ISO 7944:1998
Optics and optical instruments - Reference wavelengths

Standard No.

ISO 7944:1998

Release Date

1998

Published By

International Organization for Standardization (ISO)

Status

Be replaced

Replace By

ISO 7944:1998/Cor 1:2009

Latest

ISO 7944:1998/Cor 1:2009

Scope

This International Standard specifies two reference wavelengths to be used for the characterization of optical materials, optical systems and instruments, as well as 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.

ISO 7944:1998 history

• 2009 ISO 7944:1998/Cor 1:2009 Optics and optical instruments - Reference wavelengths; Technical Corrigendum 1
• 1998 ISO 7944:1998 Optics and optical instruments - Reference wavelengths
• 1984 ISO 7944:1984 Optics and optical instruments; Reference wavelengths