Method and device for inspecting sidewall of bottle

Details Method and device for inspecting sidewall of bottle Method and device for inspecting sidewall of bottle

G - Physics

01

N

340/124.6

G01N 21/90 (2006.01)

Patent

CA 1304140

ABSTRACT OF THE DISCLOSURE A method and a device for inspecting the sidewall of a bottle is disclosed. In the method and device for inspecting the sidewall of the bottle, an elongate illumination portion is moved to irradiate illumination light to the sidewall of the bottle to be inspected, an elongate observation portion moved synchronously with the elongate illumination portion to observe the illumination light transmitted through the sidewall of the bottle, and based on an image of the transmitted light, the presence of defects is judged. light blocking defects and refractional defects on the sidewall of the bottle can be detected with high precision.

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