{HEAD ~ Optical directing members} receive the optical signals from the various regions and direct the light to respective ones of {TAIL ~ the cameras} 
{ HEAD ~ Optical directing members } receive the optical signals from the various regions and direct the light to respective ones of { TAIL ~ the cameras }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL