The first array of lenses and second array of lenses together form a flys eye integrator, and the first array of lenses and second array of lenses comprise {HEAD ~ lenses} which have {TAIL ~ a diameter} selected from the range of 5 μm 50 μm, and a radius of curvature selected from the range of 25 μm 2500 μm 
have
The first array of lenses and second array of lenses together form a flys eye integrator , and the first array of lenses and second array of lenses comprise { HEAD ~ lenses } which have { TAIL ~ a diameter } selected from the range of 5 μm 50 μm , and a radius of curvature selected from the range of 25 μm 2500 μm
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 OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL TAIL 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 OTH OTH