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- 1.499 S/F Flat Top Bifocal Lens
- 1.56 S/F Flat Top Bifocal Lens
- 1.60MR-8 S/F Flat Top Bifocal Lens
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| 1.499 S/F Flat Top Bifocal Lens | |||||||||||
| Material refractive index=1.499 | |||||||||||
| Diameter | Nominal Curve |
True Curve N=1.50 |
Radius | Back Curve | CT | ET | Sag at 50mm | Seg Inset | Seg Drop | ADD Range | RX Range |
| 70/28mm | 200 | 1.91 | 261.50 | 5.58 | 11.60 | 16.40 | 1.20 | 5 | 5 | 0.75-4.00 | -2.00D/-5.00D |
| 70/28mm | 400 | 3.73 | 133.75 | 5.58 | 6.80 | 9.15 | 2.36 | 5 | 5 | 0.75-4.00 | -1.00D/-3.00D |
| 70/28mm | 600 | 5.73 | 87.25 | 5.58 | 9.50 | 9.25 | 3.66 | 5 | 5 | 0.75-4.00 | +2.00D/-2.00D |
| 70/28mm | 800 | 7.58 | 65.80 | 5.58 | 10.00 | 7.20 | 4.93 | 5 | 5 | 0.75-4.00 | +2.00D/+5.00D |
| 1.499 S/F Round Top Bifocal Lens | |||||||||||
| Material refractive index=1.499 | |||||||||||
| Diameter | Nominal Curve |
True Curve N=1.50 |
Radius | Back Curve | CT | ET | Sag at 50mm | Seg Inset | Seg Drop | ADD Range | RX Range |
| 70/28mm | 200 | 1.91 | 261.50 | 5.58 | 6.50 | 11.30 | 1.20 | 0 | 5 | 1.00 -3.50 | -2.00D/-5.00D |
| 70/28mm | 400 | 3.73 | 133.75 | 5.58 | 7.00 | 9.40 | 2.36 | 0 | 5 | 1.00-3.50 | -1.00D/-3.00D |
| 70/28mm | 600 | 5.73 | 87.25 | 5.58 | 8.80 | 8.60 | 3.66 | 0 | 5 | 1.00-3.50 | +2.00D/-2.00D |
| 70/28mm | 800 | 7.58 | 65.80 | 5.58 | 9.50 | 6.60 | 4.93 | 0 | 5 | 1.00-3.50 | +2.00D/+5.00D |
| 1.499 S/F Round Top Bifocal Lens | |||||||||||
| Tooling index=1.530 | |||||||||||
| Diameter | Nominal Curve |
True Curve | Radius | Back Curve | CT | ET | Sag | Seg Inset | Seg Drop | ADD Range | RX Range |
| 70/24mm | 50 | 0.44 | 1204.55 | 5.70 | 16.00 | 10.00 | 0.26 | 0 | 6 | 0.75-4.00 | -5.25D/-10.00D |
| 70/24mm | 200 | 1.98 | 267.68 | 5.70 | 16.00 | 11.60 | 1.17 | 0 | 6 | 0.75-4.00 | -2.00D/-5.00D |
| 70/24mm | 400 | 3.94 | 134.52 | 5.70 | 9.00 | 6.80 | 2.34 | 0 | 6 | 0.75-4.00 | -1.00D/-3.00D |
| 70/24mm | 600 | 6.03 | 87.89 | 5.70 | 9.00 | 9.50 | 3.63 | 0 | 6 | 0.75-4.00 | +2.00D/-2.00D |
| 70/24mm | 800 | 8.09 | 65.51 | 5.70 | 7.00 | 10.00 | 4.96 | 0 | 6 | 0.75-4.00 | +2.00D/+5.00D |
