DIN EN ISO 7944:1998
Optics and optical instruments - Reference wavelengths (ISO 7944:1998); German version EN ISO 7944:1998
- Standard No.
- DIN EN ISO 7944:1998
- Release Date
- 1998
- Published By
- German Institute for Standardization
- Status
- Replace By
- DIN EN ISO 7944:1998-07
- Latest
- DIN EN ISO 7944:2023-12
- Replace
- DIN EN ISO 7944:1996
- Scope
- The document specifies two reference wavelength 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 the principal dispersions.#,,#
DIN EN ISO 7944:1998 history
- 2023 DIN EN ISO 7944:2023-12 Optics and optical instruments - Reference wavelengths (ISO/DIS 7944:2023); German and English version prEN ISO 7944:2023 / Note: Date of issue 2023-10-27*Intended as replacement for DIN EN ISO 7944 (1998-07).
- 1998 DIN EN ISO 7944:1998-07 Optics and optical instruments - Reference wavelengths (ISO 7944:1998); German version EN ISO 7944:1998
- 1998 DIN EN ISO 7944:1998 Optics and optical instruments - Reference wavelengths (ISO 7944:1998); German version EN ISO 7944:1998
- 0000 DIN EN ISO 7944:1996
