| PolySA”
Polycarbonate
(High Index 1.586) Blank Diameter: 76mm |
| Nominal Curve | True Curve | Radius mm | Actual SAG at 50mm | Nominal Concave | Center Thickness | Edge Thickness |
| 0.50 | 0.47 | 1127.660 | 0.28 | 5.20 | 10.00 | 17.10 |
| 2.00 | 2.00 | 265.000 | 1.18 | 4.00 | 11.50 | 14.50 |
| 4.25 | 4.23 | 125.296 | 2.52 | 4.80 | 8.80 | 10.20 |
| 6.00 | 5.97 | 88.777 | 3.59 | 6.00 | 8.60 | 8.80 |
| 8.50 | 8.51 | 62.280 | 5.24 | 8.00 | 12.50 | 11.50 |
| 10.00 | 10.03 | 52.841 | 6.29 | 12.60 | 11.20 | 12.40 |