IMAGING DEVICE, INSPECTION DEVICE, AND IMAGING METHOD

WIPO Patent Application WO/2023/100805

A1

An imaging device (11) comprises: two cameras (31, 32) that capture transmission images of an article (12) from opposite directions; a first light source (21) that emits light which is transmitted through the article (12) in a first direction (D1); and a second light source (22) that emits light which is transmitted through the article (12) in a second direction (D2). A first camera (31) captures a first image that is the transmission image of the article (12). A second camera (32) captures a second image that is the transmission image of the article (12). A first half mirror (41) reflects first transmitted light toward the first camera (31) with the second light source (22) off, and allows transmission of light heading toward the article (12) from the second light source (22). A second half mirror (42) reflects second transmitted light toward the second camera (32) with the first light source (21) off, and allows transmission of light heading toward the article (12) from the first light source (21).

WATANABE TOHRU (JP)
YOSHIDA YU (JP)
TOYOSHIMA KUNIMITSU (JP)

PCT/JP2022/043763

June 08, 2023

November 28, 2022

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KK N TECH (JP)
YAKULT HONSHA KK (JP)
TOHOSHOJI KK (JP)

H04N23/45; G01N21/84; G01N21/90; G03B11/00; G03B15/00; G03B15/02; G03B15/03; G03B15/05; G03B17/17; G03B19/07; H04N23/10; H04N23/54; H04N23/55; H04N23/56; H04N23/85

JP2020106504A	2020-07-09
JP2011089978A	2011-05-06
JP2001116700A	2001-04-27
JP2021145185A	2021-09-24

ONDA Makoto et al. (JP)

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