NORMSERVIS s.r.o.

ČSN EN ISO 8980-3 (195105)

Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods

NORM herausgegeben am 1.1.2023

Englisch -
Gedruckt (17.40 EUR)

Informationen über die Norm:

Bezeichnung normen: ČSN EN ISO 8980-3
Zeichen: 195105
Katalog-Nummer: 516032
Ausgabedatum normen: 1.1.2023
Zahl der Seiten: 48
Gewicht ca.: 144 g (0.32 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN

Die Annotation des Normtextes ČSN EN ISO 8980-3 (195105):

This document specifies requirements for the transmittance properties of uncut and unmounted finished spectacle lenses, including attenuation of solar radiation.
This document is not applicable to
- spectacle lenses having specific transmittance or absorption characteristics prescribed for medical reasons,
- products to which specific personal protective equipment transmittance standards apply, and
- products intended for direct observation of the sun, such as for solar-eclipse viewing.
NOTE 1 - By reference to ISO 21987 and ISO 14889, this document also applies to lenses mounted in spectacles.
NOTE 2 - Optical and geometric requirements are given for uncut finished spectacle lenses in ISO 8980-1 and ISO 8980-2, and for mounted lenses, in ISO 21987