NEN-EN-ISO 7944
Optics and optical instruments - Reference wavelengths
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 August 1998 |
| Status: | active |
| Page Count: | 12 |
| ICS Code (Optics and optical measurements in general): | 17.180.01 |
scope:
Specifies two reference wavelenghts to be used for the characterization of optical materials, optical systems and instruments, as well as opthalmic lenses. It defines the associated principal refractive indices and principal dispersions, as well as the Abbe numbers with regard to these reference wavelength and principal dispersions.
Document History
NEN-EN-ISO 7944
August 1, 1998
Optics and optical instruments - Reference wavelengths
Specifies two reference wavelenghts to be used for the characterization of optical materials, optical systems and instruments, as well as opthalmic lenses. It defines the associated principal...
July 1, 1997
Optics and optical instruments - Reference wavelengths
Specifies two reference wavelenghts to be used for the characterization of optical materials, optical systems and instruments, as well as opthalmic lenses. It defines the associated principal...