Flat Top
Having both far and near vision areas.
The far-near lens is composed of far and near vision areas
| Product | Segment Width (Curve Top) | Index | Abbe | Gravity |
|---|---|---|---|---|
| 1.60 B-25 | 25mm | 1.6 | 42 | 1.30g/c.c. |
| 1.60 B-28 | 28mm | 1.6 | 42 | 1.30g/c.c. |
| 1.50 B-25 | 25mm | 1.5 | 59 | 1.32g/c.c. |
| 1.50 B-28 | 28mm | 1.5 | 59 | 1.32g/c.c. |