 is separated from the light pickup section 19 driven by an actuator 20, and they are connected optically by the single converging light transmitter 15. Transmission of an image is possible if the length of the converging light transmitter 15 is less than about 1m. |
