| 摘要 |
PROBLEM TO BE SOLVED: To provide a movable X-ray apparatus having means for easily recognizing an X-ray irradiation range limited by a movable X-ray diaphragm without depending on the color of the surface of a subject.SOLUTION: A movable X-ray diaphragm device for adjusting the irradiation range of X-ray irradiating a subject by an X-ray generator, includes a projector sighting device to emit visible light for displaying the X-ray irradiation range in a simulated manner before performing X-ray photography. The projection sighting device has a mechanism for changing the color phase of the visible light. |
