The light deflection device scans the deflected light over {HEAD ~ an entire area} of {TAIL ~ the picture information display element} and an area outside of an effective display area of the picture information display element 
of
The light deflection device scans the deflected light over { HEAD ~ an entire area } of { TAIL ~ the picture information display element } and an area outside of an effective display area of the picture information display element
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH