Radiation image read-out apparatus

Details Radiation image read-out apparatus Radiation image read-out apparatus

1991-03-08

1991-09-10

Hannaher, Constantine

Radiant energy

Automatic/serial detection of similar sources

2504841, G03B 4200

Patent

active

050476432

ABSTRACT:
A radiation image read-out apparatus comprises a sheet holding device for holding a stimulable phosphor sheet on a cylindrical surface, and a spinner having a deflection mirror for reflecting stimulating rays coming from a semi-transparent mirror to the stimulable phosphor sheet, and a condensing lens which converges the reflected stimulating rays on the stimulable phosphor sheet and which has equal focal lengths with respect to stimulating rays and light emitted by the stimulable phosphor sheet. The deflection mirror and the condensing lens rotate together to scan the stimulating rays on the stimulable phosphor sheet in a main scanning direction, which sheet is moved in a sub-scanning direction. A detection lens converges the emitted light, which has passed through the condensing lens and comes from the semi-transparent mirror. An aperture plate allows only the emitted light after being thus converged to pass therethrough, and a photodetector is positioned at the rear of the aperture plate to detect the emitted light.

REFERENCES:
patent: 4258264 (1981-03-01), Kotera et al.
patent: 4276473 (1981-06-01), Kato et al.
patent: 4315318 (1982-02-01), Kato et al.
patent: 4387428 (1983-06-01), Ishida et al.
patent: 4651220 (1987-03-01), Hosoi et al.
patent: 4886968 (1989-12-01), Ohnishi et al.
patent: 4945238 (1990-07-01), Muraishi

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