| 摘要 |
<p>PURPOSE:To read images with high efficiency by detecting a pressure wave generated by a recording medium which is irradiated with exciting light. CONSTITUTION:When a radiation source 30 is driven, a radiation 31 which is transmitted through the subject 11 to carry an image of the subject illuminates a sensor 13 and the transmission radiation image of the subject 11 is stored and recorded. A laser beam 19 which is emitted as pulses by a laser 18 and deflected by optical deflectors 20 and 21 scans on the sensor 13. The sensor 13 generates the pressure wave corresponding to the image information and the wave is collected by a microphone 26, which inputs a pressure wave signal S5 to a signal processing circuit 27. The circuit 27 inputs a synchronizing signal S4 synchronizing with the pulse period of the beam 19 from a circuit 23 and processes the signal S5 to output an image signal S6 which carries the image stored and recorded on the sensor 13. Consequently, images are read with high efficiency.</p> |
