lens.rad

# a lens

void dielectric lc
0 0 5  0.8 0.8 0.8  1.5 0

lc mesh thelens
1 lens.msh
0 0

void antimatter antiglass
1 lc 0 0

antiglass cylinder anticyl
0 0 7  0 0 -0.2  0 0 0.2  0.4

antiglass ring anticaptop
0 0 8  0 0 0.2  0 0 1  0 0.4

antiglass ring anticapbottom
0 0 8  0 0 -0.2  0 0 -1  0 0.4