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US 7,460,641 B2Granted
X-ray image taking device
AssigneeCanon Kabushiki Kaisha
InventorHiroaki Niwa
Life of this patent
Estimating the term…
Abstract
An X-ray detector for drive timing setting is provided outside an image taking region of a sensor unit. Thus, an X-ray image taking device is constructed such that a case structure is simple and a preferable image which is not affected by back-scattering can be captured.
Claims1
An X-ray image taking system, comprising:
- an X-ray image taking device including a sensor that receives an X-ray on an image taking region thereof and converts the received X-ray into image data;
- an X-ray detecting unit that receives the X-ray and transmits a signal in accordance with the reception of an X-ray, and is configured for separating the X-ray detecting unit from the X-ray image taking device and for being provided outside the image taking region of the sensor;
- a driving unit for moving the image taking device;
- a control unit that receives the signal transmitted from the X-ray detecting unit, and transmits a stop instruction signal to the drive unit so as to stop a movement of the image taking device, on the basis of a timing when a charge accumulation operation executed on the sensor completes and a post-delay period which is measured in advance,
- wherein the control unit sets the post-delay period to a period from a time when an X-ray irradiation operation is negated and a time when the control unit ends the reception of the signal transmitted from the X-ray detecting unit;
- and
- a connecting mechanism that externally connects the X-ray detecting unit with the X-ray image taking device.
4 more elements
Dependencies are inferred from the claim text.