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Optical Plastic Lens SEMI-FINISHED LENS

 1.499 Spheric Lens D75mm/80mm

 Material : 1.499 Index Resin (Ne=1.499, Abbe value=58, Specific gravity=1.32)
CONVEX SURFACE CONCAVE
SURFACE
C.T
(mm)
E.T
(mm)
Dia
(mm)
Nominal
Curve
True
Curve
Sag
(sagitta:40mm)
Sag
(sagitta:50mm)
Radius
Radius
1.499 1.530
  0.50 0.42 0.45 0.17 0.27 1,175.06 90.50 9.8 16.9 75/80
  1.00 1.28 1.36 0.51 0.80 390.91 9.4 15.3
  2.00 2.05 2.18 0.82 1.28 242.83 10.5 15.3
  3.00 3.24 3.44 1.29 2.02 154.18 11 14.1
  4.00 4.30 4.57 1.71 2.69 115.98 10.0 11.5
  5.00 5.25 5.57 2.09 3.29 95.10 11.9 12.2
  6.00 6.24 6.63 2.49 3.93 80.00 80.00 8.6 8.9
  7.00 7.25 7.70 2.90 4.60 68.80 10.2 8.9
  8.00 8.05 8.56 3.23 5.13 61.95 68.90 10.0 8.7
Center Thickness:0.5mm Edge Thickness:0.5mm Diameter Ranges:0.5mm