 |
1.499 SEMI-FINISHED BIFOCAL LENSES |
| 1.499 SEMI-FINISHED BIFOCAL LENSES |
Diameter
(mm) |
Nominal
Curve |
Ture
Curve |
Radius
(mm) |
Back
Curve |
Edge
T.(mm) |
Center
T.(mm) |
Sag at
50mm |
Seg
Inset |
Seg
Drop |
ADD
Range |
RX Range
Recommended |
| Flat Top |
| 70/28 |
200 |
2.02 |
262.38 |
5.60 |
16.00 |
11.60 |
1.19 |
5 |
5 |
0.50-4.00 |
-2.00D/-5.00D |
| 70/28 |
400 |
3.92 |
135.20 |
5.60 |
9.00 |
6.80 |
2.33 |
5 |
5 |
0.50-4.00 |
-1.00D/-3.00D |
| 70/28 |
600 |
6.06 |
87.46 |
5.60 |
9.00 |
9.50 |
3.65 |
5 |
5 |
0.50-4.00 |
+2.00D/-2.00D |
| 70/28 |
800 |
8.05 |
65.84 |
5.60 |
7.00 |
10.00 |
4.93 |
5 |
5 |
0.50-4.00 |
+2.00D/+5.00D |
| Curve Top |
| 70/28 |
200 |
2.02 |
262.38 |
5.60 |
16.00 |
11.60 |
1.19 |
5 |
5 |
0.50-4.00 |
-2.00D/-5.00D |
| 70/28 |
400 |
3.92 |
135.20 |
5.60 |
9.00 |
6.80 |
2.33 |
5 |
5 |
0.50-4.00 |
-1.00D/-3.00D |
| 70/28 |
600 |
6.06 |
87.46 |
5.60 |
9.00 |
9.50 |
3.65 |
5 |
5 |
0.50-4.00 |
+2.00D/-2.00D |
| 70/28 |
800 |
8.05 |
65.84 |
5.60 |
7.00 |
10.00 |
4.93 |
5 |
5 |
0.50-4.00 |
+2.00D/+5.00D |
| Round Top |
| 70/28ˇ˘70/24 |
200 |
1.98 |
267.68 |
5.60 |
16.00 |
11.60 |
1.17 |
0 |
6 |
0.75-4.00 |
-2.00D/-5.00D |
| 70/28ˇ˘70/24 |
400 |
3.99 |
132.83 |
5.60 |
9.00 |
6.80 |
2.37 |
0 |
6 |
0.75-4.00 |
-1.00D/-3.00D |
| 70/28ˇ˘70/24 |
600 |
6.06 |
87.46 |
5.60 |
9.00 |
9.50 |
3.65 |
5 |
5 |
0.75-4.00 |
+2.00D/-2.00D |
| 70/28ˇ˘70/24 |
800 |
8.09 |
65.51 |
5.60 |
7.00 |
10.00 |
4.96 |
0 |
6 |
0.75-4.00 |
+2.00D/+5.00D |
| Blended Top |
| 70/28 |
200 |
2.06 |
256.76 |
5.60 |
11.00 |
6.00 |
1.22 |
0 |
5 |
1.00-3.50 |
-2.00D/-5.00D |
| 70/28 |
400 |
3.97 |
133.60 |
5.60 |
9.00 |
7.00 |
2.36 |
0 |
5 |
1.00-3.50 |
-1.00D/-3.00D |
| 70/28 |
600 |
6.11 |
86.74 |
5.60 |
9.00 |
9.50 |
3.68 |
0 |
5 |
1.00-3.50 |
+2.00D/-2.00D |
| 70/28 |
800 |
8.09 |
65.48 |
5.60 |
7.00 |
10.00 |
4.96 |
0 |
5 |
1.00-3.50 |
+2.00D/+5.00D |
|
