| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an X-ray fluoroscopic apparatus capable of quickly obtaining appropriate images even when a collimator is in a closed state and reducing the amount of X-ray exposure to a subject. <P>SOLUTION: The X-ray fluoroscopic apparatus includes an automatic luminance control circuit 12 for making constant the luminance of images displayed on an image display part 31, and a collimator control part 25 detecting the open amount of collimator leaves in a collimator part 23. A control part 10 stops feedback control of X-ray output by the automatic luminance control circuit 12 when the open amount of the collimator leaves is a predetermined value or less. <P>COPYRIGHT: (C)2012,JPO&INPIT |
