nanoHDVision – technology of individual lens manufacturing

In Alcom we manufacture nanoHDVision individual

  • Magic Alpha progressive lenses,
  • iSV unifocal lenses and
  • Sport/SportLux curved lenses.
Individual parameters calculated for lens surface

State-of-the-art nanoHDVision technology for calculating surfaces is based on an innovative model object-lens-eye. Personalised design ensures top optical characteristics and optimal vision in all directions.

Because the calculation is completely binocular, Magic Alpha VIP, iSV and Sport lenses have optional parameters:

  • lens position according to the eye
  • Panto pantoscopic tilt
  • horizontal tilt ZTILT or Wrap
  • eyepiece
  • vertex BVD
  • base FBASE

Now the user can choose glasses that suit him/her best. Lenses can be horizontally and vertically decentered.

Possible fitting heights for Magic Alpha lenses are 14, 15, 16, 17, 18, 19 and 20mm.

For precise and quick measurement of individual parameters we recommend devices such as Cyclops. More on this device.

Different variations are available, depending on the user’s lifestyle:

  • Normal with balanced vision zones
    • Outdoor with expanded far vision zone, suitable for drivers, athletes, outdoor use. Near vision zone still allows for comfortable viewing at reading distances.

 

  • Indoor with expanded near vision zone for mostly indoor use.

 

nanoHDVision is a unique method that:

  • accounts for all variables that can affect vision quality
  • calculation is so precise that final results are more exact than in other models
  • lenses demonstrate highest optical quality and state-of-the-art technology
  • lenses manufactured with this technology are top-quality personalised product
Adaptation warranty

Magic Alpha VIP, Magic Alpha, Magic Beta, Magic Gama, Reader, Acomoda, iSV and Sport/SportLux lenses are all 100% checked with Dual Lens Mapper device for surface analysis, which ensures top optical lens quality.
More …

  • accounts for all variables that can affect vision quality
  • calculation is so precise that final results are more exact than in other models
  • lenses demonstrate highest optical quality and state-of-the-art technology
  • lenses manufactured with this technology are top-quality personalised product

 

During calculations and manufacturing of individual lenses with nanoHDVision system optical errors are compensated.

More on compensation and measurements of such lenses …

 

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SURFACE CALCULATION

1. 3D modeling of the eye-lens system

 

3D model of the eye-lens system

With all user parameters a 3D model object-lens-eye is created.

Parameters used for calculation:
– distance between the eyes and the lens (Vertex distance),
– center position according to the pupil,
– pantoscopic angle,
– horizontal angle,
– eye axis rotation.

2. Calculation of viewing axis in the objectlens system


Rays converging on the retina guarantee vision quality. Consequently, correct calculation of viewing axis is important.
   

 

Simulation of viewing axis

 

3. Developing the object-lens system for simulating different viewing distances

Due to different purposes of progressive lens use we have different object-lens systems.

When we construct an object-lens system intended for calculating lenses for normal use, the balance needs to be struck between near, mid-range and far vision zones.

Equal sizes of vision zones

When we construct an object-lens system intended for calculating lenses intended primarily for indoor use, more emphasis is given to near and mid-range vision zones.

 

Emphasized near and mid-range vision zones

 

When we construct an object-lens system intended for calculating lenses intended primarily for outdoor use, more emphasis is given to far and mid-range vision zone.

Emphasized far and mid-range vision zones

4. Diopter calculation for every direction and every distance.

Once the object-space and eye-lens systems are set, as well as the viewing direction grid, diopter calculation begins. This calculation is made for each point on the lens and requires a set up of the optical system and environment. nanoHDVision Technology calculates the diopter for each point on the lens surface and enables the manufacturing of personalised progressive lenses. In this way the user gets a suitable diopter for every viewing distance.

5. Optimization of the system, which serves as a basis for the user when getting used to lenses

This is the last step in calculating free-form progressive lenses MAGic Alpha VIP, Sport/Lux and iSV. Other than from the user’s data, the diopter for each point of the lens surface depends on coefficients that define free-form surface. This last process looks for a set of surface parameters that meet the required rules of progressive optics to the best possible degree. The process takes a few seconds and optimizes the original progressive surface. The surface optimization process accounts for all the user’s data and calculates unique progressive surface that is completely personalised to the requirements of each individual.
This satisfies two main aims:
– reduction of unwanted astigmatism,
– optimization of diopters.

Technology of corrective and protective lenses

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