60.60 Standard published Dec 4, 2024
CEN
CEN/TC 170 Ophthalmic optics
European Norm
11.040.70 Ophthalmic equipment | 17.180.01 Optics and optical measurements in general
This document specifies reference wavelengths to be used for the characterization of optical materials, optical systems and instruments, and ophthalmic lenses. It defines the associated principal refractive indices and principal dispersions, as well as the Abbe numbers with regard to these reference wavelengths and principal dispersions.
PUBLISHED
EN ISO 7944:2024
60.60
Standard published
Dec 4, 2024