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CEN

FprEN ISO 7944

(Main)

Optics and photonics - Reference wavelengths (ISO/FDIS 7944:2024)

Optics and photonics - Reference wavelengths (ISO/FDIS 7944:2024)

Optik und Photonik - Bezugswellenlängen (ISO/FDIS 7944:2024)

Dieses Dokument legt Bezugswellenlängen fest, die für die Charakterisierung von optischen Werkstoffen zu verwenden sind, optischen Systemen und Instrumenten sowie ophthalmischen Linsen. Es definiert die zugehörigen Hauptbrechzahlen und die Hauptdispersionen sowie die Abbe-Zahlen bezogen auf diese Bezugswellenlängen und die Hauptdispersionen.

Optique et photonique - Longueurs d'onde de référence (ISO/FDIS 7944:2024)

La présente Norme internationale définit deux longueurs d'onde de référence qui doivent être utilisées pour la caractérisation des matériaux optiques, des systèmes et des instruments d'optique, ainsi que des verres ophtalmiques. Elle définit les indices de réfraction principaux et les dispersions principales associées, ainsi que les nombres d'Abbe par rapport à ces longueurs d'onde de référence et aux dispersions principales.

Optika in fotonska tehnologija - Referenčne valovne dolžine (ISO/FDIS 7944:2024)

General Information

Status
Not Published
Publication Date
02-Feb-2025
ICS
11.040.70 - Ophthalmic equipment
17.180.01 - Optics and optical measurements in general
Technical Committee
CEN/TC 170 - Ophthalmic optics
Drafting Committee
CEN/TC 170 - Ophthalmic optics
Current Stage
5020 - Submission to Vote - Formal Approval
Start Date
05-Sep-2024
Completion Date
05-Sep-2024
Ref Project
kSIST FprEN ISO 7944:2024 - Optics and photonics - Reference wavelengths (ISO/FDIS 7944:2024)

Relations

Revises
EN ISO 7944:1998 - Optics and optical instruments - Reference wavelengths (ISO 7944:1998)
Effective Date
19-Jan-2023
Revises
EN ISO 7944:1998/AC:2009 - Optics and optical instruments - Reference wavelengths (ISO 7944:1998/Cor 1:2009)
Effective Date
18-Jan-2023

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SLOVENSKI STANDARD
oSIST prEN ISO 7944:2024
01-januar-2024
Nadomešča:
SIST EN ISO 7944:2000
SIST EN ISO 7944:2000/AC:2010
Optika in optični instrumenti - Referenčne valovne dolžine (ISO/DIS 7944:2023)
Optics and optical instruments - Reference wavelengths (ISO/DIS 7944:2023)
Optik und optische Instrumente - Bezugswellenlängen (ISO/DIS 7944:2023)
Optique et instruments d'optique - Longueurs d'onde de référence (ISO/DIS 7944:2023)
Ta slovenski standard je istoveten z: prEN ISO 7944
ICS:
11.040.70 Oftalmološka oprema Ophthalmic equipment
17.180.01 Optika in optična merjenja na Optics and optical
splošno measurements in general
oSIST prEN ISO 7944:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN ISO 7944:2024
oSIST prEN ISO 7944:2024
DRAFT INTERNATIONAL STANDARD
ISO/DIS 7944
ISO/TC 172 Secretariat: DIN
Voting begins on: Voting terminates on:
2023-10-23 2024-01-15
Optics and optical instruments — Reference wavelengths
Optique et instruments d'optique — Longueurs d'onde de référence
ICS: 17.180.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 7944:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

oSIST prEN ISO 7944:2024
ISO/DIS 7944:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 7944
ISO/TC 172 Secretariat: DIN
Voting begins on: Voting terminates on:

Optics and optical instruments — Reference wavelengths
Optique et instruments d'optique — Longueurs d'onde de référence
ICS: 17.180.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: +41 22 749 01 11
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 7944:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

oSIST prEN ISO 7944:2024
ISO/DIS 7944:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Reference wavelengths, principal dispersions and Abbe numbers .1
4.1 General . 1
4.2 Mercury e-line 546,07 nm . 1
4.3 Helium d-line 587,56 nm . 2
4.4 Helium d-line 587,56 nm . 2
Bibliography . 4
iii
oSIST prEN ISO 7944:2024
ISO/DIS 7944:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to devel
...

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