home > products > ophthalmic lens >semi-finished LENS
Optical Plastic Lens SEMI-FINISHED LENS

 1.56 Aspheric Lens

 Material : 1.56 Index Resin (Ne=1.549, Abbe value=38, Specific gravity=1.28)
CONVEX SURFACE CONCAVE
SURFACE
C.T
(mm)
E.T
(mm)
Dia
(mm)
Nominal
Curve
True
Curve
Sag
(sagitta:40mm)
Sag
(sagitta:50mm)
Radius Radius
1.549  
  0.50 0.50   0.18 0.28 1,108.70 90.50 8.5 15.0 70
  1.00 0.91   0.33 0.52 604.73 8.4 14.2
  2.00 1.93   0.70 1.09 284.56 8.5 13.4
  3.00 2.92   1.06 1.66 187.71 8.5 12.3
  4.00 4.53   1.64 2.57 121.27 8.5 11.1
  5.00 5.60   2.03 3.19 98.04 9.6 11.0
  6.00 6.39   2.32 3.65 85.85 9.4 9.4
  7.00 6.78   2.46 3.88 81.03 10.0 9.7
  8.00 7.78   2.83 4.47 70.59 11.0 9.8
  9.00 8.98   3.28 5.21 61.12 13.1 9.8
10.00 10.06   3.69 5.88 54.55 13.5 8.5
12.00 11.69   4.32 6.95 46.96 90.22 15.0 8.1 65
Center Thickness:0.5mm Edge Thickness:0.5mm Diameter Ranges:0.5mm