According to a specific embodiment of the invention, {HEAD ~ an incandescent lamp}, or {TAIL ~ bulb}, is used to create an incoherent light beam which is projected into a light entering region of the beam directing member 
According to a specific embodiment of the invention , { HEAD ~ an incandescent lamp } , or { TAIL ~ bulb } , is used to create an incoherent light beam which is projected into a light entering region of the beam directing member
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH