SIST EN ISO 7944:2025 PDF
Optics and photonics - Reference wavelengths (ISO 7944:2024)
Optics and photonics - Reference wavelengths (ISO 7944:2024)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 11
- Дата публикации:
- 23 декабря 2024 г.
- Издание:
- ISO 7944:2024
- ICS:
- 11.040.70
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.
Abstract
Overview
EN () - titled - defines standardized , associated , , and for characterizing optical materials, optical systems and instruments, and . Endorsed by CEN in December 2024 and published as EN , this third edition supersedes the 1998 version and updates wavelength tables and precision aligned to authoritative sources.
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