The optical inspection of each component instantaneously occurs by recording the eight optical images, on {HEAD ~ two frames}, {TAIL ~ one frame} being recorded by each of the cameras 
The optical inspection of each component instantaneously occurs by recording the eight optical images , on { HEAD ~ two frames } , { TAIL ~ one frame } being recorded by each of the cameras
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH