Inspection is carried out by direct viewong while changing the angle of the illuminated surface of the object.
Inspection of unpermeable materials is possible, as well as permeable materials such as glass.
Transmissive Object (Small Area)
Transmissive Object (Large-Area)
Non-transmissive Object
Can be used to check for clumps of contamination mixed into coatings.
Can be used to check for dents in coating irregularities.