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