Container inspection device and blister packaging machine

Abstract

A container inspection device includes: an irradiator that irradiates, with light, containers transferred in an arrangement of multiple lines; an imaging sensor that images the radiated light; optical path conversion sheets that convert an optical path of the light; an imaging optical system that forms an image of the light along the converted optical path onto the imaging sensor; and a hardware processor that identifies whether the side walls include a defect based on image data obtained from the light imaged on the imaging sensor. The optical path conversion sheets are laid across the multiple lines. The optical path conversion sheets respectively correspond to the side wall areas, and each of the optical path conversion sheets converts the optical path of the light reflected from or transmitted through a corresponding one of the side wall areas into an optical path along an optical axis of the imaging optical system.