SR EN ISO 7944:2025

Optics and photonics - Reference wavelengths (ISO 7944:2024)

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.

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General information

Status : Valid
Approval date : 4/30/2025
Number of pages : 14
ICS : 11.040.70 Ophthalmic equipment,17.180.01 Optics and optical measurements in general
Technical Committee : 230 - Optics and optical instruments

Relations with other standards:

Replaces SR EN ISO 7944:2003
Replaces SR EN ISO 7944:2003/AC:2010