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Optical Plastic Lens SEMI-FINISHED LENS

1.60 Progressive (15mm) Lens

Material : 1.60 Index Resin (Ne=1.597, Abbe=40, Specific gravity=1.30)
Add Power : +1.00 to +3.50 in 0.25D steps.
Corridor Length : 15mm

CONVEX SURFACE Concave
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
2.25 2.19 1.94 0.73 1.14 273.195 83.00 8.0 13.9 75
4.25 5.14 4.56 1.71 2.69 116.228 8.4 10.5
5.50 6.52 5.79 2.18 3.42 91.537 8.8 9.3
7.50 8.78 7.79 2.94 4.65 68.000 12.9 10.1
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
2.25 -13.00 to -3.50 0-6.00
4.25 -3.25 to +1.25 0-6.00
5.50 +1.50 to +4.75 0-6.00
7.50 +5.00 to +7.00 0-6.00