Prescription 1.61 Freeform Varifocal Lens Manufacturer

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Product Overview

Description


Prescription 1.61 Freeform Varifocal Lens Manufacturer

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Refractive index

1.61

Abble value33
Specific gravity1.34
Transmission>97%
CoatingHMC
More details 

 Hard and AR coating for both lens surface

 Hydrophobic coating

Radiation protection



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1) Differences.

 

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Modern progressive lenses, on the other hand, have a smooth and consistent gradient between differing lens powers. In this sense, they can also be called “multifocal” or “varifocal” lenses, because they offer all of the advantages of the old bi- or trifocal lenses without the inconveniences and cosmetic drawbacks. 

 

2) "No-line bifocals"

Progressive lenses, sometimes called "no-line bifocals," eliminate the visible lines of traditional bifocals and trifocals and hide the fact that you need reading glasses.

With progressive lenses, no one has to know whether you're wearing glasses just for fashion — or because your arms have "grown too short" for you to see up close.

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0.015 s.