Radiation image read-out device
AssigneeFuji Photo Film Co., Ltd.
InventorsHisatoyo Kato, Seiji Matsumoto, Junji Miyahara
Life of this patent
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Abstract
A radiation image recorded in a stimulable phosphor is read out by stimulating the stimulable phosphor by use of stimulating rays such as visible light or infrared rays. Upon stimulated, the stimulable phosphor emits light which is detectable by a photosensor. The radiation image readout device includes a photosensor for detecting the light emitted by the phosphor, and a reflecting optical element like a mirror located between the phosphor and the photodetector for reflecting stimulating rays advancing between the phosphor and the photosensor toward the phosphor. The reflecting optical element has a very small size not to intercept the light emitted by the phosphor and detected by the photosensor as much as possible.
Claims5
A radiation image read-out device for reading out radiation image information carried by the light emitted by a stimulable phosphor upon being stimulated with stimulating rays according to the image information recorded in the stimulable phosphor in advance by exposure to imagewise radiation, said image read-out device comprising a photosensor located close to a stimulable phosphor plate for detecting the light emitted by the stimulable phosphor plate upon stimulation with stimulating rays, and a reflecting optical element disposed between the photosensor and the stimulable phosphor plate for reflecting the stimulating rays advancing between the photosensor and the stimulable phosphor plate toward the stimulable phosphor plate, said reflecting optical element having a size small enough to allow most of the light emitted by the stimulable phosphor to be received by the photosensor.
Dependencies are inferred from the claim text.