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Title:
LIGHT DETECTION SENSOR, LIGHT DETECTION DEVICE, AND PAPER SHEETS PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/188096
Kind Code:
A1
Abstract:
A light detection sensor 10 is provided with a light source 12 which irradiates an object T to be detected with light, and a light-receiving unit 11 provided with a plurality of detectors for detecting the intensity of light from the object T to be detected. The plurality of detectors include at least a first detector 11a for detecting the intensity of light of a first wavelength band, and a second detector 11b for detecting the intensity of light of a second wavelength band different from the first wavelength band. The first detector 11a has a sensitivity to the light of the first wavelength band which is lower than a sensitivity of the second detector 11b to the light of the second wavelength band. The first detector 11a has a light-receiving area greater than a light-receiving area of the second detectors 11b.

Inventors:
KONISHI, Hiroshi (3-1 Shimoteno 1-chome, Himeji-sh, Hyogo 67, 〒6708567, JP)
SATO, Takeshi (3-1 Shimoteno 1-chome, Himeji-sh, Hyogo 67, 〒6708567, JP)
OKUI, Yuuichirou (3-1 Shimoteno 1-chome, Himeji-sh, Hyogo 67, 〒6708567, JP)
Application Number:
JP2019/009175
Publication Date:
October 03, 2019
Filing Date:
March 07, 2019
Export Citation:
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Assignee:
GLORY LTD. (3-1 Shimoteno 1-chome, Himeji-shi Hyogo, 67, 〒6708567, JP)
International Classes:
H04N1/028; G01J1/02; G01N21/64; G07D7/00; G07D7/12; H04N9/07
Foreign References:
JP2011170695A2011-09-01
JP2006352466A2006-12-28
JP2009182189A2009-08-13
JPH09211147A1997-08-15
JP2016053881A2016-04-14
JP2003130727A2003-05-08
Attorney, Agent or Firm:
WASHIDA, Kimihito (8th Floor, Shinjuku First West Bldg. 1-23-7, Nishi-Shinjuku, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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