| 摘要 |
PURPOSE:To make constitution considerably simple by providing a movable part which is reciprocatively movable in a horizontal direction to a holding member which is extensible in a vertical direction, and moving one X-ray tube in the direction of inter-pupil distance thereby obtaining a stereoscopic parallax. CONSTITUTION:A multiplex pipe 3 which is freely extensible in a vertical direction is provided to a holding device 2 and a holding member 5 for an X-ray tube 4 is mounted to the leading end thereof. A holding arm 6 which holds the X-ray tube 4 at its leading end part and is freely slidable in a horizontal direction is disposed to the holding member 5 and further, the arm 6 is formed restably for a fixed time in the maximum reciprocative points in its horizontal direction by the effect of a disc 8 driven by a motor or the like, a connecting rod 5 and a long hole 9a. This makes it possible to move the one X-ray tube 4 in the direction of the inter-pupil distance and to set its moving distance so as to obtain a stereoscopic parallax and also makes it possible to perform photographing by resting a subject in the photographing position and to increase reliability with the simple constitution. |
