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SSH EN ISO 7944:2024

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

Oct 22, 2025

General information

60.60     Oct 22, 2025

95.99   

DPS

DPS/KT 316

European Norm

11.040.70     17.180.01  

English  

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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

WITHDRAWN
SSH EN ISO 7944:1998/AC:2009

WITHDRAWN
SSH EN ISO 7944:1998

NOW

PUBLISHED
SSH EN ISO 7944:2024
60.60 Standard published
Oct 22, 2025

Related project

Adopted from EN ISO 7944:2024 IDENTICAL

Adopted from ISO 7944:2024 IDENTICAL