Adaptive progressive using DuraCore AI calculations, with personalisation, pre-calibration and variable inset options.
Application and design rationale
Computational optimisation in Adaptive design
DuraCore AI is mentioned for this product. Addition and near-corridor ranges are verifiable specifications; the technology name alone does not define field size.
| Design identifier | Description |
|---|---|
| Category | Advanced adaptive progressive lens |
| Design type | Adaptive |
Technical specifications
Orderable options depend on prescription, material and current product availability.
| Technical parameter | Value / status |
|---|---|
| Product classMarket Segment | High-end progressive |
| Design typeType | Adaptive |
| Available materialsAllowed Materials | All materials |
| Pre-calibrationPrecalibration | Yes |
| PersonalisationPersonalization | Yes |
| Prism reference pointPrism Reference Point (PRP) | Geometrical centre |
| Distance reference pointDistance Reference Point (DRP) | +10 mm |
| Fitting reference pointLayout Reference Point (LRP) | +4 mm |
| InsetInset | 0–4 mm (DuraFit Inset) |
| Near reference pointNear Reference Point (NRP) | 12–18 mm |
| Addition rangeAddition Range | +0.75 to +4.50 D |
| PRP decentration range | 0 to 12 mm |
| Specified indices and options | Refractive indices 1.50, 1.53, 1.60, 1.67 and 1.74 In clear, Transitions and polarised options; confirm final availability when ordering. |
Design mechanism and features
Soft distribution of peripheral aberrations
In SuperMax, DuraMesh manages unwanted-astigmatism distribution and smooths changes around the corridor. The table profile is Adaptive; a soft transition does not imply zero peripheral errors.
DuraCore AI and DuraTrace calculations
The text introduces DuraCore AI for design optimisation and DuraTrace for ray/wavefront calculations, both aimed at managing optical errors.
Role of DuraAperture
DuraAperture is described with reference to effective pupil aperture in distance, intermediate and near zones, aligning surface calculations with different conditions of lens use.
Technologies in this design
- DuraTrace
- Ray-tracing calculations and optical-aberration optimisation in surface design.
- DuraCore AI
- The computational engine introduced for surface-design optimisation.
- DuraMesh
- Managing surface geometry and changes in peripheral aberrations.
- DuraAperture
- Considering the effective pupil aperture when calculating viewing zones.
- DuraFit Inset
- Near-zone inset adjustment; the model's range appears in its specification table.
Measure before manufacture
Required parameters vary by design and must be recorded by a professional.
- Monocular PD
- Each eye's pupillary distance is recorded separately to align horizontal lens positioning with the visual axis.
- Fitting Height
- Fitting height is recorded on the adjusted frame in the natural position of wear; the required near zone must also fit within the frame.
- BVD
- Distance from the rear lens surface to the corneal apex; relevant to power-compensation calculations in personalised models.
- Pantoscopic Angle
- The frame's vertical tilt in the position of wear must be measured; example values are not substitutes for measurement.
- Wrap Angle
- The horizontal curvature of the frame relative to the face, describing lens positioning.
- Box A
- Horizontal width of the frame opening in the boxing system.
- Box B
- Vertical height of the frame opening in the boxing system.
- DBL
- Distance between the two lens boxes at the frame bridge.
- ED
- Effective diameter: twice the greatest distance from the boxing centre to the lens-shape edge, used for blank selection and edging calculations.
Design-specific inputs
- Corridor Length / NRP Selection: defines a 12–18 mm range according to frame height and head/eye viewing ergonomics.
- DuraFit Inset: adjusts horizontal near-vision displacement within 0–4 mm based on reading distance and distance/addition power.
- Working Distance: the patient's standard near distance used to calibrate the power-increase gradient and pupil aperture.
Monocular pupillary distance
For aligning the lens centre with each eye's visual axis.
Fitting height
Vertical pupil position relative to the frame in the position of wear.
Back vertex distance
One of the inputs describing the actual position of wear.
These are basic fitting parameters; additional inputs and the level of personalisation are specified for each model.
Complete parameter guide ↖View the original catalogue page
In this family
UltraMax Progressive
Progressive design adapted to viewing behaviour
Specifications and details
