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S/F Photochromic Flat Top Bifocal Lens

PHOTOCHROMIC S/F FLAT TOP BIFOCAL LENS
Material refractive index=1.545               Tooling index=1.530
Diameter Nominal  T.C. Rad Back  E.T. C.T. Sag Seg  Seg Add Rx Range     Recommended
Curve Curve Inset Drop Range
72/28mm 50 0.54 976.72 5.60 12.00 6.50 0.32 5 5 1.00-3.50 -5.25D/-10.00D
72/28mm 200 2.06 256.76 5.60 10.00 5.00 1.22 5 5 1.00-3.50 -2.00D/-5.00D
72/28mm 400 3.97 133.60 5.60 9.00 7.50 2.36 5 5 1.00-3.50 -1.00D/-3.00D
72/28mm 600 6.11 86.74 5.60 7.00 6.80 3.68 5 5 1.00-3.50 +2.00D/-2.00D
72/28mm 800 8.09 65.48 5.60 7.00 9.50 4.96 5 5 1.00-3.50 +2.00D/+5.00D
70/28mm 1000 10.11 52.42 5.60 7.00 13.50 6.35 5 5 1.00-3.50 +5.25D/+7.00D