Process, lighting equipment and system for the optical detection of moving objects

A process for the optical detection of objects moved at a conveying speed, the method comprising:

• illuminating an object with one of:
• a sequence of light pulses from at least one pulsed light source , the light pulses having different intensities and/or different pulse durations, or
• a sequence of light pulses from at least one pulsed light source, and a secondary light from a secondary light source, the secondary light source inducing an optically detectable secondary effect in objects;
• taking images of the object during each light pulse with a monochromatic optical area sensor comprising a plurality of sensor lines;
• reading out and temporarily storing lines of each image, wherein the read-out lines have a line pitch relative to each other, wherein by the line pitch or a multiple of the line pitch a projection of the object onto the area sensor moves along between consecutive light pulses, the line pitch or a multiple of the line pitch, respectively, being proportional to a distance for which the object moves along at a conveying speed between consecutive light pulses;
• sequentially combining lines from images taken under illumination by the light pulses to form combination lines, with the lines combined with each other having the line pitch or a multiple of the line pitch, respectively, relative to each other;
• and
• assembling the combination lines into a combinatory overall picture