BS EN ISO 7944:1998
Optics and optical instruments - Reference wavelengths

Standard No.

BS EN ISO 7944:1998

Release Date

1998

Published By

British Standards Institution (BSI)

Status

Be replaced

Replace By

BS EN ISO 7944:1998(1999)

Latest

BS EN ISO 7944:1998(1999)

Replace

96/540151 DC:1996 BS 7017:1988

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.

BS EN ISO 7944:1998 history

• 0000 BS EN ISO 7944:1998(1999)
• 1998 BS EN ISO 7944:1998 Optics and optical instruments - Reference wavelengths