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1.499 S/F FLAT TOP BIFOCALS 70/28mm (EXTRA THICK)
| Diameter |
Nominal Curve |
T.C |
Radius |
Back Curve |
E.T. |
C.T. |
SAG |
Seg Inset |
Seg Drop |
Add range |
RX Range Recommended |
| 70/28 |
50 |
0.54 |
981.48 |
2 |
20 |
17.7 |
0.32 |
5 |
5 |
0.50 to 4.00 |
-10.25D TO -14.00D |
| 70/28mm |
200 |
2.02 |
262.38 |
5.70 |
16.00 |
11.60 |
1.19 |
5 |
5 |
0.50-6.00 |
2.00D/-5.00D |
| 70/28 |
400 |
3.92 |
135.2 |
5.6 |
15.6 |
13.5 |
2.33 |
5 |
5 |
1.00 to 3.50 |
-1.00D TO -3.00D |
| 70/28 |
600 |
6.06 |
87.46 |
5.6 |
15.6 |
16 |
3.65 |
5 |
5 |
1.00 to 3.50 |
+2.00D TO -2.00D |
| 70/28 |
800 |
8.05 |
65384 |
5.6 |
15.6 |
18.5 |
4.93 |
5 |
5 |
1.00 to 3.50 |
+2.00D TO +5.00D |
1.499 S/F SINGLE VISION 75MM (EXTRA THICK)
| Diameter |
Nominal Curve |
T.C |
Radius |
Back Curve |
E.T. |
C.T. |
SAG |
RX Range Recommended |
| 75 |
Plano |
0.00 |
0.00 |
5.60 |
19.00 |
11.50 |
0.00 |
-8.00D TO -12.00D |
| 75 |
200 |
1.92 |
276.04 |
5.60 |
17.00 |
12.40 |
1.13 |
-5.25D TO -8.00D |
| 75 |
400 |
3.93 |
134.86 |
5.60 |
17.00 |
15.00 |
2.34 |
-2.25D TO -5.00D |
| 75 |
600 |
6.05 |
87.60 |
5.60 |
17.00 |
18.00 |
3.64 |
+2.00D TO -2.00D |
| 75 |
800 |
8.09 |
65.51 |
5.60 |
17.00 |
21.50 |
4.96 |
+6.00D TO +10.00D |
| 75mm |
1000 |
10.04 |
52.79 |
5.60 |
10.00 |
17.50 |
6.30 |
+6.00D/+10.00D |
