EN 61341:2011
(Main)Method of measurement of centre beam intensity and beam angle(s) of reflector lamps
Method of measurement of centre beam intensity and beam angle(s) of reflector lamps
IEC/TR 61341:2010 describes the method of measuring and specifying the centre beam intensity and the associated beam angle(s) of reflector lamps. It applies to: - incandescent, - tungsten halogen, - gas-discharge and LED based reflector lamps for general lighting purposes. It does not apply to lamps for special purposes such as projection lamps. This second edition cancels and replaces the first edition published in 1994 and constitutes a technical revision. Due to the increasing use of reflector equipped LED lamps, the scope has been broadened and measurement conditions been included in order to take account of these lamps. Further, for easier understanding of the relation between the different axis and different intensities, two figures have been added. The luminous intensity distribution shall be reported instead of the centre beam intensity, if the latter is very low ("butterfly" distributions).
Verfahren zur Messung der Lichtstärke in Hauptausstrahlungsrichtung und des (der) Ausstrahlwinkel(s) von Reflektorlampen
Méthode de mesure de l'intensité dans l'axe du faisceau et de l'angle (ou des angles) d'ouverture des lampes à réflecteur
La CEI/TR 61341:2010 décrit la méthode de mesure et de spécification de l'intensité dans l'axe du faisceau des lampes à réflecteur et de l'angle (ou des angles) d'ouverture dudit faisceau. Il s'applique aux lampes à réflecteur pour éclairage général des types suivants: - à filament de tungstène, - tungstène-halogène, - à décharge et à LED. Il ne s'applique pas aux lampes spéciales, telles que les lampes de projection. Cette déuxième édition annule et remplace la première édition publiée en 1994 et constitue une révision technique. Suite à l'utilisation de plus en plus répandue des réflecteurs équipés de lampes à DEL, le domaine d'application a été élargi et des conditions de mesure ont été introduites pour tenir compte de ces lampes. En outre, deux figures ont été ajoutées pour une meilleure compréhension de la relation entre les différents axes et les différentes intensités. La répartition de l'intensité lumineuse doit être utilisée à la place de l'intensité dans l'axe du faisceau, si cette dernière est très faible (répartitions de type "butterfly").
Merilne metode za intenzivnost osrednjega snopa in kot(i) snopa reflektorskih sijalk (IEC/TR 61341:2010)
To tehnično poročilo opisuje merilno metodo in določa intenzivnost osrednjega snopa in z njim povezanih kotov snopa reflektorskih sijalk. Velja za reflektorske sijalke z žarnicami z žarilno nitko, z volframsko halogenskimi in obločno plinskimi žarnicami ter žarnicami, zasnovanimi na tehnologiji LED, za splošne razsvetljave. Ne velja za sijalke za posebne namene, kot so projekcijske sijalke. Ta priporočila se nanašajo samo na preskušanje zasnove sijalk.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2011
Merilne metode za intenzivnost osrednjega snopa in kot(i) snopa reflektorskih
sijalk (IEC/TR 61341:2010)
Method of measurement of centre beam intensity and beam angle(s) of reflector lamps
(IEC/TR 61341:2010)
Verfahren zur Messung der Axial-Lichtstärke und des (der) Ausstrahlungswinkel(s) von
Reflektorlampen (IEC/TR 61341:2010)
Méthode de mesure de l'intensité dans l'axe du faisceau et de l'angle (ou des angles)
d'ouverture des lampes à réflecteur (CEI/TR 61341:2010)
Ta slovenski standard je istoveten z: EN 61341:2011
ICS:
17.180.20 Barve in merjenje svetlobe Colours and measurement of
light
29.140.01 Žarnice na splošno Lamps in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 61341
NORME EUROPÉENNE
July 2011
EUROPÄISCHE NORM
ICS 29.140.20
English version
Method of measurement of centre beam intensity and beam angle(s) of
reflector lamps
(IEC/TR 61341:2010)
Méthode de mesure de l'intensité dans Verfahren zur Messung der Lichtstärke in
l'axe du faisceau et de l'angle (ou des Hauptausstrahlungsrichtung und des (der)
angles) d'ouverture des lampes à Ausstrahlwinkel(s) von Reflektorlampen
réflecteur (IEC/TR 61341:2010)
(CEI/TR 61341:2010)
This European Standard was approved by CENELEC on 2011-07-04. 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, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61341:2011 E
Foreword
The text of the International Standard IEC/TR 61341:2010, prepared by SC 34A, Lamps, of IEC TC 34,
Lamps and related equipment, was submitted to the Unique Acceptance Procedure and was approved by
CENELEC as EN 61341 on 2011-07-04 without any modification.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2012-07-04
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2014-07-04
with the EN have to be withdrawn
__________
Endorsement notice
The text of the International Standard IEC/TR 61341:2010 was approved by CENELEC as a European
Standard without any modification.
__________
IEC/TR 61341 ®
Edition 2.0 2010-02
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
Method of measurement of centre beam intensity and beam angle(s) of reflector
lamps
Méthode de mesure de l’intensité dans l’axe du faisceau et de l'angle (ou des
angles) d’ouverture des lampes à réflecteur
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
K
CODE PRIX
ICS 29.140.20 ISBN 978-2-88910-508-3
– 2 – TR 61341 © IEC:2010
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope.6
2 Terms and definitions .6
3 Basic beam patterns.7
4 General conditions for measurement .7
5 Test arrangement .7
6 Measuring procedure.8
7 Specification of centre beam intensity and beam angle(s).9
Bibliography.10
Figure 1 – Relation between optical beam axis, geometrical-mechanical axis, peak
intensity and centre beam intensity.6
Figure 2 – Measurement of luminous intensity distribution .9
Figure 3 – Case where the centre beam intensity is smaller than 50 % of the peak
intensity.9
TR 61341 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
METHOD OF MEASUREMENT OF CENTRE BEAM INTENSITY
AND BEAM ANGLE(S) OF REFLECTOR LAMPS
FOREWORD
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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.
The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC 61341, which is a technical report, has been prepared by subcommittee 34A: Lamps, of
IEC Technical Committee 34: Lamps and related equipment.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
34A/1340/DTR 34A/1371/RVC
Full information on the voting for the approval of this technical report can be found in the
report on voting indicated in the above table.
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