Halogen lamp for IR luminescence. Coaxial lighting for examining retro-reflective images.
Coaxial lighting reveals retro-reflective security patterns.
Side lighting highlights embossed stamps. Full Colour imaging reveals UV induced visible luminescence. The high powered halogen lamps for generating infrared luminescence from inks incorporates a new nine element filter selection that enables the operator to progressively suppress background luminescence. This ensures that differences in ink luminescence with possible evidential value are not masked by the background. New lamp filters suppress paper luminescence.