Specification of Semi-Finished Single Vision Lenses

 
Semi-Finished Single Vision         Index = 1.56

Description Ring 40mm Diameter(mm) Rear Curve C.T. E.T.
0.50B 0.149 70.0 -5.00 9.6 16.0
1.00B 0.451 70.0 -5.00 9.4 14.0
2.00B 0.824 70.0 -5.00 9.7 13.7
3.00B 1.217 70.0 -5.00 10.7 13.0
4.00B 1.554 70.0 -6.00 8.7 11.2
6.00B 2.779 70.0 -6.00 8.4 9.0
8.00B 3.118 70.0 -6.00 9.2 6.8
10.00B 4.030 65.0 -6.00 12.7 7.5
12.00B 4.967 65.0 -6.00 14.7 6.0
14.00B 5.768 65.0 -4.00 20.0 6.0
14.00B 5.768 65.0 -4.00 18.0 6.0
 

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