| 70/24mm | 1000 | 10.06 | 52.68 | 5.70 | 7.00 | 13.00 | 6.31 | 0 | 6 | 0.75-4.00 | +5.25D/+7.00D |
| 1.499 S/F Blended Top Bifocal Lens | |||||||||||
| Material refractive index=1.499 | |||||||||||
| Diameter | Nominal Curve |
True Curve N=1.50 |
Radius | Back Curve | CT | ET | Sag at 50mm | Seg Inset | Seg Drop | ADD Range | RX Range |
| 70/28mm | 200 | 1.91 | 261.50 | 5.58 | 6.50 | 11.30 | 1.20 | 0 | 5 | 1.00 -3.50 | -2.00D/-5.00D |
| 70/28mm | 400 | 3.73 | 133.75 | 5.58 | 7.00 | 9.40 | 2.36 | 0 | 5 | 1.00-3.50 | -1.00D/-3.00D |
| 70/28mm | 600 | 5.73 | 87.25 | 5.58 | 8.80 | 8.60 | 3.66 | 0 | 5 | 1.00-3.50 | +2.00D/-2.00D |
| 70/28mm | 800 | 7.58 | 65.80 | 5.58 | 9.50 | 6.60 | 4.93 | 0 | 5 | 1.00-3.50 | +2.00D/+5.00D |
| 1.499 S/F Curve Top Bifocal Lens | |||||||||||
| Material refractive index=1.499 | |||||||||||
| Diameter | Nominal Curve |
True Curve N=1.50 |
Radius | Back Curve | CT | ET | Sag at 50mm | Seg Inset | Seg Drop | ADD Range | RX Range |
| 70/28mm | 200.00 | 1.91 | 262.38 | 6.28 | 6.00 | 10.00 | 1.19 | 0 | 5 | 1.00 -3.50 | -2.00D/-5.00D |
| 70/28mm | 400.00 | 3.70 | 135.20 | 5.30 | 6.00 | 8.50 | 2.35 | 0 | 5 | 1.00-3.50 | -1.00D/-3.00D |
| 70/28mm | 600.00 | 5.72 | 87.46 | 5.30 | 6.50 | 7.50 | 3.13 | 0 | 5 | 1.00-3.50 | +1.00D/-2.00D |
| 70/28mm | 800.00 | 7.48 | 66.84 | 5.30 | 6.00 | 6.50 | 3.65 | 0 | 5 | 1.00-3.50 | +2.00D/-2.00D |
| 70/28mm | 1000.00 | 9.52 | 52.53 | 5.30 | 8.50 | 8.00 | 4.92 | 0 | 5 | 1.00-3.50 | +2.00D/+5.00D |
| 1.56 S/F Flat Top Bifocal Lens | |||||||||||
| Material refractive index=1.553 | |||||||||||
| Diameter | Nominal Curve |
True Curve N=1.50 |
Radius | Back Curve | CT | ET | Sag at 50mm | Seg Inset | Seg Drop | ADD Range | RX Range |
| 70/28mm | 200 | 2.45 | 225.84 | 6.28 | 6.00 | 10.00 | 1.38 | 5 | 5 | 1.00 -3.50 | -2.00D/-5.00D |
| 70/28mm | 400 | 4.16 | 133.10 | 5.30 | 6.00 | 8.50 | 2.35 | 5 | 5 | 1.00-3.50 | -1.00D/-3.00D |
| 70/28mm | 500 | 5.22 | 105.94 | 5.30 | 6.50 | 7.50 | 3.13 | 5 | 5 | 1.00-3.50 | +1.00D/-2.00D |
| 70/28mm | 600 | 6.29 | 87.90 | 5.30 | 6.00 | 6.50 | 3.65 | 5 | 5 | 1.00-3.50 | +2.00D/-2.00D |
| 70/28mm | 800 | 8.32 | 66.52 | 5.30 | 8.50 | 8.00 | 4.92 | 5 | 5 | 1.00-3.50 | +2.00D/+5.00D |
| 1.56 S/F Round Top Bifocal Lens | |||||||||||
