Korea Optical Lens manufacturer, Optical Plastic Lens, Progressive Lens, Spheric Lens, Aspheric Lens |Clex
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Optical Plastic Lens SEMI-FINISHED LENS

1.56 Progressive(18mm) Lens
Material : 1.56 Index Resin (Ne=1.549, Abbe=38, Density=1.28)
Add Power : +1.00 to +3.50 in 0.25D steps.
Corridor Length : 18mm

CONVEX SURFACE Concave
Curve 		C.T
(mm) 		E.T
(mm) 		Dia
(mm)
Nominal
Curve		 True
Curve 		Sag
(sagitta : 40 §® ) 		Sag
(sagitta : 50 §® ) 		Radius
 Radius
1.549 1.530
2.25 2.11 2.03 0.76 1.19 260.73 83.00 10.2 14.7 75
4.25 4.83 4.66 1.75 2.75 113.70 10.3 12.0
5.50 6.10 5.89 2.21 3.48 90.00 10.8 9.6
7.50 8.17 7.89 2.98 4.71 67.21 13.6 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 0.66 0.83 0.99 1.16 1.32 1.49 1.65 1.82 1.98 2.15 2.31

Prescription Range :
Nominal Base Curve Recommended Diopter in Base Cylinder
2.50 -14.50 to -4.25 0-6.00
4.25 -4.00 to +1.75 0-6.00
5.50 +2.00 to +4.50 0-6.00
7.50 +4.75 to +7.50 0-6.00

Korea Optical Lens manufacturer, Optical Plastic Lens, Progressive Lens, Spheric Lens, Aspheric Lens |Clex

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