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