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Optical Plastic Lens SEMI-FINISHED LENS

1.60 Progressive (12mm) Lens

Meterial : 1.60 Index Resin (Ne=1.597, Abbe=40, Density=1.34)
Add Power : +1.00 to +3.50 in 0.25D steps
Corrldor Length : 12mm

CONVEX SURFACE Convave
Curve
C.T
(mm)
E.T
(mm)
Dia
(mm)
Nominal
Curve
True
Curve
Sag
Sagitta (40mm)
Sag
Sagitta (50mm)
Radius Radius
1.597 1.530
1.50 1.58 1.40 0.53 0.82 378.571 83.00 8.0 14.3 75
3.50 3.83 3.40 1.28 2.00 155.882 8.4 12.0
5.75 6.42 5.70 2.14 3.37 92.982 8.8 8.7
7.75 8.73 7.75 2.92 4.62 68.387 12.9 9.8
Center Thickness:0.5mm Edge Thickness:0.5mm Diameter Ranges:0.5mm

Add Prism(Down):
ADD 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50
Prism 0.35 0.44 0.53 0.61 0.70 0.79 0.88 0.96 1.05 1.14 1.23

Prescription Range:
Nominal Base Curve Recommended Diopter in Base Cylinder
1.50 -13.50 to -3.50 0-6.00
3.50 -3.25 to +1.25 0-6.00
5.75 +1.50 to +4.75 0-6.00
7.75 +5.00 to +8.00 0-6.00