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