Here you can find some interesting information about such optical parameters as wavelength, refractive index, transmittance, etc. and the role they play in the field of spectacle lenses.
The solution - a good appearance and good vision with one and the same lens - came in the form of the asphere and the atorus. In 1986 Carl Zeiss was the first manufacturer - and still is the only manufacturer - to offer a single vision lens with an atoroidal front surface: the Hypal lens
Here you can learn more about the general production of spectacle lenses, up to and including the special manufacturing techniques required for bifocal and progressive lenses. "From order placement to delivery" - here you can accompany your lens on its journey through Carl Zeiss.
Here you can read about the possibilities available for coating lenses:
from a single antireflection coating to high-tech coating, from surface protection for plastic lenses Clean Coat and lens tints and colours up to your wishes.