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