Telecentric schemes with optimised triplets

******IMPORTANT******* f/# = 1/x where x = doubled (full) angle (actually tg alfa)

vn7	f/#=51; No FP
vn8	f/#=74.5; No FP
vn9	f/#=99; No FP
vn10	f/100 for FP, f/50 final focus; 6 triplets 5 mirrors 
vn11	working
vn12	a copy of vn9 with f/# 119.4; TTM = 55 mm.	
vn13	a copy of vn12 with smaller TTM = 27 mm. f/# = 120; No FP.
vn14	a copy of vn13 with FP.
vn15	a second copy of vn13 with FP; Final f/# = 108
vn16	a copy of vn15; two last lenses are singlets.Final f/#=72; 6lens+6mirrors
cn1	collim beam design with triplets
cn2	collim beam design with singlets
sing6103	a singlet behind the DM for 6103
sing15600	the same for 15600 A.
d6103	doublets and singlet FP.