SplinActiv'
Contrôle des zones de vision par courbes splines
Evolux Eiris
Evolux Eiris progressive lenses are calculated using an innovative technique that allows for precise control of the vision zones and the progression zone. This is SplinActiv' technology.
SplinActiv' Technology
SplinActiv’ technology is based on “Splines” curves used for complex harmonious shapes. To implement them, they require anchor points and control points. Their variation is then calculated using cubic functions (polynomials).
Cette méthode de calcul permet dans le cas de verres progressifs,
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d’assurer des zones de vision homogènes, sans discontinuités
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to provide greater flexibility in the choice of corridors
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to better smooth the progression from VL to VP.
Benefits
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The viewing areas are enlarged and clear. The transition between the VL and VP is smooth.
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The wearer's comfort is improved and it is easier to adjust.
Présentation de la technologie SplinActiv'
Below is a simplified version of the calculation method using SplinActiv’ technology.
Calculation results
Presentation: Eiris flat lens Add +2.00D.
On the cylindrical aberration map, the large areas of distance and near vision are easily noticeable.
The vision zones have smooth, seamless transitions, offering great visual comfort.
Preview
Technical specifications
Features
| Progression corridor | 12, 13, 14, 15, 16, 17, 18, 19, 20mm |
|---|---|
| Variable inset |
0 à 5 mm |
| Minimum mounting height | 13 mm |
| Centering cross | 4 mm |
| Manufacturing range | -30.0 > +16.00 δ - Cyl: +10.0 |
| Prism | <= +25.0 δ |
| Addition | 0.50 à +6.50 δ |
Specific features
RetinaFitRetinaShiftIncrustationPrécalibrage Épaisseur spécialeBase spécialeDiamètre spécialLenticularisationDécentrementIndividualisation du couloirDistance verre-œilAngle de galbe
Angle pantoscopique