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Surface Inspection

Surface Inspection

Card Surface Scratch Inspection

Card Surface Scratch Inspection

Original Image

Result Image

Illuminator: OPT-FL212230-W

Using the back light to lean the card surface, and lens is on the right 

direction of reflection, if the surface is good enough, the reflection is 

very strong like above picture, if the scratch area is not even and the 

reflection is week, so the area is dark like above picture.