| Material refractive index=1.553 | |||||||||||
| Diameter | Nominal Curve |
True Curve N=1.553 |
Radius | Back Curve | CT | ET | Sag at 50mm | Seg Inset | Seg Drop | ADD Range | RX Range |
| 70/28mm | 200.00 | 2.10 | 262.84 | 6.28 | 6.00 | 10.00 | 1.19 | 0 | 5 | 1.00 -3.50 | -2.00D/-5.00D |
| 70/28mm | 400.00 | 4.15 | 133.20 | 5.30 | 6.00 | 8.50 | 2.35 | 0 | 5 | 1.00-3.50 | -1.00D/-3.00D |
| 70/28mm | 500.00 | 5.22 | 105.94 | 5.30 | 6.50 | 7.50 | 3.13 | 0 | 5 | 1.00-3.50 | +1.00D/-2.00D |
| 70/28mm | 600.00 | 6.29 | 87.94 | 5.30 | 6.00 | 6.50 | 3.65 | 0 | 5 | 1.00-3.50 | +2.00D/-2.00D |
| 70/28mm | 800.00 | 8.46 | 65.44 | 5.30 | 8.50 | 8.00 | 4.92 | 0 | 5 | 1.00-3.50 | +2.00D/+5.00D |
| 1.56 S/F Blended Top Bifocal Lens | |||||||||||
| Material refractive index=1.553 | |||||||||||
| Diameter | Nominal Curve |
True Curve N=1.553 |
Radius | Back Curve | CT | ET | Sag at 50mm | Seg Inset | Seg Drop | ADD Range | RX Range |
| 70/28mm | 200.00 | 2.10 | 262.84 | 6.28 | 6.00 | 10.00 | 1.19 | 0 | 5 | 1.00 -3.50 | -2.00D/-5.00D |
| 70/28mm | 400.00 | 4.15 | 133.20 | 5.30 | 6.00 | 8.50 | 2.35 | 0 | 5 | 1.00-3.50 | -1.00D/-3.00D |
| 70/28mm | 500.00 | 5.22 | 105.94 | 5.30 | 6.50 | 7.50 | 3.13 | 0 | 5 | 1.00-3.50 | +1.00D/-2.00D |
| 70/28mm | 600.00 | 6.29 | 87.94 | 5.30 | 6.00 | 6.50 | 3.65 | 0 | 5 | 1.00-3.50 | +2.00D/-2.00D |
| 70/28mm | 800.00 | 8.46 | 65.44 | 5.30 | 8.50 | 8.00 | 4.92 | 0 | 5 | 1.00-3.50 | +2.00D/+5.00D |
| 1.60MR-8 S/F Flat Top Bifocal Lens | |||||||||||
| Material refractive index=1.597 | |||||||||||
| Diameter | Nominal Curve |
True Curve N=1.50 |
Radius | Back Curve | CT | ET | Sag at 50mm | Seg Inset | Seg Drop | ADD Range | RX Range |
| 70/28mm | 50 | 0.55 | 1088.20 | 7.30 | 6.70 | 14.00 | 0.31 | 5 | 5 | 1.00 -3.50 | -2.00D/-5.00D |
| 70/28mm | 200 | 2.28 | 261.02 | 7.30 | 5.70 | 11.00 | 1.20 | 5 | 5 | 1.00-3.50 | -1.00D/-3.00D |
| 70/28mm | 400 | 4.41 | 135.29 | 7.30 | 6.00 | 9.00 | 2.33 | 5 | 5 | 1.00-3.50 | +1.00D/-2.00D |
| 70/28mm | 600 | 6.80 | 87.75 | 6.20 | 7.20 | 7.00 | 3.64 | 5 | 5 | 1.00-3.50 | +2.00D/-2.00D |
| 70/28mm | 800 | 9.05 | 65.92 | 6.20 | 10.00 | 7.00 | 4.92 | 5 | 5 | 1.00-3.50 | +2.00D/+5.00D |
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