EN ISO 7944:1998
(Main)Optics and optical instruments - Reference wavelengths (ISO 7944:1998)
Optics and optical instruments - Reference wavelengths (ISO 7944:1998)
Migrated from Progress Sheet (TC Comment) (2000-07-10): The enquiry is negative. ++ TC 170 res.4/1996: 2nd ENQ. decided.(Stuttgart meeting on 96-11-11/12).
Optik und optische Instrumente - Bezugswellenlängen (ISO 7944:1998)
Diese Internationale Norm legt zwei Bezugswellenlängen für die Charakterisierung von optischen Werkstoffen, optischen Systemen und Instrumenten sowie ophthalmischen Linsen fest und definiert die zugehörigen Hauptbrechzahlen und die Hauptdispersionen, wie auch die Abbe-Zahlen bezogen auf diese Bezugswellenlängen und die Hauptdispersionen.
Optique et instruments d'optique - Longueurs d'onde de référence (ISO 7944:1998)
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 optični instrumenti – Referenčne valovne dolžine (ISO 7944:1998)
General Information
- Status
- Withdrawn
- Publication Date
- 31-May-1998
- Withdrawal Date
- 20-Jan-2026
- Technical Committee
- CEN/TC 170 - Ophthalmic optics
- Drafting Committee
- CEN/TC 170 - Ophthalmic optics
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 04-Dec-2024
- Completion Date
- 21-Jan-2026
Relations
- Effective Date
- 19-Jan-2023
- Corrected By
EN ISO 7944:1998/AC:2009 - Optics and optical instruments - Reference wavelengths (ISO 7944:1998/Cor 1:2009) - Effective Date
- 11-Jul-2009
Frequently Asked Questions
EN ISO 7944:1998 is a standard published by the European Committee for Standardization (CEN). Its full title is "Optics and optical instruments - Reference wavelengths (ISO 7944:1998)". This standard covers: Migrated from Progress Sheet (TC Comment) (2000-07-10): The enquiry is negative. ++ TC 170 res.4/1996: 2nd ENQ. decided.(Stuttgart meeting on 96-11-11/12).
Migrated from Progress Sheet (TC Comment) (2000-07-10): The enquiry is negative. ++ TC 170 res.4/1996: 2nd ENQ. decided.(Stuttgart meeting on 96-11-11/12).
EN ISO 7944:1998 is classified under the following ICS (International Classification for Standards) categories: 17.180.01 - Optics and optical measurements in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 7944:1998 has the following relationships with other standards: It is inter standard links to EN ISO 7944:2024, EN ISO 7944:1998/AC:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN ISO 7944:1998 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2000
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Optics and optical instruments - Reference wavelengths (ISO 7944:1998)
Optik und optische Instrumente - Bezugswellenlängen (ISO 7944:1998)
Optique et instruments d'optique - Longueurs d'onde de référence (ISO 7944:1998)
Ta slovenski standard je istoveten z: EN ISO 7944:1998
ICS:
11.040.70 Oftalmološka oprema Ophthalmic equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
INTERNATIONAL ISO
STANDARD 7944
Second edition
1998-06-01
Optics and optical instruments —
Reference wavelengths
Optique et instruments d'optique — Longueurs d'onde de référence
A
Reference number
ISO 7944:1998(E)
ISO 7944:1998(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.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
International Standard ISO 7944 was prepared by Technical Committee ISO/TC 172, Optics and optical
instruments.
This second edition cancels and replaces the first edition (ISO 7944:1984), which has been technically revised.
© ISO 1998
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet iso@iso.ch
Printed in Switzerland
ii
INTERNATIONAL STANDARD © ISO ISO 7944:1998(E)
Optics and optical inst
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