Optics and photonics - Reference wavelengths
STANDARD published on 1.5.2025
Designation standards: ČSN EN ISO 7944
Classification mark: 195012
Catalog number: 521094
Publication date standards: 1.5.2025
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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