Patent ID: 6925148

Claim:
An X-ray fluoroscopic apparatus comprising: an X-ray source; an X-ray camera located at a position on which X-rays emitted from said X-ray source are incident; a sample table, located between said X-ray source and said X-ray camera, for supporting a sample; a tilting mechanism for tilting said X-ray camera to a given tilting direction; a positioning moving mechanism for moving said sample table in x- and y-axes, orthogonal to each other, on a plane along a surface of said sample table in order to position a sample to be within a visual field of said X-ray camera; a rotating mechanism for rotating said sample table together with said positioning moving mechanism about a z-axis extending in directions in which said sample table moves to and from said X-ray source, said z-axis being orthogonal to said x-axis and said y-axis; a position correction moving mechanism for moving said sample table together with said rotating mechanism and said positioning moving mechanism in the tilting direction of said X-ray camera; a z-axis moving mechanism for moving said sample table together with said position correction moving mechanism, said rotating mechanism and said positioning moving mechanism in the z-axis direction; and a tilting tracing mechanism for driving said correction moving mechanism and said z-axis moving mechanism according to a tilting angle of said X-ray camera while not driving said positioning moving mechanism, when said X-ray camera is tilted by said tilting mechanism, so that a viewpoint of the sample and a fluoroscopic magnification factor before said x-ray camera is tilted can be kept.