Mineral bifocal lenses
Design features:
Avalable materials:
Index: 1,523Teza: 2,54 g/cm3ABBE: 58,3UV: 330 nm
Standard mineral lens.
Index: 1,523Teza: 2,41 g/cm3ABBE: 56,2UV: 340 nm
Photosensitive mineral lens*. Available in gray and brown.
(*degree of darkening depends on light and temperature conditions)