Automatic machine vision foil print inspection on container lids
Innovative, easy to train, foil print inspection on circular and square, clear and opaque cosmetic container lids...
Lights are available in a large range of sizes, often the lights need to be considerably larger than the object they are illuminating to ensure that the light is coming from a similar distance from all directions rather than being too close around the outer edges. These lights are often best applied close to the object as if you move too high you get no shadow-free benefit (a diffuse area light would have a similar effect). Also due to the highly diffuse nature of these lights getting them close to the object retains as much brightness in the image as possible.