The shutter 69 prohibits or cuts off a portion of light rays converged in the vicinity of {HEAD ~ the focus} of {TAIL ~ the projection lens} 68 which is unnecessary for the formation of a light distribution pattern 
of
The shutter 69 prohibits or cuts off a portion of light rays converged in the vicinity of { HEAD ~ the focus } of { TAIL ~ the projection lens } 68 which is unnecessary for the formation of a light distribution pattern
OTH OTH OTH OTH 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 TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH