Title:
IMAGE READING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/044573
Kind Code:
A1
Abstract:
This image reading device (100) has: a plurality of light-receiving pixels (10) that receive reflection light reflected by an object (6) to be imaged disposed on a reference surface (S); a first light-shielding member (11) that includes a plurality of first openings (31) and is disposed between the plurality of light-receiving pixels (10) and the reference surface (S); a second light-shielding member (12) that includes a plurality of second openings (32) and is disposed between the plurality of first openings (31) and the reference surface (S); and a plurality of condensing lenses (14) that are disposed so as to have a gap therefrom to the plurality of second openings (32) and between the plurality of second openings (32) and the reference surface (S). The plurality of condensing lenses (14), the second light-shielding member (12), the first light-shielding member (11), and the plurality of light-receiving pixels (10) are disposed in positions where the reflection light passes in order through the condensing lenses (14) corresponding to the respective light-receiving pixels (10), the second openings (32) corresponding to the respective light-receiving pixels (10), and the first openings (31) corresponding to the respective light-receiving pixels (10), and is incident to the light-receiving pixels (10).
Inventors:
KAWANO HIROYUKI (JP)
NAKAGAWA NAOKI (JP)
ONO TAKESHI (JP)
TAKUSHIMA SHIGERU (JP)
MAKITA TAISUKE (JP)
TOKIDA NAOYUKI (JP)
NAKAGAWA NAOKI (JP)
ONO TAKESHI (JP)
TAKUSHIMA SHIGERU (JP)
MAKITA TAISUKE (JP)
TOKIDA NAOYUKI (JP)
Application Number:
PCT/JP2019/034944
Publication Date:
March 11, 2021
Filing Date:
September 05, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04N1/028; H01L27/146; H04N1/191; H04N5/369
Foreign References:
| JPS63156473A | 1988-06-29 | |||
| JP2013045096A | 2013-03-04 | |||
| JP2015133658A | 2015-07-23 | |||
| JP2009124573A | 2009-06-04 |
Attorney, Agent or Firm:
YAMAGATA Yoichi et al. (JP)
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