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