Patent ID: 6816566
Filing Date: 2004-11-09
Classification: A61B

Abstract:
An X-ray computed tomography apparatus comprising:an X-ray tube configured to irradiate an object with X-rays; a detector configured to detect X-rays transmitted through the object; a noncontact type signal transmission device configured to transmit a signal output from said detector; a first unit configured to generate image data based on the signal transmitted through said noncontact type signal transmission device; and a second unit configured to display the image data, wherein said noncontact type signal transmission device comprises: a stationary portion; a rotating ring disposed inside said stationary portion; a plurality of light-emitting devices discretely arranged on an outer surface of said rotating ring; a plurality of light-receiving devices discretely arranged on an inner surface of said stationary portion; and a plurality of beam condensing devices configured to condense light from said plurality of light-emitting devices and arranged between said plurality of light-emitting devices and said plurality of light-receiving devices, said light striking a light-receiving device within a width substantially larger than a width of an effective light-receiving surface of said light-receiving device.