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US 8,796,643 B2Granted
Radiographic image erasing device
AssigneeFUJIFILM Corporation
InventorsTakahiko Mizusawa, Hiromi Ishikawa, Kazuoki Komiyama, Tomoki Inoue
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AssigneeFUJIFILM Corporation
InventorsTakahiko Mizusawa, Hiromi Ishikawa, Kazuoki Komiyama, Tomoki Inoue
Estimating the term…
A radiographic image erasing device includes: a first light source that applies first erase light including a wavelength in the ultraviolet region to a storage phosphor sheet in which a radiographic image has been stored and recorded; a second light source that is placed at a height identical to that of the first light source and applies second erase light including a wavelength of a longer wavelength than that of the first erase light to the storage phosphor sheet to which the first erase light has been applied; drive mechanisms that switch the orientations or positions of the first light source and the second light source; and a controller that controls the drive mechanisms in accordance with a conveyance direction of the storage phosphor sheet such that the first erase light and the second erase light are applied in this order to the storage phosphor sheet.
A radiographic image erasing device comprising:
A non-transitory computer-readable storage medium storing a radiographic image erasing program for a radiographic image erasing device comprising a first light source that applies first erase light including a wavelength component in the ultraviolet region to a storage phosphor sheet in which a radiographic image has been stored and recorded, a second light source that is placed at a height identical to that of the first light source with respect to the storage phosphor sheet and applies second erase light including a wavelength component of a longer wavelength than that of the wavelength component of the first erase light to the storage phosphor sheet to which the first erase light has been applied by the first light source, and drive mechanisms that switch the orientations or positions of the first light source and the second light source,
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Using stimulable phosphors, e.g. stimulable phosphor sheets: erasing of stimulable sheets, e.g. with light, heat or the like
Measurement of nuclear or x-radiation
About 6 years 3 months of term left · ends 18 Jan 2033 (estimated)
This application claims priority under 35 USC 119 from Japanese Patent Application No. 2011-247748 filed Nov. 11, 2011, the disclosure of which is incorporated by reference herein.
1. Field of the Invention
The present invention pertains to a radiographic image erasing device and particularly relates to a radiographic image erasing device, a radiographic image erasing program, and a radiographic image reading and erasing device that erase a radiographic image recorded in a storage phosphor sheet.
Embodiments of the invention will be described in detail with reference to the following figures, wherein:
FIG. 1 is a schematic configuration diagram of a radiographic image reading and erasing device pertaining to a first embodiment;
FIG. 2 is a schematic block diagram of an electrical system of the radiographic image reading and erasing device pertaining to the first embodiment;
Embodiments of the invention will be described below with reference to the drawings.
FIG. 1 shows the schematic configuration of a radiographic image reading and erasing device 10 pertaining to the present embodiment. As shown in FIG. 1, the radiographic image reading and erasing device 10 is configured to include a scanning optical system 14, an image reading component 16, an eraser 18, conveyance rollers 20, a first detection sensor 22, and a second detection sensor 24. The scanning optical system 24 scans, with excitation light L1, a storage phosphor sheet P that has been inserted from an insertion opening 12 and in which a radiographic image has been recorded. The image reading component 16 photoelectrically reads, and outputs as image data, photostimulated luminescence light L2 that has been emitted from the storage phosphor sheet P as a result of the excitation light L1 being applied to the storage phosphor sheet P. The eraser 18 erases the radiographic image remaining in the storage phosphor sheet P from which the image has been read. The conveyance rollers 20 convey the storage phosphor sheet P. The first detection sensor 22 and the second detection sensor 24 detect the storage phosphor sheet P.
Further, the radiographic image reading and erasing device 10 has an evacuation area 26 to which the storage phosphor sheet P from which the radiographic image has been erased by the eraser 18 is temporarily evacuated. The radiographic image reading and erasing device 10 has a configuration that can reverse the rotation of the conveyance rollers 20 so that the storage phosphor sheet P that has been temporarily evacuated to the evacuation area 26 can be conveyed in the direction of arrow B, which is the opposite of the direction of arrow A, and the radiographic image still remaining in the storage phosphor sheet P can be erased again by the eraser 18.