Unbreakable polymer for glass replacement in lenses and optical applications

For comfort, design and safety reasons, materials used for lenses need to exhibit high optical clarity, low density and outstanding toughness.High fracture resistance is particularly required for specific frameless models due to the necessary holes being drilled through lenses. These holes are generally weak areas concentrating stress and initiating cracks. Superior toughness is also beneficial for children and sport models for safety reasons.

For glass replacement, PMMA has been used for a long time however, toughness is sometimes insufficient to meet new design requirements.

The overriding advantage of correction lenses in Makrolon® is their high fracture strength, which means they offer maximum safety. They are thus particularly suitable for children as well as for sportsmen and sportswomen. Lenses in Makrolon® also only weigh half as much as lenses in glass,making then particularly comfortable to wear.

Compared with standard grades of Makrolon®, the LQ grades offer even greater purity and light transmission. They also incorporate UV-protection which filters out most of the UV radiation harmful to the eye (up to 380 nm).