1.74 Spheric Lens |
Material : 1.74 Index Resin (Ne=1.738, Abbe value=32, Specific gravity=1.47) |
CONVEX SURFACE |
CONCAVE SURFACE |
C.T (mm) |
E.T (mm) |
Dia (mm) |
Nominal
Curve |
True
Curve |
Sag (sagitta:40mm) |
Sag
(sagitta:50mm) |
Radius |
Radius |
1.738 |
1.530 |
0.50 |
0.52 |
0.37 |
0.141 |
0.22 |
1,419.23 |
55.53 |
7.7 |
19.5 |
70 |
1.50 |
1.44 |
1.03 |
0.389 |
0.61 |
512.50 |
56.55 |
7.5 |
18.7 |
2.25 |
2.18 |
1.57 |
0.589 |
0.92 |
338.53 |
64.62 |
7.0 |
15.5 |
3.50 |
3.43 |
2.46 |
0.925 |
1.45 |
215.16 |
76.80 |
5.9 |
12.5 |
75 |
5.00 |
4.93 |
3.54 |
1.329 |
2.08 |
149.70 |
110.48 |
6.3 |
8.0 |
6.75 |
6.66 |
4.78 |
1.795 |
2.82 |
110.81 |
95.23 |
6.0 |
7.3 |
8.50 |
8.51 |
6.11 |
2.296 |
3.61 |
86.76 |
85.52 |
7.0 |
7.2 |
70 |
10.25 |
10.18 |
7.31 |
2.754 |
4.35 |
72.50 |
76.80 |
7.5 |
7.0 |
11.50 |
11.59 |
8.32 |
3.144 |
4.99 |
63.68 |
79.10 |
8.5 |
6.6 |
65 |
12.50 |
12.46 |
8.95 |
3.388 |
5.38 |
59.23 |
9.5 |
6.9 |