Products
S/F 1.56 Photochromic Progressive Lens

PHOTOCHROMIC S/F PROGRESSIVE LENS (Short Corridor)
Material refractive index=1.545               Tooling index=1.530
Diameter Nominal  T.C. Rad Back  E.T. C.T. MRP Seg  Fitting Cross Sag Add Rx Range     Recommended
Curve Curve Dec. Inset above MRP Range
72mm 125 1.37 386.86 5.60 12.00 7.00 3 3 2 0.81 1.00-3.50 -4.25D/-8.00D
72mm 325 3.40 155.88 5.60 10.00 8.00 3 3 2 2.02 1.00-3.50 -4.00D/-0.75D
72mm 550 5.75 92.17 5.60 8.00 8.00 3 3 2 3.46 1.00-3.50 -0.50D/+2.50D
72mm 750 7.82 67.77 5.60 7.00 10.00 3 3 2 4.78 1.00-3.50 +2.75D/+6.00D
                         
PHOTOCHROMIC  S/F PROGRESSIVE LENS (Regular Corridor)
Material refractive index=1.545               Tooling index=1.530
Diameter Nominal  T.C. Rad Back  E.T. C.T. MRP Seg  Fitting Cross Sag Add Rx Range     Recommended
Curve Curve Dec. Inset above MRP Range
72mm 200 2.64 200.80 5.60 12.00 8.00 3 3 2 1.56 1.00-3.50 -3.25D/-7.50D
72mm 400 4.20 126.40 5.60 11.00 9.50 3 3 2 2.50 1.00-3.50 -1.00D/-3.00D
72mm 600 6.30 83.98 5.60 9.00 10.00 3 3 2 3.80 1.00-3.50 -0.75D/+2.25D
72mm 800 7.82 67.77 5.60 8.00 11.00 3 3 2 4.78 1.00-3.50 +2.50D/+5.50D
Note: T.C.: True Curve;   Rad: Radius(mm);  E.T.: Edge Thickness(mm);  C.T.: Center Thickness(mm);  Sag: Sag at 50(mm)