ISO 9342-1:2023

Optics and optical instruments — Test lenses for calibration of focimeters — Part 1: Reference lenses for focimeters used for measuring spectacle lenses

Publication date: 7 korr 2023

General information

Current stage: 60.60 Effective date: 7 korr 2023

Originator: ISO

Owner: ISO/TC 172/SC 7

Type: International Standard

ICS: 11.040.70

Gjuha: anglisht frëngjisht

Buying

Statusi: Publikuar

PDF - 14 586 Lekë

Paper - 14 586 Lekë

CD - 14 586 Lekë

Language

Language in which you want to receive the document.

Scope

This document specifies requirements for reference lenses for the calibration and verification of focimeters that are used for the measurement of spectacle form lenses, e.g. those complying with ISO 8598-1. It also gives a method for the determination of the back vertex power of the reference lenses.
NOTE It is accepted that other reference lenses can also be used with powers within the given range, manufactured to the same standard of accuracy and form, but different back vertex powers. However, only lenses with integer nominal powers, as described in 4.1, can be used for the calibration of digitally-rounding focimeters.

Life cycle

PREVIOUSLY

Revises
ISO 9342-1:2005

NOW

PUBLISHED
ISO 9342-1:2023
60.60 Standard published
7 korr 2023

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.