Upper Segment Lenses
UniZone US28 Xact™
UniZone Xact has fully optimized optics in all directions. Individual calculations of apherization and inset based on prescription and frame parameters. A large number of variations of design and corridor lengths.
| Addition | Engraving | Minimum Fitting Height | Default parameters |
| Index 1.5 | Sign: U | 14, 16 or 18 mm | CVD: 13 mm |
| Prog: 0.75-4.0 | Symbol: Δ | FFT: 4° | |
| Top: 0.75-4.0 | PT: 6° | ||
| Index 1.6 | |||
| Prog 0.75-4.0 | |||
| Top: 1.0-3.0 |
UniZone US28 Pro™
UniZone Pro is an advanced calculated lens without possibility to include the frame parameters. Inset individually calculated based on prescription. Available in four different corridor lengths.
| Addition | Engraving | Minimum Fitting Height |
| Index 1.5 | Sign: U | 14, 16 or 18 mm |
| Prog: 0.75-4.0 | Symbol: ▷ | |
| Top: 0.75-4.0 | ||
| Index 1.6 | ||
| Prog 0.75-4.0 | ||
| Top: 1.0-3.0 |
UniZone US28 Easy
UniZone Easy is a standard fee form progressive lens with a good balance between distance and near.
| Addition | Engraving | Minimum Fitting Height |
| Index 1.5 | Sign: U | 14, 16 or 18 mm |
| Prog: 0.75-4.0 | Symbol: ▽ | |
| Top: 0.75-4.0 | ||
| Addition 1.6 | ||
| Prog 0.75-4.0 | ||
| Top: 1.0-3.0 |
Upper Segment Lenses
DD28 Xact™
DD28 Xact has fully optimized optics in all directions. Including calculations based on frame parameters. Upper Segment can be ordered with same addition as the lower segment or with around 62%.
| Addition | Engraving | Parameters |
| 0.75-4.0 | Sign: S | To be specified |
| See table below for exact range | Symbol: Δ |
DD28 Pro™
DD28 Pro is a back surface atoric design with an individualized aspherization in both meridians for all powers. Optimized calculations for all base curves. Upper Segment can be ordered with same addition as the lower segment or with around 62%.
| Addition | Engravings | Parameters |
| 0.75-4.0 | Sign: S | CVD: 13mm |
| See table below for exact range | Symbol: ▷ | FFT: 4° |
| PT: 6° |
DD28 Easy
DD28 Easy has a spherical design. Upper Segment can be ordered with same addition as the lower segment or with around 62%.
| Addition |
| 0.75-4.0 |
| See table below for exact range |
Note that the DD28 lens is symmetric so it can be fitted upside-down to have the lower addition in the lower segment if desired. See the table below for the different combinations of additions.
