EN 61920:2004
(Main)Infrared free air applications
Infrared free air applications
describes the classification of IR devices into groups and classes in order to identify and clarify problems caused by mutual interference. Mutual interference is caused by the increasing parallel application of different infrared (IR) systems.
Nichtleitungsgebundene Infrarot-Anwendungen
Applications infrarouge en mode non guidé
describes the classification of IR devices into groups and classes in order to identify and clarify problems caused by mutual interference. Mutual interference is caused by the increasing parallel application of different infrared (IR) systems.
Infrardeče brezžične aplikacije (IEC 61920:2004)
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Standards Content (Sample)
SLOVENSKI SIST EN 61920:2004
STANDARD
september 2004
Infrardeče brezžične aplikacije (IEC 61920:2004)
Infrared free air applications (IEC 61920:2004)
ICS 31.260 Referenčna številka
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
EUROPEAN STANDARD EN 61920
NORME EUROPÉENNE
EUROPÄISCHE NORM March 2004
ICS 31.260; 33.100 Supersedes EN 61920:1998
English version
Infrared free air applications
(IEC 61920:2004)
Applications infrarouge Nichtleitungsgebundene
en mode non guidé Infrarot-Anwendungen
(CEI 61920:2004) (IEC 61920:2004)
This European Standard was approved by CENELEC on 2004-03-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61920:2004 E
Foreword
The text of document 100/717/FDIS, future edition 2 of IEC 61920, prepared by IEC TC 100, Audio,
video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and
was approved by CENELEC as EN 61920 on 2004-03-01.
This European Standard supersedes EN 61920:1998.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2004-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-03-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61920:2004 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60825-1 NOTE Harmonized as EN 60825-1:1994 (not modified).
IEC 61603-1 NOTE Harmonized as EN 61603-1:1997 (not modified).
IEC 61603-2 NOTE Harmonized as EN 61603-2:1997 (not modified).
IEC 61603-3 NOTE Harmonized as EN 61603-3:1998 (not modified).
IEC 61603-6 NOTE Harmonized as EN 61603-6:2002 (not modified).
__________
- 3 - EN 61920:2004
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60050-713 1998 International Electrotechnical - -
Vocabulary
Part 713: Radiocommunications:
transmitters, receivers, networks and
operation
IEC 60050-845 1987 Chapter 845: Lighting - -
database
IEC 60417 Graphical symbols for use on - -
equipment
IEC 60747-5-1 1997 Discrete semiconductor devices and EN 60747-5-1 2001
integrated circuits
Part 5-1: Optoelectronic devices –
General
ISO/IEC 7498-1 1994 Information technology - Open systems EN ISO/IEC 7498-1 1995
interconnection - Basic reference model
Part 1: The basic model
INTERNATIONAL IEC
STANDARD 61920
Second edition
2004-01
Infrared free air applications
© IEC 2004 ⎯ Copyright - all rights reserved
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 Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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International Electrotechnical Commission
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For price, see current catalogue
– 2 – 61920 © IEC:2004(E)
CONTENTS
FOREWORD.3
1 Scope and object .5
2 Normative references.5
3 Terms and definitions .6
4 Symbols.9
4.1 General.9
4.2 Radiators.9
4.3 Receivers.9
5 Classification.10
5.1 General.10
5.2 Physical characteristics of radiators .10
5.2.1 General.10
5.2.2 Ranges of wavelength (criterion 1) .10
5.2.3 Ranges of frequency (criterion 2) .12
5.2.4 Radiant intensity (criterion 3) .12
5.2.5 Angle of radiation (criterion 4) .12
5.2.6 Duration of radiation (criterion 5).12
5.2.7 Identification example for a radiator .13
5.3 Physical characteristics of receivers.13
5.3.1 General.13
5.3.2 Ranges of wavelength and selectivity (criterion 6) .13
5.3.3 Frequency response (criterion 7).14
5.3.4 Sensitivity (criterion 8) .14
5.3.5 Directivity (criterion 9) .14
5.3.6 Example of a receiver .14
5.4 Tolerances.15
5.4.1 Measurement conditions.15
5.4.2 Tolerances of data .15
5.5 Product groups.17
5.6 User areas.18
5.7 Graphical representation of IR systems.18
6 Method for minimizing mutual interferences .20
7 Marking.21
8 Relationship between IR basic standard and application standards.21
Annex A (informative) Example for possible priorization.22
Annex B (informative) Examples of λ/f-diagrams.23
Annex C (informative) Survey of standardization activities in the field of Infrared.27
Bibliography .28
61920 © IEC:2004(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INFRARED FREE AIR APPLICATIONS
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61920, has been prepared by technical area 3, Infrared systems
and applications, of IEC technical committee 100: Audio, video and multimedia systems and
equipment.
This second edition cancels and replaces the first edition published in 1998. This edition
constitutes a technical revision.
The text of this standard is based on the following documents:
FDIS Report on voting
100/717/FDIS 100/749/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
– 4 – 61920 © IEC:2004(E)
The committee has decided that the contents of this publication will remain unchanged until
2006. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
61920 © IEC:2004(E) – 5 –
INFRARED FREE AIR APPLICATIONS
1 Scope and object
This International Standard describes the classification of IR devices into groups and classes
in order to identify and clarify problems caused by mutual interference. Mutual interference is
caused by the increasing parallel application of different infrared (IR) systems.
Due to its physical characteristics, the possibility of local limitation is a special feature of IR
radiation.
In this standard, the wavelength range from 700 nm to 1 6
...
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