Title:
異物検査装置
Document Type and Number:
Japanese Patent JP6996736
Kind Code:
B2
Abstract:
The present invention pertains to a foreign object inspection apparatus for inspecting whether there is a foreign object in a translucent container by imaging the bottom part of the translucent container such as a glass bottle. Light emitted from an illumination device (3) is divided into first light (L1) that is reflected on the inner surface (1b) of the bottom part (1a) of a translucent container (1) and second light (L2) that advances within the bottom part (1a) and is then reflected on the outer surface (1c) of the bottom part (1a). An imaging device (5) is disposed at a position that allows the first light (L1) to be received and that causes an angle α, at which the second light (L2) reflected on the outer surface (1c) is incident on the inner surface (1b), to be larger than a critical angle.
Inventors:
Hiroyuki Totsuka
Application Number:
JP2017178792A
Publication Date:
January 17, 2022
Filing Date:
September 19, 2017
Export Citation:
Assignee:
Kirin Techno System Co., Ltd.
International Classes:
G01N21/90
Domestic Patent References:
| JP2114158A | ||||
| JP2016217866A |
Foreign References:
| WO2017117566A1 |
Attorney, Agent or Firm:
Tetsuya Hirosawa
Yutaro Watanabe
Yutaro Watanabe