System and method for stress detection in a molded container

Details System and method for stress detection in a molded container System and method for stress detection in a molded container

1997-06-04

1999-07-20

Kim, Robert

Optics: measuring and testing

Inspection of flaws or impurities

Containers or enclosures

356390, 356370, G01N 2100

Patent

active

059262680

ABSTRACT:
System and method for inspecting a container for defects. A first polarizer positioned between a light source and the container polarizes light provided by the light source for illuminating the container. A second polarizer positioned between the container and a camera polarizes the light transmitted through the container to the camera. As positioned, the axes of transmission of the first and second polarizers are non-parallel relative to each other. An image processor processes an image generated by the camera as a function of an optical characteristic of the image to detect defects in the container.

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