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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
Actual
Curve
Sag
Sagitta (40mm)
Sag
Sagitta (50mm)
Radius Radius
1.50 1.58 0.53 0.82 378.571 83.00 8.0 14.3 75
3.50 3.83 1.28 2.00 155.882 8.4 12.0
5.75 6.42 2.14 3.37 92.982 8.8 8.7
7.75 8.73 2.92 4.62 68.387 12.9 9.8

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