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EP0142839A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Radiation image information read-out system

Assignee: Fujifilm Holdings Corp
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Filing: 1984-11-16
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Granted: —
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Expires: 2004-11-16
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Abstract

Abstract @ A radiation image read-out system comprises a point-source light for projecting a spot of stimulating rays onto a stimulable phosphor sheet carrying a radiation image stored therein, and a solid state photoelectric converter which is opposed to the spot-like portion of the stimulable phosphor sheet exposed to the spot of stimulating rays and is adapted to receive light from the spot-like portion. The point-source light and the solid state photoelectric converter are moved with respect to the stimulable phosphor sheet to two- dimensionally scan the stimulable phosphor sheet, thereby reading out the radiation image stored therein.

Inventors

  • 👤 Kazuhiro Fuji Photo Film Co. Ltd. Kawajiri
  • 👤 Hiroshi Fuji Photo Film Co. Ltd. Sunagawa
  • 👤 Nobuharu Fuji Photo Film Co. Ltd. Nozaki
  • 👤 Yuichi Fuji Photo Film Co. Ltd. Hosoi
  • 👤 Kenji Fuji Photo Film Co. Ltd. Takahashi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 19:50
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/08; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/2012; G01T1/2014; G06; G06K; G06K7/00; G06K7/10; G06K7/12; H; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/029; H10; H10F; H10F30/00; H10F30/10; H10F77/00; H10F77/40; H10F77/496

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 94 words
A radiation image information read-out system comprising point-source light for projecting a spot of stimulating rays onto a stimulable phosphor sheet carrying a radiation image stored therein, a solid state photoelectric converter which is opposed to the spot-like portion of the stimulable phosphor sheet exposed to the spot of stimulating rays and is adapted to receive light emitted from the spot-like portion to convert it into an electric signal, and driving means for moving the point-source light and the solid state photoelectric converter with respect to the stimulable phosphor sheet to scan the same.
Claim 2
Dependent Claim 94 words
A radiation image information read-out system comprising point-source light for projecting a spot of stimulating rays onto a stimulable phosphor sheet carrying a radiation image stored therein, a solid state photoelectric converter which is opposed to the spot-like portion of the stimulable phosphor sheet exposed to the spot of stimulating rays and is adapted to receive light emitted from the spot-like portion to convert it into an electric signal, and driving means for moving the point-source light and the solid state photoelectric converter with respect to the stimulable phosphor sheet to scan the same.
Claim 3
Dependent Claim 105 words
A radiation image information read-out system as defined in Claim 1 in which said solid state photoelectric converter comprises a light shielding layer having a transparent window of a size corresponding to the size of a picture element, a first transparent electrode layer, a photoconductive material layer having a band gap not larger. than the energy of radiation having the wavelength of the light emitted from the stimulable phosphor sheet upon exposure to the spot of stimulating rays, and a second transparent electrode layer stacked on a transparent substrate in this order, and is formed integrally with said point-source light disposed behind the transparent substrate.

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