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prSSH EN ISO 7944:2024

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

General information

40.60     May 7, 2025

50.99    Oct 28, 2025

DPS

DPS/KT 316

European Norm

11.040.70     17.180.01  

Scope

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.

Life cycle

PREVIOUSLY

PUBLISHED
SSH EN ISO 7944:1998/AC:2009

PUBLISHED
SSH EN ISO 7944:1998

NOW

IN_DEVELOPMENT
prSSH EN ISO 7944:2024
40.60 Close of voting
May 7, 2025

Related project

Adopted from EN ISO 7944:2024 IDENTICAL

Adopted from ISO 7944:2024 IDENTICAL