The attachment of color marks that are then evaluated with a color or contrast sensor is a proven method for identifying objects in industrial production. Even objects with differing shapes and surface properties can be very reliably detected in this way.

Color sensors

• Sorting packaging or checking different labels
• Detecting colors and color ranges on packaging and film

Contrast sensors

• Detecting printing marks with the subtlest variations in grey values in the printing and packaging industry
• Checking labels and stickers in the printing industry

Luminescence sensors

• Detecting labels on glass bottles
• Detecting invisible printing marks for object alignment