The shutter 69 is located in a light passageway from the light bulb 61 to the projection lens 68, preferably in the vicinity of {HEAD ~ a focus} of {TAIL ~ the projection lens} 68 
of
The shutter 69 is located in a light passageway from the light bulb 61 to the projection lens 68 , preferably in the vicinity of { HEAD ~ a focus } of { TAIL ~ the projection lens } 68
OTH OTH OTH OTH OTH OTH OTH OTH 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