DPS
Drejtoria e Përgjithshme e Standardizimit
Phone: +355 4 222 62 55
E-mail: info@dps.gov.al
Address: Address: "Reshit Collaku" Str., (nearby ILDKPKI, VI floor), Po.Box 98, Tiranë - Albania
Main menu

ISO/TR 20772:2018

Ophthalmic optics — Spectacle lenses — Short wavelength visible solar radiation and the eye

Sep 25, 2018

General information

60.60     Sep 25, 2018

ISO

ISO/TC 172/SC 7

Technical Report

11.040.70  

English   French  

Buying

Published

Language in which you want to receive the document.

Scope

This document describes visible solar radiation with wavelengths close to the UV range, its transmission to, within and the effects on the human eye. The wavelengths concerned are from 380 nm to 500 nm, covering the colours of violet, indigo and blue — often referred to as the "blue wavelengths".
It also explains the filtering effects and measurement of spectacle lenses and sunglasses, thereby providing background information to understand the transmittance requirements related to filtering effects of lenses and filters in the available spectacle lens and sunglass standards.
This document does not address the issues of protection from artificial sources of radiation.
This document is intended to be of benefit to any future interest in ISO standardization related to transmission of solar radiation with wavelengths near to and greater than 380 nm.
The Bibliography provides a source of relevant useful references.

Life cycle

NOW

PUBLISHED
ISO/TR 20772:2018
60.60 Standard published
Sep 25, 2018

Preview

Only informative sections of projects are publicly available. To view the full content, you will need to members of the committee. If you are a member, please log in to your account by clicking on the "Log in" button.

Login