Patent ID: 6914672

Claim:
An inspecting device for optically detecting foreign matter in a liquid deposited in translucent containers, said inspection device comprising: a turn controllable inspection table having mount sections around a rotation axis on which said containers are mounted; and illuminating means illuminating an entire side face of a container on said mount sections from sideways, the container being transported along an annular path in association with turns of said inspection table; wherein: (i) said inspection table comprises a two-stage structure forming a step between a circumferential portion where the mount sections are formed and an inside portion thereof, wherein the inside portion is lower than the circumferential portion; (ii) said illuminating means provides a flat flight emitting a substantially uniform planar light of parallel rays from a light emitting face, and having a structure emitting a perpendicular beam of light to each side face of said container from plural side directions of said container by a plurality of said flat lights so that the entire side face of said container is illuminated; and (iii) said plurality of said flat lights are positioned on the inside portion of the inspection table, and a bottom end portion of the light emitting face of said plurality of flat lights is positioned lower than a bottom portion of said container on said mount sections so that a blind spot is eliminated in the illuminated region of the bottom portion of said container.