Understanding our progressive lenses
To order progressive lenses correctly, it is important to understand where these characteristic points are located.
The diagram opposite illustrates these different points.
The values shown are general values and may vary depending on the geometry.
Our glasses are like you, they are French :)
and are all manufactured in our factory in Milly la Forêt.
Understanding our manufacturing options
Special thickness
When ordering, it is possible to modify the desired thicknesses at the center or edge, while respecting manufacturing limits.
Special Base
The base of the lens can be modified to best fit the curve of the frame.
Decentering
X and Y offsets can be added to the default offset to best adjust the lens to the frame.
Special diameter
The diameter of the glass can be ordered outside the standard range (for example, a diameter of 62 mm).
Precalibration
The lens can be pre-calibrated, meaning that its diameter will be calculated to match the shape of the frame as closely as possible. The optical center will also be adjusted to minimize the diameter.
Systematic precalculation
The glass will be pre-calibrated automatically without any specific request.
Customization of the hallway
The choice of progression corridor can be changed if necessary.
Automatic corridor
The corridor is calculated automatically based on the pupil height and the shape of the frame.
Pantoscopic angle
Glass customization data: Angle formed by the frame face and the vertical.
Curvature angle or bend angle
Glass individualization data: Angle between the tangent to the bridge and one of the circles on the face (measured horizontally).
Eye relief
Glass individualization data: Distance between the eye and the back surface of the glass.
Lenticularization
Glass thinning technology that significantly reduces glass thickness by reducing the field of vision (negative lenses).
Max Technology
Technology that increases the magnification of a lens by 3.0%, 4.5%, 6%, or 7.5% (subject to feasibility).