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Patent Searching and Data


Title:
RADIATION IMAGE READING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/070325
Kind Code:
A1
Abstract:
This radiation image reading device is provided with: a light scanning unit that scans, with excitation light and along a scan line, a surface of a recording medium having a radiation image recorded therein; a light detection unit that detects, in a detection plane including the scan line and intersecting with the surface of the recording medium, signal light which is released from the surface of the recording medium as a result of scanning with the excitation light; and an optical filter that is disposed between the surface of the recording medium and the light detection unit. The transmission rate at which the excitation light, reflected by the surface of the recording medium, passes through the optical filter, and the transmission rate at which the signal light, released from the surface of the recording medium so as to form an angle larger than a predetermined angle relative to a direction perpendicular to the scan line within the detection plane, passes through the optical filter, are each smaller than the transmission rate at which the signal light, released from the surface of the recording medium so as to form an angle smaller than the predetermined angle in the direction perpendicular to the scan line within the detection plane, passes through the optical filter.

Inventors:
MIYAMOTO Yuichi (1126-1 Ichino-cho, Higashi-ku, Hamamatsu-sh, Shizuoka 58, 〒4358558, JP)
TAKASAKA Masaomi (1126-1 Ichino-cho, Higashi-ku, Hamamatsu-sh, Shizuoka 58, 〒4358558, JP)
Application Number:
JP2017/036177
Publication Date:
April 19, 2018
Filing Date:
October 04, 2017
Export Citation:
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Assignee:
HAMAMATSU PHOTONICS K.K. (1126-1, Ichino-cho Higashi-ku, Hamamatsu-sh, Shizuoka 58, 〒4358558, JP)
International Classes:
H04N1/04; A61B6/00; G02B5/26; G02B5/28; G03B42/02; G21K4/00
Domestic Patent References:
WO2012169447A12012-12-13
WO2015137084A12015-09-17
Foreign References:
JP2002107848A2002-04-10
JP2002090922A2002-03-27
JP2001201809A2001-07-27
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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