Radiation imaging device with irregular rectangular shape and extraoral dental imaging system therefrom
AssigneeOy Ajat Ltd.
InventorsKONSTANTINOS SPARTIOTIS, TOM SCHULMAN, TUOMAS PANTSAR
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Abstract
A radiation imaging device includes plural individual detectors defining an irregular rectangular active area responsive to x-rays and with different widths along a length of the active area. The individual detectors may be of different rectangular shapes and mounted on a motherboard. The motherboard may be formed of a first module mounting a first of two individual detectors and a second module detachable connected to the first module and mounting a second of two individual detectors.
Claims20
A radiation imaging device, comprising
- an imaging sensor having
- i) a detector module, and
- ii) a plurality of individual pixel detectors mounted on the detector module, with the plurality of individual pixel detectors positioned adjacently in an array that defines an overall active area responsive to x-rays with a length y and a width x, each individual pixel detector composed of pixels, each individual pixel detector having a rectangular shape,
- wherein an average physical gap is defined between each set of adjacent edges of adjacent ones of said individual pixel detectors, each of said average physical gaps of all of said plural individual pixel detectors is up to 400% of a pixel size of the pixels of an image produced by said radiation imaging device as displayed for viewing.
An extra-oral dental x-ray imaging system, comprising:
- an x-ray source adapted for generating x-rays for exposure of such x-rays to an object to be imaged;
- an x-ray imaging device adapted for producing multiple frames from a single x-ray imaging device during at least part of the exposure, said x-ray imaging device comprising a plurality of individual semiconductor pixel detectors in an array defining an active area responsive to x-rays, each detector composed of pixels, said active area having a rectangular shape with length y and a width x, an average physical gap is defined between each set of adjacent edges of adjacent ones of said individual detectors, each of said average physical gaps of all of said plural individual detectors is at least 0.005 mm and up to 400% of a pixel size of the pixels of the image produced by said radiation imaging as displayed for viewing;
- at least one rotational axis around which at least one of the x-ray source and imaging device rotates along a spline, the axis being located between the x-ray source focal point and the x-ray imaging device;
- and
- a processor configured to execute at least two preselected programs for exposure for executing corresponding exposure profiles to compose correspondingly at least two of a group of elements, the elements comprising
- (a) a panoramic image,
- (b) a cephalometric image,
- (c) a transverse slice to a local part of a dental panoramic layer image;
- and
- (d) a 3-D reconstruction of a volume of interest.
A radiation imaging device, comprising:
- a single imaging sensor comprised of a plurality of individual pixel detectors combined in an array defining an active area responsive to x-rays, each detector composed of pixels,
- wherein said active area has an rectangular shape with length y and a width x, and
- wherein an average physical gap is defined between each set of adjacent edges of closest adjacent ones of said individual detectors, each of said average physical gaps of all of said plural individual detectors is up to 400% of a pixel size of the pixels of the image produced by said radiation imaging as displayed for viewing.
Dependencies are inferred from the claim text.